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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/callback.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "mojo/edk/embedder/embedder.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "mojo/public/cpp/bindings/message.h"
#include "mojo/public/interfaces/bindings/tests/test_bad_messages.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo {
namespace test {
namespace {
class TestBadMessagesImpl : public TestBadMessages {
public:
TestBadMessagesImpl() : binding_(this) {}
~TestBadMessagesImpl() override {}
void BindImpl(TestBadMessagesRequest request) {
binding_.Bind(std::move(request));
}
const ReportBadMessageCallback& bad_message_callback() {
return bad_message_callback_;
}
private:
// TestBadMessages:
void RejectEventually(const RejectEventuallyCallback& callback) override {
bad_message_callback_ = GetBadMessageCallback();
callback.Run();
}
void RequestResponse(const RequestResponseCallback& callback) override {
callback.Run();
}
void RejectSync(const RejectSyncCallback& callback) override {
callback.Run();
ReportBadMessage("go away");
}
void RequestResponseSync(
const RequestResponseSyncCallback& callback) override {
callback.Run();
}
ReportBadMessageCallback bad_message_callback_;
mojo::Binding<TestBadMessages> binding_;
DISALLOW_COPY_AND_ASSIGN(TestBadMessagesImpl);
};
class ReportBadMessageTest : public testing::Test {
public:
ReportBadMessageTest() {}
void SetUp() override {
mojo::edk::SetDefaultProcessErrorCallback(
base::Bind(&ReportBadMessageTest::OnProcessError,
base::Unretained(this)));
impl_.BindImpl(MakeRequest(&proxy_));
}
void TearDown() override {
mojo::edk::SetDefaultProcessErrorCallback(
mojo::edk::ProcessErrorCallback());
}
TestBadMessages* proxy() { return proxy_.get(); }
TestBadMessagesImpl* impl() { return &impl_; }
void SetErrorHandler(const base::Closure& handler) {
error_handler_ = handler;
}
private:
void OnProcessError(const std::string& error) {
if (!error_handler_.is_null())
error_handler_.Run();
}
TestBadMessagesPtr proxy_;
TestBadMessagesImpl impl_;
base::Closure error_handler_;
base::MessageLoop message_loop;
};
TEST_F(ReportBadMessageTest, Request) {
// Verify that basic immediate error reporting works.
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
EXPECT_TRUE(proxy()->RejectSync());
EXPECT_TRUE(error);
}
TEST_F(ReportBadMessageTest, RequestAsync) {
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
// This should capture a bad message reporting callback in the impl.
base::RunLoop loop;
proxy()->RejectEventually(loop.QuitClosure());
loop.Run();
EXPECT_FALSE(error);
// Now we can run the callback and it should trigger a bad message report.
DCHECK(!impl()->bad_message_callback().is_null());
impl()->bad_message_callback().Run("bad!");
EXPECT_TRUE(error);
}
TEST_F(ReportBadMessageTest, Response) {
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
base::RunLoop loop;
proxy()->RequestResponse(
base::Bind([] (const base::Closure& quit) {
// Report a bad message inside the response callback. This should
// trigger the error handler.
ReportBadMessage("no way!");
quit.Run();
},
loop.QuitClosure()));
loop.Run();
EXPECT_TRUE(error);
}
TEST_F(ReportBadMessageTest, ResponseAsync) {
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
ReportBadMessageCallback bad_message_callback;
base::RunLoop loop;
proxy()->RequestResponse(
base::Bind([] (const base::Closure& quit,
ReportBadMessageCallback* callback) {
// Capture the bad message callback inside the response callback.
*callback = GetBadMessageCallback();
quit.Run();
},
loop.QuitClosure(), &bad_message_callback));
loop.Run();
EXPECT_FALSE(error);
// Invoking this callback should report a bad message and trigger the error
// handler immediately.
bad_message_callback.Run("this message is bad and should feel bad");
EXPECT_TRUE(error);
}
TEST_F(ReportBadMessageTest, ResponseSync) {
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
SyncMessageResponseContext context;
proxy()->RequestResponseSync();
EXPECT_FALSE(error);
context.ReportBadMessage("i don't like this response");
EXPECT_TRUE(error);
}
TEST_F(ReportBadMessageTest, ResponseSyncDeferred) {
bool error = false;
SetErrorHandler(base::Bind([] (bool* flag) { *flag = true; }, &error));
ReportBadMessageCallback bad_message_callback;
{
SyncMessageResponseContext context;
proxy()->RequestResponseSync();
bad_message_callback = context.GetBadMessageCallback();
}
EXPECT_FALSE(error);
bad_message_callback.Run("nope nope nope");
EXPECT_TRUE(error);
}
} // namespace
} // namespace test
} // namespace mojo
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