зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1289194 - Make LibFuzzerRunner use its own private ScopedXPCOM copy. r=ted
MozReview-Commit-ID: Kul2N4GA7O7 --HG-- extra : rebase_source : f2706dcf33c1d589b4f3711634c1d45c3a036f95
This commit is contained in:
Christian Holler (:decoder)
Родитель
3c7149e85d
Коммит
69b3ee60b9
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@ -5,9 +5,10 @@
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#include "LibFuzzerRunner.h"
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#include "mozilla/Attributes.h"
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#include "testing/TestHarness.h"
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#include "prenv.h"
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#include "LibFuzzerTestHarness.h"
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namespace mozilla {
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// We use a static var 'libFuzzerRunner' defined in nsAppRunner.cpp.
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@ -0,0 +1,312 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* Test harness for XPCOM objects, providing a scoped XPCOM initializer,
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* nsCOMPtr, nsRefPtr, do_CreateInstance, do_GetService, ns(Auto|C|)String,
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* and stdio.h/stdlib.h.
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*/
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#ifndef LibFuzzerTestHarness_h__
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#define LibFuzzerTestHarness_h__
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#include "mozilla/ArrayUtils.h"
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#include "prenv.h"
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#include "nsComponentManagerUtils.h"
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#include "nsServiceManagerUtils.h"
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsStringGlue.h"
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#include "nsAppDirectoryServiceDefs.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsIDirectoryService.h"
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#include "nsIFile.h"
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#include "nsIProperties.h"
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#include "nsIObserverService.h"
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#include "nsXULAppAPI.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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namespace {
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static uint32_t gFailCount = 0;
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/**
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* Prints the given failure message and arguments using printf, prepending
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* "TEST-UNEXPECTED-FAIL " for the benefit of the test harness and
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* appending "\n" to eliminate having to type it at each call site.
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*/
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void fail(const char* msg, ...)
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{
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va_list ap;
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printf("TEST-UNEXPECTED-FAIL | ");
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va_start(ap, msg);
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vprintf(msg, ap);
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va_end(ap);
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putchar('\n');
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++gFailCount;
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}
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/**
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* Prints the given success message and arguments using printf, prepending
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* "TEST-PASS " for the benefit of the test harness and
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* appending "\n" to eliminate having to type it at each call site.
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*/
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void passed(const char* msg, ...)
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{
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va_list ap;
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printf("TEST-PASS | ");
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va_start(ap, msg);
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vprintf(msg, ap);
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va_end(ap);
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putchar('\n');
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}
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//-----------------------------------------------------------------------------
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class ScopedLogging
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{
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public:
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ScopedLogging()
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{
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NS_LogInit();
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}
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~ScopedLogging()
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{
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NS_LogTerm();
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}
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};
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static class ScopedXPCOM : public nsIDirectoryServiceProvider2
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{
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public:
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NS_DECL_ISUPPORTS
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explicit ScopedXPCOM(const char* testName,
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nsIDirectoryServiceProvider *dirSvcProvider = nullptr)
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: mDirSvcProvider(dirSvcProvider)
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{
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mTestName = testName;
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printf("Running %s tests...\n", mTestName);
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nsresult rv = NS_InitXPCOM2(&mServMgr, nullptr, this);
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if (NS_FAILED(rv))
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{
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fail("NS_InitXPCOM2 returned failure code 0x%x", rv);
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mServMgr = nullptr;
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return;
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}
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}
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~ScopedXPCOM()
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{
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// If we created a profile directory, we need to remove it.
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if (mProfD) {
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nsCOMPtr<nsIObserverService> os =
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do_GetService(NS_OBSERVERSERVICE_CONTRACTID);
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MOZ_ASSERT(os);
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if (os) {
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MOZ_ALWAYS_SUCCEEDS(os->NotifyObservers(nullptr, "profile-change-net-teardown", nullptr));
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MOZ_ALWAYS_SUCCEEDS(os->NotifyObservers(nullptr, "profile-change-teardown", nullptr));
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MOZ_ALWAYS_SUCCEEDS(os->NotifyObservers(nullptr, "profile-before-change", nullptr));
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MOZ_ALWAYS_SUCCEEDS(os->NotifyObservers(nullptr, "profile-before-change-qm", nullptr));
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MOZ_ALWAYS_SUCCEEDS(os->NotifyObservers(nullptr, "profile-before-change-telemetry", nullptr));
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}
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if (NS_FAILED(mProfD->Remove(true))) {
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NS_WARNING("Problem removing profile directory");
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}
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mProfD = nullptr;
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}
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if (mServMgr)
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{
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NS_RELEASE(mServMgr);
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nsresult rv = NS_ShutdownXPCOM(nullptr);
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if (NS_FAILED(rv))
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{
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fail("XPCOM shutdown failed with code 0x%x", rv);
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exit(1);
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}
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}
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printf("Finished running %s tests.\n", mTestName);
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}
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bool failed()
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{
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return mServMgr == nullptr;
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}
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already_AddRefed<nsIFile> GetProfileDirectory()
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{
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if (mProfD) {
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nsCOMPtr<nsIFile> copy = mProfD;
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return copy.forget();
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}
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// Create a unique temporary folder to use for this test.
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// Note that runcppunittests.py will run tests with a temp
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// directory as the cwd, so just put something under that.
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nsCOMPtr<nsIFile> profD;
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nsresult rv = NS_GetSpecialDirectory(NS_OS_CURRENT_PROCESS_DIR,
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getter_AddRefs(profD));
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NS_ENSURE_SUCCESS(rv, nullptr);
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rv = profD->Append(NS_LITERAL_STRING("cpp-unit-profd"));
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NS_ENSURE_SUCCESS(rv, nullptr);
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rv = profD->CreateUnique(nsIFile::DIRECTORY_TYPE, 0755);
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NS_ENSURE_SUCCESS(rv, nullptr);
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mProfD = profD;
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return profD.forget();
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}
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already_AddRefed<nsIFile> GetGREDirectory()
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{
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if (mGRED) {
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nsCOMPtr<nsIFile> copy = mGRED;
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return copy.forget();
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}
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char* env = PR_GetEnv("MOZ_XRE_DIR");
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nsCOMPtr<nsIFile> greD;
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if (env) {
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NS_NewLocalFile(NS_ConvertUTF8toUTF16(env), false,
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getter_AddRefs(greD));
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}
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mGRED = greD;
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return greD.forget();
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}
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already_AddRefed<nsIFile> GetGREBinDirectory()
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{
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if (mGREBinD) {
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nsCOMPtr<nsIFile> copy = mGREBinD;
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return copy.forget();
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}
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nsCOMPtr<nsIFile> greD = GetGREDirectory();
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if (!greD) {
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return greD.forget();
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}
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greD->Clone(getter_AddRefs(mGREBinD));
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#ifdef XP_MACOSX
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nsAutoCString leafName;
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mGREBinD->GetNativeLeafName(leafName);
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if (leafName.Equals("Resources")) {
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mGREBinD->SetNativeLeafName(NS_LITERAL_CSTRING("MacOS"));
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}
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#endif
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nsCOMPtr<nsIFile> copy = mGREBinD;
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return copy.forget();
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}
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////////////////////////////////////////////////////////////////////////////
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//// nsIDirectoryServiceProvider
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NS_IMETHODIMP GetFile(const char *aProperty, bool *_persistent,
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nsIFile **_result) override
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{
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// If we were supplied a directory service provider, ask it first.
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if (mDirSvcProvider &&
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NS_SUCCEEDED(mDirSvcProvider->GetFile(aProperty, _persistent,
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_result))) {
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return NS_OK;
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}
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// Otherwise, the test harness provides some directories automatically.
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if (0 == strcmp(aProperty, NS_APP_USER_PROFILE_50_DIR) ||
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0 == strcmp(aProperty, NS_APP_USER_PROFILE_LOCAL_50_DIR) ||
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0 == strcmp(aProperty, NS_APP_PROFILE_LOCAL_DIR_STARTUP)) {
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nsCOMPtr<nsIFile> profD = GetProfileDirectory();
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NS_ENSURE_TRUE(profD, NS_ERROR_FAILURE);
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nsCOMPtr<nsIFile> clone;
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nsresult rv = profD->Clone(getter_AddRefs(clone));
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NS_ENSURE_SUCCESS(rv, rv);
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*_persistent = true;
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clone.forget(_result);
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return NS_OK;
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} else if (0 == strcmp(aProperty, NS_GRE_DIR)) {
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nsCOMPtr<nsIFile> greD = GetGREDirectory();
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NS_ENSURE_TRUE(greD, NS_ERROR_FAILURE);
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*_persistent = true;
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greD.forget(_result);
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return NS_OK;
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} else if (0 == strcmp(aProperty, NS_GRE_BIN_DIR)) {
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nsCOMPtr<nsIFile> greBinD = GetGREBinDirectory();
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NS_ENSURE_TRUE(greBinD, NS_ERROR_FAILURE);
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*_persistent = true;
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greBinD.forget(_result);
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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////////////////////////////////////////////////////////////////////////////
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//// nsIDirectoryServiceProvider2
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NS_IMETHODIMP GetFiles(const char *aProperty, nsISimpleEnumerator **_enum) override
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{
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// If we were supplied a directory service provider, ask it first.
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nsCOMPtr<nsIDirectoryServiceProvider2> provider =
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do_QueryInterface(mDirSvcProvider);
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if (provider && NS_SUCCEEDED(provider->GetFiles(aProperty, _enum))) {
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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private:
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const char* mTestName;
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nsIServiceManager* mServMgr;
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nsCOMPtr<nsIDirectoryServiceProvider> mDirSvcProvider;
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nsCOMPtr<nsIFile> mProfD;
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nsCOMPtr<nsIFile> mGRED;
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nsCOMPtr<nsIFile> mGREBinD;
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};
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NS_IMPL_QUERY_INTERFACE(
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ScopedXPCOM,
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nsIDirectoryServiceProvider,
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nsIDirectoryServiceProvider2
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)
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NS_IMETHODIMP_(MozExternalRefCountType)
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ScopedXPCOM::AddRef()
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{
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return 2;
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}
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NS_IMETHODIMP_(MozExternalRefCountType)
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ScopedXPCOM::Release()
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{
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return 1;
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}
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} // namespace
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#endif // LibFuzzerTestHarness_h__
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