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#include <cutter.h>
#include <stack.h>
void test_new_stack (void);
void test_push (void);
void test_pop (void);
static Stack *stack;
void
setup (void)
{
stack = NULL;
}
void
teardown (void)
{
if (stack)
stack_free(stack);
}
void
test_new_stack (void)
{
stack = stack_new();
cut_assert(stack_is_empty(stack));
}
void
test_push (void)
{
stack = stack_new();
cut_assert_equal_int(0, stack_get_size(stack));
stack_push(stack, 100);
cut_assert_equal_int(1, stack_get_size(stack));
cut_assert(!stack_is_empty(stack));
}
void
test_pop (void)
{
stack = stack_new();
stack_push(stack, 10);
stack_push(stack, 20);
stack_push(stack, 30);
cut_assert_equal_int(3, stack_get_size(stack));
cut_assert_equal_int(30, stack_pop(stack));
cut_assert_equal_int(2, stack_get_size(stack));
cut_assert_equal_int(20, stack_pop(stack));
cut_assert_equal_int(1, stack_get_size(stack));
stack_push(stack, 40);
cut_assert_equal_int(2, stack_get_size(stack));
cut_assert_equal_int(40, stack_pop(stack));
cut_assert_equal_int(1, stack_get_size(stack));
cut_assert_equal_int(10, stack_pop(stack));
cut_assert_equal_int(0, stack_get_size(stack));
cut_assert(stack_is_empty(stack));
}
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