17 calls to DrupalTestCase::assertNull()

BootstrapGetFilenameTestCase::testDrupalGetFilename in modules/simpletest/tests/bootstrap.test
Test that drupal_get_filename() works correctly when the file is not found in the database.
BootstrapGetFilenameWebTestCase::testDrupalGetFilename in modules/simpletest/tests/bootstrap.test
Test that drupal_get_filename() works correctly with a full Drupal site.
CronRunTestCase::testCronCacheExpiration in modules/system/system.test
Tests that hook_flush_caches() is not invoked on every single cron run.
DatabaseEmptyStatementTestCase::testEmpty in modules/simpletest/tests/database_test.test
Test that the empty result set behaves as empty.
DatabaseTaggingTestCase::testMetaData in modules/simpletest/tests/database_test.test
Test that we can attach meta data to a query object.
DatabaseUpdateTestCase::testSimpleNullUpdate in modules/simpletest/tests/database_test.test
Confirm updating to NULL.
EntityPropertiesTestCase::testEntityKeys in modules/field/tests/field.test
Tests entity_extract_ids() with an empty entity info.
FieldInfoTestCase::testInstanceDisabledEntityType in modules/field/tests/field.test
Test that instances on disabled entity types are filtered out.
FieldUIManageFieldsTestCase::testDeleteField in modules/field_ui/field_ui.test
Tests that deletion removes fields and instances as expected.
FormsFormCacheTestCase::testCacheFormCustomExpiration in modules/simpletest/tests/form.test
Tests changing form_cache_expiration.
MailTestCase::testCancelMessage in modules/simpletest/tests/mail.test
Test that message sending may be canceled.
SessionTestCase::assertSessionCookie in modules/simpletest/tests/session.test
Assert whether the SimpleTest browser sent a session cookie.
TextSummaryTestCase::testNullSentence in modules/field/modules/text/text.test
Test for the NULL value.
UploadUpgradePathTestCase::testUploadUpgrade in modules/simpletest/tests/upgrade/upgrade.upload.test
Test a successful upgrade.
UserPictureTestCase::testDeletePicture in modules/user/user.test
Tests deletion of user pictures.
UserRoleAdminTestCase::testRoleAdministration in modules/user/user.test
Test adding, renaming and deleting roles.
UserValidationTestCase::testAlteredMailValidation in modules/user/user.test

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