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#include "BLI_stack.hh"
#include "BLI_strict_flags.h"
#include "BLI_vector.hh"
#include "testing/testing.h"
using namespace blender;
TEST(stack, DefaultConstructor)
{
Stack<int> stack;
EXPECT_EQ(stack.size(), 0u);
EXPECT_TRUE(stack.is_empty());
}
TEST(stack, SpanConstructor)
{
std::array<int, 3> array = {4, 7, 2};
Stack<int> stack(array);
EXPECT_EQ(stack.size(), 3u);
EXPECT_EQ(stack.pop(), 2);
EXPECT_EQ(stack.pop(), 7);
EXPECT_EQ(stack.pop(), 4);
EXPECT_TRUE(stack.is_empty());
}
TEST(stack, CopyConstructor)
{
Stack<int> stack1 = {1, 2, 3, 4, 5, 6, 7};
Stack<int> stack2 = stack1;
EXPECT_EQ(stack1.size(), 7u);
EXPECT_EQ(stack2.size(), 7u);
for (int i = 7; i >= 1; i--) {
EXPECT_FALSE(stack1.is_empty());
EXPECT_FALSE(stack2.is_empty());
EXPECT_EQ(stack1.pop(), i);
EXPECT_EQ(stack2.pop(), i);
}
EXPECT_TRUE(stack1.is_empty());
EXPECT_TRUE(stack2.is_empty());
}
TEST(stack, MoveConstructor)
{
Stack<int> stack1 = {1, 2, 3, 4, 5, 6, 7};
Stack<int> stack2 = std::move(stack1);
EXPECT_EQ(stack1.size(), 0u);
EXPECT_EQ(stack2.size(), 7u);
for (int i = 7; i >= 1; i--) {
EXPECT_EQ(stack2.pop(), i);
}
}
TEST(stack, CopyAssignment)
{
Stack<int> stack1 = {1, 2, 3, 4, 5, 6, 7};
Stack<int> stack2 = {2, 3, 4, 5, 6, 7};
stack2 = stack1;
EXPECT_EQ(stack1.size(), 7u);
EXPECT_EQ(stack2.size(), 7u);
for (int i = 7; i >= 1; i--) {
EXPECT_FALSE(stack1.is_empty());
EXPECT_FALSE(stack2.is_empty());
EXPECT_EQ(stack1.pop(), i);
EXPECT_EQ(stack2.pop(), i);
}
EXPECT_TRUE(stack1.is_empty());
EXPECT_TRUE(stack2.is_empty());
}
TEST(stack, MoveAssignment)
{
Stack<int> stack1 = {1, 2, 3, 4, 5, 6, 7};
Stack<int> stack2 = {5, 3, 7, 2, 2};
stack2 = std::move(stack1);
EXPECT_EQ(stack1.size(), 0u);
EXPECT_EQ(stack2.size(), 7u);
for (int i = 7; i >= 1; i--) {
EXPECT_EQ(stack2.pop(), i);
}
}
TEST(stack, Push)
{
Stack<int> stack;
EXPECT_EQ(stack.size(), 0u);
stack.push(3);
EXPECT_EQ(stack.size(), 1u);
stack.push(5);
EXPECT_EQ(stack.size(), 2u);
}
TEST(stack, PushMultiple)
{
Stack<int> stack;
EXPECT_EQ(stack.size(), 0u);
stack.push_multiple({1, 2, 3});
EXPECT_EQ(stack.size(), 3u);
EXPECT_EQ(stack.pop(), 3);
EXPECT_EQ(stack.pop(), 2);
EXPECT_EQ(stack.pop(), 1);
}
TEST(stack, PushPopMany)
{
Stack<int> stack;
for (int i = 0; i < 1000; i++) {
stack.push(i);
EXPECT_EQ(stack.size(), static_cast<unsigned int>(i + 1));
}
for (int i = 999; i > 50; i--) {
EXPECT_EQ(stack.pop(), i);
EXPECT_EQ(stack.size(), static_cast<unsigned int>(i));
}
for (int i = 51; i < 5000; i++) {
stack.push(i);
EXPECT_EQ(stack.size(), static_cast<unsigned int>(i + 1));
}
for (int i = 4999; i >= 0; i--) {
EXPECT_EQ(stack.pop(), i);
EXPECT_EQ(stack.size(), static_cast<unsigned int>(i));
}
}
TEST(stack, PushMultipleAfterPop)
{
Stack<int> stack;
for (int i = 0; i < 1000; i++) {
stack.push(i);
}
for (int i = 999; i >= 0; i--) {
EXPECT_EQ(stack.pop(), i);
}
Vector<int> values;
for (int i = 0; i < 5000; i++) {
values.append(i);
}
stack.push_multiple(values);
EXPECT_EQ(stack.size(), 5000u);
for (int i = 4999; i >= 0; i--) {
EXPECT_EQ(stack.pop(), i);
}
}
TEST(stack, Pop)
{
Stack<int> stack;
stack.push(4);
stack.push(6);
EXPECT_EQ(stack.pop(), 6);
EXPECT_EQ(stack.pop(), 4);
}
TEST(stack, Peek)
{
Stack<int> stack;
stack.push(3);
stack.push(4);
EXPECT_EQ(stack.peek(), 4);
EXPECT_EQ(stack.peek(), 4);
stack.pop();
EXPECT_EQ(stack.peek(), 3);
}
TEST(stack, UniquePtrValues)
{
Stack<std::unique_ptr<int>> stack;
stack.push(std::unique_ptr<int>(new int()));
stack.push(std::unique_ptr<int>(new int()));
std::unique_ptr<int> a = stack.pop();
std::unique_ptr<int> &b = stack.peek();
UNUSED_VARS(a, b);
}
TEST(stack, OveralignedValues)
{
Stack<AlignedBuffer<1, 512>, 2> stack;
for (int i = 0; i < 100; i++) {
stack.push({});
EXPECT_EQ((uintptr_t)&stack.peek() % 512, 0);
}
}
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