What is wrong with this TestNG test method if we want testB to run only after testA completes successfully?

What is wrong with this TestNG test method if we want testB to run only after testA completes successfully?

@Test
public void testA() { }

@Test(dependsOnMethods = {"testA"})
public void testB() { }

@Test(dependsOnMethods = {"testC"})
public void testC() { }