1 files changed, 54 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-xhr-run-to-completion.js b/devtools/client/debugger/test/mochitest/browser_dbg-xhr-run-to-completion.js
new file mode 100644
index 0000000000..2417f84809
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-xhr-run-to-completion.js
@@ -0,0 +1,54 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// Test that XHR handlers are not called when pausing in the debugger.
+
+"use strict";
+
+add_task(async function () {
+  const dbg = await initDebugger("doc-xhr-run-to-completion.html");
+  invokeInTab("singleRequest", "doc-xhr-run-to-completion.html");
+  await waitForPaused(dbg);
+  await waitForSelectedLocation(dbg, 23);
+  assertPausedAtSourceAndLine(
+    dbg,
+    findSource(dbg, "doc-xhr-run-to-completion.html").id,
+    23
+  );
+
+  const onTestPassed = once(Services.ppmm, "test passed");
+  await resume(dbg);
+  await onTestPassed;
+});
+
+// Test that XHR handlers are not called when pausing in the debugger,
+// including when there are multiple XHRs and multiple times we pause before
+// they can be processed.
+add_task(async function () {
+  const dbg = await initDebugger("doc-xhr-run-to-completion.html");
+  invokeInTab("multipleRequests", "doc-xhr-run-to-completion.html");
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(
+    dbg,
+    findSource(dbg, "doc-xhr-run-to-completion.html").id,
+    31
+  );
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(
+    dbg,
+    findSource(dbg, "doc-xhr-run-to-completion.html").id,
+    33
+  );
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(
+    dbg,
+    findSource(dbg, "doc-xhr-run-to-completion.html").id,
+    34
+  );
+  const onTestPassed = once(Services.ppmm, "test passed");
+  await resume(dbg);
+  await onTestPassed;
+});