1 files changed, 53 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-editor-select.js b/devtools/client/debugger/test/mochitest/browser_dbg-editor-select.js
new file mode 100644
index 0000000000..40f16b409f
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-editor-select.js
@@ -0,0 +1,53 @@
+/* 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/>. */
+
+// Tests that the editor highlights the correct location when the
+// debugger pauses
+
+"use strict";
+
+requestLongerTimeout(2);
+
+add_task(async function() {
+  // This test runs too slowly on linux debug. I'd like to figure out
+  // which is the slowest part of this and make it run faster, but to
+  // fix a frequent failure allow a longer timeout.
+  const dbg = await initDebugger("doc-scripts.html");
+
+  info("Set the initial breakpoint.");
+  await selectSource(dbg, "simple1.js");
+  await addBreakpoint(dbg, "simple1.js", 4);
+
+  info("Call the function that we set a breakpoint in.");
+  invokeInTab("main");
+  await waitForPaused(dbg);
+  await waitForSelectedSource(dbg, "simple1.js");
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, "simple1.js").id, 4);
+
+  info("Step into another file.");
+  await stepOver(dbg);
+  await stepIn(dbg);
+  await waitForSelectedSource(dbg, "simple2.js");
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, "simple2.js").id, 3);
+
+  info("Step out to the initial file.");
+  await stepOut(dbg);
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, "simple1.js").id, 6);
+  await resume(dbg);
+
+  info("Make sure that the editor scrolls to the paused location.");
+  const longSrc = findSource(dbg, "long.js");
+  await selectSource(dbg, "long.js");
+  await addBreakpoint(dbg, longSrc, 66);
+
+  invokeInTab("testModel");
+  await waitForPaused(dbg);
+  await waitForSelectedSource(dbg, "long.js");
+
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, "long.js").id, 66);
+  ok(
+    isVisibleInEditor(dbg, findElement(dbg, "breakpoint")),
+    "Breakpoint is visible"
+  );
+});