1 files changed, 168 insertions, 0 deletions
diff --git a/azure/aria/aria-extension-cloudify/src/aria/tests/orchestrator/workflows/executor/test_process_executor_tracked_changes.py b/azure/aria/aria-extension-cloudify/src/aria/tests/orchestrator/workflows/executor/test_process_executor_tracked_changes.py
new file mode 100644
index 0000000..47ee2f7
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+++ b/azure/aria/aria-extension-cloudify/src/aria/tests/orchestrator/workflows/executor/test_process_executor_tracked_changes.py
@@ -0,0 +1,168 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+import copy
+
+import pytest
+
+from aria.orchestrator.workflows import api
+from aria.orchestrator.workflows.core import engine, graph_compiler
+from aria.orchestrator.workflows.executor import process
+from aria.orchestrator import workflow, operation
+from aria.orchestrator.workflows import exceptions
+
+import tests
+from tests import mock
+from tests import storage
+
+
+_TEST_ATTRIBUTES = {
+    'some': 'values', 'that': 'are', 'most': 'likely', 'only': 'set', 'here': 'yo'
+}
+
+
+def test_track_changes_of_successful_operation(context, executor):
+    _run_workflow(context=context, executor=executor, op_func=_mock_success_operation)
+    _assert_tracked_changes_are_applied(context)
+
+
+def test_track_changes_of_failed_operation(context, executor):
+    with pytest.raises(exceptions.ExecutorException):
+        _run_workflow(context=context, executor=executor, op_func=_mock_fail_operation)
+    _assert_tracked_changes_are_applied(context)
+
+
+def _assert_tracked_changes_are_applied(context):
+    instance = context.model.node.get_by_name(mock.models.DEPENDENCY_NODE_NAME)
+    assert all(instance.attributes[key].value == value
+               for key, value in _TEST_ATTRIBUTES.items())
+
+
+def _update_attributes(context):
+    context.node.attributes.clear()
+    context.node.attributes.update(_TEST_ATTRIBUTES)
+
+
+def test_refresh_state_of_tracked_attributes(context, executor):
+    out = _run_workflow(context=context, executor=executor, op_func=_mock_refreshing_operation)
+    assert out['after_refresh'] == out['after_change']
+    assert out['initial'] != out['after_change']
+
+
+def test_apply_tracked_changes_during_an_operation(context, executor):
+    arguments = {
+        'committed': {'some': 'new', 'properties': 'right here'},
+        'changed_but_refreshed': {'some': 'newer', 'properties': 'right there'}
+    }
+
+    expected_initial = context.model.node.get_by_name(mock.models.DEPENDENCY_NODE_NAME).attributes
+    out = _run_workflow(
+        context=context, executor=executor, op_func=_mock_updating_operation, arguments=arguments)
+
+    expected_after_update = expected_initial.copy()
+    expected_after_update.update(arguments['committed']) # pylint: disable=no-member
+    expected_after_change = expected_after_update.copy()
+    expected_after_change.update(arguments['changed_but_refreshed']) # pylint: disable=no-member
+
+    assert out['initial'] == expected_initial
+    assert out['after_update'] == expected_after_update
+    assert out['after_change'] == expected_after_change
+    assert out['after_refresh'] == expected_after_change
+
+
+def _run_workflow(context, executor, op_func, arguments=None):
+    node = context.model.node.get_by_name(mock.models.DEPENDENCY_NODE_NAME)
+    interface_name = 'test_interface'
+    operation_name = 'operation'
+    wf_arguments = arguments or {}
+    interface = mock.models.create_interface(
+        context.service,
+        interface_name,
+        operation_name,
+        operation_kwargs=dict(function=_operation_mapping(op_func),
+                              arguments=wf_arguments)
+    )
+    node.interfaces[interface.name] = interface
+    context.model.node.update(node)
+
+    @workflow
+    def mock_workflow(ctx, graph):
+        task = api.task.OperationTask(
+            node,
+            interface_name=interface_name,
+            operation_name=operation_name,
+            arguments=wf_arguments)
+        graph.add_tasks(task)
+        return graph
+    graph = mock_workflow(ctx=context)  # pylint: disable=no-value-for-parameter
+    graph_compiler.GraphCompiler(context, executor.__class__).compile(graph)
+    eng = engine.Engine({executor.__class__: executor})
+    eng.execute(context)
+    out = context.model.node.get_by_name(mock.models.DEPENDENCY_NODE_NAME).attributes.get('out')
+    return out.value if out else None
+
+
+@operation
+def _mock_success_operation(ctx):
+    _update_attributes(ctx)
+
+
+@operation
+def _mock_fail_operation(ctx):
+    _update_attributes(ctx)
+    raise RuntimeError
+
+
+@operation
+def _mock_refreshing_operation(ctx):
+    out = {'initial': copy.deepcopy(ctx.node.attributes)}
+    ctx.node.attributes.update({'some': 'new', 'properties': 'right here'})
+    out['after_change'] = copy.deepcopy(ctx.node.attributes)
+    ctx.model.node.refresh(ctx.node)
+    out['after_refresh'] = copy.deepcopy(ctx.node.attributes)
+    ctx.node.attributes['out'] = out
+
+
+@operation
+def _mock_updating_operation(ctx, committed, changed_but_refreshed):
+    out = {'initial': copy.deepcopy(ctx.node.attributes)}
+    ctx.node.attributes.update(committed)
+    ctx.model.node.update(ctx.node)
+    out['after_update'] = copy.deepcopy(ctx.node.attributes)
+    ctx.node.attributes.update(changed_but_refreshed)
+    out['after_change'] = copy.deepcopy(ctx.node.attributes)
+    ctx.model.node.refresh(ctx.node)
+    out['after_refresh'] = copy.deepcopy(ctx.node.attributes)
+    ctx.node.attributes['out'] = out
+
+
+def _operation_mapping(func):
+    return '{name}.{func.__name__}'.format(name=__name__, func=func)
+
+
+@pytest.fixture
+def executor():
+    result = process.ProcessExecutor(python_path=[tests.ROOT_DIR])
+    try:
+        yield result
+    finally:
+        result.close()
+
+
+@pytest.fixture
+def context(tmpdir):
+    result = mock.context.simple(str(tmpdir))
+    yield result
+    storage.release_sqlite_storage(result.model)