Rewrite integration test using py.test

test/conftest.py

@@ -0,0 +1,26 @@
+from os.path import join, dirname, abspath
+default_base_dir = join(dirname(abspath(__file__)), 'completion')
+
+import run
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--base-dir", default=default_base_dir,
+        help="Directory in which integration test case files locate.")
+    parser.addoption(
+        "--thirdparty",
+        help="Include integration tests that requires third party modules.")
+
+
+def pytest_generate_tests(metafunc):
+    """
+    :type metafunc: _pytest.python.Metafunc
+    """
+    if 'case' in metafunc.fixturenames:
+        base_dir = metafunc.config.option.base_dir
+        test_files = {}
+        thirdparty = metafunc.config.option.thirdparty
+        metafunc.parametrize(
+            'case',
+            run.collect_dir_tests(base_dir, test_files, thirdparty))