checkMetadata_test: add extra check for invalid keys

datasetIngestor/checkMetadata_test.go

@@ -157,10 +157,11 @@ func TestCheckMetadata_CrashCase(t *testing.T) {
 	_, _, _, err := CheckMetadata(client, APIServer, metadatafile3, user, accessGroups)
 
 	// Check that the function returned the expected error
-	// TODO: maybe later check the list of illegal keys
 	if err == nil {
 		t.Fatal("Function did not return an error as expected")
 	} else if !strings.Contains(err.Error(), ErrIllegalKeys) {
 		t.Errorf("Expected error to contain%q, got %q", ErrIllegalKeys, err.Error())
+	} else if !strings.Contains(err.Error(), "description.") || !strings.Contains(err.Error(), "name]") {
+		t.Errorf("Expected error to list the following illegal keys: \"description.\", \"name]\"")
 	}
 }