1 files changed, 56 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_breakpoint-04.js b/devtools/server/tests/xpcshell/test_breakpoint-04.js
new file mode 100644
index 0000000000..8b7137f85d
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_breakpoint-04.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Check that setting a breakpoint in a line in a child script works.
+ */
+
+add_task(
+  threadFrontTest(async ({ threadFront, client, debuggee }) => {
+    const packet = await executeOnNextTickAndWaitForPause(
+      () => evaluateTestCode(debuggee),
+      threadFront
+    );
+    const source = await getSourceById(threadFront, packet.frame.where.actor);
+    const location = { sourceUrl: source.url, line: debuggee.line0 + 3 };
+
+    //Pause at debugger statement.
+    Assert.equal(packet.frame.where.line, debuggee.line0 + 5);
+    Assert.equal(packet.why.type, "debuggerStatement");
+
+    threadFront.setBreakpoint(location, {});
+    await client.waitForRequestsToSettle();
+    await resume(threadFront);
+
+    const packet2 = await waitForPause(threadFront);
+    // Check the return value.
+    Assert.equal(packet2.frame.where.actor, source.actor);
+    Assert.equal(packet2.frame.where.line, location.line);
+    Assert.equal(packet2.why.type, "breakpoint");
+    // Check that the breakpoint worked.
+    Assert.equal(debuggee.a, 1);
+    Assert.equal(debuggee.b, undefined);
+
+    // Remove the breakpoint.
+    threadFront.removeBreakpoint(location);
+    await client.waitForRequestsToSettle();
+
+    await resume(threadFront);
+  })
+);
+
+function evaluateTestCode(debuggee) {
+  // prettier-ignore
+  Cu.evalInSandbox(
+    "var line0 = Error().lineNumber;\n" +
+    "function foo() {\n" + // line0 + 1
+    "  this.a = 1;\n" +    // line0 + 2
+    "  this.b = 2;\n" +    // line0 + 3
+    "}\n" +                // line0 + 4
+    "debugger;\n" +        // line0 + 5
+    "foo();\n",            // line0 + 6
+    debuggee
+  );
+}