1 files changed, 90 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/debuggerNXHelper.js b/js/src/jit-test/lib/debuggerNXHelper.js
new file mode 100644
index 000000000..61792da84
--- /dev/null
+++ b/js/src/jit-test/lib/debuggerNXHelper.js
@@ -0,0 +1,90 @@
+function testDebuggerHooksNX(dbg, g, testHook) {
+  function testDebuggerHook(hookName, trigger) {
+    var hit = false;
+    dbg[hookName] = () => {
+      hit = true;
+      dbg[hookName] = undefined;
+      testHook(hookName);
+    };
+    trigger();
+    assertEq(hit, true);
+  }
+
+  // Hooks on the Debugger instance itself.
+  testDebuggerHook("onDebuggerStatement",
+                   () => { g.eval("debugger;"); });
+
+  testDebuggerHook("onExceptionUnwind",
+                   () => {
+                     try {
+                       g.eval("throw 42;");
+                     } catch (e) {
+                       assertEq(e, 42);
+                     }
+                   });
+
+  testDebuggerHook("onNewScript",
+                   () => { g.eval("42"); });
+
+  testDebuggerHook("onEnterFrame",
+                   () => { g.eval("(() => {})()"); });
+
+  testDebuggerHook("onNewGlobalObject",
+                   () => { newGlobal(); });
+
+  if ('Promise' in g) {
+      testDebuggerHook("onNewPromise",
+                       () => { new g.Promise(()=>{}); });
+
+      testDebuggerHook("onPromiseSettled",
+                       () => {
+                         var p = new g.Promise(()=>{});
+                         g.settlePromiseNow(p);
+                       });
+  }
+
+  // Hooks on frames.
+  var onStepHit = false;
+  var onPopHit = false;
+  dbg.onEnterFrame = (frame) => {
+    dbg.onEnterFrame = undefined;
+
+    frame.onStep = () => {
+      onStepHit = true;
+      frame.onStep = undefined;
+      testHook("onStep");
+    };
+
+    frame.onPop = () => {
+      onPopHit = true;
+      testHook("onPop");
+    };
+  };
+  g.eval("42");
+  assertEq(onStepHit, true);
+
+  // We can't actually assert that onPop executed because there's one test
+  // that tests NX works across a removeDebuggee/addDebuggee toggle. The
+  // removeDebuggee purges D.F instances, so the onPop won't be called even
+  // when the global is re-added.
+  //assertEq(onPopHit, true);
+
+  // Breakpoints
+  var breakpointHits = 0;
+  dbg.onDebuggerStatement = (frame) => {
+    dbg.onDebuggerStatement = undefined;
+    var line0 = frame.script.getOffsetLocation(frame.offset).lineNumber;
+    var offs = frame.script.getLineOffsets(line0 + 1);
+    for (let i = 0; i < offs.length; i++) {
+      frame.script.setBreakpoint(offs[i], {
+        hit: () => {
+          breakpointHits++;
+          testHook("breakpoint");
+        }
+      });
+    }
+  };
+  g.eval(`debugger;
+         s = 'a'`);
+  assertEq(breakpointHits >= 1, true);
+}