Unit tests use old style of test setup not new LocalServiceTestHelper described in docs

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What version of the product are you using? On what operating system?
version 16

Please provide any additional information below.

All the unit and integration tests use the old style:

ApiProxy.setEnvironmentForCurrentThread(new TestEnvironment());
        ApiProxy.setDelegate(new ApiProxyLocalImpl(new File(".")) {
        });
        ApiProxyLocalImpl proxy = (ApiProxyLocalImpl) ApiProxy.getDelegate();
        // Local datastore should not save test objects to file
        proxy.setProperty(LocalDatastoreService.NO_STORAGE_PROPERTY, Boolean.TRUE.toString());

to setup app engine services

but the app engine docs now refer to a simpler. cleaner way:

 private final LocalServiceTestHelper helper =
        new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());

    @Before
    public void setUp() {
        helper.setUp();
    }

Original issue reported on code.google.com by peterbar...@gmail.com on 15 Jun 2010 at 8:34