Add unittests for generic bindings and durable functions (#624)

* Add unittests for generic bindings

* Add a case for testing no annotation scenarios

* Fix generic binding without datatype test

Author: Hazhzeng

tests/unittests/durable_functions/activity_trigger/function.json

@@ -0,0 +1,10 @@
+{
+    "scriptFile": "main.py",
+    "bindings": [
+      {
+        "type": "activityTrigger",
+        "name": "input",
+        "direction": "in"
+      }
+    ]
+  }

tests/unittests/durable_functions/activity_trigger/main.py

@@ -0,0 +1,2 @@
+def main(input: str) -> str:
+    return input

tests/unittests/durable_functions/activity_trigger_no_anno/function.json

@@ -0,0 +1,10 @@
+{
+    "scriptFile": "main.py",
+    "bindings": [
+      {
+        "type": "activityTrigger",
+        "name": "input",
+        "direction": "in"
+      }
+    ]
+  }

tests/unittests/durable_functions/activity_trigger_no_anno/main.py

@@ -0,0 +1,2 @@
+def main(input):
+    return input

tests/unittests/durable_functions/orchestration_trigger/function.json

@@ -0,0 +1,10 @@
+{
+    "scriptFile": "main.py",
+    "bindings": [
+      {
+        "type": "orchestrationTrigger",
+        "name": "context",
+        "direction": "in"
+      }
+    ]
+  }

tests/unittests/durable_functions/orchestration_trigger/main.py

@@ -0,0 +1,13 @@
+# import azure.durable_functions as df
+
+
+def generator_function(context):
+    final_result = yield context.call_activity('activity_trigger', 'foobar')
+    return final_result
+
+
+def main(context):
+    # orchestrate = df.Orchestrator.create(generator_function)
+    # result = orchestrate(context)
+    # return result
+    return f'{context} :)'

tests/unittests/generic_functions/foobar_as_bytes_no_anno/function.json

@@ -0,0 +1,17 @@
+{
+  "scriptFile": "main.py",
+  "bindings": [
+    {
+      "type": "foobar",
+      "name": "input",
+      "direction": "in",
+      "dataType": "binary"
+    },
+    {
+      "direction": "out",
+      "name": "$return",
+      "type": "foobar",
+      "dataType": "binary"
+    }
+  ]
+}

tests/unittests/generic_functions/foobar_as_bytes_no_anno/main.py

@@ -0,0 +1,3 @@
+# Input as bytes, without annotation
+def main(input):
+    return input

tests/unittests/generic_functions/foobar_as_str_no_anno/function.json

@@ -0,0 +1,17 @@
+{
+  "scriptFile": "main.py",
+  "bindings": [
+    {
+      "type": "foobar",
+      "name": "input",
+      "direction": "in",
+      "dataType": "string"
+    },
+    {
+      "direction": "out",
+      "name": "$return",
+      "type": "foobar",
+      "dataType": "string"
+    }
+  ]
+}

tests/unittests/generic_functions/foobar_as_str_no_anno/main.py

@@ -0,0 +1,3 @@
+# Input as string, without annotation
+def main(input):
+    return input