[python] Renames python generators (#7965)

* python->python-legacy, python-experimental->python

* test with openjdk8

* test with openjdk11

* comment out rm

* move kotlin tests to circleci

* move kotlin tests

* move tests to circleci

* fix circleci

* rearrange test

* move tests

* use wrapper

Co-authored-by: Justin Black <justin.a.black@gmail.com>

samples/openapi3/client/features/dynamic-servers/python/test/test_usage_api.py

@@ -0,0 +1,121 @@
+# coding: utf-8
+
+"""
+    OpenAPI Extension with dynamic servers
+
+    This specification shows how to use dynamic servers.  # noqa: E501
+
+    The version of the OpenAPI document: 1.0.0
+    Generated by: https://openapi-generator.tech
+"""
+
+import functools
+import unittest
+
+import dynamic_servers
+from dynamic_servers.api.usage_api import UsageApi  # noqa: E501
+
+
+class TestUsageApi(unittest.TestCase):
+    """UsageApi unit test stubs"""
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def test_custom_server(self):
+        """Test case for custom_server
+
+        Use custom server  # noqa: E501
+        """
+        # expected value, config
+        servers = (
+            ("https://custom-petstore.swagger.io:8080/v2/custom", {}),
+            (
+                "https://custom-petstore.swagger.io:80/v2/custom",
+                {
+                    "server_index": 0,
+                    "server_variables": {"port": "80"},  # global override
+                },
+            ),
+            (
+                "https://custom-petstore.swagger.io:8080/v2/custom",
+                {
+                    "server_index": 0,
+                    "server_variables": {"port": "80"},
+                    "server_operation_variables": {"custom_server": {"port": "8080"}},  # operation override
+                },
+            ),
+            (
+                "https://third.example.com/global-prefix/custom",
+                {
+                    "server_index": 2,
+                    "server_variables": {"prefix": "global-prefix"},  # global override
+                },
+            ),
+            (
+                "https://third.example.com/local-prefix/custom",
+                {
+                    "server_index": 1,
+                    "server_variables": {"prefix": "global-prefix"},
+                    "server_operation_index": {"custom_server": 2},
+                    "server_operation_variables": {"custom_server": {"prefix": "local-prefix"}},  # operation override
+                },
+            ),
+        )
+
+        def request(expected_url, method, url, **kwargs):
+            assert expected_url == url
+            raise RuntimeError("pass")
+
+        for expected_url, kwargs in servers:
+            client = dynamic_servers.ApiClient(dynamic_servers.Configuration(**kwargs))
+            client.request = functools.partial(request, expected_url)
+            api = UsageApi(client)
+
+            try:
+                api.custom_server()
+            except RuntimeError as e:
+                assert "pass" == str(e)
+
+    def test_default_server(self):
+        """Test case for default_server
+
+        Use default server  # noqa: E501
+        """
+        # expected value, config
+        servers = (
+            ("http://petstore.swagger.io:80/v2/default", {}),
+            (
+                "http://dev-petstore.swagger.io:8080/v2/default",
+                {
+                    "server_index": 0,
+                    "server_variables": {"server": "dev-petstore", "port": "8080"},
+                },
+            ),
+            ("https://localhost:8080/v1/default", {"server_index": 1}),
+            (
+                "https://localhost:8080/v3/default",
+                {"server_index": 1, "server_variables": {"version": "v3"}},
+            ),
+        )
+
+        def request(expected_url, method, url, **kwargs):
+            assert expected_url == url
+            raise RuntimeError("pass")
+
+        for expected_url, kwargs in servers:
+            client = dynamic_servers.ApiClient(dynamic_servers.Configuration(**kwargs))
+            client.request = functools.partial(request, expected_url)
+            api = UsageApi(client)
+
+            try:
+                api.default_server()
+            except RuntimeError as e:
+                assert "pass" == str(e)
+
+
+if __name__ == "__main__":
+    unittest.main()