create basic status updater test

cmd/argo-watcher/argo_status_updater_test.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/shini4i/argo-watcher/cmd/argo-watcher/mock"
+	"github.com/shini4i/argo-watcher/internal/models"
+)
+
+func TestArgoStatusUpdaterCheck(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	t.Run("Status Updater - ArgoCD cannot fetch app information", func(t *testing.T) {
+		// mocks
+		apiMock := mock.NewMockArgoApiInterface(ctrl)
+		metricsMock := mock.NewMockMetricsInterface(ctrl)
+		stateMock := mock.NewMockState(ctrl)
+
+		task := models.Task{
+			Id:  "test-id",
+			App: "test-app",
+		}
+		// mock calls
+		apiMock.EXPECT().GetApplication(task.App).Return(nil, fmt.Errorf("Unexpected failure"))
+		metricsMock.EXPECT().AddFailedDeployment(task.App)
+		stateMock.EXPECT().SetTaskStatus(task.Id, models.StatusFailedMessage, "ArgoCD API Error: Unexpected failure")
+
+		// argo manager
+		argo := &Argo{}
+		argo.Init(stateMock, apiMock, metricsMock)
+
+		// argo updater
+		updater := &ArgoStatusUpdater{}
+		updater.Init(*argo, 1, "test-registry")
+
+		// run the rollout
+		updater.WaitForRollout(task)
+	})
+}