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-rw-r--r--startupcache/test/TestStartupCache.cpp188
-rw-r--r--startupcache/test/browser/browser.toml3
-rw-r--r--startupcache/test/browser/browser_startupcache_telemetry.js50
-rw-r--r--startupcache/test/moz.build10
4 files changed, 251 insertions, 0 deletions
diff --git a/startupcache/test/TestStartupCache.cpp b/startupcache/test/TestStartupCache.cpp
new file mode 100644
index 0000000000..9c817ff725
--- /dev/null
+++ b/startupcache/test/TestStartupCache.cpp
@@ -0,0 +1,188 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* 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/. */
+
+#include "gtest/gtest.h"
+
+#include "mozilla/scache/StartupCache.h"
+#include "mozilla/scache/StartupCacheUtils.h"
+
+#include "nsDirectoryServiceDefs.h"
+#include "nsIOutputStream.h"
+#include "nsISupports.h"
+#include "nsIStorageStream.h"
+#include "nsIObjectInputStream.h"
+#include "nsIObjectOutputStream.h"
+#include "nsIURI.h"
+#include "nsThreadUtils.h"
+#include "prenv.h"
+#include "prio.h"
+#include "prprf.h"
+#include "mozilla/gtest/MozAssertions.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/Printf.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/UniquePtrExtensions.h"
+#include "nsNetCID.h"
+#include "nsIURIMutator.h"
+
+using namespace JS;
+
+using namespace mozilla::scache;
+using mozilla::UniquePtr;
+
+void WaitForStartupTimer() {
+ StartupCache* sc = StartupCache::GetSingleton();
+ PR_Sleep(3 * PR_TicksPerSecond());
+
+ while (true) {
+ NS_ProcessPendingEvents(nullptr);
+ if (sc->StartupWriteComplete()) {
+ return;
+ }
+ PR_Sleep(1 * PR_TicksPerSecond());
+ }
+}
+
+class TestStartupCache : public ::testing::Test {
+ protected:
+ TestStartupCache();
+ ~TestStartupCache();
+
+ nsCOMPtr<nsIFile> mSCFile;
+};
+
+TestStartupCache::TestStartupCache() {
+ NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(mSCFile));
+ mSCFile->AppendNative("test-startupcache.tmp"_ns);
+#ifdef XP_WIN
+ nsAutoString env(u"MOZ_STARTUP_CACHE="_ns);
+ env.Append(mSCFile->NativePath());
+ _wputenv(env.get());
+#else
+ nsAutoCString path;
+ mSCFile->GetNativePath(path);
+ char* env = mozilla::Smprintf("MOZ_STARTUP_CACHE=%s", path.get()).release();
+ PR_SetEnv(env);
+ // We intentionally leak `env` here because it is required by PR_SetEnv
+ MOZ_LSAN_INTENTIONALLY_LEAK_OBJECT(env);
+#endif
+ StartupCache::GetSingleton()->InvalidateCache();
+}
+TestStartupCache::~TestStartupCache() {
+ PR_SetEnv("MOZ_STARTUP_CACHE=");
+ StartupCache::GetSingleton()->InvalidateCache();
+}
+
+TEST_F(TestStartupCache, StartupWriteRead) {
+ nsresult rv;
+ StartupCache* sc = StartupCache::GetSingleton();
+
+ const char* buf = "Market opportunities for BeardBook";
+ const char* id = "id";
+ const char* outbuf;
+ uint32_t len;
+
+ rv = sc->PutBuffer(id, mozilla::UniqueFreePtr<char[]>(strdup(buf)),
+ strlen(buf) + 1);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ rv = sc->GetBuffer(id, &outbuf, &len);
+ EXPECT_NS_SUCCEEDED(rv);
+ EXPECT_STREQ(buf, outbuf);
+
+ rv = sc->ResetStartupWriteTimerAndLock();
+ EXPECT_NS_SUCCEEDED(rv);
+ WaitForStartupTimer();
+
+ rv = sc->GetBuffer(id, &outbuf, &len);
+ EXPECT_NS_SUCCEEDED(rv);
+ EXPECT_STREQ(buf, outbuf);
+}
+
+TEST_F(TestStartupCache, WriteInvalidateRead) {
+ nsresult rv;
+ const char* buf = "BeardBook competitive analysis";
+ const char* id = "id";
+ const char* outbuf;
+ uint32_t len;
+ StartupCache* sc = StartupCache::GetSingleton();
+ ASSERT_TRUE(sc);
+
+ rv = sc->PutBuffer(id, mozilla::UniqueFreePtr<char[]>(strdup(buf)),
+ strlen(buf) + 1);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ sc->InvalidateCache();
+
+ rv = sc->GetBuffer(id, &outbuf, &len);
+ EXPECT_EQ(rv, NS_ERROR_NOT_AVAILABLE);
+}
+
+TEST_F(TestStartupCache, WriteObject) {
+ nsresult rv;
+
+ nsCOMPtr<nsIURI> obj;
+
+ constexpr auto spec = "http://www.mozilla.org"_ns;
+ rv = NS_MutateURI(NS_SIMPLEURIMUTATOR_CONTRACTID).SetSpec(spec).Finalize(obj);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ StartupCache* sc = StartupCache::GetSingleton();
+
+ // Create an object stream. Usually this is done with
+ // NewObjectOutputWrappedStorageStream, but that uses
+ // StartupCache::GetSingleton in debug builds, and we
+ // don't have access to that here. Obviously.
+ const char* id = "id";
+ nsCOMPtr<nsIStorageStream> storageStream =
+ do_CreateInstance("@mozilla.org/storagestream;1");
+ ASSERT_TRUE(storageStream);
+
+ rv = storageStream->Init(256, (uint32_t)-1);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ nsCOMPtr<nsIObjectOutputStream> objectOutput =
+ do_CreateInstance("@mozilla.org/binaryoutputstream;1");
+ ASSERT_TRUE(objectOutput);
+
+ nsCOMPtr<nsIOutputStream> outputStream = do_QueryInterface(storageStream);
+
+ rv = objectOutput->SetOutputStream(outputStream);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ nsCOMPtr<nsISupports> objQI(do_QueryInterface(obj));
+ rv = objectOutput->WriteObject(objQI, true);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ mozilla::UniqueFreePtr<char[]> buf;
+ uint32_t len;
+ NewBufferFromStorageStream(storageStream, &buf, &len);
+
+ // Since this is a post-startup write, it should be written and
+ // available.
+ rv = sc->PutBuffer(id, std::move(buf), len);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ const char* buf2;
+ uint32_t len2;
+ nsCOMPtr<nsIObjectInputStream> objectInput;
+ rv = sc->GetBuffer(id, &buf2, &len2);
+ EXPECT_NS_SUCCEEDED(rv);
+
+ rv = NewObjectInputStreamFromBuffer(buf2, len2, getter_AddRefs(objectInput));
+ EXPECT_NS_SUCCEEDED(rv);
+
+ nsCOMPtr<nsISupports> deserialized;
+ rv = objectInput->ReadObject(true, getter_AddRefs(deserialized));
+ EXPECT_NS_SUCCEEDED(rv);
+
+ nsCOMPtr<nsIURI> uri(do_QueryInterface(deserialized));
+ ASSERT_TRUE(uri);
+
+ nsCString outSpec;
+ rv = uri->GetSpec(outSpec);
+ EXPECT_NS_SUCCEEDED(rv);
+ ASSERT_TRUE(outSpec.Equals(spec));
+}
diff --git a/startupcache/test/browser/browser.toml b/startupcache/test/browser/browser.toml
new file mode 100644
index 0000000000..3de76f21ed
--- /dev/null
+++ b/startupcache/test/browser/browser.toml
@@ -0,0 +1,3 @@
+[DEFAULT]
+
+["browser_startupcache_telemetry.js"]
diff --git a/startupcache/test/browser/browser_startupcache_telemetry.js b/startupcache/test/browser/browser_startupcache_telemetry.js
new file mode 100644
index 0000000000..e4c8085bed
--- /dev/null
+++ b/startupcache/test/browser/browser_startupcache_telemetry.js
@@ -0,0 +1,50 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const LABELS_STARTUP_CACHE_REQUESTS = {
+ HitMemory: 0,
+ HitDisk: 1,
+ Miss: 2,
+};
+
+add_task(async function () {
+ // Turn off tab preloading to avoid issues with RemoteController.js
+ await SpecialPowers.pushPrefEnv({
+ set: [["browser.newtab.preload", false]],
+ });
+
+ Services.obs.notifyObservers(null, "startupcache-invalidate");
+ Services.telemetry.getSnapshotForHistograms("main", true);
+ let newWin = await BrowserTestUtils.openNewBrowserWindow();
+ let snapshot = Services.telemetry.getSnapshotForHistograms("main", true);
+ function histValue(label) {
+ return snapshot.parent.STARTUP_CACHE_REQUESTS.values[label] || 0;
+ }
+ Assert.equal(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitMemory), 0);
+ Assert.equal(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitDisk), 0);
+ Assert.notEqual(histValue(LABELS_STARTUP_CACHE_REQUESTS.Miss), 0);
+ await BrowserTestUtils.closeWindow(newWin);
+
+ newWin = await BrowserTestUtils.openNewBrowserWindow();
+ snapshot = Services.telemetry.getSnapshotForHistograms("main", true);
+ Assert.notEqual(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitMemory), 0);
+ Assert.equal(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitDisk), 0);
+
+ // Here and below, 50 is just a nice round number that should be well over
+ // what we should observe under normal circumstances, and well under what
+ // we should see if something is seriously wrong. It won't catch everything,
+ // but it's better than nothing, and better than a test that cries wolf.
+ Assert.less(histValue(LABELS_STARTUP_CACHE_REQUESTS.Miss), 50);
+ await BrowserTestUtils.closeWindow(newWin);
+
+ Services.obs.notifyObservers(null, "startupcache-invalidate", "memoryOnly");
+ newWin = await BrowserTestUtils.openNewBrowserWindow();
+ snapshot = Services.telemetry.getSnapshotForHistograms("main", true);
+ Assert.less(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitMemory), 50);
+ Assert.notEqual(histValue(LABELS_STARTUP_CACHE_REQUESTS.HitDisk), 0);
+ // Some misses can come through - just ensure it's a small number
+ Assert.less(histValue(LABELS_STARTUP_CACHE_REQUESTS.Miss), 50);
+ await BrowserTestUtils.closeWindow(newWin);
+});
diff --git a/startupcache/test/moz.build b/startupcache/test/moz.build
new file mode 100644
index 0000000000..0197659309
--- /dev/null
+++ b/startupcache/test/moz.build
@@ -0,0 +1,10 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+UNIFIED_SOURCES += [
+ "TestStartupCache.cpp",
+]
+FINAL_LIBRARY = "xul-gtest"