Method TestValueFromIncomingContext

metadata/metadata_test.go:236–279

(t *testing.T)

}

func (s) TestValueFromIncomingContext(t *testing.T) {
	md := Pairs(
		"X-My-Header-1", "42",
		"X-My-Header-2", "43-1",
		"X-My-Header-2", "43-2",
		"x-my-header-3", "44",
	)
	ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
	defer cancel()
	// Verify that we lowercase if callers directly modify md
	md["X-INCORRECT-UPPERCASE"] = []string{"foo"}
	ctx = NewIncomingContext(ctx, md)

	for _, test := range []struct {
		key  string
		want []string
	}{
		{
			key:  "x-my-header-1",
			want: []string{"42"},
		},
		{
			key:  "x-my-header-2",
			want: []string{"43-1", "43-2"},
		},
		{
			key:  "x-my-header-3",
			want: []string{"44"},
		},
		{
			key:  "x-unknown",
			want: nil,
		},
		{
			key:  "x-incorrect-uppercase",
			want: []string{"foo"},
		},
	} {
		v := ValueFromIncomingContext(ctx, test.key)
		if !reflect.DeepEqual(v, test.want) {
			t.Errorf("value of metadata is %v, want %v", v, test.want)
		}
	}
}

func (s) TestAppendToOutgoingContext(t *testing.T) {
	// Pre-existing metadata