}
	if !(andTerm{andTerm{}}).Empty() {
		t.Errorf("Nested andTerm should be empty")
	}
	if (andTerm{&hasTerm{"a", "b"}}).Empty() {
		t.Errorf("Nested andTerm should not be empty")
	}
}

func TestRequiresExactMatch(t *testing.T) {
	testCases := map[string]struct {
		S     Selector
		Label string
		Value string
		Found bool
	}{
		"empty set":                 {Set{}.AsSelector(), "test", "", false},

		t.Run(tt.out, func(t *testing.T) {
			if got := ValidatedSetSelector(tt.set).String(); tt.out != got {
				t.Fatalf("expected %v, got %v", tt.out, got)
			}
		})
	}
}

func TestRequiresExactMatch(t *testing.T) {
	testCases := []struct {
		name          string
		sel           Selector
		label         string
		expectedFound bool
		expectedValue string
	}{
		{