Fixes #265: Replace Powerfulseal and introduce Wolkenwalze SDK for plugin system

kraken/plugins/test_run_python_plugin.py

@@ -0,0 +1,28 @@
+import tempfile
+import unittest
+
+from kraken.plugins import run_python_file
+from kraken.plugins.run_python_plugin import RunPythonFileInput
+
+
+class RunPythonPluginTest(unittest.TestCase):
+    def test_success_execution(self):
+        tmp_file = tempfile.NamedTemporaryFile()
+        tmp_file.write(bytes("print('Hello world!')", 'utf-8'))
+        tmp_file.flush()
+        output_id, output_data = run_python_file(RunPythonFileInput(tmp_file.name))
+        self.assertEqual("success", output_id)
+        self.assertEqual("Hello world!\n", output_data.stdout)
+
+    def test_error_execution(self):
+        tmp_file = tempfile.NamedTemporaryFile()
+        tmp_file.write(bytes("import sys\nprint('Hello world!')\nsys.exit(42)\n", 'utf-8'))
+        tmp_file.flush()
+        output_id, output_data = run_python_file(RunPythonFileInput(tmp_file.name))
+        self.assertEqual("error", output_id)
+        self.assertEqual(42, output_data.exit_code)
+        self.assertEqual("Hello world!\n", output_data.stdout)
+
+
+if __name__ == '__main__':
+    unittest.main()