Added appropriate tests for the new codegen.

test/codegen/python_http_client_codegen_test.dart

@@ -0,0 +1,135 @@
+import 'package:apidash/codegen/python/pkg_http_client.dart';
+import 'package:apidash/models/models.dart' show KVRow, RequestModel;
+import 'package:test/test.dart';
+import 'package:apidash/consts.dart';
+
+void main() {
+  group('PythonHttpClient', () {
+    final PythonHttpClient pythonHttpClient = PythonHttpClient(); 
+
+    test('getCode returns valid code for GET request', () {
+      const requestModel = RequestModel(
+        url: 'https://jsonplaceholder.typicode.com/todos/1',
+        method: HTTPVerb.get,
+        id: '',
+      );
+      const expectedCode = """import http.client
+import json
+
+conn = http.client.HTTPSConnection('jsonplaceholder.typicode.com')
+payload = json.dumps()
+headers = {
+'Content-Type':'application/json'
+},
+conn.request("GET", "/todos/1", payload, headers)}
+res = conn.getresponse()
+data = res.read()
+print(data.decode("utf-8"))
+""";
+      expect(pythonHttpClient.getCode(requestModel), expectedCode);
+    });
+
+    test('getCode returns valid code for POST request', () {
+      const requestModel = RequestModel(
+        url: 'https://jsonplaceholder.typicode.com/todos',
+        method: HTTPVerb.post,
+        requestBody: '{"title": "foo","body": "bar","userId": 1}',
+        requestBodyContentType: ContentType.json,
+        id: '1',
+      );
+      const expectedCode = """import http.client
+import json
+
+conn = http.client.HTTPSConnection('jsonplaceholder.typicode.com')
+payload = json.dumps({"title": "foo","body": "bar","userId": 1})
+headers = {
+'Content-Type':'application/json'
+},
+conn.request("POST", "/todos", payload, headers)}
+res = conn.getresponse()
+data = res.read()
+print(data.decode("utf-8"))
+""";
+      expect(pythonHttpClient.getCode(requestModel), expectedCode);
+    });
+
+    test('getCode returns valid code for DELETE request', () {
+      const requestModel = RequestModel(
+        url: 'https://jsonplaceholder.typicode.com/todos/1',
+        method: HTTPVerb.delete,
+        requestBody: '{"title": "foo","body": "bar","userId": 1}',
+        requestBodyContentType: ContentType.json,
+        id: '1',
+      );
+      const expectedCode = """import http.client
+import json
+
+conn = http.client.HTTPSConnection('jsonplaceholder.typicode.com')
+payload = json.dumps({"title": "foo","body": "bar","userId": 1})
+headers = {
+'Content-Type':'application/json'
+},
+conn.request("DELETE", "/todos/1", payload, headers)}
+res = conn.getresponse()
+data = res.read()
+print(data.decode("utf-8"))
+""";
+      expect(pythonHttpClient.getCode(requestModel), expectedCode);
+    });
+
+    test('getCode returns valid code for HEAD request', () {
+      const requestModel = RequestModel(
+        url: 'https://jsonplaceholder.typicode.com/todos/1',
+        method: HTTPVerb.head,
+        id: '1',
+      );
+      const expectedCode = """import http.client
+import json
+
+conn = http.client.HTTPSConnection('jsonplaceholder.typicode.com')
+payload = json.dumps()
+headers = {
+'Content-Type':'application/json'
+},
+conn.request("HEAD", "/todos/1", payload, headers)}
+res = conn.getresponse()
+data = res.read()
+print(data.decode("utf-8"))
+""";
+      expect(pythonHttpClient.getCode(requestModel), expectedCode);
+    });
+
+    test(
+        'getCode returns valid code for requests with headers and query parameters',
+        () {
+      const requestModel = RequestModel(
+        url: 'https://jsonplaceholder.typicode.com/posts',
+        method: HTTPVerb.get,
+        requestParams: [
+          KVRow('userId', 1),
+        ],
+        requestHeaders: [
+          KVRow('Custom-Header-1', 'Value-1'),
+          KVRow('Custom-Header-2', 'Value-2')
+        ],
+        id: '1',
+      );
+      const expectedCode = """import http.client
+import json
+
+conn = http.client.HTTPSConnection('jsonplaceholder.typicode.com')
+payload = json.dumps()
+headers = {
+'Content-Type':'application/json'
+'Custom-Header-1':'Value-1',
+'Custom-Header-2':'Value-2',
+},
+conn.request("GET", "/posts?userId=1", payload, headers)}
+res = conn.getresponse()
+data = res.read()
+print(data.decode("utf-8"))
+""";
+      expect(pythonHttpClient.getCode(requestModel), expectedCode);
+    });
+  });
+}