Bug 1024774 - Part 10: Add an xpcshell test for reading heap snapshots. r=jimb

toolkit/devtools/server/tests/unit/test_ReadHeapSnapshot.js

@@ -0,0 +1,22 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that we can read core dumps into HeapSnapshot instances.
+
+const { addDebuggerToGlobal } = Cu.import("resource://gre/modules/jsdebugger.jsm", {});
+var Debugger;
+addDebuggerToGlobal(this);
+
+function run_test() {
+  const filePath = getFilePath("core-dump.tmp", true, true);
+  ok(filePath, "Should get a file path");
+
+  ChromeUtils.saveHeapSnapshot(filePath, { globals: [this] });
+  ok(true, "Should be able to save a snapshot.");
+
+  const snapshot = ChromeUtils.readHeapSnapshot(filePath);
+  ok(snapshot, "Should be able to read a heap snapshot");
+  ok(snapshot instanceof HeapSnapshot, "Should be an instanceof HeapSnapshot");
+
+  do_test_finished();
+}

toolkit/devtools/server/tests/unit/xpcshell.ini

@@ -41,6 +41,7 @@ support-files =
 [test_getyoungestframe.js]
 [test_nsjsinspector.js]
 [test_SaveHeapSnapshot.js]
+[test_ReadHeapSnapshot.js]
 [test_dbgactor.js]
 [test_dbgglobal.js]
 [test_dbgclient_debuggerstatement.js]