i have encoutered a problem where cobertura report does not cover all test cases, and i could not find a satisfactory answer on internet.
i have a main class:
public class SomeClass {
public Somereturn method1(){
//Something doing here
}
public Somereturn method2(){
//Something doing here
}
public Somereturn method3(){
//Something doing here
}
public Somereturn method4(){
//Something doing here
}
}
when I am preparing test case for first or second method cobertura will identify its coverage :
public testclass {
#Test
Public void test1mehtod1(){
// testing mothod1 for some scenario
}
#Test
Public void test2mehtod1(){
// testing mothod1 again for some other scenario
}
#Test
Public void test1mehtod2(){
// testing mothod2 some other scenario
}
}
this is identified by cobertura lets say 50 % coverage.
but if I choose last or second last method:
public testclass {
#Test
Public void test1mehtod3(){
// testing mothod3 for some scenario
}
#Test
Public void test1mehtod4(){
// testing mothod4 for some other scenario
}
}
It refused to identify coverage and shows only 0 % Coverage.
if I talk about reality, for one controller class I have covered 100% preparing all test cases. but cobertura only shows 22% coverage .
I am working on a sprintboot application.
Related
I have a class with list of tests annotated with #Test. I commented #Test annotation for one of the test however when I am running the suit the commented test is also running. Any idea on what's happening?
Example:
public class TestCasesClass {
#BeforeSuite
public void testSetup() throws Exception
{
super.testSetup();
}
#Test
public void test1() {
//Some test code
}
#Test
public void test12() {
//Some test code
}
//#Test
public void test3() {
//Some test code
}
}
When running the test suit all the test are running, including test3.
I tried #Test(enable-false) then also test running in the suit.
How can I execute a method once before all tests in all classes start?
I have a program that needs a system property to be set before any test start. Is there any way to do that?
Note: #BeforeClass or #Before are used just for the same test class. In my case, I'm looking for a way to execute a method before all test classes start.
To setup precondition to your test cases you can use something like this -
#Before
public void setUp(){
// Set up you preconditions here
// This piece of code will be executed before any of the test case execute
}
if you need to run that method before the start of all test you should use the annotation #BeforeClass or if you need to execute the same method every time you will execute a test method of that class you must use #Before
f.e
#Before
public void executedBeforeEach() {
//this method will execute before every single test
}
#Test
public void EmptyCollection() {
assertTrue(testList.isEmpty());
}
You can make use of a Test Suite.
The test suite
#RunWith(Suite.class)
#Suite.SuiteClasses({ TestClass.class, Test2Class.class, })
public class TestSuite {
#BeforeClass
public static void setup() {
// the setup
}
}
and, the test classes
public class Test2Class {
#Test
public void test2() {
// some test
}
}
public class TestClass {
#Test
public void test() {
// some test
}
}
Or, you can have a base class which handles the setup
public class TestBase {
#BeforeClass
public static void setup() {
// setup
}
}
and, then the test classes can extend the base class
public class TestClass extends TestBase {
#Test
public void test() {
// some test
}
}
public class Test2Class extends TestBase {
#Test
public void test() {
// some test
}
}
However, this will call the setup method in TestBase for all its subclasses everytime each of them executes.
I am using a RunListener to let test fail when they write to System.out, but when I fail() a unittest, the listener is removed. Is there any way to let tests fail without removing the Listener?
For clarification a code example
public class OutputListenerTest {
#Test
public void testPrintIsDicovered() {
JUnitCore runner = new JUnitCore();
// the OutputListener calls fail() when something was written
runner.addListener(new OutputListener());
Result result = runner.run(TestWithOutput.class);
}
public static class TestWithOutput {
#Test
public void testOutput1() {
System.out.println("foo");
}
#Test
public void testOutput2() {
System.out.println("bar");
}
}
}
What I'd expect: 2 failed tests
What is: The first test fails and the Listener is removed.
As requested, here is the OutputListener code http://paste.robbi5.com/4916ca5b
Is it ok to not paste it here, it's pretty long and won't help solving the question?
a little more context
I picked the RunListener, because it works pretty easy with maven, just add
<properties>
<property>
<name>listener</name>
<value>OutputListener</value>
</property>
</properties>
to the maven-surefire-plugin and mvn test shows what tests use System.out in some way.
Add a Runner to add the listener.
public class AddListenerRunner extends BlockJUnit4ClassRunner {
public AddListenerRunner(Class<?> klass) throws InitializationError {
super(klass);
}
#Override public void run(RunNotifier notifier){
notifier.addListener(new OutputListener());
super.run(notifier);
}
}
You can then use that in your tests like this.
#RunWith(AddListenerRunner.class)
public class OutputListenerTest {
#Test
public void testOutput1() {
System.out.println("foo");
}
#Test
public void testOutput2() {
System.out.println("bar");
}
}
I set up JUnit Test from android unit testing support and get "FAIL" result from the following test class.
public class FooTest extends AndroidTestCase {
#Before
public void setUp() throws Exception { super.setUp(); }
#After
public void tearDown() throws Exception { super.tearDown(); }
#Test
public void testCase1() { assertTrue(false); }
}
However, after replacing 'AndroidTestCase' with 'InstrumentationTestCase', I got "SUCCESS" result in spite of containing assertion that obviously returns 'FAIL'.
I would like to get to know the reason why I had got such a result, which are different by super classes and how to use Context in JUnit framework tests.
I have a JUnit test suite in the form:
#RunWith(Suite.class)
#Suite.SuiteClasses( { xx.class, yy.cass })
public class AllTests {
public static Test suite() {
TestSuite suite = new TestSuite(AllTests.class.getName());
//$JUnit-BEGIN$
//$JUnit-END$
return suite;
}
}
This then calls vanilla tests like this:
public class xxx {
#Test
public void test () throws {
...
I have a situation where I'd like to stop the rest of the test suite running if there's an error or fail in the first test. But errors / fails in the others are ok and the suite should complete as many other tests as it can. Basically the first test failing would indicate it isn't safe to run the rest.
Is this possible?
First you need junit RunListener:
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;
import org.junit.runner.notification.RunNotifier;
public class FailureListener extends RunListener {
private RunNotifier runNotifier;
public FailureListener(RunNotifier runNotifier) {
super();
this.runNotifier=runNotifier;
}
#Override
public void testFailure(Failure failure) throws Exception {
super.testFailure(failure);
this.runNotifier.pleaseStop();
}
}
Then prepare a suite:
public class StopOnFailureSuite extends Suite {
public StopOnFailureSuite(Class<?> klass, Class<?>[] suiteClasses) throws InitializationError {
super(klass, suiteClasses);
}
public StopOnFailureSuite(Class<?> klass) throws InitializationError {
super(klass, klass.getAnnotation(SuiteClasses.class).value());
}
#Override
public void run(RunNotifier runNotifier) {
runNotifier.addListener(new FailureListener(runNotifier));
super.run(runNotifier);
}
}
And run your suite:
#RunWith(StopOnFailureSuite.class)
#Suite.SuiteClasses({
FirstTestClass.class,
SecondTestClass.class,
...
})
What's wrong with calling System.exit()?
If it's first test then consider moving its validation to #BeforeClass and throw exception if it fails. Then only #AfterClass method would run in case of this exception.
Of course, that way you lack all the fixture artifacts created in test setup method(s).
Like your answer but using #Before in an integration test, I did something like this:
public class FooTest {
private static boolean bar;
#BeforeClass
public static void setUpBeforeClass() throws Exception {
bar = false;
}
#Before
public void setUp() throws Exception {
assertTrue(bar);
}
#Test
public void test() {
System.out.println("something");
assertTrue(true);
}
#Test
public void test1() {
System.out.println("Something2");
assertTrue(true);
}
}
Regards!
Based on the answer from Hiro2k (thanks!) I've used the following solution. It's a bit of a hack but it works.
The test which can prevent other tests running goes at the top of the #Suite.SuiteClasses list. That test then has the following:
private static boolean shouldStopRestOfSuite = false;
#Test
public void test () throws Throwable {
try {
... run some test code...
}
catch (Throwable e) {
shouldStopRestOfSuite = true;
throw e;
}
}
Note the above does need to catch Throwable (not exception) so it catches assertion errors. It also re-throws the error so it's logged by JUnit for analysis.
Then there's another test method:
#Test
public void testKillIfNeeded () throws Exception {
if (!shouldStopRestOfSuite) {
return;
}
System.out.println ("Test suite killed due to dangerous error / failure");
System.exit(1);
}
The above is run second and will kill the JUnit process.
Using this method the JUnit test won't end on fail / error if there's an issue but the fail / error is logged for analysis by JUnit and no further tests will run.
Not too pretty but it does the job :)
Firstly you should catch an error and check the same before you run the 2nd test.
#Rule
public ErrorCollector collector = new ErrorCollector();
1. Add Error.
collector.addError(new Throwable("first thing went wrong"));
2. Check before the dependent run.
collector.checkThat(getResult(), not(containsString("ERROR!")));
Reference - ErrorCollector
Are you running tests using ant?
You could write a custom test listener. You can set this in ant http://ant.apache.org/manual/Tasks/junit.html ( enableTestListenerEvents).
I find it troubling that this functionality is so tedious to implement in such a mature library. If you're using JUnit 5 / Jupiter you can use an extension called JUnit Pioneer (https://junit-pioneer.org).
With JUnit Pioneer you can simply add a #DisableIfTestFails annotation to your test class to make all tests stop when one fails.