add service level tests

pkg/api/list.go

@@ -12,12 +12,12 @@ type ListRequest struct {
 }
 
 type ListResponse struct {
-	Error  string `json:"error,omitempty"`
-	Data   []Releases
+	Error    string `json:"error,omitempty"`
+	Releases []Release
 }
 
-type Releases struct {
-	Release   string `json:"release"`
+type Release struct {
+	Name      string `json:"release"`
 	Namespace string `json:"namespace"`
 }
 

pkg/api/list_api_test.go

@@ -79,7 +79,7 @@ func (s *ListTestSuite) TestShouldReturnReleasesWhenSuccessfulAPICall() {
 
 	assert.Equal(s.T(), 200, resp.StatusCode)
 
-	expectedResponse := `{"Data":[{"release":"test-release","namespace":"test-namespace"}]}`
+	expectedResponse := `{"Releases":[{"release":"test-release","namespace":"test-namespace"}]}`
 	respBody, _ := ioutil.ReadAll(resp.Body)
 	assert.Equal(s.T(), expectedResponse, string(respBody))
 
@@ -96,7 +96,7 @@ func (s *ListTestSuite) TestShouldReturnBadRequestErrorIfItHasInvalidCharacter()
 
 	assert.Equal(s.T(), 400, resp.StatusCode)
 
-	expectedResponse := `{"error":"invalid character '\"' after object key:value pair","Data":null}`
+	expectedResponse := `{"error":"invalid character '\"' after object key:value pair","Releases":null}`
 	respBody, _ := ioutil.ReadAll(resp.Body)
 	assert.Equal(s.T(), expectedResponse, string(respBody))
 	require.NoError(s.T(), err)

pkg/api/service.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"helm.sh/helm/v3/pkg/action"
 
@@ -77,18 +78,28 @@ func (s Service) installChart(icfg InstallConfig, ch *chart.Chart, vals ChartVal
 	return result, nil
 }
 
-func (s Service) List(releaseStatus string) ([]Releases, error) {
+func (s Service) List(releaseStatus string) ([]Release, error) {
 	listStates := new(action.ListStates)
-	s.lister.SetState(listStates.FromName(releaseStatus))
+
+	state := action.ListAll
+	if releaseStatus != "" {
+		state = listStates.FromName(releaseStatus)
+	}
+
+	if state == action.ListUnknown {
+		return nil, errors.New("invalid release status")
+	}
+
+	s.lister.SetState(state)
 	s.lister.SetStateMask()
 	releases, err := s.lister.Run()
 	if err != nil {
 		return nil, err
 	}
 
-	var helmReleases []Releases
+	var helmReleases []Release
 	for _, eachRes := range releases {
-		r := Releases{Release: eachRes.Name, Namespace: eachRes.Namespace}
+		r := Release{Name: eachRes.Name, Namespace: eachRes.Namespace}
 		helmReleases = append(helmReleases, r)
 	}
 

pkg/api/service_test.go

@@ -3,6 +3,7 @@ package api_test
 import (
 	"context"
 	"errors"
+	"helm.sh/helm/v3/pkg/action"
 	"helm.sh/helm/v3/pkg/api"
 	"testing"
 
@@ -55,7 +56,7 @@ func (s *ServiceTestSuite) TestInstallShouldReturnErrorOnInvalidChart() {
 	s.installer.AssertNotCalled(t, "Run")
 }
 
-func (s *ServiceTestSuite) TestInstallShouldReturnErrorOnFailedIntallRun() {
+func (s *ServiceTestSuite) TestInstallShouldReturnErrorOnFailedInstallRun() {
 	chartName := "stable/valid-chart"
 	cfg := api.InstallConfig{
 		Name:      "some-component",
@@ -100,6 +101,77 @@ func (s *ServiceTestSuite) TestInstallShouldReturnResultOnSuccess() {
 	s.installer.AssertExpectations(t)
 }
 
+func (s *ServiceTestSuite) TestListShouldReturnErrorOnFailureOfListRun() {
+	s.lister.On("SetState", action.ListDeployed)
+	s.lister.On("SetStateMask")
+
+	var releases []*release.Release
+
+	s.lister.On("Run").Return(releases, errors.New("cluster issue"))
+
+	releaseStatus := "deployed"
+	res, err := s.svc.List(releaseStatus)
+
+	t := s.T()
+	assert.Error(t, err, "cluster issue")
+	assert.Nil(t, res)
+
+	s.lister.AssertExpectations(t)
+}
+
+func (s *ServiceTestSuite) TestListShouldReturnAllReleasesIfNoFilterIsPassed() {
+	s.lister.On("SetState", action.ListAll)
+	s.lister.On("SetStateMask")
+
+	var releases []*release.Release
+	releases = append(releases,
+		&release.Release{Name: "test-release",
+			Namespace: "test-namespace",
+			Info: &release.Info{Status: release.StatusDeployed}})
+
+	s.lister.On("Run").Return(releases, nil)
+
+	releaseStatus := ""
+	res, err := s.svc.List(releaseStatus)
+
+	t := s.T()
+	assert.NoError(t, err)
+	require.NotNil(t, res)
+
+	var response []api.Release
+	response = append(response, api.Release{"test-release", "test-namespace"})
+
+	assert.Equal(t, len(res), 1)
+	assert.Equal(t, "test-release", response[0].Name)
+	assert.Equal(t, "test-namespace", response[0].Namespace)
+
+	s.lister.AssertExpectations(t)
+}
+
+func (s *ServiceTestSuite) TestListShouldReturnDeployedReleasesIfDeployedIsPassedAsFilter() {
+	s.lister.On("SetState", action.ListDeployed)
+	s.lister.On("SetStateMask")
+
+	var releases []*release.Release
+	s.lister.On("Run").Return(releases, nil)
+
+	releaseStatus := "deployed"
+	_, err := s.svc.List(releaseStatus)
+
+	t := s.T()
+	assert.NoError(t, err)
+
+	s.lister.AssertExpectations(t)
+}
+
+func (s *ServiceTestSuite) TestListShouldReturnErrorIfInvalidStatusIsPassedAsFilter() {
+	releaseStatus := "invalid"
+	_, err := s.svc.List(releaseStatus)
+
+	t := s.T()
+	assert.Error(t, err, "invalid release status")
+}
+
 func TestServiceSuite(t *testing.T) {
 	suite.Run(t, new(ServiceTestSuite))
 }