1 files changed, 130 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-async.js b/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-async.js
new file mode 100644
index 000000000..d4e7e8576
--- /dev/null
+++ b/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-async.js
@@ -0,0 +1,130 @@
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+var dbg = Debugger(g);
+
+g.eval(`
+async function f() {
+    return e;
+}
+`);
+
+// To continue testing after uncaught exception, remember the exception and
+// return normal completeion.
+var currentFrame;
+var uncaughtException;
+dbg.uncaughtExceptionHook = function(e) {
+    uncaughtException = e;
+    return {
+        return: currentFrame.eval("({ done: true, value: 'uncaught' })").return
+    };
+};
+function testUncaughtException() {
+    uncaughtException = undefined;
+    var val = g.eval(`
+var val;
+f().then(v => { val = v });
+drainJobQueue();
+val;
+`);
+    assertEq(val, "uncaught");
+    assertEq(uncaughtException instanceof TypeError, true);
+}
+
+// Just continue
+dbg.onExceptionUnwind = function(frame) {
+    return undefined;
+};
+g.eval(`
+var E;
+f().catch(e => { exc = e });
+drainJobQueue();
+assertEq(exc instanceof ReferenceError, true);
+`);
+
+// Should return object.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: "foo"
+    };
+};
+testUncaughtException();
+
+// The object should have `done` property and `value` property.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({})").return
+    };
+};
+testUncaughtException();
+
+// The object should have `done` property.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ value: 10 })").return
+    };
+};
+testUncaughtException();
+
+// The object should have `value` property.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ done: true })").return
+    };
+};
+testUncaughtException();
+
+// `done` property should be a boolean value.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ done: 10, value: 10 })").return
+    };
+};
+testUncaughtException();
+
+// `done` property shouldn't be an accessor.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ get done() { return true; }, value: 10 })").return
+    };
+};
+testUncaughtException();
+
+// `value` property shouldn't be an accessor.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ done: true, get value() { return 10; } })").return
+    };
+};
+testUncaughtException();
+
+// The object shouldn't be a Proxy.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("new Proxy({ done: true, value: 10 }, {})").return
+    };
+};
+testUncaughtException();
+
+// Correct resumption value.
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: frame.eval("({ done: true, value: 10 })").return
+    };
+};
+var val = g.eval(`
+var val;
+f().then(v => { val = v });
+drainJobQueue();
+val;
+`);
+assertEq(val, 10);