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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTemplates.h"
#include "Test.h"
// Tests for some of the helpers in SkTemplates.h
static void test_automalloc_realloc(skiatest::Reporter* reporter) {
SkAutoSTMalloc<1, int> array;
// test we have a valid pointer, should not crash
array[0] = 1;
REPORTER_ASSERT(reporter, array[0] == 1);
// using realloc for init
array.realloc(1);
array[0] = 1;
REPORTER_ASSERT(reporter, array[0] == 1);
// verify realloc can grow
array.realloc(2);
REPORTER_ASSERT(reporter, array[0] == 1);
// realloc can shrink
array.realloc(1);
REPORTER_ASSERT(reporter, array[0] == 1);
// should not crash
array.realloc(0);
// grow and shrink again
array.realloc(10);
for (int i = 0; i < 10; i++) {
array[i] = 10 - i;
}
array.realloc(20);
for (int i = 0; i < 10; i++) {
REPORTER_ASSERT(reporter, array[i] == 10 - i);
}
array.realloc(10);
for (int i = 0; i < 10; i++) {
REPORTER_ASSERT(reporter, array[i] == 10 - i);
}
array.realloc(1);
REPORTER_ASSERT(reporter, array[0] = 10);
// resets mixed with realloc, below stack alloc size
array.reset(0);
array.realloc(1);
array.reset(1);
array[0] = 1;
REPORTER_ASSERT(reporter, array[0] == 1);
// reset and realloc > stack size
array.reset(2);
array.realloc(3);
array[0] = 1;
REPORTER_ASSERT(reporter, array[0] == 1);
array.realloc(1);
REPORTER_ASSERT(reporter, array[0] == 1);
}
DEF_TEST(Templates, reporter) {
test_automalloc_realloc(reporter);
}
constexpr int static kStackPreallocCount = 10;
// Ensures the containers in SkTemplates.h all have a consistent api.
template<typename TContainer, typename TCount>
static void test_container_apis(skiatest::Reporter* reporter) {
REPORTER_ASSERT(reporter, !TContainer((TCount)0).get());
REPORTER_ASSERT(reporter, TContainer((TCount)1).get());
REPORTER_ASSERT(reporter, TContainer((TCount)kStackPreallocCount).get());
REPORTER_ASSERT(reporter, TContainer((TCount)kStackPreallocCount + 1).get());
TContainer container;
// The default constructor may or may not init to empty, depending on the type of container.
container.reset((TCount)1);
REPORTER_ASSERT(reporter, container.get());
container.reset((TCount)kStackPreallocCount);
REPORTER_ASSERT(reporter, container.get());
container.reset((TCount)kStackPreallocCount + 1);
REPORTER_ASSERT(reporter, container.get());
container.reset((TCount)0);
REPORTER_ASSERT(reporter, !container.get());
}
DEF_TEST(TemplateContainerAPIs, reporter) {
test_container_apis<SkAutoTArray<int>, int>(reporter);
test_container_apis<SkAutoSTArray<kStackPreallocCount, int>, int>(reporter);
test_container_apis<SkAutoTMalloc<int>, size_t>(reporter);
test_container_apis<SkAutoSTMalloc<kStackPreallocCount, int>, size_t>(reporter);
}
// Ensures that realloc(0) results in a null pointer.
template<typename TAutoMalloc> static void test_realloc_to_zero(skiatest::Reporter* reporter) {
TAutoMalloc autoMalloc(kStackPreallocCount);
REPORTER_ASSERT(reporter, autoMalloc.get());
autoMalloc.realloc(0);
REPORTER_ASSERT(reporter, !autoMalloc.get());
autoMalloc.realloc(kStackPreallocCount + 1);
REPORTER_ASSERT(reporter, autoMalloc.get());
autoMalloc.realloc(0);
REPORTER_ASSERT(reporter, !autoMalloc.get());
autoMalloc.realloc(kStackPreallocCount);
REPORTER_ASSERT(reporter, autoMalloc.get());
}
DEF_TEST(AutoReallocToZero, reporter) {
test_realloc_to_zero<SkAutoTMalloc<int> >(reporter);
test_realloc_to_zero<SkAutoSTMalloc<kStackPreallocCount, int> >(reporter);
}
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