Function TestMetricsQueryFuncErrors

pkg/ruler/compat_test.go:313–394

(t *testing.T)

}

func TestMetricsQueryFuncErrors(t *testing.T) {
	for name, tc := range map[string]struct {
		returnedError          error
		expectedQueries        int
		expectedFailedQueries  int
		notWrapQueryableErrors bool
	}{
		"no error": {
			expectedQueries:       1,
			expectedFailedQueries: 0,
		},

		"400 error": {
			returnedError:         httpgrpc.Errorf(http.StatusBadRequest, "test error"),
			expectedQueries:       1,
			expectedFailedQueries: 0, // 400 errors not reported as failures.
		},

		"500 error": {
			returnedError:         httpgrpc.Errorf(http.StatusInternalServerError, "test error"),
			expectedQueries:       1,
			expectedFailedQueries: 1, // 500 errors are failures
		},

		"promql.ErrStorage": {
			returnedError:         promql.ErrStorage{Err: errors.New("test error")},
			expectedQueries:       1,
			expectedFailedQueries: 1,
		},

		"promql.ErrQueryCanceled": {
			returnedError:         promql.ErrQueryCanceled("test error"),
			expectedQueries:       1,
			expectedFailedQueries: 0, // Not interesting.
		},

		"promql.ErrQueryTimeout": {
			returnedError:         promql.ErrQueryTimeout("test error"),
			expectedQueries:       1,
			expectedFailedQueries: 0, // Not interesting.
		},

		"promql.ErrTooManySamples": {
			returnedError:         promql.ErrTooManySamples("test error"),
			expectedQueries:       1,
			expectedFailedQueries: 0, // Not interesting.
		},

		"unknown error": {
			returnedError:         errors.New("test error"),
			expectedQueries:       1,
			expectedFailedQueries: 1, // unknown errors are not 400, so they are reported.
		},

		"max query length validation error": {
			returnedError:          validation.LimitError(fmt.Sprintf(validation.ErrQueryTooLong, "10000", "1000")),
			expectedQueries:        1,
			expectedFailedQueries:  0,