1 files changed, 64 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-go-to-line.js b/devtools/client/debugger/test/mochitest/browser_dbg-go-to-line.js
new file mode 100644
index 0000000000..d151d03a51
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-go-to-line.js
@@ -0,0 +1,64 @@
+/* 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 the "go to line" feature correctly responses to keyboard shortcuts.
+
+"use strict";
+
+add_task(async function () {
+  const dbg = await initDebugger("doc-scripts.html", "long.js");
+  await selectSource(dbg, "long.js");
+  await waitForSelectedSource(dbg, "long.js");
+
+  info("Test opening");
+  pressKey(dbg, "goToLine");
+  assertEnabled(dbg);
+  is(
+    dbg.win.document.activeElement.tagName,
+    "INPUT",
+    "The input area of 'go to line' box is focused"
+  );
+
+  info("Test closing by the same keyboard shortcut");
+  pressKey(dbg, "goToLine");
+  assertDisabled(dbg);
+  is(findElement(dbg, "searchField"), null, "The 'go to line' box is closed");
+
+  info("Test closing by escape");
+  pressKey(dbg, "goToLine");
+  assertEnabled(dbg);
+
+  pressKey(dbg, "Escape");
+  assertDisabled(dbg);
+  is(findElement(dbg, "searchField"), null, "The 'go to line' box is closed");
+
+  info("Test going to the correct line");
+  pressKey(dbg, "goToLine");
+  await waitForGoToLineBoxFocus(dbg);
+  type(dbg, "66");
+  pressKey(dbg, "Enter");
+  await assertLine(dbg, 66);
+});
+
+function assertEnabled(dbg) {
+  is(dbg.selectors.getQuickOpenEnabled(), true, "quickOpen enabled");
+}
+
+function assertDisabled(dbg) {
+  is(dbg.selectors.getQuickOpenEnabled(), false, "quickOpen disabled");
+}
+
+async function waitForGoToLineBoxFocus(dbg) {
+  await waitFor(() => dbg.win.document.activeElement.tagName === "INPUT");
+}
+
+async function assertLine(dbg, lineNumber) {
+  // Wait for the line to be set
+  await waitUntil(() => !!dbg.selectors.getSelectedLocation().line);
+  is(
+    dbg.selectors.getSelectedLocation().line,
+    lineNumber,
+    `goto line is ${lineNumber}`
+  );
+}