1 files changed, 38 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-breakpoints-duplicate-functions.js b/devtools/client/debugger/test/mochitest/browser_dbg-breakpoints-duplicate-functions.js
new file mode 100644
index 0000000000..bb1fa3d64b
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-breakpoints-duplicate-functions.js
@@ -0,0 +1,38 @@
+/* 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 to make sure we do not accidentally slide the breakpoint up to the first
+// function with the same name in the file.
+// TODO: Likely to remove this test when removing the breakpoint sliding functionality
+
+"use strict";
+
+add_task(async function () {
+  const dbg = await initDebugger(
+    "doc-duplicate-functions.html",
+    "doc-duplicate-functions.html"
+  );
+  let source = findSource(dbg, "doc-duplicate-functions.html");
+
+  await selectSource(dbg, source);
+  await addBreakpoint(dbg, source, 21);
+
+  await reload(dbg, "doc-duplicate-functions.html");
+
+  await waitForState(dbg, state => dbg.selectors.getBreakpointCount() == 1);
+
+  const firstBreakpoint = dbg.selectors.getBreakpointsList()[0];
+  is(firstBreakpoint.location.line, 21, "Breakpoint is on line 21");
+
+  // Make sure the breakpoint set on line 19 gets hit
+  await invokeInTab("b");
+  invokeInTab("func");
+  await waitForPaused(dbg);
+
+  source = findSource(dbg, "doc-duplicate-functions.html");
+  assertPausedAtSourceAndLine(dbg, source.id, 21);
+  await assertBreakpoint(dbg, 21);
+
+  await resume(dbg);
+});