Make integration-tests run quicker

Attempt to make the integration tests run faster in the following ways:

1. Remove the duplication of restore tests: We test restore of both an
   incremental and a non-incremental backup, which really tests the same
   code path twice. Testing a restore of an incremental backup should be
   sufficient since it's a superset of the non-incremental case. In
   simpler words, there is no case when restore from a full backup will
   fail and restore from an incremental backup will succeed, so it is
   sufficient to test the latter scenario only.

2. Spend less time idly waiting for instances to go ACTIVE. The idea is
   to be able to run other tests during the waiting periods, so that we
   can parallelize tests and reduce the overall time taken to run the
   suite.

Closes-bug: 1394972

Change-Id: Ia9f9c4198f2dcafdacefe46bc48ad20d4714a70e

trove/tests/api/backups.py

@@ -45,7 +45,7 @@ TIMEOUT_BACKUP_DELETE = 120
 backup_info = None
 incremental_info = None
 incremental_db = generate_uuid()
-restore_instance_id = None
+incremental_restore_instance_id = None
 total_num_dbs = 0
 backup_count_prior_to_create = 0
 backup_count_for_instance_prior_to_create = 0
@@ -342,18 +342,15 @@ class RestoreUsingBackup(object):
         assert_equal("BUILD", result.status)
         return result.id
 
-    @test(depends_on=[WaitForBackupCreateToFinish])
-    def test_restore(self):
-        global restore_instance_id
-        restore_instance_id = self._restore(backup_info.id)
-
     @test(depends_on=[IncrementalBackups])
     def test_restore_incremental(self):
         global incremental_restore_instance_id
         incremental_restore_instance_id = self._restore(incremental_info.id)
 
 
-@test(groups=[GROUP, tests.INSTANCES])
+@test(depends_on_classes=[WaitForGuestInstallationToFinish],
+      runs_after_groups=['dbaas.api.configurations.define'],
+      groups=[GROUP, tests.INSTANCES])
 class WaitForRestoreToFinish(object):
 
     @classmethod
@@ -375,16 +372,6 @@ class WaitForRestoreToFinish(object):
         poll_until(result_is_active, time_out=TIMEOUT_INSTANCE_CREATE,
                    sleep_time=10)
 
-    """
-        Wait until the instance is finished restoring from full backup.
-    """
-    @test(depends_on=[RestoreUsingBackup.test_restore])
-    def test_instance_restored(self):
-        try:
-            self._poll(restore_instance_id)
-        except exception.PollTimeOut:
-            fail('Timed out')
-
     """
         Wait until the instance is finished restoring from incremental backup.
     """
@@ -442,13 +429,6 @@ class DeleteRestoreInstance(object):
         assert_raises(exceptions.NotFound, instance_info.dbaas.instances.get,
                       instance_id)
 
-    @test(runs_after=[WaitForRestoreToFinish.test_instance_restored])
-    def test_delete_restored_instance(self):
-        try:
-            self._delete(restore_instance_id)
-        except exception.PollTimeOut:
-            fail('Timed out')
-
     @test(runs_after=[VerifyRestore.test_database_restored_incremental])
     def test_delete_restored_instance_incremental(self):
         try:

trove/tests/api/configurations.py

@@ -27,6 +27,7 @@ from proboscis.asserts import assert_true
 from proboscis.asserts import assert_not_equal
 from proboscis.decorators import time_out
 from trove.common.utils import poll_until
+from trove.tests.api.backups import RestoreUsingBackup
 from trove.tests.api.instances import assert_unprocessable
 from trove.tests.api.instances import InstanceTestInfo
 from trove.tests.api.instances import instance_info
@@ -44,6 +45,7 @@ from troveclient.compat import exceptions
 
 
 GROUP = "dbaas.api.configurations"
+GROUP_CONFIG_DEFINE = "dbaas.api.configurations.define"
 CONFIG_NAME = "test_configuration"
 CONFIG_DESC = "configuration description"
 
@@ -166,7 +168,9 @@ class ConfigurationsTestBase(object):
         return datastore_test_configs.get("configurations", {})
 
 
-@test(depends_on_classes=[WaitForGuestInstallationToFinish], groups=[GROUP])
+@test(depends_on_classes=[WaitForGuestInstallationToFinish],
+      runs_after=[RestoreUsingBackup],
+      groups=[GROUP, GROUP_CONFIG_DEFINE])
 class CreateConfigurations(ConfigurationsTestBase):
 
     @test
@@ -300,7 +304,8 @@ class CreateConfigurations(ConfigurationsTestBase):
         assert_equal(resp.status, 200)
 
 
-@test(runs_after=[CreateConfigurations], groups=[GROUP])
+@test(runs_after=[CreateConfigurations],
+      groups=[GROUP, GROUP_CONFIG_DEFINE])
 class AfterConfigurationsCreation(ConfigurationsTestBase):
 
     @test
@@ -439,7 +444,8 @@ class AfterConfigurationsCreation(ConfigurationsTestBase):
                       configuration_info.id)
 
 
-@test(runs_after=[AfterConfigurationsCreation], groups=[GROUP])
+@test(runs_after=[AfterConfigurationsCreation],
+      groups=[GROUP, GROUP_CONFIG_DEFINE])
 class ListConfigurations(ConfigurationsTestBase):
 
     @test
@@ -556,7 +562,8 @@ class ListConfigurations(ConfigurationsTestBase):
         assert_equal(list_config[0].updated, details_config.updated)
 
 
-@test(runs_after=[ListConfigurations], groups=[GROUP])
+@test(runs_after=[ListConfigurations],
+      groups=[GROUP, GROUP_CONFIG_DEFINE])
 class StartInstanceWithConfiguration(ConfigurationsTestBase):
 
     @test
@@ -590,7 +597,9 @@ class StartInstanceWithConfiguration(ConfigurationsTestBase):
         configuration_instance.id = result.id
 
 
-@test(runs_after=[StartInstanceWithConfiguration], groups=[GROUP])
+@test(depends_on_classes=[StartInstanceWithConfiguration],
+      runs_after_groups=['dbaas.api.backups'],
+      groups=[GROUP])
 class WaitForConfigurationInstanceToFinish(ConfigurationsTestBase):
 
     @test