org.argeo.slc.core/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.springframework.context.ApplicationContext;
   6 import org.springframework.context.support.ClassPathXmlApplicationContext;
   7
   8 import org.apache.commons.logging.Log;
   9 import org.apache.commons.logging.LogFactory;
  10
  11 import org.argeo.slc.core.SlcException;
  12 import org.argeo.slc.spring.SpringUtils;
  13
  14 /** Helper for tests using a Spring application co,text. */
  15 public abstract class AbstractSpringTestCase extends TestCase {
  16         protected final Log log = LogFactory.getLog(getClass());
  17         private ApplicationContext context;
  18
  19         /**
  20          * Gets (and create if necessary) the application context to use. Default
  21          * implementation uses a class path xml application context and calls
  22          * {@link #getApplicationContextLocation()}.
  23          */
  24         protected ApplicationContext getContext() {
  25                 if (context == null) {
  26                         context = new ClassPathXmlApplicationContext(
  27                                         getApplicationContextLocation());
  28                 }
  29                 return context;
  30         }
  31
  32         /** Returns a bean from the underlying context */
  33         protected <T> T getBean(String beanId) {
  34                 return (T) getContext().getBean(beanId);
  35         }
  36
  37         protected <T> T getBean(Class<? extends T> clss) {
  38                 T bean = SpringUtils.loadSingleFromContext(getContext(), clss);
  39                 if (bean == null) {
  40                         throw new SlcException("Cannot retrieve a unique bean of type "
  41                                         + clss);
  42                 } else {
  43                         return bean;
  44                 }
  45         }
  46
  47         /**
  48          * Th location of the application to load. The default implementation
  49          * returns <i>applicationContext.xml</i> found in the same package as the
  50          * test.
  51          */
  52         protected String getApplicationContextLocation() {
  53                 return inPackage("applicationContext.xml");
  54         }
  55
  56         /**
  57          * Prefixes the package of the class after converting the '.' to '/' in
  58          * order to have a resource path.
  59          */
  60         protected String inPackage(String suffix) {
  61                 String prefix = getClass().getPackage().getName().replace('.', '/');
  62                 return prefix + '/' + suffix;
  63         }
  64 }