Infrastructure for callback unit tests

Eventually all of these are going to fill up with test cases.
Right now they merely demarcate boundaries of future testing.

Under ideal circumstances, every new callback review should be accompanied
by a tied review for test coverage.

Signed-off-by: Jiri Podivin <jpodivin@redhat.com>
Change-Id: Ie7b8389d386ff1a2533418a63888f43a899bb31c

validations_common/tests/callback_plugins/test_fail_if_no_hosts.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+test_fail_if_no_hosts
+----------------------------------
+
+Tests for `fail_if_no_hosts` callback plugin.
+
+"""
+
+
+import validations_common.library.reportentry as validation
+from validations_common.tests import base
+
+from unittest import mock
+
+
+class TestFailIfNoHosts(base.TestCase):
+    def setUp(self):
+        super(TestFailIfNoHosts, self).setUp()
+        self.module = mock.MagicMock()

validations_common/tests/callback_plugins/test_validation_json.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+test_validation_json
+----------------------------------
+
+Tests for `validation_json` callback plugin.
+
+"""
+
+
+import validations_common.library.reportentry as validation
+from validations_common.tests import base
+
+from unittest import mock
+
+
+class TestValidationJson(base.TestCase):
+    def setUp(self):
+        super(TestValidationJson, self).setUp()
+        self.module = mock.MagicMock()

validations_common/tests/callback_plugins/test_validation_output.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+test_validation_output
+----------------------------------
+
+Tests for `validation_output` callback plugin.
+
+"""
+
+
+import validations_common.library.reportentry as validation
+from validations_common.tests import base
+
+from unittest import mock
+
+
+class TestValidationOutput(base.TestCase):
+    def setUp(self):
+        super(TestValidationOutput, self).setUp()
+        self.module = mock.MagicMock()

validations_common/tests/callback_plugins/test_validation_stdout.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+test_validation_stdout
+----------------------------------
+
+Tests for `validation_stdout` callback plugin.
+
+"""
+
+
+import validations_common.library.reportentry as validation
+from validations_common.tests import base
+
+from unittest import mock
+
+
+class TestValidationStdout(base.TestCase):
+    def setUp(self):
+        super(TestValidationStdout, self).setUp()
+        self.module = mock.MagicMock()