add tests for package (un)installation

src/collective/taxonomy/tests/test_setup.py

@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+"""Setup tests for this package."""
+from Products.CMFCore.utils import getToolByName
+
+from collective.taxonomy.testing import INTEGRATION_TESTING
+from plone import api
+from plone.app.testing import TEST_USER_ID
+from plone.app.testing import setRoles
+
+import unittest
+
+no_get_installer = False
+
+try:
+    from Products.CMFPlone.utils import get_installer
+except Exception:
+    # Quick shim for 5.1 api change
+
+    class get_installer(object):
+        def __init__(self, portal, request):
+            self.installer = getToolByName(portal, 'portal_quickinstaller')
+
+        def is_product_installed(self, name):
+            return self.installer.isProductInstalled(name)
+
+        def uninstall_product(self, name):
+            return self.installer.uninstallProducts([name])
+
+
+class TestSetup(unittest.TestCase):
+    """Test that collective.taxonomy is properly installed."""
+
+    layer = INTEGRATION_TESTING
+
+    def setUp(self):
+        """Custom shared utility setup for tests."""
+        self.portal = self.layer['portal']
+        self.installer = get_installer(self.portal, self.layer['request'])
+
+    def test_product_installed(self):
+        """Test if collective.taxonomy is installed."""
+        self.assertTrue(self.installer.is_product_installed(
+            'collective.taxonomy'))
+
+    def test_browserlayer(self):
+        """Test that IBrowserLayer is registered."""
+        from collective.taxonomy.interfaces import IBrowserLayer
+        from plone.browserlayer import utils
+        self.assertIn(
+            IBrowserLayer,
+            utils.registered_layers())
+
+
+class TestUninstall(unittest.TestCase):
+
+    layer = INTEGRATION_TESTING
+
+    def setUp(self):
+        self.portal = self.layer['portal']
+        self.installer = get_installer(self.portal, self.layer['request'])
+        roles_before = api.user.get_roles(TEST_USER_ID)
+        setRoles(self.portal, TEST_USER_ID, ['Manager'])
+        self.installer.uninstall_product('collective.taxonomy')
+        setRoles(self.portal, TEST_USER_ID, roles_before)
+
+    def test_product_uninstalled(self):
+        """Test if collective.taxonomy is cleanly uninstalled."""
+        self.assertFalse(self.installer.is_product_installed(
+            'collective.taxonomy'))
+
+    def test_browserlayer_removed(self):
+        """Test that IBrowserLayer is removed."""
+        from collective.taxonomy.interfaces import IBrowserLayer
+        from plone.browserlayer import utils
+        self.assertNotIn(IBrowserLayer, utils.registered_layers())
+
+    def test_persistent_utility_uninstalled(self):
+        from collective.taxonomy.interfaces import ITaxonomy
+        sm = self.portal.getSiteManager()
+        utilities = sm.getUtilitiesFor(ITaxonomy)
+        self.assertTrue(len(list(utilities)) == 0)