Function TestDockerFetcherOpen

core/remotes/docker/fetcher_test.go:545–671

New set of tests to test new error cases

(t *testing.T)

// New set of tests to test new error cases
func TestDockerFetcherOpen(t *testing.T) {
	tests := []struct {
		name                   string
		mockedStatus           int
		mockedErr              error
		want                   io.ReadCloser
		wantErr                bool
		wantServerMessageError bool
		wantPlainError         bool
		retries                int
		lastHost               bool
	}{
		{
			name:         "should return status and error.message if it exists if the registry request fails",
			mockedStatus: http.StatusInternalServerError,
			mockedErr: Errors{Error{
				Code:    ErrorCodeUnknown,
				Message: "Test Error",
			}},
			want:                   nil,
			wantErr:                true,
			wantServerMessageError: true,
			lastHost:               false,
		},
		{
			name:           "should return just status if the registry request fails and does not return a docker error",
			mockedStatus:   http.StatusInternalServerError,
			mockedErr:      errors.New("Non-docker error"),
			want:           nil,
			wantErr:        true,
			wantPlainError: true,
			lastHost:       false,
		}, {
			name:           "should return StatusRequestTimeout after exhausting attempts",
			mockedStatus:   http.StatusRequestTimeout,
			mockedErr:      errors.New(http.StatusText(http.StatusRequestTimeout)),
			want:           nil,
			wantErr:        true,
			wantPlainError: true,
			retries:        maxAttempts - 1,
			lastHost:       true,
		}, {
			name:           "should return StatusTooManyRequests after exhausting attempts",
			mockedStatus:   http.StatusTooManyRequests,
			mockedErr:      errors.New(http.StatusText(http.StatusTooManyRequests)),
			want:           nil,
			wantErr:        true,
			wantPlainError: true,
			retries:        maxAttempts - 1,
			lastHost:       true,
		},
		{
			name:         "should retry once after 500",
			mockedStatus: http.StatusInternalServerError,
			mockedErr: Errors{Error{
				Code:    ErrorCodeUnknown,
				Message: "Test Error",
			}},