Currently going through the process of upgrading from Junit4 to Junit5 and running into a bit of a hurdle with something that used to work in Junit4.
Wondering if there is a way to access the #BeforeAll/#AfterAll (formerly #BeforeClass/#AfterClass) within a class which is also a #Suite
Example:
#Suite
#SelectClasses({
SquareService.class,
TriangleService.class
})
public class ShapeTestSuite {
#BeforeAll
public void beforeAll() {
Log.info("Shape Test Suite Start!");
}
#AfterAll
public void afterAll() {
Log.info("Shape Test Suite End!");
}
}
I've tried adding an extension to this class/suite, but that also does not seem to work. What am I missing? Any help would be greatly appreciated.
Thanks
#BeforeAll and #AfterAll runs before any execution of #Test, #TestFactory, etc.
So if you create one them you will see that your code will be run correctly.
#BeforeAll and #AfterAll are annotations from Jupiter, which is one (of many) JUnit 5 engines. #Suite, however, is independent and can run tests and test suites combined from any JUnit 5 engine. That’s why you cannot use a before-all method in a suite class.
Related
I am testing my Quarkus application, and I would like to ignore some of my tests.
The test class is annotated with #io.quarkus.test.junit.QuarkusTest, and each method with #org.junit.jupiter.api.Test
I'm trying to use the #org.junit.Ignore annotation, but it's not working, the ignored tests are executed anyway.
This is the code:
#QuarkusTest
#TestHTTPEndpoint(MyResource::class)
class MyResourceTest {
#Test
#Ignore
fun `to be ignored`() {
assertTrue(false)
}
}
Does anyone know how can I achieve this?
You can use #Disabled annotation
You can also conditionally run tests with assumptions.
I have some own components, which I start before my Java application. It takes about 30 seconds to start this. In my integration tests, I start my components before the class and all test cases run. My question is, is it possible to run my components not before the test class, but rather before the whole test?
kind regards,
bilal
If you use JUnit suites you can use a #BeforeClass to execute a method before the entire suite runs and an #AfterClass after the entire suite runs:
#RunWith(Suite.class)
#SuiteClasses(
{
//list your test classes here
}
)
public class IntegrationSuite{
#BeforeClass
public static void setupSuite(){
//do your initialization here
}
#AfterClass
public static void tearDownSuite(){
//...if needed
}
}
Use the #BeforeClass annotation.
Please note that the annotated method has to be static.
#BeforeClass
public static void oneTimeInit() {
System.out.println("It runs only once for all tests in this class.");
}
If you are using maven you could use the maven-failsafe-plugin. It has a pre-integration-test goal intended for test setup. For an example take a look at Maven Failsafe Plugin: how to use the pre- and post-integration-test phases
I am having a problem, one test class seems to be interfering with the other in my test suite.
I have a suite, which executes two classes, one is called MergeTestSuite.java (which is another Suite), and the other is called RecordTest.java.
RecordTest extends one class already tested by MergeTestSuite.java
I created another suite as follows:
#RunWith(Suite.class)
#Suite.SuiteClasses( {
MergeTestSuite.class,
RecordTest.class
})
public class CoreTestSuite {
#BeforeClass
public static void install() throws Throwable {
RegistryUtils.cleanupResources();
}
}
Both MergeTestSuite.class and RecordTest.class run fine individually. If I run CoreTestSuite, the second test will fail, unless I remove MergeTestSuite.class from the list.
A Junit TestSuite provides extra features for multiple tests. For instance, you can control the order in which the tests run and you can also combine multiple test suites into another suite. I think this older doc from Junit 3.1.8 describes it best.
I'm working on writing unit tests for a class that I'm developing. Another developer is developing other tests for the same class for methods that he's developing. So our tests find themselves in the same JUnit test class.
So what I wanted to do was to set up a test suite to run just my tests while I'm developing as a temporary measure. I created a Category for my tests and have marked them as such. I then created a class to be my test suite. I told it to include tests that belong to this category. When I run it, it still runs everything. There are a lot of tests, so it would be tedious to mark all the tests I don't want ran with #Ignore. Is there a way to say, run only the tests in a category but none else?
You can write a wrapper test class which method calls the main test class (only your method), then run Junit tests on the wrapper class.
public class MainTestClass {
#Test
public void yourFirstTest() {
...
}
#Test
public void yourSecondTest() {
...
}
#Test
public void otherFirstTest() {
...
}
}
public class WrapperTestClass {
#Test
public void yourFirstTest() {
new MainTestClass().yourFirstTest();
}
#Test
public void yourSecondTest() {
new MainTestClass().yourSecondTest();
}
}
I think you can implement your own 'org.junit.runner.RunWith' and then annotate your test class to use it as necessary.
#RunWith(MyRunnerClass.class)
Note: The correct solution here is in the above comments regarding code branches etc.
I wanted to choose the order to execute the JUnit tests.
I have 4 classes with several test methods in it, my goal is to execute, for instance, method Y of class A, then method X from class B, and finally method Z from class A.
Would you help please?
From version 4.11 you can specify execution order using annotations and ordering by method name:
import org.junit.Test;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
#FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class MyTest {
#Test
public void test1Create() {
System.out.println("first");
}
#Test
public void test2Update() {
System.out.println("second");
}
}
See JUnit 4.11 Release Notes
In general, you can't specify the order that separate unit tests run in (though you could specify priorities in TestNG and have a different priority for each test). However, unit tests should be able to be run in isolation, so the order of the tests should not matter. This is a bad practice. If you need the tests to be in a specific order, you should be rethinking your design. If you post specifics as to why you need the order, I'm sure we can offer suggestions.
The JUnit answer to that question is to create one test method like this:
#Test public void testAll() {
classA.y();
classB.x();
classA.z();
}
That is obviously an unsatisfying answer in certain cases (where setup and teardown matter), but the JUnit view of unit testing is that if tests are not independant, you are doing something wrong.
If the above doesn't meet your needs, have a look at TestNG.
Create a TestSuite and call the test methods in the desired order. #Yishai is right in that JUnit is designed so each test is independent. So if you are calling test methods that can be run independently then there should be no problem with creating a TestSuite to cover a scenario for a specific calling-order.
The general remark/idea that testing can be done in any arbitrary order is too strong.
It really depends on what you are testing.
For example I am testing a server where we have a changePassword action.
I think it is obvious that the order of tests is critical. After changePassword, the old password does not work anymore, and before, it does.
I don't want to revert the server state after each test, too much work. I can do it one time after all tests have been completed.
If the previous answer is not satisfying I have noticed with the Sun JVM JUnit always seems to execute unit tests in the order of which they are defined.
Obviously this is not a good idea to rely on this.
This might be interesting to you: JExample
A different approach to testing with interdepentent tests.
You can use #Order() annotation
You can do this like with #Order annotation
#TestMethodOrder(MethodOrderer.OrderAnnotation.class)
public class MyTest {
#Test
#Order(1)
#DisplayName("First")
public void firstTest() {
System.out.println("a");
}
#Test
#Order(2)
#DisplayName("Second")
public void secondTest() {
System.out.println("b");
}
#Test
#Order(3)
#DisplayName("Third")
public void thirdTest() {
System.out.println("c");
}
}
Output
a
b
c