Added system test for Method

tests/test_core/test_system_core.py

@@ -0,0 +1,49 @@
+import unittest
+import sys
+import os
+sys.path.append(os.path.join(os.path.dirname(__file__), "..", ".."))
+
+# module imports
+from malcolm.core.controller import Controller
+from malcolm.core.method import Method
+from malcolm.core.mapmeta import MapMeta
+from malcolm.core.stringmeta import StringMeta
+from malcolm.core.block import Block
+
+
+class HelloController(Controller):
+    def say_hello(self, args):
+        """Says Hello to name
+
+        Args:
+            name (str): The name of the person to say hello to
+
+        Returns:
+            str: The greeting
+        """
+        return dict(greeting="Hello %s" % args["name"])
+
+    def create_methods(self):
+        """Create a Method wrapper for say_hello and return it"""
+        method = Method("say_hello")
+        method.set_function(self.say_hello)
+        takes = MapMeta("takes")
+        takes.add_element(StringMeta("name"))
+        method.set_function_takes(takes)
+        returns = MapMeta("returns")
+        returns.add_element(StringMeta("greeting"))
+        method.set_function_returns(returns)
+        yield method
+
+
+class TestSystemCore(unittest.TestCase):
+    def setUp(self):
+        self.block = Block("Hello")
+        self.controller = HelloController(self.block)
+
+    def test_hello_controller_good_input(self):
+        result = self.block.say_hello(name = "me")
+        self.assertEquals(result["greeting"], "Hello me")
+
+if __name__ == "__main__":
+    unittest.main(verbosity=2)