RFR: 8173372 Add tests for multi-release module jar API validator

[Andrey Nazarov]

Thank you
> On 25 Jan 2017, at 22:19, Paul Sandoz <paul.sandoz at oracle.com> wrote:
> 
> 
>> On 25 Jan 2017, at 10:54, Andrey Nazarov <andrey.x.nazarov at oracle.com> wrote:
>> 
>> Hi,
>> 
>> I’ve added tests to check what MR Jar API validator handles changes in module-info.class
>> 
>> Review: http://cr.openjdk.java.net/~anazarov/8173372/webrev.01/webrev/
>> JBS: https://bugs.openjdk.java.net/browse/JDK-8173372
>> 
> 
> Looks ok.
> 
> 
> I think you can reduce some of the boiler plate by having before/after test methods:
> 
> Path root;
> Path classes;
> 
> @BeforeMethod
> void testInit(Method m) {
>  root = Paths.get(method.getName());
>  classes = root.resolve("classes");
> }
> 
> @AfterMethod
> void testCleanup() {
>  FileUtils.deleteFileTreeWithRetry(root);
> }
> 
> 
> I dunno if your test methods really need to declare "throws Throwable”.
> 
> Paul.