Add SWF endpoint: DescribeWorkflowExecution

tests/test_swf/test_models.py

@@ -3,6 +3,7 @@ from sure import expect
 from moto.swf.models import (
     Domain,
     GenericType,
+    WorkflowType,
     WorkflowExecution,
 )
 
@@ -89,3 +90,44 @@ def test_workflow_execution_generates_a_random_run_id():
     wfe1 = WorkflowExecution("workflow_type_whatever", "ab1234")
     wfe2 = WorkflowExecution("workflow_type_whatever", "ab1235")
     wfe1.run_id.should_not.equal(wfe2.run_id)
+
+def test_workflow_execution_short_dict_representation():
+    wf_type = WorkflowType("test-workflow", "v1.0")
+    wfe = WorkflowExecution(wf_type, "ab1234")
+
+    sd = wfe.to_short_dict()
+    sd["workflowId"].should.equal("ab1234")
+    sd.should.contain("runId")
+
+def test_workflow_execution_medium_dict_representation():
+    wf_type = WorkflowType("test-workflow", "v1.0")
+    wfe = WorkflowExecution(wf_type, "ab1234")
+
+    md = wfe.to_medium_dict()
+    md["execution"].should.equal(wfe.to_short_dict())
+    md["workflowType"].should.equal(wf_type.to_short_dict())
+    md["startTimestamp"].should.be.a('float')
+    md["executionStatus"].should.equal("OPEN")
+    md["cancelRequested"].should.equal(False)
+    md.should_not.contain("tagList")
+
+    wfe.tag_list = ["foo", "bar", "baz"]
+    md = wfe.to_medium_dict()
+    md["tagList"].should.equal(["foo", "bar", "baz"])
+
+def test_workflow_execution_full_dict_representation():
+    wf_type = WorkflowType("test-workflow", "v1.0")
+    wfe = WorkflowExecution(wf_type, "ab1234")
+
+    fd = wfe.to_full_dict()
+    fd["executionInfo"].should.equal(wfe.to_medium_dict())
+    fd["openCounts"]["openTimers"].should.equal(0)
+    fd["openCounts"]["openDecisionTasks"].should.equal(0)
+    fd["openCounts"]["openActivityTasks"].should.equal(0)
+    fd["executionConfiguration"].should.equal({})
+
+    wfe.task_list = "special"
+    wfe.task_start_to_close_timeout = "45"
+    fd = wfe.to_full_dict()
+    fd["executionConfiguration"]["taskList"]["name"].should.equal("special")
+    fd["executionConfiguration"]["taskStartToCloseTimeout"].should.equal("45")

tests/test_swf/test_workflow_executions.py

@@ -6,6 +6,7 @@ from moto import mock_swf
 from moto.swf.exceptions import (
     SWFWorkflowExecutionAlreadyStartedFault,
     SWFTypeDeprecatedFault,
+    SWFUnknownResourceFault,
 )
 
 
@@ -57,3 +58,30 @@ def test_start_workflow_execution_on_deprecated_type():
         "__type": "com.amazonaws.swf.base.model#TypeDeprecatedFault",
         "message": "WorkflowType=[name=test-workflow, version=v1.0]"
     })
+
+
+# DescribeWorkflowExecution endpoint
+@mock_swf
+def test_describe_workflow_execution():
+    conn = setup_swf_environment()
+    hsh = conn.start_workflow_execution("test-domain", "uid-abcd1234", "test-workflow", "v1.0")
+    run_id = hsh["runId"]
+
+    wfe = conn.describe_workflow_execution("test-domain", run_id, "uid-abcd1234")
+    wfe["executionInfo"]["execution"]["workflowId"].should.equal("uid-abcd1234")
+    wfe["executionInfo"]["executionStatus"].should.equal("OPEN")
+
+@mock_swf
+def test_describe_non_existent_workflow_execution():
+    conn = setup_swf_environment()
+
+    with assert_raises(SWFUnknownResourceFault) as err:
+        conn.describe_workflow_execution("test-domain", "wrong-run-id", "wrong-workflow-id")
+
+    ex = err.exception
+    ex.status.should.equal(400)
+    ex.error_code.should.equal("UnknownResourceFault")
+    ex.body.should.equal({
+        "__type": "com.amazonaws.swf.base.model#UnknownResourceFault",
+        "message": "Unknown execution: WorkflowExecution=[workflowId=wrong-workflow-id, runId=wrong-run-id]"
+    })