public void testConcurrentResolve() throws Exception {
// we use different settings because Ivy do not support multi thread resolve with the same
// settings yet and this is not what this test is about: the focus of this test is running
// concurrent resolves in separate vms but using the same cache. We don't span the test on
// multiple vms, but using separate settings we should only run into shared cache related
// issues, and not multi thread related issues.
IvySettings settings1 = new IvySettings();
IvySettings settings2 = new IvySettings();
IvySettings settings3 = new IvySettings();
// run 3 concurrent resolves, one taking 100ms to download files, one 20ms and one 5ms
// the first one do 10 resolves, the second one 20 and the third 50
// note that the download time is useful only at the very beginning, then the cached file is
// used
ResolveThread t1 =
asyncResolve(settings1, createSlowResolver(settings1, 100), "org6#mod6.4;3", 10);
ResolveThread t2 =
asyncResolve(settings2, createSlowResolver(settings2, 20), "org6#mod6.4;3", 20);
ResolveThread t3 =
asyncResolve(settings3, createSlowResolver(settings3, 5), "org6#mod6.4;3", 50);
t1.join(100000);
t2.join(20000);
t3.join(20000);
assertEquals(10, t1.getCount());
assertFound("org6#mod6.4;3", t1.getFinalResult());
assertEquals(20, t2.getCount());
assertFound("org6#mod6.4;3", t2.getFinalResult());
assertEquals(50, t3.getCount());
assertFound("org6#mod6.4;3", t3.getFinalResult());
}
private ResolveThread asyncResolve(
IvySettings settings, FileSystemResolver resolver, String module, int loop) {
ResolveThread thread = new ResolveThread(settings, resolver, module, loop);
thread.start();
return thread;
}