1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-generator.js b/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-generator.js
new file mode 100644
index 0000000000..5824016c6c
--- /dev/null
+++ b/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-generator.js
@@ -0,0 +1,52 @@
+load(libdir + "asserts.js");
+
+var g = newGlobal({newCompartment: true});
+var dbg = Debugger(g);
+
+g.eval(`
+function* f() {
+    e;
+}
+`);
+
+// To continue testing after uncaught exception, remember the exception and
+// return normal completion.
+var currentFrame;
+var uncaughtException;
+dbg.uncaughtExceptionHook = function(e) {
+    uncaughtException = e;
+    return {
+        return: "uncaught"
+    };
+};
+function testUncaughtException() {
+    uncaughtException = undefined;
+    var obj = g.eval(`f().next()`);
+    assertEq(obj.done, true);
+    assertEq(obj.value, 'uncaught');
+    assertEq(uncaughtException instanceof TypeError, true);
+}
+
+// Just continue
+dbg.onExceptionUnwind = function(frame) {
+    return undefined;
+};
+assertThrowsInstanceOf(() => g.eval(`f().next();`), g.ReferenceError);
+
+// Forced early return
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {
+        return: "foo"
+    };
+};
+var obj = g.eval(`f().next()`);
+assertEq(obj.done, true);
+assertEq(obj.value, "foo");
+
+// Bad resumption value
+dbg.onExceptionUnwind = function(frame) {
+    currentFrame = frame;
+    return {declaim: "gadzooks"};
+};
+testUncaughtException();