Metadata-Version: 1.1
Name: plone.app.testing
Version: 4.2.2
Summary: Testing tools for Plone-the-application, based on plone.testing.
Home-page: http://pypi.python.org/pypi/plone.app.testing
Author: Plone Foundation
Author-email: plone-developers@lists.sourceforge.net
License: GPL version 2
Description: Introduction
        ============
        
        .. contents:: Table of contents
        
        ``plone.app.testing`` provides tools for writing integration and functional
        tests for code that runs on top of Plone. It is based on `plone.testing`_.
        If you are unfamiliar with ``plone.testing``, the concept of layers, or the
        `zope.testing`_ testrunner, please take a look at the the ``plone.testing``
        documentation. In fact, even if you are working exclusively with Plone, you
        are likely to want to use some of its features for unit testing.
        
        In short, ``plone.app.testing`` includes:
        
        * A set of layers that set up fixtures containing a Plone site, intended for
          writing integration and functional tests.
        * A collection of helper functions, some useful for writing your own layers
          and some applicable to tests themselves.
        * A convenient layer base class, extending ``plone.testing.Layer``, which
          makes it easier to write custom layers extending the Plone site fixture,
          with proper isolation and tear-down.
        * Cleanup hooks for ``zope.testing.cleanup`` to clean up global state found
          in a Plone installation. This is useful for unit testing.
        
        Compatibility
        -------------
        
        ``plone.app.testing`` 4.x works with Plone 4 and Zope 2.12. It may work with
        newer versions. It will not work with earlier versions. Use
        ``plone.app.testing`` 3.x for Plone 3 and Zope 2.10.
        
        Installation and usage
        ======================
        
        To use ``plone.app.testing`` in your own package, you need to add it as a
        dependency. Most people prefer to keep test-only dependencies separate, so
        that they do not need to be installed in scenarios (such as on a production
        server) where the tests will not be run. This can be achieved using a
        ``test`` extra.
        
        In ``setup.py``, add or modify the ``extras_require`` option, like so::
        
            extras_require = {
                'test': [
                        'plone.app.testing',
                    ]
            },
        
        This will also include ``plone.testing``, with the ``[z2]``, ``[zca]`` and
        ``[zodb]`` extras (which ``plone.app.testing`` itself relies on).
        
        Please see the `plone.testing`_ documentation for more details about how to
        add a test runner to your buildout, and how to write and run tests.
        
        Layer reference
        ===============
        
        This package contains a layer class,
        ``plone.app.testing.layers.PloneFixture``, which sets up a Plone site fixture.
        It is combined with other layers from `plone.testing`_ to provide a number of
        layer instances. It is important to realise that these layers all have the
        same fundamental fixture: they just manage test setup and tear-down
        differently.
        
        When set up, the fixture will:
        
        * Create a ZODB sandbox, via a stacked ``DemoStorage``. This ensures
          persistent changes made during layer setup can be cleanly torn down.
        * Configure a global component registry sandbox. This ensures that global
          component registrations (e.g. as a result of loading ZCML configuration)
          can be cleanly torn down.
        * Create a configuration context with the ``disable-autoinclude`` feature
          set. This has the effect of stopping Plone from automatically loading the
          configuration of any installed package that uses the
          ``z3c.autoinclude.plugin:plone`` entry point via `z3c.autoinclude`_. (This
          is to avoid accidentally polluting the test fixture - custom layers should
          load packages' ZCML configuration explicitly if required).
        * Install a number of Zope 2-style products on which Plone depends.
        * Load the ZCML for these products, and for ``Products.CMFPlone``, which in
          turn pulls in the configuration for the core of Plone.
        * Create a default Plone site, with the default theme enabled, but with no
          default content.
        * Add a user to the root user folder with the ``Manager`` role.
        * Add a test user to this instance with the ``Member`` role.
        
        For each test:
        
        * The test user is logged in
        * The local component site is set
        * Various global caches are cleaned up
        
        Various constants in the module ``plone.app.testing.interfaces`` are defined
        to describe this environment:
        
        +----------------------+--------------------------------------------------+
        | **Constant**         | **Purpose**                                      |
        +----------------------+--------------------------------------------------+
        | PLONE_SITE_ID        | The id of the Plone site object inside the Zope  |
        |                      | application root.                                |
        +----------------------+--------------------------------------------------+
        | PLONE_SITE_TITLE     | The title of the Plone site                      |
        +----------------------+--------------------------------------------------+
        | DEFAULT_LANGUAGE     | The default language of the Plone site ('en')    |
        +----------------------+--------------------------------------------------+
        | TEST_USER_ID         | The id of the test user                          |
        +----------------------+--------------------------------------------------+
        | TEST_USER_NAME       | The username of the test user                    |
        +----------------------+--------------------------------------------------+
        | TEST_USER_PASSWORD   | The password of the test user                    |
        +----------------------+--------------------------------------------------+
        | TEST_USER_ROLES      | The default global roles of the test user -      |
        |                      | ('Member',)                                      |
        +----------------------+--------------------------------------------------+
        | SITE_OWNER_NAME      | The username of the user owning the Plone site.  |
        +----------------------+--------------------------------------------------+
        | SITE_OWNER_PASSWORD  | The password of the user owning the Plone site.  |
        +----------------------+--------------------------------------------------+
        
        All the layers also expose a resource in addition to those from their
        base layers, made available during tests:
        
        ``portal``
           The Plone site root.
        
        Plone site fixture
        ------------------
        
        +------------+--------------------------------------------------+
        | Layer:     | ``plone.app.testing.PLONE_FIXTURE``              |
        +------------+--------------------------------------------------+
        | Class:     | ``plone.app.testing.layers.PloneFixture``        |
        +------------+--------------------------------------------------+
        | Bases:     | ``plone.testing.z2.STARTUP``                     |
        +------------+--------------------------------------------------+
        | Resources: |                                                  |
        +------------+--------------------------------------------------+
        
        This layer sets up the Plone site fixture on top of the ``z2.STARTUP``
        fixture.
        
        You should not use this layer directly, as it does not provide any test
        lifecycle or transaction management. Instead, you should use a layer
        created with either the ``IntegrationTesting`` or ``FunctionalTesting``
        classes, as outlined below.
        
        Integration and functional testing test lifecycles
        --------------------------------------------------
        
        ``plone.app.testing`` comes with two layer classes, ``IntegrationTesting``
        and ``FunctionalTesting``, which derive from the corresponding layer classes
        in ``plone.testing.z2``.
        
        These classes set up the ``app``, ``request`` and ``portal`` resources, and
        reset the fixture (including various global caches) between each test run.
        
        As with the classes in ``plone.testing``, the ``IntegrationTesting`` class
        will create a new transaction for each test and roll it back on test tear-
        down, which is efficient for integration testing, whilst ``FunctionalTesting``
        will create a stacked ``DemoStorage`` for each test and pop it on test tear-
        down, making it possible to exercise code that performs an explicit commit
        (e.g. via tests that use ``zope.testbrowser``).
        
        When creating a custom fixture, the usual pattern is to create a new layer
        class that has ``PLONE_FIXTURE`` as its default base, instantiating that as a
        separate "fixture" layer. This layer is not to be used in tests directly,
        since it won't have test/transaction lifecycle management, but represents a
        shared fixture, potentially for both functional and integration testing. It
        is also the point of extension for other layers that follow the same pattern.
        
        Once this fixture has been defined, "end-user" layers can be defined using
        the ``IntegrationTesting`` and ``FunctionalTesting`` classes. For example::
        
            from plone.testing import Layer
            from plone.app.testing import PLONE_FIXTURE
            from plone.app.testing import IntegrationTesting, FunctionalTesting
        
            class MyFixture(Layer):
                defaultBases = (PLONE_FIXTURE,)
        
                ...
        
            MY_FIXTURE = MyFixture()
        
            MY_INTEGRATION_TESTING = IntegrationTesting(bases=(MY_FIXTURE,), name="MyFixture:Integration")
            MY_FUNCTIONAL_TESTING = FunctionalTesting(bases=(MY_FIXTURE,), name="MyFixture:Functional")
        
        See the ``PloneSandboxLayer`` layer below for a more comprehensive example.
        
        Plone integration testing
        -------------------------
        
        +------------+--------------------------------------------------+
        | Layer:     | ``plone.app.testing.PLONE_INTEGRATION_TESTING``  |
        +------------+--------------------------------------------------+
        | Class:     | ``plone.app.testing.layers.IntegrationTesting``  |
        +------------+--------------------------------------------------+
        | Bases:     | ``plone.app.testing.PLONE_FIXTURE``              |
        +------------+--------------------------------------------------+
        | Resources: | ``portal`` (test setup only)                     |
        +------------+--------------------------------------------------+
        
        This layer can be used for integration testing against the basic
        ``PLONE_FIXTURE`` layer.
        
        You can use this directly in your tests if you do not need to set up any
        other shared fixture.
        
        However, you would normally not extend this layer - see above.
        
        
        Plone functional testing
        ------------------------
        
        +------------+--------------------------------------------------+
        | Layer:     | ``plone.app.testing.PLONE_FUNCTIONAL_TESTING``   |
        +------------+--------------------------------------------------+
        | Class:     | ``plone.app.testing.layers.FunctionalTesting``   |
        +------------+--------------------------------------------------+
        | Bases:     | ``plone.app.testing.PLONE_FIXTURE``              |
        +------------+--------------------------------------------------+
        | Resources: | ``portal`` (test setup only)                     |
        +------------+--------------------------------------------------+
        
        This layer can be used for functional testing against the basic
        ``PLONE_FIXTURE`` layer, for example using ``zope.testbrowser``.
        
        You can use this directly in your tests if you do not need to set up any
        other shared fixture.
        
        Again, you would normally not extend this layer - see above.
        
        Plone ZServer
        -------------
        
        +------------+--------------------------------------------------+
        | Layer:     | ``plone.app.testing.PLONE_ZSERVER``              |
        +------------+--------------------------------------------------+
        | Class:     | ``plone.testing.z2.ZServer``                     |
        +------------+--------------------------------------------------+
        | Bases:     | ``plone.app.testing.PLONE_FUNCTIONAL_TESTING``   |
        +------------+--------------------------------------------------+
        | Resources: | ``portal`` (test setup only)                     |
        +------------+--------------------------------------------------+
        
        This is layer is intended for functional testing using a live, running HTTP
        server, e.g. using Selenium or Windmill.
        
        Again, you would not normally extend this layer. To create a custom layer
        that has a running ZServer, you can use the same pattern as this one, e.g.::
        
            from plone.testing import Layer
            from plone.testing import z2
            from plone.app.testing import PLONE_FIXTURE
            from plone.app.testing import FunctionalTesting
        
            class MyFixture(Layer):
                defaultBases = (PLONE_FIXTURE,)
        
                ...
        
            MY_FIXTURE = MyFixture()
            MY_ZSERVER = FunctionalTesting(bases=(MY_FIXTURE, z2.ZSERVER_FIXTURE), name='MyFixture:ZServer')
        
        See the description of the ``z2.ZSERVER`` layer in `plone.testing`_
        for further details.
        
        Plone FTP server
        ----------------
        
        +------------+--------------------------------------------------+
        | Layer:     | ``plone.app.testing.PLONE_FTP_SERVER``           |
        +------------+--------------------------------------------------+
        | Class:     | ``plone.app.testing.layers.FunctionalTesting``   |
        +------------+--------------------------------------------------+
        | Bases:     | ``plone.app.testing.PLONE_FIXTURE``              |
        |            | ``plone.testing.z2.ZSERVER_FIXTURE``             |
        +------------+--------------------------------------------------+
        | Resources: | ``portal`` (test setup only)                     |
        +------------+--------------------------------------------------+
        
        This is layer is intended for functional testing using a live FTP server.
        
        It is semantically equivalent to the ``PLONE_ZSERVER`` layer.
        
        See the description of the ``z2.FTP_SERVER`` layer in `plone.testing`_
        for further details.
        
        Helper functions
        ================
        
        A number of helper functions are provided for use in tests and custom layers.
        
        Plone site context manager
        --------------------------
        
        ``ploneSite(db=None, connection=None, environ=None)``
            Use this context manager to access and make changes to the Plone site
            during layer setup. In most cases, you will use it without arguments,
            but if you have special needs, you can tie it to a particular database
            instance. See the description of the ``zopeApp()`` context manager in
            `plone.testing`_ (which this context manager uses internally) for details.
        
            The usual pattern is to call it during ``setUp()`` or ``tearDown()`` in
            your own layers::
        
                from plone.testing import Layer
                from plone.app.testing import ploneSite
        
                class MyLayer(Layer):
        
                    def setUp(self):
        
                        ...
        
                        with ploneSite() as portal:
        
                            # perform operations on the portal, e.g.
                            portal.title = u"New title"
        
            Here, ``portal`` is the Plone site root. A transaction is begun before
            entering the ``with`` block, and will be committed upon exiting the block,
            unless an exception is raised, in which case it will be rolled back.
        
            Inside the block, the local component site is set to the Plone site root,
            so that local component lookups should work.
        
            **Warning:** Do not attempt to load ZCML files inside a ``ploneSite``
            block. Because the local site is set to the Plone site, you may end up
            accidentally registering components in the local site manager, which can
            cause pickling errors later.
        
            **Note:** You should not use this in a test, or in a ``testSetUp()`` or
            ``testTearDown()`` method of a layer based on one of the layer in this
            package. Use the ``portal`` resource instead.
        
            **Also note:** If you are writing a layer setting up a Plone site fixture,
            you may want to use the ``PloneSandboxLayer`` layer base class, and
            implement the ``setUpZope()``, ``setUpPloneSite()``, ``tearDownZope()``
            and/or ``tearDownPloneSite()`` methods instead. See below.
        
        User management
        ---------------
        
        ``login(portal, userName)``
            Simulate login as the given user. This is based on the ``z2.login()``
            helper in `plone.testing`_, but instead of passing a specific user folder,
            you pass the portal (e.g. as obtained via the ``portal`` layer resource).
        
            For example::
        
                import unittest2 as unittest
        
                from plone.app.testing import PLONE_INTEGRATION_TESTING
                from plone.app.testing import TEST_USER_NAME
                from plone.app.testing import login
        
                ...
        
                class MyTest(unittest.TestCase):
        
                    layer = PLONE_INTEGRATION_TESTING
        
                    def test_something(self):
                        portal = self.layer['portal']
                        login(portal, TEST_USER_NAME)
        
                        ...
        
        ``logout()``
            Simulate logging out, i.e. becoming the anonymous user. This is equivalent
            to the ``z2.logout()`` helper in `plone.testing`_.
        
            For example::
        
                import unittest2 as unittest
        
                from plone.app.testing import PLONE_INTEGRATION_TESTING
                from plone.app.testing import logout
        
                ...
        
                class MyTest(unittest.TestCase):
        
                    layer = PLONE_INTEGRATION_TESTING
        
                    def test_something(self):
                        portal = self.layer['portal']
                        logout()
        
                        ...
        
        ``setRoles(portal, userId, roles)``
            Set the roles for the given user. ``roles`` is a list of roles.
        
            For example::
        
                import unittest2 as unittest
        
                from plone.app.testing import PLONE_INTEGRATION_TESTING
                from plone.app.testing import TEST_USER_ID
                from plone.app.testing import setRoles
        
                ...
        
                class MyTest(unittest.TestCase):
        
                    layer = PLONE_INTEGRATION_TESTING
        
                    def test_something(self):
                        portal = self.layer['portal']
                        setRoles(portal, TEST_USER_ID, ['Manager'])
        
        Product and profile installation
        --------------------------------
        
        ``applyProfile(portal, profileName)``
            Install a GenericSetup profile (usually an extension profile) by name,
            using the ``portal_setup`` tool. The name is normally made up of a package
            name and a profile name. Do not use the ``profile-`` prefix.
        
            For example::
        
                from plone.testing import Layer
        
                from plone.app.testing import ploneSite
                from plone.app.testing import applyProfile
        
                ...
        
                class MyLayer(Layer):
        
                    ...
        
                    def setUp(self):
        
                        ...
        
                        with ploneSite() as portal:
                            applyProfile(portal, 'my.product:default')
        
                            ...
        
        ``quickInstallProduct(portal, productName, reinstall=False)``
            Use this function to install a particular product into the given Plone
            site, using the ``portal_quickinstaller`` tool. If ``reinstall`` is
            ``False`` and the product is already installed, nothing will happen; if
            ``reinstall`` is ``True``, the product will be reinstalled. The
            ``productName`` should be a full dotted name, e.g. ``Products.MyProduct``,
            or ``my.product``.
        
            For example::
        
                from plone.testing import Layer
        
                from plone.app.testing import ploneSite
                from plone.app.testing import quickInstallProduct
        
                ...
        
                class MyLayer(Layer):
        
                    ...
        
                    def setUp(self):
        
                        ...
        
                        with ploneSite() as portal:
                            quickInstallProduct(portal, 'my.product')
        
                            ...
        
        Component architecture sandboxing
        ---------------------------------
        
        ``pushGlobalRegistry(portal, new=None, name=None)``
            Create or obtain a stack of global component registries, and push a new
            registry to the top of the stack. This allows Zope Component Architecture
            registrations (e.g. loaded via ZCML) to be effectively torn down.
        
            If you are going to use this function, please read the corresponding
            documentation for ``zca.pushGlobalRegistry()`` in `plone.testing`_. In
            particular, note that you *must* reciprocally call ``popGlobalRegistry()``
            (see below).
        
            This helper is based on ``zca.pushGlobalRegistry()``, but will also fix
            up the local component registry in the Plone site ``portal`` so that it
            has the correct bases.
        
            For example::
        
                from plone.testing import Layer
        
                from plone.app.testing import ploneSite
                from plone.app.testing import pushGlobalRegistry
                from plone.app.testing import popGlobalRegistry
        
                ...
        
                class MyLayer(Layer):
        
                    ...
        
                    def setUp(self):
        
                        ...
        
                        with ploneSite() as portal:
                            pushGlobalRegistry(portal)
        
                            ...
        
        ``popGlobalRegistry(portal)``
            Tear down the top of the component architecture stack, as created with
            ``pushGlobalRegistry()``
        
            For example::
        
                ...
        
                    def tearDown(self):
        
                        with ploneSite() as portal:
                            popGlobalRegistry(portal)
        
        Global state cleanup
        --------------------
        
        ``tearDownMultiPluginRegistration(pluginName)``
            PluggableAuthService "MultiPlugins" are kept in a global registry. If
            you have registered a plugin, e.g. using the ``registerMultiPlugin()``
            API, you should tear that registration down in your layer's ``tearDown()``
            method. You can use this helper, passing a plugin name.
        
            For example::
        
                from plone.testing import Layer
        
                from plone.app.testing import ploneSite
                from plone.app.testing import tearDownMultiPluginRegistration
        
                ...
        
                class MyLayer(Layer):
        
                    ...
        
                    def tearDown(self):
        
                        tearDownMultiPluginRegistration('MyPlugin')
        
                        ...
        
        Layer base class
        ================
        
        If you are writing a custom layer to test your own Plone add-on product, you
        will often want to do the following on setup:
        
        1. Stack a new ``DemoStorage`` on top of the one from the base layer. This
           ensures that any persistent changes performed during layer setup can be
           torn down completely, simply by popping the demo storage.
        
        2. Stack a new ZCML configuration context. This keeps separate the information
           about which ZCML files were loaded, in case other, independent layers want
           to load those same files after this layer has been torn down.
        
        3. Push a new global component registry. This allows you to register
           components (e.g. by loading ZCML or using the test API from
           ``zope.component``) and tear down those registration easily by popping the
           component registry.
        
        4. Load your product's ZCML configuration
        
        5. Install the product into the test fixture Plone site
        
        Of course, you may wish to make other changes too, such as creating some base
        content or changing some settings.
        
        On tear-down, you will then want to:
        
        1. Remove any Pluggable Authentication Service "multi-plugins" that were added
           to the global registry during setup.
        
        2. Pop the global component registry to unregister components loaded via ZCML.
        
        3. Pop the configuration context resource to restore its state.
        
        4. Pop the ``DemoStorage`` to undo any persistent changes.
        
        If you have made other changes on setup that are not covered by this broad
        tear-down, you'll also want to tear those down explicitly here.
        
        Stacking a demo storage and component registry is the safest way to avoid
        fixtures bleeding between tests. However, it can be tricky to ensure that
        everything happens in the right order.
        
        To make things easier, you can use the ``PloneSandboxLayer`` layer base class.
        This extends ``plone.testing.Layer`` and implements ``setUp()`` and
        ``tearDown()`` for you. You simply have to override one or more of the
        following methods:
        
        ``setUpZope(self, app, configurationContext)``
            This is called during setup. ``app`` is the Zope application root.
            ``configurationContext`` is a newly stacked ZCML configuration context.
            Use this to load ZCML, install products using the helper
            ``plone.testing.z2.installProduct()``, or manipulate other global state.
        
        ``setUpPloneSite(self, portal)``
            This is called during setup. ``portal`` is the Plone site root as
            configured by the ``ploneSite()`` context manager. Use this to make
            persistent changes inside the Plone site, such as installing products
            using the ``applyProfile()`` or ``quickInstallProduct()`` helpers, or
            setting up default content.
        
        ``tearDownZope(self, app)``
            This is called during tear-down, before the global component registry and
            stacked ``DemoStorage`` are popped. Use this to tear down any additional
            global state.
        
            **Note:** Global component registrations PAS multi-plugin registrations are
            automatically torn down. Product installations are not, so you should use
            the ``uninstallProduct()`` helper if any products were installed during
            ``setUpZope()``.
        
        ``tearDownPloneSite(self, portal)``
            This is called during tear-down, before the global component registry and
            stacked ``DemoStorage`` are popped. During this method, the local
            component site hook is set, giving you access to local components.
        
            **Note:** Persistent changes to the ZODB are automatically torn down by
            virtue of a stacked ``DemoStorage``. Thus, this method is less commonly
            used than the others described here.
        
        Let's show a more comprehensive example of what such a layer may look like.
        Imagine we have a product ``my.product``. It has a ``configure.zcml`` file
        that loads some components and registers a ``GenericSetup`` profile, making it
        installable in the Plone site. On layer setup, we want to load the product's
        configuration and install it into the Plone site.
        
        The layer would conventionally live in a module ``testing.py`` at the root of
        the package, i.e. ``my.product.testing``::
        
            from plone.app.testing import PloneSandboxLayer
            from plone.app.testing import PLONE_FIXTURE
            from plone.app.testing import IntegrationTesting
        
            from plone.testing import z2
        
            class MyProduct(PloneSandboxLayer):
        
                defaultBases = (PLONE_FIXTURE,)
        
                def setUpZope(self, app, configurationContext):
                    # Load ZCML
                    import my.product
                    self.loadZCML(package=my.product)
        
                    # Install product and call its initialize() function
                    z2.installProduct(app, 'my.product')
        
                    # Note: you can skip this if my.product is not a Zope 2-style
                    # product, i.e. it is not in the Products.* namespace and it
                    # does not have a <five:registerPackage /> directive in its
                    # configure.zcml.
        
                def setUpPloneSite(self, portal):
                    # Install into Plone site using portal_setup
                    self.applyProfile(portal, 'my.product:default')
        
                def tearDownZope(self, app):
                    # Uninstall product
                    z2.uninstallProduct(app, 'my.product')
        
                    # Note: Again, you can skip this if my.product is not a Zope 2-
                    # style product
        
            MY_PRODUCT_FIXTURE = MyProduct()
            MY_PRODUCT_INTEGRATION_TESTING = IntegrationTesting(bases=(MY_PRODUCT_FIXTURE,), name="MyProduct:Integration")
        
        Here, ``MY_PRODUCT_FIXTURE`` is the "fixture" base layer. Other layers can
        use this as a base if they want to build on this fixture, but it would not
        be used in tests directly. For that, we have crated an ``IntegrationTesting``
        instance, ``MY_PRODUCT_INTEGRATION_TESTING``.
        
        Of course, we could have created a ``FunctionalTesting`` instance as
        well, e.g.::
        
            MY_PRODUCT_FUNCTIONAL_TESTING = FunctionalTesting(bases=(MY_PRODUCT_FIXTURE,), name="MyProduct:Functional")
        
        Of course, we could do a lot more in the layer setup. For example, let's say
        the product had a content type 'my.product.page' and we wanted to create some
        test content. We could do that with::
        
            from plone.app.testing import TEST_USER_ID
            from plone.app.testing import TEST_USER_NAME
            from plone.app.testing import login
            from plone.app.testing import setRoles
        
            ...
        
                def setUpPloneSite(self, portal):
        
                    ...
        
                    setRoles(portal, TEST_USER_ID, ['Manager'])
                    login(portal, TEST_USER_NAME)
                    portal.invokeFactory('my.product.page', 'page-1', title=u"Page 1")
                    setRoles(portal, TEST_USER_ID, ['Member'])
        
            ...
        
        Note that unlike in a test, there is no user logged in at layer setup time,
        so we have to explicitly log in as the test user. Here, we also grant the test
        user the ``Manager`` role temporarily, to allow object construction (which
        performs an explicit permission check).
        
            **Note:** Automatic tear down suffices for all the test setup above. If
            the only changes made during layer setup are to persistent, in-ZODB data,
            or the global component registry then no additional tear-down is required.
            For any other global state being managed, you should write a
            ``tearDownPloneSite()`` method to perform the necessary cleanup.
        
        Given this layer, we could write a test (e.g. in ``tests.py``) like::
        
            import unittest2 as unittest
            from my.product.testing import MY_PRODUCT_INTEGRATION_TESTING
        
            class IntegrationTest(unittest.TestCase):
        
                layer = MY_PRODUCT_INTEGRATION_TESTING
        
                def test_page_dublin_core_title(self):
                    portal = self.layer['portal']
        
                    page1 = portal['page-1']
                    page1.title = u"Some title"
        
                    self.assertEqual(page1.Title(), u"Some title")
        
        Please see `plone.testing`_ for more information about how to write and run
        tests and assertions.
        
        Common test patterns
        ====================
        
        `plone.testing`_'s documentation contains details about the fundamental
        techniques for writing tests of various kinds. In a Plone context, however,
        some patterns tend to crop up time and again. Below, we will attempt to
        catalogue some of the more commonly used patterns via short code samples.
        
        The examples in this section are all intended to be used in tests. Some may
        also be useful in layer set-up/tear-down. We have used ``unittest`` syntax
        here, although most of these examples could equally be adopted to doctests.
        
        We will assume that you are using a layer that has ``PLONE_FIXTURE`` as a base
        (whether directly or indirectly) and uses the ``IntegrationTesting`` or
        ``FunctionalTesting`` classes as shown above.
        
        We will also assume that the variables ``app``, ``portal`` and ``request`` are
        defined from the relative layer resources, e.g. with::
        
            app = self.layer['app']
            portal = self.layer['portal']
            request = self.layer['request']
        
        Note that in a doctest set up using the ``layered()`` function from
        ``plone.testing``, ``layer`` is in the global namespace, so you would do e.g.
        ``portal = layer['portal']``.
        
        Where imports are required, they are shown alongside the code example. If
        a given import or variable is used more than once in the same section, it
        will only be shown once.
        
        Basic content management
        ------------------------
        
        To create a content item of type 'Folder' with the id 'f1' in the root of
        the portal::
        
            portal.invokeFactory('Folder', 'f1', title=u"Folder 1")
        
        The ``title`` argument is optional. Other basic properties, like
        ``description``, can be set as well.
        
        Note that this may fail with an ``Unauthorized`` exception, since the test
        user won't normally have permissions to add content in the portal root, and
        the ``invokeFactory()`` method performs an explicit security check. You can
        set the roles of the test user to ensure that he has the necessary
        permissions::
        
            from plone.app.testing import setRoles
            from plone.app.testing import TEST_USER_ID
        
            setRoles(portal, TEST_USER_ID, ['Manager'])
            portal.invokeFactory('Folder', 'f1', title=u"Folder 1")
        
        To obtain this object, acquisition-wrapped in its parent::
        
            f1 = portal['f1']
        
        To make an assertion against an attribute or method of this object::
        
            self.assertEqual(f1.Title(), u"Folder 1")
        
        To modify the object::
        
            f1.setTitle(u"Some title")
        
        To add another item inside the folder f1::
        
            f1.invokeFactory('Document', 'd1', title=u"Document 1")
            d1 = f1['d1']
        
        To check if an object is in a container::
        
            self.assertTrue('f1' in portal)
        
        To delete an object from a container:
        
            del portal['f1']
        
        There is no content or workflows installed by default. You can enable workflows::
        
            portal.portal_workflow.setDefaultChain("simple_publication_workflow")
        
        Searching
        ---------
        
        To obtain the ``portal_catalog`` tool::
        
            from Products.CMFCore.utils import getToolByName
        
            catalog = getToolByName(portal, 'portal_catalog')
        
        To search the catalog::
        
            results = catalog(portal_type="Document")
        
        Keyword arguments are search parameters. The result is a lazy list. You can
        call ``len()`` on it to get the number of search results, or iterate through
        it. The items in the list are catalog brains. They have attributes that
        correspond to the "metadata" columns configured for the catalog, e.g.
        ``Title``, ``Description``, etc. Note that these are simple attributes (not
        methods), and contain the value of the corresponding attribute or method from
        the source object at the time the object was cataloged (i.e. they are not
        necessarily up to date).
        
        To make assertions against the search results::
        
            self.assertEqual(len(results), 1)
        
            # Copy the list into memory so that we can use [] notation
            results = list(results)
        
            # Check the first (and in this case only) result in the list
            self.assertEqual(results[0].Title, u"Document 1")
        
        To get the path of a given item in the search results::
        
            self.assertEqual(resuls[0].getPath(), portal.absolute_url_path() + '/f1/d1')
        
        To get an absolute URL::
        
            self.assertEqual(resuls[0].getURL(), portal.absolute_url() + '/f1/d1')
        
        To get the original object::
        
            obj = results[0].getObject()
        
        To re-index an object d1 so that its catalog information is up to date::
        
            d1.reindexObject()
        
        User management
        ---------------
        
        To create a new user::
        
            from Products.CMFCore.utils import getToolByName
        
            acl_users = getToolByName(portal, 'acl_users')
        
            acl_users.userFolderAddUser('user1', 'secret', ['Member'], [])
        
        The arguments are the username (which will also be the user id), the password,
        a list of roles, and a list of domains (rarely used).
        
        To make a particular user active ("logged in") in the integration testing
        environment use the ``login`` method and pass it the username::
        
            from plone.app.testing import login
        
            login(portal, 'user1')
        
        To log out (become anonymous)::
        
            from plone.app.testing import logout
        
            logout()
        
        To obtain the current user::
        
            from AccessControl import getSecurityManager
        
            user = getSecurityManager().getUser()
        
        To obtain a user by name::
        
            user = acl_users.getUser('user1')
        
        Or by user id (id and username are often the same, but can differ in real-world
        scenarios)::
        
            user = acl_users.getUserById('user1')
        
        To get the user's user name::
        
            userName = user.getUserName()
        
        To get the user's id::
        
            userId = user.getId()
        
        Permissions and roles
        ---------------------
        
        To get a user's roles in a particular context (taking local roles into
        account)::
        
            from AccessControl import getSecurityManager
        
            user = getSecurityManager().getUser()
        
            self.assertEqual(user.getRolesInContext(portal), ['Member'])
        
        To change the test user's roles::
        
            from plone.app.testing import setRoles
            from plone.app.testing import TEST_USER_ID
        
            setRoles(portal, TEST_USER_ID, ['Member', 'Manager'])
        
        Pass a different user name to change the roles of another user.
        
        To grant local roles to a user in the folder f1::
        
            f1.manage_setLocalRoles(TEST_USER_ID, ('Reviewer',))
        
        To check the local roles of a given user in the folder 'f1'::
        
            self.assertEqual(f1.get_local_roles_for_userid(TEST_USER_ID), ('Reviewer',))
        
        To grant the 'View' permission to the roles 'Member' and 'Manager' in the
        portal root without acquiring additional roles from its parents::
        
            portal.manage_permission('View', ['Member', 'Manager'], acquire=False)
        
        This method can also be invoked on a folder or individual content item.
        
        To assert which roles have the permission 'View' in the context of the
        portal::
        
            roles = [r['name'] for r in portal.rolesOfPermission('View') if r['selected']]
            self.assertEqual(roles, ['Member', 'Manager'])
        
        To assert which permissions have been granted to the 'Reviewer' role in the
        context of the portal::
        
            permissions = [p['name'] for p in portal.permissionsOfRole('Reviewer') if p['selected']]
            self.assertTrue('Review portal content' in permissions)
        
        To add a new role::
        
            portal._addRole('Tester')
        
        This can now be assigned to users globally (using the ``setRoles`` helper)
        or locally (using ``manage_setLocalRoles()``).
        
        To assert which roles are available in a given context::
        
            self.assertTrue('Tester' in portal.valid_roles())
        
        Workflow
        --------
        
        To set the default workflow chain::
        
            from Products.CMFCore.utils import getToolByName
        
            workflowTool = getToolByName(portal, 'portal_workflow')
        
            workflowTool.setDefaultChain('my_workflow')
        
        In Plone, most chains contain only one workflow, but the ``portal_workflow``
        tool supports longer chains, where an item is subject to more than one
        workflow simultaneously.
        
        To set a multi-workflow chain, separate workflow names by commas.
        
        To get the default workflow chain::
        
            self.assertEqual(workflowTool.getDefaultChain(), ('my_workflow',))
        
        To set the workflow chain for the 'Document' type::
        
            workflowTool.setChainForPortalTypes(('Document',), 'my_workflow')
        
        You can pass multiple type names to set multiple chains at once. To set a
        multi-workflow chain, separate workflow names by commas. To indicate that a
        type should use the default workflow, use the special chain name '(Default)'.
        
        To get the workflow chain for the portal type 'Document'::
        
            chains = dict(workflowTool.listChainOverrides())
            defaultChain = workflowTool.getDefaultChain()
            documentChain = chains.get('Document', defaultChain)
        
            self.assertEqual(documentChain, ('my_other_workflow',))
        
        To get the current workflow chain for the content object f1::
        
            self.assertEqual(workflowTool.getChainFor(f1), ('my_workflow',))
        
        To update all permissions after changing the workflow::
        
            workflowTool.updateRoleMappings()
        
        To change the workflow state of the content object f1 by invoking the
        transaction 'publish'::
        
            workflowTool.doActionFor(f1, 'publish')
        
        Note that this performs an explicit permission check, so if the current user
        doesn't have permission to perform this workflow action, you may get an error
        indicating the action is not available. If so, use ``login()`` or
        ``setRoles()`` to ensure the current user is able to change the workflow
        state.
        
        To check the current workflow state of the content object f1::
        
            self.assertEqual(workflowTool.getInfoFor(f1, 'review_state'), 'published')
        
        Properties
        ----------
        
        To set the value of a property on the portal root::
        
            portal._setPropValue('title', u"My title")
        
        To assert the value of a property on the portal root::
        
            self.assertEqual(portal.getProperty('title'), u"My title")
        
        To change the value of a property in a property sheet in the
        ``portal_properties`` tool::
        
            from Products.CMFCore.utils import getToolByName
        
            propertiesTool = getToolByName(portal, 'portal_properties')
            siteProperties = propertiesTool['site_properties']
        
            siteProperties._setPropValue('many_users', True)
        
        To assert the value of a property in a property sheet in the
        ``portal_properties`` tool::
        
            self.assertEqual(siteProperties.getProperty('many_users'), True)
        
        Installing products and extension profiles
        ------------------------------------------
        
        To apply a particular extension profile::
        
            from plone.app.testing import applyProfile
        
            applyProfile(portal, 'my.product:default')
        
        This is the preferred method of installing a product's configuration.
        
        To install an add-on product into the Plone site using the
        ``portal_quickinstaller`` tool::
        
            from plone.app.testing import quickInstallProduct
        
            quickInstallProduct(portal, 'my.product')
        
        To re-install a product using the quick-installer::
        
            quickInstallProduct(portal, 'my.product', reinstall=True)
        
        Note that both of these assume the product's ZCML has been loaded, which is
        usually done during layer setup. See the layer examples above for more details
        on how to do that.
        
        When writing a product that has an installation extension profile, it is often
        desirable to write tests that inspect the state of the site after the profile
        has been applied. Some of the more common such tests are shown below.
        
        To verify that a product has been installed (e.g. as a dependency via
        ``metadata.xml``)::
        
            from Products.CMFCore.utils import getToolByName
        
            quickinstaller = getToolByName(portal, 'portal_quickinstaller')
            self.assertTrue(quickinstaller.isProductInstalled('my.product'))
        
        To verify that a particular content type has been installed (e.g. via
        ``types.xml``)::
        
            typesTool = getToolByName(portal, 'portal_types')
        
            self.assertNotEqual(typesTool.getTypeInfo('mytype'), None)
        
        To verify that a new catalog index has been installed (e.g. via
        ``catalog.xml``)::
        
            catalog = getToolByName(portal, 'portal_catalog')
        
            self.assertTrue('myindex' in catalog.indexes())
        
        To verify that a new catalog metadata column has been added (e.g. via
        ``catalog.xml``)::
        
            self.assertTrue('myattr' in catalog.schema())
        
        To verify that a new workflow has been installed (e.g. via
        ``workflows.xml``)::
        
            workflowTool = getToolByName(portal, 'portal_workflow')
        
            self.assertNotEqual(workflowTool.getWorkflowById('my_workflow'), None)
        
        To verify that a new workflow has been assigned to a type (e.g. via
        ``workflows.xml``)::
        
            self.assertEqual(dict(workflowTool.listChainOverrides())['mytype'], ('my_workflow',))
        
        To verify that a new workflow has been set as the default (e.g. via
        ``workflows.xml``)::
        
            self.assertEqual(workflowTool.getDefaultChain(), ('my_workflow',))
        
        To test the value of a property in the ``portal_properties`` tool (e.g. set
        via ``propertiestool.xml``):::
        
            propertiesTool = getToolByName(portal, 'portal_properties')
            siteProperties = propertiesTool['site_properties']
        
            self.assertEqual(siteProperties.getProperty('some_property'), "some value")
        
        To verify that a stylesheet has been installed in the ``portal_css`` tool
        (e.g. via ``cssregistry.xml``)::
        
            cssRegistry = getToolByName(portal, 'portal_css')
        
            self.assertTrue('mystyles.css' in cssRegistry.getResourceIds())
        
        To verify that a JavaScript resource has been installed in the
        ``portal_javascripts`` tool (e.g. via ``jsregistry.xml``)::
        
            jsRegistry = getToolByName(portal, 'portal_javascripts')
        
            self.assertTrue('myscript.js' in jsRegistry.getResourceIds())
        
        To verify that a new role has been added (e.g. via ``rolemap.xml``)::
        
            self.assertTrue('NewRole' in portal.valid_roles())
        
        To verify that a permission has been granted to a given set of roles (e.g. via
        ``rolemap.xml``)::
        
            roles = [r['name'] for r in portal.rolesOfPermission('My Permission') if r['selected']]
            self.assertEqual(roles, ['Member', 'Manager'])
        
        Traversal
        ---------
        
        To traverse to a view, page template or other resource, use
        ``restrictedTraverse()`` with a relative path::
        
            resource = portal.restrictedTraverse('f1/@@folder_contents')
        
        The return value is a view object, page template object, or other resource.
        It may be invoked to obtain an actual response (see below).
        
        ``restrictedTraverse()`` performs an explicit security check, and so may
        raise ``Unauthorized`` if the current test user does not have permission to
        view the given resource. If you don't want that, you can use::
        
            resource = portal.unrestrictedTraverse('f1/@@folder_contents')
        
        You can call this on a folder or other content item as well, to traverse from
        that starting point, e.g. this is equivalent to the first example above::
        
            f1 = portal['f1']
            resource = f1.restrictedTraverse('@@folder_contents')
        
        Note that this traversal will not take ``IPublishTraverse`` adapters into
        account, and you cannot pass query string parameters. In fact,
        ``restrictedTraverse()`` and ``unrestrictedTraverse()`` implement the type of
        traversal that happens with path expressions in TAL, which is similar, but not
        identical to URL traversal.
        
        To look up a view manually::
        
            from zope.component import getMultiAdapter
        
            view = getMultiAdapter((f1, request), name=u"folder_contents")
        
        Note that the name here should not include the ``@@`` prefix.
        
        To simulate an ``IPublishTraverse`` adapter call, presuming the view
        implements ``IPublishTraverse``::
        
            next = view.IPublishTraverse(request, u"some-name")
        
        Or, if the ``IPublishTraverse`` adapter is separate from the view::
        
            from zope.publisher.interfaces import IPublishTraverse
        
            publishTraverse = getMultiAdapter((f1, request), IPublishTraverse)
            next = view.IPublishTraverse(request, u"some-name")
        
        To simulate a form submission or query string parameters::
        
            request.form.update({
                    'name': "John Smith",
                    'age':  23
                })
        
        The ``form`` dictionary contains the marshalled request. That is, if you are
        simulating a query string parameter or posted form variable that uses a
        marshaller like ``:int`` (e.g. ``age:int`` in the example above), the value
        in the ``form`` dictionary should be marshalled (an int instead of a string,
        in the example above), and the name should be the base name (``age`` instead
        of ``age:int``).
        
        To invoke a view and obtain the response body as a string::
        
            view = f1.restrictedTraverse('@@folder_contents')
            body = view()
        
            self.assertFalse(u"An unexpected error occurred" in body)
        
        Please note that this approach is not perfect. In particular, the request
        is will not have the right URL or path information. If your view depends on
        this, you can fake it by setting the relevant keys in the request, e.g.::
        
            request.set('URL', f1.absolute_url() + '/@@folder_contents')
            request.set('ACTUAL_URL', f1.absolute_url() + '/@@folder_contents')
        
        To inspect the state of the request (e.g. after a view has been invoked)::
        
            self.assertEqual(request.get('disable_border'), True)
        
        To inspect response headers (e.g. after a view has been invoked)::
        
            response = request.response
        
            self.assertEqual(response.getHeader('content-type'), 'text/plain')
        
        Simulating browser interaction
        ------------------------------
        
        End-to-end functional tests can use `zope.testbrowser`_ to simulate user
        interaction. This acts as a web browser, connecting to Zope via a special
        channel, making requests and obtaining responses.
        
          **Note:** zope.testbrowser runs entirely in Python, and does not simulate
          a JavaScript engine.
        
        Note that to use ``zope.testbrowser``, you need to use one of the functional
        testing layers, e.g. ``PLONE_FUNCTIONAL_TESTING``, or another layer
        instantiated with the ``FunctionalTesting`` class.
        
        If you want to create some initial content, you can do so either in a layer,
        or in the test itself, before invoking the test browser client. In the latter
        case, you need to commit the transaction before it becomes available, e.g.::
        
            from plone.app.testing import setRoles
            from plone.app.testing import TEST_USER_ID
        
            # Make some changes
            setRoles(portal, TEST_USER_ID, ['Manager'])
            portal.invokeFactory('Folder', 'f1', title=u"Folder 1")
            setRoles(portal, TEST_USER_ID, ['Member'])
        
            # Commit so that the test browser sees these changes
            import transaction
            transaction.commit()
        
        To obtain a new test browser client::
        
            from plone.testing.z2 import Browser
        
            browser = Browser(app)
        
        To open a given URL::
        
            portalURL = portal.absolute_url()
            browser.open(portalURL)
        
        To inspect the response::
        
            self.assertTrue(u"Welcome" in browser.contents)
        
        To inspect response headers::
        
            self.assertEqual(browser.headers['content-type'], 'text/html; charset=utf-8')
        
        To follow a link::
        
            browser.getLink('Edit').click()
        
        This gets a link by its text. To get a link by HTML id::
        
            browser.getLink(id='edit-link').click()
        
        To verify the current URL::
        
            self.assertEqual(portalURL + '/edit', browser.url)
        
        To set a form control value::
        
            browser.getControl('Age').value = u"30"
        
        This gets the control by its associated label. To get a control by its form
        variable name::
        
            browser.getControl(name='age:int').value = u"30"
        
        See the `zope.testbrowser`_ documentation for more details on how to select
        and manipulate various types of controls.
        
        To submit a form by clicking a button::
        
            browser.getControl('Save').click()
        
        Again, this uses the label to find the control. To use the form variable
        name::
        
            browser.getControl(name='form.button.Save').click()
        
        To simulate HTTP BASIC authentication and remain logged in for all
        requests::
        
            from plone.app.testing import TEST_USER_NAME, TEST_USER_PASSWORD
        
            browser.addHeader('Authorization', 'Basic %s:%s' % (TEST_USER_NAME, TEST_USER_PASSWORD,))
        
        To simulate logging in via the login form::
        
            browser.open(portalURL + '/login_form')
            browser.getControl(name='__ac_name').value = TEST_USER_NAME
            browser.getControl(name='__ac_password').value = TEST_USER_PASSWORD
            browser.getControl(name='submit').click()
        
        To simulate logging out::
        
            browser.open(portalURL + '/logout')
        
        Debugging tips
        ~~~~~~~~~~~~~~
        
        By default, only HTTP error codes (e.g. 500 Server Side Error) are shown when
        an error occurs on the server. To see more details, set ``handleErrors`` to
        False::
        
            browser.handleErrors = False
        
        To inspect the error log and obtain a full traceback of the latest entry::
        
            from Products.CMFCore.utils import getToolByName
        
            errorLog = getToolByName(portal, 'error_log')
            print errorLog.getLogEntries()[-1]['tb_text']
        
        To save the current response to an HTML file::
        
            open('/tmp/testbrowser.html', 'w').write(browser.contents)
        
        You can now open this file and use tools like Firebug to inspect the structure
        of the page. You should remove the file afterwards.
        
        Comparison with ZopeTestCase/PloneTestCase
        ==========================================
        
        `plone.testing`_ and ``plone.app.testing`` have in part evolved from
        ``ZopeTestCase``, which ships with Zope 2 in the ``Testing`` package, and
        `Products.PloneTestCase`_, which ships with Plone and is used by Plone itself
        as well as numerous add-on products.
        
        If you are familiar with ``ZopeTestCase`` and ``PloneTestCase``, the concepts
        of these package should be familiar to you. However, there are some important
        differences to bear in mind.
        
        * ``plone.testing`` and ``plone.app.testing`` are unburdened by the legacy
          support that ``ZopeTestCase`` and ``PloneTestCase`` have to include. This
          makes them smaller and easier to understand and maintain.
        
        * Conversely, ``plone.testing`` only works with Python 2.6 and Zope 2.12 and
          later. ``plone.app.testing`` only works with Plone 4 and later. If you need
          to write tests that run against older versions of Plone, you'll need to use
          ``PloneTestCase``.
        
        * ``ZopeTestCase``/``PloneTestCase`` were written before layers were available
          as a setup mechanism. ``plone.testing`` is very layer-oriented.
        
        * ``PloneTestCase`` provides a base class, also called ``PloneTestCase``,
          which you must use, as it performs setup and tear-down. ``plone.testing``
          moves shared state to layers and layer resources, and does not impose any
          particular base class for tests. This does sometimes mean a little more
          typing (e.g. ``self.layer['portal']`` vs. ``self.portal``), but it makes
          it much easier to control and re-use test fixtures. It also makes your
          test code simpler and more explicit.
        
        * ``ZopeTestCase`` has an ``installProduct()`` function and a corresponding
          ``installPackage()`` function. `plone.testing`_ has only an
          ``installProduct()``, which can configure any kind of Zope 2 product (i.e.
          packages in the ``Products.*`` namespace, old-style products in a special
          ``Products`` folder, or packages in any namespace that have had their ZCML
          loaded and which include a ``<five:registerPackage />`` directive in their
          configuration). Note that you must pass a full dotted name to this function,
          even for "old-style" products in the ``Products.*`` namespace, e.g.
          ``Products.LinguaPlone`` instead of ``LinguaPlone``.
        
        * On setup, ``PloneTestCase`` will load Zope 2's default ``site.zcml``. This
          in turn will load all ZCML for all packages in the ``Products.*`` namespace.
          ``plone.testing`` does not do this (and you are strongly encouraged from
          doing it yourself), because it is easy to accidentally include packages in
          your fixture that you didn't intend to be there (and which can actually
          change the fixture substantially). You should load your package's ZCML
          explicitly. See the `plone.testing`_ documentation for details.
        
        * When using ``PloneTestCase``, any package that has been loaded onto
          ``sys.path`` and which defines the ``z3c.autoinclude.plugin:plone`` entry
          point will be loaded via `z3c.autoinclude`_'s plugin mechanism. This loading
          is explicitly disabled, for the same reasons that the ``Products.*`` auto-
          loading is. You should load your packages' configuration explicitly.
        
        * ``PloneTestCase`` sets up a basic fixture that has member folder enabled,
          and in which the test user's member folder is available as ``self.folder``.
          The ``plone_workflow`` workflow is also installed as the default.
          ``plone.app.testing`` takes a more minimalist approach. To create a test
          folder owned by the test user that is similar to ``self.folder`` in a
          ``PloneTestCase``, you can do::
        
                import unittest2 as unittest
                from plone.app.testing import TEST_USER_ID, setRoles
                from plone.app.testing import PLONE_INTEGRATION_TESTING
        
                class MyTest(unitest.TestCase):
        
                    layer = PLONE_INTEGRATION_TESTING
        
                    def setUp(self):
                        self.portal = self.layer['portal']
        
                        setRoles(self.portal, TEST_USER_ID, ['Manager'])
                        self.portal.invokeFactory('Folder', 'test-folder')
                        setRoles(self.portal, TEST_USER_ID, ['Member'])
        
                        self.folder = self.portal['test-folder']
        
          You could of course do this type of setup in your own layer and expose it
          as a resource instead.
        
        * To use `zope.testbrowser`_ with ``PloneTestCase``, you should use its
          ``FunctionalTestCase`` as a base class, and then use the following pattern::
        
                from Products.Five.testbrowser import Browser
                browser = Browser()
        
          The equivalent pattern in ``plone.app.testing`` is to use the
          ``FunctionalTesting`` test lifecycle layer (see example above), and then
          use::
        
                from plone.testing.z2 import Browser
                browser = Browser(self.layer['app'])
        
          Also note that if you have made changes to the fixture prior to calling
          ``browser.open()``, they will *not* be visible until you perform an
          explicit commit. See the ``zope.testbrowser`` examples above for details.
        
        .. _plone.testing: http://pypi.python.org/pypi/plone.testing
        .. _zope.testing: http://pypi.python.org/pypi/zope.testing
        .. _z3c.autoinclude: http://pypi.python.org/pypi/z3c.autoinclude
        .. _zope.testbrowser: http://pypi.python.org/pypi/zope.testbrowser
        .. _Products.PloneTestCase: http://pypi.python.org/pypi/Products.PloneTestCase
        
        Changelog
        =========
        
        4.2.2 (2013-02-09)
        ------------------
        
        - Add [robot] extras for requiring dependnecies for Robot Framework
          tests with Selenium2Library
          [datakurre]
        
        - Install PythonScripts as zope product 
          [mikejmets]
        
        
        4.2.1 (2012-12-15)
        ------------------
        
        - Allow testing with non standard port. Allows running multiple test suites 
          in parallel.
          [do3cc]
        
        - Documentation updates.
          [moo]
        
        
        4.2 (2012-04-15)
        ----------------
        
        - Branch as 4.2 as the plone.app.collection addition breaks backwards
          compatibility.
          [esteele]
        
        - Fixed spurious failure in our own tests by using a longer timeout.
          [maurits]
        
        - plone.app.collection added to PloneFixture.
          [timo]
        
        
        4.0.2 (2011-08-31)
        ------------------
        
        - Load ZCML before installing Zope products in ``PloneWithPackageLayer``;
          it enables package registration.
          [gotcha]
        
        
        4.0.1 (2011-07-14)
        ------------------
        
        - Add ``additional_z2_products`` parameter to ``PloneWithPackageLayer``
          helper class to install additional Zope 2 products.
          [jfroche]
        
        
        4.0 - 2011-05-13
        ------------------
        
        - 4.0 Final release.
          [esteele]
        
        - Add MANIFEST.in.
          [WouterVH]
        
        
        4.0a6 - 2011-04-06
        ------------------
        
        - Added helper functions for selenium layer. (Copied from SeleniumTestCase 
          within Products.CMFPlone/Products/CMFPlone/tests/selenium/base.py)
          [emanlove]
        
        - Rework layer setup of SeleniumLayer so that z2.ZSERVER_FIXTURE is a
          default_base.
          [esteele]
        
        - Convert the passed-in selenium webdriver name to lowercase before doing a
          module lookup.
          [esteele]
        
        - Moved selenium start up and tear down to testSetUp and testTearDown,
          respectively.  This was done to help further isolate individual tests.
          For example, logging in under one test would require either logging out
          or shutting down the browser, which is what the selenium_layer will now
          do under testTearDown, in order to have a "clean" state within the next
          test.
          [emanlove]
        
        - Corrected module path for the various selenium webdrivers using
          selenium 2.0b2.
          [emanlove]
        
        
        4.0a5 - 2011-03-02
        ------------------
        
        - Use the new ``plone.testing.security`` module to ensure isolation of
          security checkers when setting up and tearing down layers based on the
          ``PloneSandboxLayer`` helper base class. This would cause problems when
          running multiple test suites in the same test run, in particular if one of
          those suites were setting up ZCML that used ``five.grok``.
          [optilude]
        
        
        4.0a4 - 2011-01-11
        ------------------
        
        - Automatically tear down PAS registrations via snapshotting when using
          ``PloneSandboxLayer``. It's too difficult to do this manually when you
          consider that plugins may be registered in ZCML via transitive dependencies.
          There should be no backwards compatibility concern - using
          ``tearDownMultiPlugin()`` is still supported, and it's generally safe to
          call it once.
          [optilude]
        
        - Try to make sure ``tearDownMultiPlugin()`` and the generic PAS plugin
          cleanup handler do not interfere with the cleanup handler from the PAS
          ZCML directive.
          [optilude]
        
        - Do not install ``Products.kupu`` or ``Products.CMFPlacefulWorkflow``.
          [elro]
        
        - Depend on ``Products.CMFPlone`` instead of ``Plone``.
          [elro]
        
        
        4.0a3 - 2010-12-14
        ------------------
        
        - Allow top-level import of PloneTestLifecycle.
          [stefan]
        
        - Added a warning not to use 'default' Firefox profile for selenium tests.
          [zupo]
        
        - Fixed distribution dependency declarations.
          [hannosch]
        
        - Correct license to GPL version 2 only.
          [hannosch]
        
        - Make some module imports helper methods on the already policy-heavy
          helper class per optilude's suggestion.
          [rossp]
        
        - Add a layer and test case for running selenium tests.
          [rossp]
        
        - Give the default test user differing user id and login name. This helps reveal
          problems with userid vs login name errors, an overly common error.
          [wichert]
        
        
        1.0a2 - 2010-09-05
        ------------------
        
        - Make sure plone.app.imaging is installed properly during layer setup.
          [optilude]
        
        
        1.0a1 - 2010-08-01
        ------------------
        
        - Initial release
        
Platform: UNKNOWN
Classifier: Environment :: Web Environment
Classifier: Framework :: Plone
Classifier: License :: OSI Approved :: GNU General Public License (GPL)
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content
