1 files changed, 18 insertions, 0 deletions
diff --git a/devtools/server/tests/unit/test_MemoryActor_saveHeapSnapshot_03.js b/devtools/server/tests/unit/test_MemoryActor_saveHeapSnapshot_03.js
new file mode 100644
index 000000000..e9e81594d
--- /dev/null
+++ b/devtools/server/tests/unit/test_MemoryActor_saveHeapSnapshot_03.js
@@ -0,0 +1,18 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that we can save full runtime heap snapshots when attached to the
+// ChromeActor or a ChildProcessActor.
+
+const { OS } = require("resource://gre/modules/osfile.jsm");
+
+const run_test = makeFullRuntimeMemoryActorTest(function* (client, memoryFront) {
+  const snapshotFilePath = yield memoryFront.saveHeapSnapshot();
+  ok(!!(yield OS.File.stat(snapshotFilePath)),
+     "Should have the heap snapshot file");
+  const snapshot = ThreadSafeChromeUtils.readHeapSnapshot(snapshotFilePath);
+  ok(snapshot instanceof HeapSnapshot,
+     "And we should be able to read a HeapSnapshot instance from the file");
+});