v8/test/cctest/cctest.h
2013-08-05 07:34:29 +00:00

357 lines
12 KiB
C++

// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CCTEST_H_
#define CCTEST_H_
#include "v8.h"
#ifndef TEST
#define TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, NULL, true); \
static void Test##Name()
#endif
#ifndef DEPENDENT_TEST
#define DEPENDENT_TEST(Name, Dep) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, #Dep, true); \
static void Test##Name()
#endif
#ifndef DISABLED_TEST
#define DISABLED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, NULL, false); \
static void Test##Name()
#endif
#define EXTENSION_LIST(V) \
V(GC_EXTENSION, "v8/gc") \
V(PRINT_EXTENSION, "v8/print") \
V(TRACE_EXTENSION, "v8/trace")
#define DEFINE_EXTENSION_ID(Name, Ident) Name##_ID,
enum CcTestExtensionIds {
EXTENSION_LIST(DEFINE_EXTENSION_ID)
kMaxExtensions
};
#undef DEFINE_EXTENSION_ID
typedef v8::internal::EnumSet<CcTestExtensionIds> CcTestExtensionFlags;
#define DEFINE_EXTENSION_FLAG(Name, Ident) \
static const CcTestExtensionFlags Name(1 << Name##_ID);
static const CcTestExtensionFlags NO_EXTENSIONS(0);
static const CcTestExtensionFlags ALL_EXTENSIONS((1 << kMaxExtensions) - 1);
EXTENSION_LIST(DEFINE_EXTENSION_FLAG)
#undef DEFINE_EXTENSION_FLAG
class CcTest {
public:
typedef void (TestFunction)();
CcTest(TestFunction* callback, const char* file, const char* name,
const char* dependency, bool enabled);
void Run() { callback_(); }
static CcTest* last() { return last_; }
CcTest* prev() { return prev_; }
const char* file() { return file_; }
const char* name() { return name_; }
const char* dependency() { return dependency_; }
bool enabled() { return enabled_; }
static v8::Isolate* default_isolate() { return default_isolate_; }
static v8::Handle<v8::Context> env() {
return v8::Local<v8::Context>::New(default_isolate_, context_);
}
static v8::Isolate* isolate() { return default_isolate_; }
// Helper function to initialize the VM.
static void InitializeVM(CcTestExtensionFlags extensions = NO_EXTENSIONS);
private:
friend int main(int argc, char** argv);
static void set_default_isolate(v8::Isolate* default_isolate) {
default_isolate_ = default_isolate;
}
TestFunction* callback_;
const char* file_;
const char* name_;
const char* dependency_;
bool enabled_;
CcTest* prev_;
static CcTest* last_;
static v8::Isolate* default_isolate_;
static v8::Persistent<v8::Context> context_;
};
// Switches between all the Api tests using the threading support.
// In order to get a surprising but repeatable pattern of thread
// switching it has extra semaphores to control the order in which
// the tests alternate, not relying solely on the big V8 lock.
//
// A test is augmented with calls to ApiTestFuzzer::Fuzz() in its
// callbacks. This will have no effect when we are not running the
// thread fuzzing test. In the thread fuzzing test it will
// pseudorandomly select a successor thread and switch execution
// to that thread, suspending the current test.
class ApiTestFuzzer: public v8::internal::Thread {
public:
void CallTest();
// The ApiTestFuzzer is also a Thread, so it has a Run method.
virtual void Run();
enum PartOfTest { FIRST_PART,
SECOND_PART,
THIRD_PART,
FOURTH_PART,
LAST_PART = FOURTH_PART };
static void SetUp(PartOfTest part);
static void RunAllTests();
static void TearDown();
// This method switches threads if we are running the Threading test.
// Otherwise it does nothing.
static void Fuzz();
private:
explicit ApiTestFuzzer(int num)
: Thread("ApiTestFuzzer"),
test_number_(num),
gate_(v8::internal::OS::CreateSemaphore(0)),
active_(true) {
}
~ApiTestFuzzer() { delete gate_; }
static bool fuzzing_;
static int tests_being_run_;
static int current_;
static int active_tests_;
static bool NextThread();
int test_number_;
v8::internal::Semaphore* gate_;
bool active_;
void ContextSwitch();
static int GetNextTestNumber();
static v8::internal::Semaphore* all_tests_done_;
};
#define THREADED_TEST(Name) \
static void Test##Name(); \
RegisterThreadedTest register_##Name(Test##Name, #Name); \
/* */ TEST(Name)
class RegisterThreadedTest {
public:
explicit RegisterThreadedTest(CcTest::TestFunction* callback,
const char* name)
: fuzzer_(NULL), callback_(callback), name_(name) {
prev_ = first_;
first_ = this;
count_++;
}
static int count() { return count_; }
static RegisterThreadedTest* nth(int i) {
CHECK(i < count());
RegisterThreadedTest* current = first_;
while (i > 0) {
i--;
current = current->prev_;
}
return current;
}
CcTest::TestFunction* callback() { return callback_; }
ApiTestFuzzer* fuzzer_;
const char* name() { return name_; }
private:
static RegisterThreadedTest* first_;
static int count_;
CcTest::TestFunction* callback_;
RegisterThreadedTest* prev_;
const char* name_;
};
// A LocalContext holds a reference to a v8::Context.
class LocalContext {
public:
LocalContext(v8::ExtensionConfiguration* extensions = 0,
v8::Handle<v8::ObjectTemplate> global_template =
v8::Handle<v8::ObjectTemplate>(),
v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>()) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate,
extensions,
global_template,
global_object);
context_.Reset(isolate, context);
context->Enter();
// We can't do this later perhaps because of a fatal error.
isolate_ = context->GetIsolate();
}
virtual ~LocalContext() {
v8::HandleScope scope(isolate_);
v8::Local<v8::Context>::New(isolate_, context_)->Exit();
context_.Dispose();
}
v8::Context* operator->() {
return *reinterpret_cast<v8::Context**>(&context_);
}
v8::Context* operator*() { return operator->(); }
bool IsReady() { return !context_.IsEmpty(); }
v8::Local<v8::Context> local() {
return v8::Local<v8::Context>::New(isolate_, context_);
}
private:
v8::Persistent<v8::Context> context_;
v8::Isolate* isolate_;
};
static inline v8::Local<v8::Value> v8_num(double x) {
return v8::Number::New(x);
}
static inline v8::Local<v8::String> v8_str(const char* x) {
return v8::String::New(x);
}
static inline v8::Local<v8::Script> v8_compile(const char* x) {
return v8::Script::Compile(v8_str(x));
}
// Helper function that compiles and runs the source.
static inline v8::Local<v8::Value> CompileRun(const char* source) {
return v8::Script::Compile(v8::String::New(source))->Run();
}
// Helper function that compiles and runs the source with given origin.
static inline v8::Local<v8::Value> CompileRunWithOrigin(const char* source,
const char* origin_url,
int line_number,
int column_number) {
v8::ScriptOrigin origin(v8::String::New(origin_url),
v8::Integer::New(line_number),
v8::Integer::New(column_number));
return v8::Script::Compile(v8::String::New(source), &origin)->Run();
}
// Pick a slightly different port to allow tests to be run in parallel.
static inline int FlagDependentPortOffset() {
return ::v8::internal::FLAG_crankshaft == false ? 100 :
::v8::internal::FLAG_always_opt ? 200 : 0;
}
// Helper function that simulates a full new-space in the heap.
static inline void SimulateFullSpace(v8::internal::NewSpace* space) {
int new_linear_size = static_cast<int>(
*space->allocation_limit_address() - *space->allocation_top_address());
v8::internal::MaybeObject* maybe = space->AllocateRaw(new_linear_size);
v8::internal::FreeListNode* node = v8::internal::FreeListNode::cast(maybe);
node->set_size(space->heap(), new_linear_size);
}
// Helper function that simulates a full old-space in the heap.
static inline void SimulateFullSpace(v8::internal::PagedSpace* space) {
int old_linear_size = static_cast<int>(space->limit() - space->top());
space->Free(space->top(), old_linear_size);
space->SetTop(space->limit(), space->limit());
space->ResetFreeList();
space->ClearStats();
}
// Adapted from http://en.wikipedia.org/wiki/Multiply-with-carry
class RandomNumberGenerator {
public:
RandomNumberGenerator() {
init();
}
void init(uint32_t seed = 0x5688c73e) {
static const uint32_t phi = 0x9e3779b9;
c = 362436;
i = kQSize-1;
Q[0] = seed;
Q[1] = seed + phi;
Q[2] = seed + phi + phi;
for (unsigned j = 3; j < kQSize; j++) {
Q[j] = Q[j - 3] ^ Q[j - 2] ^ phi ^ j;
}
}
uint32_t next() {
uint64_t a = 18782;
uint32_t r = 0xfffffffe;
i = (i + 1) & (kQSize-1);
uint64_t t = a * Q[i] + c;
c = (t >> 32);
uint32_t x = static_cast<uint32_t>(t + c);
if (x < c) {
x++;
c++;
}
return (Q[i] = r - x);
}
uint32_t next(int max) {
return next() % max;
}
bool next(double threshold) {
ASSERT(threshold >= 0.0 && threshold <= 1.0);
if (threshold == 1.0) return true;
if (threshold == 0.0) return false;
uint32_t value = next() % 100000;
return threshold > static_cast<double>(value)/100000.0;
}
private:
static const uint32_t kQSize = 4096;
uint32_t Q[kQSize];
uint32_t c;
uint32_t i;
};
#endif // ifndef CCTEST_H_