chore: print the url of failed download (#96)

Author: carlossg

pkg/registry/http.go

@@ -80,7 +80,7 @@ func (r SchemaRegistry) DownloadSchema(resourceKind, resourceAPIVersion, k8sVers
 	}
 
 	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("error while downloading schema - received HTTP status %d", resp.StatusCode)
+		return nil, fmt.Errorf("error while downloading schema at %s - received HTTP status %d", url, resp.StatusCode)
 	}
 
 	body, err := ioutil.ReadAll(resp.Body)

pkg/registry/http_test.go

@@ -61,6 +61,22 @@ func TestDownloadSchema(t *testing.T) {
 			nil,
 			fmt.Errorf("no schema found"),
 		},
+		{
+			"getting 503",
+			newMockHTTPGetter(func(url string) (resp *http.Response, err error) {
+				return &http.Response{
+					StatusCode: http.StatusServiceUnavailable,
+					Body:       ioutil.NopCloser(strings.NewReader("http response mock body")),
+				}, nil
+			}),
+			"http://kubernetesjson.dev",
+			true,
+			"Deployment",
+			"v1",
+			"1.18.0",
+			nil,
+			fmt.Errorf("error while downloading schema at http://kubernetesjson.dev - received HTTP status 503"),
+		},
 		{
 			"200",
 			newMockHTTPGetter(func(url string) (resp *http.Response, err error) {