change: move all unittests to tests folder

tests/runner_test.py

@@ -0,0 +1,28 @@
+import unittest
+
+from httprunner.runner import HttpRunner
+
+
+class TestHttpRunner(unittest.TestCase):
+    def setUp(self):
+        self.runner = HttpRunner()
+
+    def test_run_testcase_by_path_request_only(self):
+        self.runner.run_path(
+            "examples/postman_echo/request_methods/request_with_functions.yml"
+        )
+        result = self.runner.get_summary()
+        self.assertTrue(result.success)
+        self.assertEqual(result.name, "request methods testcase with functions")
+        self.assertEqual(result.step_datas[0].name, "get with params")
+        self.assertEqual(len(result.step_datas), 3)
+
+    def test_run_testcase_by_path_ref_testcase(self):
+        self.runner.run_path(
+            "examples/postman_echo/request_methods/request_with_testcase_reference.yml"
+        )
+        result = self.runner.get_summary()
+        self.assertTrue(result.success)
+        self.assertEqual(result.name, "request methods testcase: reference testcase")
+        self.assertEqual(result.step_datas[0].name, "request with functions")
+        self.assertEqual(len(result.step_datas), 1)