1 files changed, 44 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-wasm-sourcemaps.js b/devtools/client/debugger/test/mochitest/browser_dbg-wasm-sourcemaps.js
new file mode 100644
index 0000000000..ed3f18c0cb
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-wasm-sourcemaps.js
@@ -0,0 +1,44 @@
+/* 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/>. */
+requestLongerTimeout(2);
+
+/**
+ * Test WebAssembly source maps
+ */
+add_task(async function() {
+  const dbg = await initDebugger("doc-wasm-sourcemaps.html");
+  await reload(dbg);
+
+  // After reload() we are getting getSources notifiction for old sources,
+  // using the debugger statement to really stop are reloaded page.
+  await waitForPaused(dbg);
+
+  info("resume and wait for fib.c");
+  await resume(dbg);
+  await waitForSources(dbg, "doc-wasm-sourcemaps.html", "fib.c");
+
+  info("Set breakpoint and reload the page.");
+  ok(true, "Original sources exist");
+  await waitForSources(dbg, "fib.c");
+  await selectSource(dbg, "fib.c");
+  await addBreakpoint(dbg, "fib.c", 10);
+
+  info("reload.");
+  reload(dbg);
+
+  // The same debugger statement as above, but using at for
+  // workaround to break at original source (see below) and not generated.
+  await waitForPaused(dbg);
+  await selectSource(dbg, "fib.c");
+
+  info("resume");
+  resume(dbg);
+  await waitForPaused(dbg, "fib.c");
+
+  const frames = findAllElements(dbg, "frames");
+  const firstFrameTitle = frames[0].querySelector(".title").textContent;
+  is(firstFrameTitle, "(wasmcall)", "It shall be a wasm call");
+  const firstFrameLocation = frames[0].querySelector(".location").textContent;
+  is(firstFrameLocation.includes("fib.c"), true, "It shall be fib.c source");
+});