1 files changed, 24 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_MemoryActor_saveHeapSnapshot_02.js b/devtools/server/tests/xpcshell/test_MemoryActor_saveHeapSnapshot_02.js
new file mode 100644
index 0000000000..91593d845f
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_MemoryActor_saveHeapSnapshot_02.js
@@ -0,0 +1,24 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that we can properly stream heap snapshot files over the RDP as bulk
+// data.
+
+add_task(async () => {
+  const { memoryFront } = await createTabMemoryFront();
+
+  const snapshotFilePath = await memoryFront.saveHeapSnapshot({
+    forceCopy: true,
+  });
+  ok(
+    !!(await IOUtils.stat(snapshotFilePath)),
+    "Should have the heap snapshot file"
+  );
+  const snapshot = ChromeUtils.readHeapSnapshot(snapshotFilePath);
+  ok(
+    HeapSnapshot.isInstance(snapshot),
+    "And we should be able to read a HeapSnapshot instance from the file"
+  );
+});