How to access Spring context in jUnit tests annotated with @RunWith and @ContextConfiguration?
SpringJunitSpring TestApplicationcontextSpring Problem Overview
I have following test class
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"/services-test-config.xml"})
public class MySericeTest {
@Autowired
MyService service;
...
}
Is it possible to access services-test-config.xml
programmatically in one of such methods? Like:
ApplicationContext ctx = somehowGetContext();
Spring Solutions
Solution 1 - Spring
This works fine too:
@Autowired
ApplicationContext context;
Solution 2 - Spring
Since the tests will be instantiated like a Spring bean too, you just need to implement the ApplicationContextAware interface:
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"/services-test-config.xml"})
public class MySericeTest implements ApplicationContextAware
{
@Autowired
MyService service;
...
@Override
public void setApplicationContext(ApplicationContext context)
throws BeansException
{
// Do something with the context here
}
}
For non xml needs, you can also do this:
@RunWith(SpringJUnit4ClassRunner.class)
/* must provide some "root" for the app-context, use unit-test file name to the context is empty */
@ContextConfiguration(classes = MyUnitTestClass.class)
public class MyUnitTestClass implements ApplicationContextAware {
Solution 3 - Spring
If your test class extends the Spring JUnit classes
(e.g., AbstractTransactionalJUnit4SpringContextTests
or any other class that extends AbstractSpringContextTests
), you can access the app context by calling the getContext()
method.
Check out the javadocs for the package org.springframework.test.
Solution 4 - Spring
It's possible to inject instance of ApplicationContext
class by using SpringClassRule
and SpringMethodRule
rules. It might be very handy if you would like to use
another non-Spring runners. Here's an example:
@ContextConfiguration(classes = BeanConfiguration.class)
public static class SpringRuleUsage {
@ClassRule
public static final SpringClassRule springClassRule = new SpringClassRule();
@Rule
public final SpringMethodRule springMethodRule = new SpringMethodRule();
@Autowired
private ApplicationContext context;
@Test
public void shouldInjectContext() {
}
}