runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/unit/AbstractSpringTestCase.java

   1 package org.argeo.slc.unit;
   2
   3 import junit.framework.TestCase;
   4
   5 import org.apache.commons.logging.Log;
   6 import org.apache.commons.logging.LogFactory;
   7 import org.argeo.slc.core.SlcException;
   8 import org.argeo.slc.spring.SpringUtils;
   9 import org.springframework.context.ConfigurableApplicationContext;
  10 import org.springframework.context.support.ClassPathXmlApplicationContext;
  11
  12 /** Helper for tests using a Spring application co,text. */
  13 public abstract class AbstractSpringTestCase extends TestCase {
  14         protected final Log log = LogFactory.getLog(getClass());
  15         private ConfigurableApplicationContext context;
  16
  17         /**
  18          * Gets (and create if necessary) the application context to use. Default
  19          * implementation uses a class path xml application context and calls
  20          * {@link #getApplicationContextLocation()}.
  21          */
  22         protected ConfigurableApplicationContext getContext() {
  23                 if (context == null) {
  24                         context = new ClassPathXmlApplicationContext(
  25                                         getApplicationContextLocation());
  26                 }
  27                 return context;
  28         }
  29
  30         /** Returns a bean from the underlying context */
  31         protected <T> T getBean(String beanId) {
  32                 return (T) getContext().getBean(beanId);
  33         }
  34
  35         protected <T> T getBean(Class<? extends T> clss) {
  36                 T bean = SpringUtils.loadSingleFromContext(getContext(), clss);
  37                 if (bean == null) {
  38                         throw new SlcException("Cannot retrieve a unique bean of type "
  39                                         + clss);
  40                 } else {
  41                         return bean;
  42                 }
  43         }
  44
  45         /**
  46          * Th location of the application to load. The default implementation
  47          * returns <i>applicationContext.xml</i> found in the same package as the
  48          * test.
  49          */
  50         protected String getApplicationContextLocation() {
  51                 return inPackage("applicationContext.xml");
  52         }
  53
  54         /**
  55          * Prefixes the package of the class after converting the '.' to '/' in
  56          * order to have a resource path.
  57          */
  58         protected String inPackage(String suffix) {
  59                 String prefix = getClass().getPackage().getName().replace('.', '/');
  60                 return prefix + '/' + suffix;
  61         }
  62 }