{
			in:   []string{"=a", "=b", "foo", "bar"},
			want: []string{"=b", "foo", "bar"},
		},
		{
			// #49886: preserve weird Windows keys with leading "=" signs.
			noCase: true,
			in:     []string{`=C:=C:\golang`, `=D:=D:\tmp`, `=D:=D:\`},
			want:   []string{`=C:=C:\golang`, `=D:=D:\`},
		},
		{
			// #52436: preserve invalid key-value entries (for now).
			// (Maybe filter them out or error out on them at some point.)

    def 'sync is not up to date when the preserve filter is changed'() {
        given:
        defaultSourceFileTree()
        file('dest').create {
            preserved { file('some-preserved-file.txt') }
        }

        buildScript '''
            task sync(type: Sync) {
                from 'source'
                into 'dest'
                preserve {
                    include 'preserved'

    class IncrementalCppLib extends IncrementalCppElement {
        final greeter = new CppGreeter()
        final sum = new CppSum()

        final List<IncrementalElement.Transform> incrementalChanges = [preserve(greeter.asLib()), preserve(sum.asLib())]
    }

    class IncrementalCppAppWithDep extends IncrementalCppElement implements AppElement {
        final CppMain main

        IncrementalCppAppWithDep(IncrementalCppLib library) {

		return err
	}

	switch {
	case apiequality.Semantic.DeepEqual(in.Spec.Selector, policy.NonV1beta1MatchNoneSelector):
		// no-op, preserve
	case apiequality.Semantic.DeepEqual(in.Spec.Selector, policy.NonV1beta1MatchAllSelector):
		// no-op, preserve
	default:
		// otherwise, make sure the label intended to be used in a match-all or match-none selector
		// never gets combined with user-specified fields

    private final multiply = new CppMultiply()
    private final main = new CppMain(greeter, sum)

    final List<IncrementalElement.Transform> incrementalChanges = [
        preserve(greeter),
        rename(sum),
        delete(multiply),
        preserve(main)
    ]
    final String expectedOutput = main.expectedOutput
    final String expectedAlternateOutput = main.expectedOutput

        @Override
        public <S> S fromState(Class<S> type, Object state) {
            if (!type.isAssignableFrom(PUBLIC_TYPE)) {
                return null;
            }
            // TODO - should preserve the property type (which may be different to the provider type)
            ProviderInternal<S> provider = Cast.uncheckedNonnullCast(state);
            return type.cast(propertyOf(provider.getType(), provider));
        }

					if m.GetResourceVersion() != "102030" {
						t.Errorf("%v (%v) did not preserve resource version", gv.WithKind(kind), knownType)
						continue
					}
					labels := map[string]string{"a": "b"}
					m.SetLabels(labels)
					if !reflect.DeepEqual(m.GetLabels(), labels) {
						t.Errorf("%v (%v) did not preserve labels", gv.WithKind(kind), knownType)
						continue
					}
				default:

    private final multiply = new SwiftMultiply()
    private final main = new SwiftMain(greeter, sum)

    final List<IncrementalElement.Transform> incrementalChanges = [
        preserve(greeter),
        rename(sum),
        delete(multiply),
        preserve(main)
    ]
    final String expectedOutput = main.expectedOutput
    final String expectedAlternateOutput = main.expectedOutput
    final String moduleName = "App"

  }

  std::vector<string> output_tensor_names;
  output_tensor_names.reserve(fetch_outputs.size());
  for (auto const& output : fetch_outputs) {
    output_tensor_names.push_back(output.name());
  }
  std::vector<string> target_node_names;
  target_node_names.reserve(run_outputs.size());
  for (auto const& output : run_outputs) {
    target_node_names.push_back(output.node()->name());

    private final main = new SwiftMain(greeter, sum)
    private final alternateMain = new SwiftAlternateMain(greeter)

    final List<IncrementalElement.Transform> incrementalChanges = [
        preserve(greeter), preserve(sum), modify(main, alternateMain)]
    final String expectedOutput = main.expectedOutput
    final String expectedAlternateOutput = alternateMain.expectedOutput
    final String moduleName = "App"