[jira] [Created] (SSHD-764) Override default jUnit tests runner so as not to create a new instance for each executed test method

["Goldstein Lyor (JIRA)" <ji...@apache.org>]

Goldstein Lyor created SSHD-764:
-----------------------------------

             Summary: Override default jUnit tests runner so as not to create a new instance for each executed test method
                 Key: SSHD-764
                 URL: https://issues.apache.org/jira/browse/SSHD-764
             Project: MINA SSHD
          Issue Type: Improvement
    Affects Versions: 1.7.0
            Reporter: Goldstein Lyor
            Assignee: Goldstein Lyor


The default tests runner (if not specified) is {{BlockJUnit4ClassRunner}} its default behavior is to create a new instance of the test class for *each executed test method*. This can be changed by deriving an {{ExtendedBlockJUnit4ClassRunner}} and overriding its _createTest_ method:
{code:java}
public class ExtendedBlockJUnit4ClassRunner {
    private final AtomicReference<Pair<Class<?>, Object>> testHolder = new AtomicReference<>();

protected Object createTest() throws Exception {
    Pair<Class<?>, Object> lastTest = testHolder.get();
    Class<?> lastTestClass = (lastTest == null) ? null : lastTest.getLeft();
    TestClass curTest = getTestClass():
    Class<?> curTestClass = curTest.getJavaClass():
    if (curTestClass == lastTestClass) {
        return lastTest.getRight();
    }

    Object instance = curTest.getOnlyConstructor().newInstance();
    testHolder.set(Pair.of(curTestClass, instance));
    return instance;
}
{code}



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