Method TestErrorIs

status/status_ext_test.go:65–97

(t *testing.T)

}

func (s) TestErrorIs(t *testing.T) {
	// Test errors.
	testErr := status.Error(codes.Internal, "internal server error")
	testErrWithDetails := errWithDetails(t, status.New(codes.Internal, "internal server error"), &testpb.Empty{})

	// Test cases.
	testCases := []struct {
		err1, err2 error
		want       bool
	}{
		{err1: testErr, err2: nil, want: false},
		{err1: testErr, err2: status.Error(codes.Internal, "internal server error"), want: true},
		{err1: testErr, err2: status.Error(codes.Internal, "internal error"), want: false},
		{err1: testErr, err2: status.Error(codes.Unknown, "internal server error"), want: false},
		{err1: testErr, err2: errors.New("non-grpc error"), want: false},
		{err1: testErrWithDetails, err2: status.Error(codes.Internal, "internal server error"), want: false},
		{err1: testErrWithDetails, err2: errWithDetails(t, status.New(codes.Internal, "internal server error"), &testpb.Empty{}), want: true},
		{err1: testErrWithDetails, err2: errWithDetails(t, status.New(codes.Internal, "internal server error"), &testpb.Empty{}, &testpb.Empty{}), want: false},
	}

	for _, tc := range testCases {
		isError, ok := tc.err1.(interface{ Is(target error) bool })
		if !ok {
			t.Errorf("(%v) does not implement is", tc.err1)
			continue
		}

		is := isError.Is(tc.err2)
		if is != tc.want {
			t.Errorf("(%v).Is(%v) = %t; want %t", tc.err1, tc.err2, is, tc.want)
		}
	}
}

// TestStatusDetails tests how gRPC handles grpc-status-details-bin, especially
// in cases where it doesn't match the grpc-status trailer or contains arbitrary