if err != nil {
		scope.Debugf("bad YAML in isYAMLEqual:\n%s", b)
		return false
	}

	return bytes.Equal(ajb, bjb)
}

// IsYAMLEmpty reports whether the YAML string y is logically empty.
func IsYAMLEmpty(y string) bool {
	var yc []string
	for _, l := range strings.Split(y, "\n") {
		yt := strings.TrimSpace(l)
		if !strings.HasPrefix(yt, "#") && !strings.HasPrefix(yt, "---") {

`,
			expect: false,
		},
		{
			desc:   "yaml-not-empty",
			in:     `foo: bar`,
			expect: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.desc, func(t *testing.T) {
			if got := IsYAMLEmpty(tt.in); got != tt.expect {
				t.Errorf("%v: expect %v got %v", tt.desc, tt.expect, got)
			}
		})
	}

		return newVal, nil
	}
	newS, err := yaml.Marshal(newVal)
	if err != nil {
		return nil, err
	}
	if util.IsYAMLEmpty(string(newS)) {
		return originalVal, nil
	}
	originalS, err := yaml.Marshal(originalVal)
	if err != nil {
		return nil, err
	}
	if util.IsYAMLEmpty(string(originalS)) {
		return newVal, nil
	}

	mergedS, err := util.OverlayYAML(string(originalS), string(newS))