1 files changed, 115 insertions, 0 deletions
diff --git a/devtools/server/tests/unit/test_breakpoint-13.js b/devtools/server/tests/unit/test_breakpoint-13.js
new file mode 100644
index 000000000..cdc4c9091
--- /dev/null
+++ b/devtools/server/tests/unit/test_breakpoint-13.js
@@ -0,0 +1,115 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Check that execution doesn't pause twice while stepping, when encountering
+ * either a breakpoint or a debugger statement.
+ */
+
+var gDebuggee;
+var gClient;
+var gThreadClient;
+var gCallback;
+
+function run_test()
+{
+  run_test_with_server(DebuggerServer, function () {
+    run_test_with_server(WorkerDebuggerServer, do_test_finished);
+  });
+  do_test_pending();
+}
+
+function run_test_with_server(aServer, aCallback)
+{
+  gCallback = aCallback;
+  initTestDebuggerServer(aServer);
+  gDebuggee = addTestGlobal("test-stack", aServer);
+  gClient = new DebuggerClient(aServer.connectPipe());
+  gClient.connect().then(function () {
+    attachTestTabAndResume(gClient, "test-stack", function (aResponse, aTabClient, aThreadClient) {
+      gThreadClient = aThreadClient;
+      test_simple_breakpoint();
+    });
+  });
+}
+
+function test_simple_breakpoint()
+{
+  gThreadClient.addOneTimeListener("paused", function (aEvent, aPacket) {
+    let source = gThreadClient.source(aPacket.frame.where.source);
+    let location = { line: gDebuggee.line0 + 2 };
+
+    source.setBreakpoint(location, Task.async(function* (aResponse, bpClient) {
+      const testCallbacks = [
+        function (aPacket) {
+          // Check that the stepping worked.
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 5);
+          do_check_eq(aPacket.why.type, "resumeLimit");
+        },
+        function (aPacket) {
+          // Entered the foo function call frame.
+          do_check_eq(aPacket.frame.where.line, location.line);
+          do_check_neq(aPacket.why.type, "breakpoint");
+          do_check_eq(aPacket.why.type, "resumeLimit");
+        },
+        function (aPacket) {
+          // At the end of the foo function call frame.
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 3);
+          do_check_neq(aPacket.why.type, "breakpoint");
+          do_check_eq(aPacket.why.type, "resumeLimit");
+        },
+        function (aPacket) {
+          // Check that the breakpoint wasn't the reason for this pause, but
+          // that the frame is about to be popped while stepping.
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 3);
+          do_check_neq(aPacket.why.type, "breakpoint");
+          do_check_eq(aPacket.why.type, "resumeLimit");
+          do_check_eq(aPacket.why.frameFinished.return.type, "undefined");
+        },
+        function (aPacket) {
+          // The foo function call frame was just popped from the stack.
+          do_check_eq(gDebuggee.a, 1);
+          do_check_eq(gDebuggee.b, undefined);
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 5);
+          do_check_eq(aPacket.why.type, "resumeLimit");
+          do_check_eq(aPacket.poppedFrames.length, 1);
+        },
+        function (aPacket) {
+          // Check that the debugger statement wasn't the reason for this pause.
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 6);
+          do_check_neq(aPacket.why.type, "debuggerStatement");
+          do_check_eq(aPacket.why.type, "resumeLimit");
+        },
+        function (aPacket) {
+          // Check that the debugger statement wasn't the reason for this pause.
+          do_check_eq(aPacket.frame.where.line, gDebuggee.line0 + 7);
+          do_check_neq(aPacket.why.type, "debuggerStatement");
+          do_check_eq(aPacket.why.type, "resumeLimit");
+        },
+      ];
+
+      for (let callback of testCallbacks) {
+        let waiter = waitForPause(gThreadClient);
+        gThreadClient.stepIn();
+        let packet = yield waiter;
+        callback(packet);
+      }
+
+      // Remove the breakpoint and finish.
+      let waiter = waitForPause(gThreadClient);
+      gThreadClient.stepIn();
+      yield waiter;
+      bpClient.remove(() => gThreadClient.resume(() => gClient.close().then(gCallback)));
+    }));
+  });
+
+  Cu.evalInSandbox("var line0 = Error().lineNumber;\n" +
+                   "function foo() {\n" + // line0 + 1
+                   "  this.a = 1;\n" +    // line0 + 2 <-- Breakpoint is set here.
+                   "}\n" +                // line0 + 3
+                   "debugger;\n" +        // line0 + 4
+                   "foo();\n" +           // line0 + 5
+                   "debugger;\n" +        // line0 + 6
+                   "var b = 2;\n",        // line0 + 7
+                   gDebuggee);
+}