test(nlc): Add more tests for nlc

Author: maxnussbaum

test/unit/test_natural_language_classifier_v1.rb

@@ -101,6 +101,14 @@ def test_success
     training_data = File.open(Dir.getwd + "/resources/weather_data_train.csv")
     service_response = service.create_classifier(
       training_data: training_data,
+      training_data_filename: "weather_data_train.csv",
+      metadata: { "language" => "en" },
+      metadata_filename: "metadata"
+    )
+    assert_equal(create_response, service_response.body)
+
+    service_response = service.create_classifier(
+      training_data: { "training" => "data" },
       metadata: { "language" => "en" }
     )
     assert_equal(create_response, service_response.body)