add more unit tests for format_request function

Author: B1nj0y

kernel_gateway/tests/notebook_http/test_request_utils.py

@@ -148,7 +148,17 @@ def test_format_request_without_a_kernel_language_arg(self):
         request_code = format_request(test_request)
         self.assertTrue(request_code.startswith("REQUEST"), "Call format_request without a kernel_language argument was not formatted correctly")
 
-    def test_format_request_with_a_kernel_language_arg(self):
+    def test_format_request_with_a_kernel_language_python(self):
+        test_request = ('''{"body": "", "headers": {}, "args": {}, "path": {}}''')
+        request_code = format_request(test_request, 'python')
+        self.assertTrue(request_code.startswith("REQUEST"), 'Call format_request without a kernel_language "python" was not formatted correctly')
+
+    def test_format_request_with_a_kernel_language_scala(self):
+        test_request = ('''{"body": "", "headers": {}, "args": {}, "path": {}}''')
+        request_code = format_request(test_request, 'scala')
+        self.assertTrue(request_code.startswith("REQUEST"), 'Call format_request without a kernel_language "scala" was not formatted correctly')
+
+    def test_format_request_with_a_kernel_language_perl(self):
         test_request = ('''{"body": "", "headers": {}, "args": {}, "path": {}}''')
         request_code = format_request(test_request, 'perl')
-        self.assertTrue(request_code.startswith("my $REQUEST"), "Call format_request with a kernel language argument was not formatted correctly")
+        self.assertTrue(request_code.startswith("my $REQUEST"), 'Call format_request with a kernel language "perl" was not formatted correctly')