Recognize config options from [service_available]

Currently, settings in [service_available] for Monasca in tempest.conf
do not have any effect. That can lead to the situation where the
monasca-tempest-plugin is installed but monasca is not configured
which results in all monasca tempest tests failing.
With this patch, setting:

- [service_available]monasca
- [service_available]logs
- [service_available]logs-search

to "False" will skip all available tests for monasca.
If only monasca-api is available (no monasca-log-api and/or
elasticsearch), [service_available]monasca can be set to "True" and
the other 2 options ("logs" and "logs-search") to "False" so only the
monasca-api tempest tests are executed.

Depends-On: https://review.openstack.org/634308
Change-Id: I1f0cbb95765ae5fc6dca0da7af8ab56d2daf9a7f
Story: 2004917
Task: 29277

monasca_tempest_tests/tests/api/base.py

@@ -29,6 +29,8 @@ class BaseMonascaTest(tempest.test.BaseTestCase):
     @classmethod
     def skip_checks(cls):
         super(BaseMonascaTest, cls).skip_checks()
+        if not CONF.service_available.monasca:
+            raise cls.skipException("Monasca support is required")
 
     @classmethod
     def resource_setup(cls):

monasca_tempest_tests/tests/log_api/base.py

@@ -93,11 +93,13 @@ def _get_data(message):
 
 
 class BaseLogsTestCase(test.BaseTestCase):
-    """Base test case class for all Monitoring API tests."""
+    """Base test case class for all Logs tests."""
 
     @classmethod
     def skip_checks(cls):
         super(BaseLogsTestCase, cls).skip_checks()
+        if not CONF.service_available.logs:
+            raise cls.skipException("Monasca logs support is required")
 
     @classmethod
     def resource_setup(cls):
@@ -120,3 +122,13 @@ class BaseLogsTestCase(test.BaseTestCase):
                 method(resource_id)
             except exceptions.EndpointNotFound:
                 pass
+
+
+class BaseLogsSearchTestCase(BaseLogsTestCase):
+    """Base test case class for all LogsSearch tests."""
+    @classmethod
+    def skip_checks(cls):
+        super(BaseLogsSearchTestCase, cls).skip_checks()
+        # logs-search tests need both, 'logs' and 'logs-search'
+        if not CONF.service_available.logs_search:
+            raise cls.skipException("Monasca logs-search support is required")

monasca_tempest_tests/tests/log_api/test_single.py

@@ -22,7 +22,7 @@ _RETRY_COUNT = 15
 _RETRY_WAIT = 2
 
 
-class TestSingleLog(base.BaseLogsTestCase):
+class TestSingleLog(base.BaseLogsSearchTestCase):
     def _run_and_wait(self, key, data,
                       content_type='application/json',
                       headers=None, fields=None):

monasca_tempest_tests/tests/log_api/test_unicode.py

@@ -23,7 +23,7 @@ _RETRY_WAIT = 2
 _UNICODE_CASES = test_metric_validation.UNICODE_MESSAGES
 
 
-class TestUnicodeV3(base.BaseLogsTestCase):
+class TestUnicodeV3(base.BaseLogsSearchTestCase):
 
     def _run_and_wait(self, key, data,
                       content_type='application/json',