package client import ( "bytes" "fmt" "io/ioutil" "net/http" "strings" "testing" "golang.org/x/net/context" ) func TestImageTagError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } err := client.ImageTag(context.Background(), "image_id", "repo:tag") if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } // Note: this is not testing all the InvalidReference as it's the responsibility // of distribution/reference package. func TestImageTagInvalidReference(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } err := client.ImageTag(context.Background(), "image_id", "aa/asdf$$^/aa") if err == nil || err.Error() != `Error parsing reference: "aa/asdf$$^/aa" is not a valid repository/tag: invalid reference format` { t.Fatalf("expected ErrReferenceInvalidFormat, got %v", err) } } func TestImageTagInvalidSourceImageName(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } err := client.ImageTag(context.Background(), "invalid_source_image_name_", "repo:tag") if err == nil || err.Error() != "Error parsing reference: \"invalid_source_image_name_\" is not a valid repository/tag: invalid reference format" { t.Fatalf("expected Parsing Reference Error, got %v", err) } } func TestImageTag(t *testing.T) { expectedURL := "/images/image_id/tag" tagCases := []struct { reference string expectedQueryParams map[string]string }{ { reference: "repository:tag1", expectedQueryParams: map[string]string{ "repo": "repository", "tag": "tag1", }, }, { reference: "another_repository:latest", expectedQueryParams: map[string]string{ "repo": "another_repository", "tag": "latest", }, }, { reference: "another_repository", expectedQueryParams: map[string]string{ "repo": "another_repository", "tag": "latest", }, }, { reference: "test/another_repository", expectedQueryParams: map[string]string{ "repo": "test/another_repository", "tag": "latest", }, }, { reference: "test/another_repository:tag1", expectedQueryParams: map[string]string{ "repo": "test/another_repository", "tag": "tag1", }, }, { reference: "test/test/another_repository:tag1", expectedQueryParams: map[string]string{ "repo": "test/test/another_repository", "tag": "tag1", }, }, { reference: "test:5000/test/another_repository:tag1", expectedQueryParams: map[string]string{ "repo": "test:5000/test/another_repository", "tag": "tag1", }, }, { reference: "test:5000/test/another_repository", expectedQueryParams: map[string]string{ "repo": "test:5000/test/another_repository", "tag": "latest", }, }, } for _, tagCase := range tagCases { client := &Client{ client: newMockClient(func(req *http.Request) (*http.Response, error) { if !strings.HasPrefix(req.URL.Path, expectedURL) { return nil, fmt.Errorf("expected URL '%s', got '%s'", expectedURL, req.URL) } if req.Method != "POST" { return nil, fmt.Errorf("expected POST method, got %s", req.Method) } query := req.URL.Query() for key, expected := range tagCase.expectedQueryParams { actual := query.Get(key) if actual != expected { return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual) } } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader([]byte(""))), }, nil }), } err := client.ImageTag(context.Background(), "image_id", tagCase.reference) if err != nil { t.Fatal(err) } } }