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#include "BLI_stack_cxx.h"
#include "testing/testing.h"
using IntStack = BLI::Stack<int>;
TEST(stack, DefaultConstructor)
{
IntStack stack;
EXPECT_EQ(stack.size(), 0);
EXPECT_TRUE(stack.empty());
}
TEST(stack, ArrayRefConstructor)
{
std::array<int, 3> array = {4, 7, 2};
IntStack stack(array);
EXPECT_EQ(stack.size(), 3);
EXPECT_EQ(stack.pop(), 2);
EXPECT_EQ(stack.pop(), 7);
EXPECT_EQ(stack.pop(), 4);
EXPECT_TRUE(stack.empty());
}
TEST(stack, Push)
{
IntStack stack;
EXPECT_EQ(stack.size(), 0);
stack.push(3);
EXPECT_EQ(stack.size(), 1);
stack.push(5);
EXPECT_EQ(stack.size(), 2);
}
TEST(stack, Pop)
{
IntStack stack;
stack.push(4);
stack.push(6);
EXPECT_EQ(stack.pop(), 6);
EXPECT_EQ(stack.pop(), 4);
}
TEST(stack, Peek)
{
IntStack stack;
stack.push(3);
stack.push(4);
EXPECT_EQ(stack.peek(), 4);
EXPECT_EQ(stack.peek(), 4);
stack.pop();
EXPECT_EQ(stack.peek(), 3);
}
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