private void assertEQ(T t, Object returned) {
if (rtype.isArray()) {
Asserts.assertEQ(t.getClass(), returned.getClass());
int n = Array.getLength(t);
Asserts.assertEQ(n, Array.getLength(returned));
for (int i = 0; i < n; ++i) {
Asserts.assertEQ(Array.get(t, i), Array.get(returned, i));
}
} else {
Asserts.assertEQ(t, returned);
}
}
public void assertCatch(Throwable ex) {
try {
Asserts.assertSame(thrown, ex, "must get the out-of-band exception");
} catch (Throwable t) {
ex.printStackTrace();
}
}
private void runTest() {
Helper.clear();
Object[] args = Helper.randomArgs(argsCount, thrower.type().parameterArray());
Object arg0 = Helper.MISSING_ARG;
Object arg1 = testCase.thrown;
if (argsCount > 0) {
arg0 = args[0];
}
if (argsCount > 1) {
args[1] = arg1;
}
Asserts.assertEQ(nargs, thrower.type().parameterCount());
if (argsCount < nargs) {
Object[] appendArgs = {arg0, arg1};
appendArgs = Arrays.copyOfRange(appendArgs, argsCount, nargs);
thrower = MethodHandles.insertArguments(thrower, argsCount, appendArgs);
}
Asserts.assertEQ(argsCount, thrower.type().parameterCount());
MethodHandle target =
MethodHandles.catchException(
testCase.filter(thrower), testCase.throwableClass, testCase.filter(catcher));
Asserts.assertEQ(thrower.type(), target.type());
Asserts.assertEQ(argsCount, target.type().parameterCount());
Object returned;
try {
returned = target.invokeWithArguments(args);
} catch (Throwable ex) {
testCase.assertCatch(ex);
returned = ex;
}
testCase.assertReturn(returned, arg0, arg1, dropped, args);
}
public void assertReturn(
Object returned, Object arg0, Object arg1, int catchDrops, Object... args) {
int lag = 0;
if (throwMode == ThrowMode.CAUGHT) {
lag = 1;
}
Helper.assertCalled(lag, callName(), arg0, arg1);
if (throwMode == ThrowMode.NOTHING) {
assertEQ(cast.apply(arg0), returned);
} else if (throwMode == ThrowMode.CAUGHT) {
List<Object> catchArgs = new ArrayList<>(Arrays.asList(args));
// catcher receives an initial subsequence of target arguments:
catchArgs.subList(args.length - catchDrops, args.length).clear();
// catcher also receives the exception, prepended:
catchArgs.add(0, thrown);
Helper.assertCalled("catcher", catchArgs);
assertEQ(cast.apply(catchArgs), returned);
}
Asserts.assertEQ(0, fakeIdentityCount);
}