blob: b871f973adfebf2d3d7a10eaff10e4c1be1368ee [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/assert.h"
#include "vm/flags.h"
#include "vm/handles.h"
#include "vm/heap.h"
#include "vm/object.h"
#include "vm/unit_test.h"
#include "vm/zone.h"
namespace dart {
DECLARE_DEBUG_FLAG(bool, trace_handles);
// Unit test for Zone handle allocation.
TEST_CASE(AllocateZoneHandle) {
#if defined(DEBUG)
FLAG_trace_handles = true;
#endif
// The previously run stub code generation may have created zone handles.
int initial_count = VMHandles::ZoneHandleCount();
static const int kNumHandles = 65;
// Create some zone handles.
for (int i = 0; i < kNumHandles; i++) {
const Smi& handle = Smi::ZoneHandle(Smi::New(i));
EXPECT(handle.IsSmi());
EXPECT_EQ(i, handle.Value());
}
EXPECT_EQ(kNumHandles + initial_count, VMHandles::ZoneHandleCount());
// Create some more zone handles.
for (int i = kNumHandles; i < (2 * kNumHandles); i++) {
const Smi& handle = Smi::ZoneHandle(Smi::New(i));
EXPECT(handle.IsSmi());
EXPECT_EQ(i, handle.Value());
}
EXPECT_EQ((2 * kNumHandles) + initial_count, VMHandles::ZoneHandleCount());
}
// Unit test for Scope handle allocation.
TEST_CASE(AllocateScopeHandle) {
#if defined(DEBUG)
FLAG_trace_handles = true;
#endif
int32_t handle_count = VMHandles::ScopedHandleCount();
static const int kNumHandles = 65;
// Create some scoped handles.
{
Thread* thread = Thread::Current();
HANDLESCOPE(thread);
for (int i = 0; i < kNumHandles; i++) {
const Smi& handle = Smi::Handle(Smi::New(i));
EXPECT(handle.IsSmi());
EXPECT_EQ(i, handle.Value());
}
EXPECT_EQ((handle_count + kNumHandles), VMHandles::ScopedHandleCount());
// Create lots of scoped handles in a loop with a nested scope.
for (int loop = 0; loop < 1000; loop++) {
HANDLESCOPE(thread);
for (int i = 0; i < 2; i++) {
const Smi& handle = Smi::Handle(Smi::New(i + loop));
EXPECT(handle.IsSmi());
EXPECT_EQ(i + loop, handle.Value());
}
EXPECT_EQ((handle_count + kNumHandles + 2),
VMHandles::ScopedHandleCount());
}
EXPECT_EQ((handle_count + kNumHandles), VMHandles::ScopedHandleCount());
for (int i = 0; i < kNumHandles; i++) {
const Smi& handle = Smi::Handle(Smi::New(i));
EXPECT(handle.IsSmi());
EXPECT_EQ(i, handle.Value());
}
EXPECT_EQ((handle_count + (2 * kNumHandles)),
VMHandles::ScopedHandleCount());
}
EXPECT_EQ(handle_count, VMHandles::ScopedHandleCount());
}
} // namespace dart