All junit tests fail with a NullPointerException when a bean uses a FacesContext or creates an object of a class that uses a FacesContext. Please suggest a way to test your code with junit.
Bean
@ManagedBean(name = "displayIssuesBean") @SessionScoped public class DisplayIssuesBean implements Serializable { private static final long serialVersionUID = -3017739535520843880L; private static final Logger LOGGER = Logger.getLogger(AddIssueBean.class); private transient AddIssueDTO addNewIssueDTO = new AddIssueDTO(); private transient IDisplayIssues displayIssuesService = new DisplayIssuesService(); private transient List<String> projectNames = displayIssuesService .getProjectNames(getEmailId()); private transient List<IssueDisplayDTO> issues = new ArrayList<IssueDisplayDTO>(); private transient List<IssueDisplayDTO> modifiedList = new ArrayList<IssueDisplayDTO>(); private String projectName; private int projectId; int firstId; int secondId; private transient IssueDisplayDTO backup1; private transient IssueDisplayDTO backup2; public String getEmailId() { String emailid = FacesContext.getCurrentInstance().getExternalContext() .getRemoteUser(); LOGGER.info(emailid); return emailid; } public String setIssueTypeWithIssueTypeId(int issueTypeId) { String issueType = null; if (issueTypeId == 1) { issueType = "Bug"; } else if (issueTypeId == 2) { issueType = "Story"; } else if (issueTypeId == 3) { issueType = "Task"; } return issueType; }
Test
@Test public void testIssueTypeWithIssueTypeId() { DisplayIssuesBean bean = new DisplayIssuesBean(); assertEquals("Bug", bean.setIssueTypeWithIssueTypeId(1)); }
ERROR
java.lang.NullPointerException at com.jts1.controller.DisplayIssuesBean.getEmailId(DisplayIssuesBean.java:104) at com.jts1.controller.DisplayIssuesBean.<init>(DisplayIssuesBean.java:28) at com.jts1.test.DisplayIssuesTest.testIssueTypeWithIssueTypeId(DisplayIssuesTest.java:13) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
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