Überprüfung bedingter Bean-Registrierung mit ApplicationContextRunner

class CacheAutoConfigurationTest {
 
    private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
        .withUserConfiguration(CacheAutoConfiguration.class);
 
    @Test
    void shouldRegisterInMemoryCacheWhenPropertySet() {
        contextRunner
            .withPropertyValues("app.cache.type=memory")
            .run(context -> {
                assertThat(context).hasSingleBean(InMemoryCache.class);
                assertThat(context).doesNotHaveBean(RedisCache.class);
            });
    }
 
    @Test
    void shouldBackOffWhenDisabled() {
        contextRunner
            .withPropertyValues("app.cache.enabled=false")
            .run(context -> assertThat(context).doesNotHaveBean(CacheManager.class));
    }
}