Merge pull request #16 from zapier/fix-nil-ref

Handle no runs with no error in comment_actions

Author: davidwin93

pkg/gitlab_hooks/comment_actions.go

@@ -82,11 +82,13 @@ func (w *GitlabEventWorker) processNoteEvent(event vcs.MRCommentEvent) (projectN
 		return proj, nil
 	}
 	executedWorkspaces, tfError := trigger.TriggerTFCEvents()
-	if tfError == nil && len(executedWorkspaces.Errored) > 0 {
-		for _, failedWS := range executedWorkspaces.Errored {
-			w.postMessageToMergeRequest(event, fmt.Sprintf(":no_entry: %s could not be run because: %s", failedWS.Name, failedWS.Error))
+	if tfError == nil && executedWorkspaces != nil {
+		if len(executedWorkspaces.Errored) > 0 {
+			for _, failedWS := range executedWorkspaces.Errored {
+				w.postMessageToMergeRequest(event, fmt.Sprintf(":no_entry: %s could not be run because: %s", failedWS.Name, failedWS.Error))
+			}
+			return proj, nil
 		}
-		return proj, nil
 	}
 	return proj, tfError
 

pkg/gitlab_hooks/comment_actions_test.go

@@ -331,3 +331,59 @@ func TestProcessNoteEventPlanFailedMultipleWorkspaces(t *testing.T) {
 		t.Fatal("expected a project name to be returned")
 	}
 }
+
+func TestProcessNoteEventNoErrorNoRuns(t *testing.T) {
+	os.Setenv(allow_list.GitlabProjectAllowListEnv, "zapier/")
+	defer os.Unsetenv(allow_list.GitlabProjectAllowListEnv)
+	mockCtrl := gomock.NewController(t)
+	defer mockCtrl.Finish()
+	mockGitClient := mocks.NewMockGitClient(mockCtrl)
+
+	mockApiClient := mocks.NewMockApiClient(mockCtrl)
+	mockStreamClient := mocks.NewMockStreamClient(mockCtrl)
+	mockProject := mocks.NewMockProject(mockCtrl)
+	mockProject.EXPECT().GetPathWithNamespace().Return("zapier/service-tf-buddy")
+
+	mockLastCommit := mocks.NewMockCommit(mockCtrl)
+	mockLastCommit.EXPECT().GetSHA().Return("abvc12345")
+
+	mockAttributes := mocks.NewMockMRAttributes(mockCtrl)
+
+	mockAttributes.EXPECT().GetNote().Return("tfc plan -w service-tf-buddy")
+	mockAttributes.EXPECT().GetType().Return("SomeNote")
+
+	mockMREvent := mocks.NewMockMRCommentEvent(mockCtrl)
+	mockMREvent.EXPECT().GetProject().Return(mockProject)
+	mockMREvent.EXPECT().GetAttributes().Return(mockAttributes).Times(2)
+	mockMREvent.EXPECT().GetLastCommit().Return(mockLastCommit)
+
+	mockSimpleMR := mocks.NewMockMR(mockCtrl)
+	mockSimpleMR.EXPECT().GetSourceBranch().Return("DTA-2009")
+
+	mockSimpleMR.EXPECT().GetInternalID().Return(101)
+	mockMREvent.EXPECT().GetMR().Return(mockSimpleMR).Times(2)
+
+	mockTFCTrigger := mocks.NewMockTrigger(mockCtrl)
+	mockTFCConfig := mocks.NewMockTriggerConfig(mockCtrl)
+	mockTFCConfig.EXPECT().SetAction(tfc_trigger.PlanAction)
+	mockTFCConfig.EXPECT().SetWorkspace("service-tf-buddy")
+	mockTFCTrigger.EXPECT().GetConfig().Return(mockTFCConfig).Times(2)
+	mockTFCTrigger.EXPECT().TriggerTFCEvents().Return(nil, nil)
+
+	client := &GitlabEventWorker{
+		gl:        mockGitClient,
+		tfc:       mockApiClient,
+		runstream: mockStreamClient,
+		triggerCreation: func(gl vcs.GitClient, tfc tfc_api.ApiClient, runstream runstream.StreamClient, cfg tfc_trigger.TriggerConfig) tfc_trigger.Trigger {
+			return mockTFCTrigger
+		},
+	}
+
+	proj, err := client.processNoteEvent(mockMREvent)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if proj != "zapier/service-tf-buddy" {
+		t.Fatal("expected a project name to be returned")
+	}
+}