In the following code, when I right-click testB and press "Run testB", the following behaviour happens:

• All 4 tests are actually run, in the declared order
  
• The tree in the Run view shows: testB {SomeTest {testB, testB, testB}} where these 3 testB's correspond to testX, testB and testC.
  
  

When I run SomeTest, again all 4 tests are run.

whereas I expect IDEA to detect that it is a JUnit 4 test, not JUnit 3 (despite the fact it inherits TestCase) and process @Ignore annotations accordingly, and of course I expect it to do what I mean by clicking 'run this method'.

I now understand that JUnit 4 and JUnit 3 tests really should not be mixed, but in any case it is definitely a serious bug.

In my code, I inherited Spring's AbstractDependencyInjectionSpringContextTests without thinking that it inherits TestCase, annotated everything with @Test or @Ignore etc. and had a lot of fun trying to figure out why I can't run individual methods and why @Ignore does not work.
Even if I remove the @Test annotations, this bug prevents me from using @Ignore annotations also, simply because I want to use the Spring tests base class.

package ru.jkff.test;

import junit.framework.TestCase;
import org.junit.Test;
public class SomeTest extends TestCase {
    @Test
    public void testA() {
        System.out.println("testA");
    }
    @Test
    @Ignore("X is bad")
    public void testX() {
        System.out.println("testX");
    }
    @Test
    public void testB() {
        System.out.println("testB");
    }
    @Test
    public void testC() {
        System.out.println("testC");
    }
}

Issue was resolved