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#include "node_internals.h"
#include "libplatform/libplatform.h"
#include <string>
#include "gtest/gtest.h"
#include "node_test_fixture.h"
// This task increments the given run counter and reposts itself until the
// repost counter reaches zero.
class RepostingTask : public v8::Task {
public:
explicit RepostingTask(int repost_count,
int* run_count,
v8::Isolate* isolate,
node::NodePlatform* platform)
: repost_count_(repost_count),
run_count_(run_count),
isolate_(isolate),
platform_(platform) {}
// v8::Task implementation
void Run() final {
++*run_count_;
if (repost_count_ > 0) {
--repost_count_;
std::shared_ptr<v8::TaskRunner> task_runner =
platform_->GetForegroundTaskRunner(isolate_);
task_runner->PostTask(std::make_unique<RepostingTask>(
repost_count_, run_count_, isolate_, platform_));
}
}
private:
int repost_count_;
int* run_count_;
v8::Isolate* isolate_;
node::NodePlatform* platform_;
};
class PlatformTest : public EnvironmentTestFixture {};
TEST_F(PlatformTest, SkipNewTasksInFlushForegroundTasks) {
v8::Isolate::Scope isolate_scope(isolate_);
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
int run_count = 0;
std::shared_ptr<v8::TaskRunner> task_runner =
platform->GetForegroundTaskRunner(isolate_);
task_runner->PostTask(
std::make_unique<RepostingTask>(2, &run_count, isolate_, platform.get()));
EXPECT_TRUE(platform->FlushForegroundTasks(isolate_));
EXPECT_EQ(1, run_count);
EXPECT_TRUE(platform->FlushForegroundTasks(isolate_));
EXPECT_EQ(2, run_count);
EXPECT_TRUE(platform->FlushForegroundTasks(isolate_));
EXPECT_EQ(3, run_count);
EXPECT_FALSE(platform->FlushForegroundTasks(isolate_));
}