ContextNamespaceHandlerTests.java 文件源码

@Test
public void propertyPlaceholderEnvironmentProperties() throws Exception {
    MockEnvironment env = new MockEnvironment().withProperty("foo", "spam");
    GenericXmlApplicationContext applicationContext = new GenericXmlApplicationContext();
    applicationContext.setEnvironment(env);
    applicationContext.load(new ClassPathResource("contextNamespaceHandlerTests-simple.xml", getClass()));
    applicationContext.refresh();
    Map<String, PlaceholderConfigurerSupport> beans = applicationContext
            .getBeansOfType(PlaceholderConfigurerSupport.class);
    assertFalse("No PropertyPlaceholderConfigurer found", beans.isEmpty());
    assertEquals("spam", applicationContext.getBean("string"));
    assertEquals("none", applicationContext.getBean("fallback"));
}