64 lines
1.4 KiB
C

#include "unity.h"
#include "stack.h"
int data1 = 10;
int data2 = 20;
int data3 = 30;
StackNode *stack = NULL;
void setUp(void)
{
// set stuff up here
}
void tearDown(void)
{
clearStack(stack);
stack = NULL;
}
void test_push_and_pop(void)
{
stack = push(stack, &data1);
stack = push(stack, &data2);
stack = push(stack, &data3);
TEST_ASSERT_EQUAL_PTR(top(stack), &data3);
stack = pop(stack);
TEST_ASSERT_EQUAL_PTR(top(stack), &data2);
stack = pop(stack);
TEST_ASSERT_EQUAL_PTR(top(stack), &data1);
stack = pop(stack);
}
// pop and top should return NULL if called with NULL ptr
void test_handle_NULL(void)
{
TEST_ASSERT_NULL(pop(stack));
TEST_ASSERT_NULL(top(stack));
}
void test_top(void)
{
TEST_ASSERT_NULL(top(stack));
stack = push(stack, &data1);
TEST_ASSERT_EQUAL_PTR(top(stack), &data1);
TEST_ASSERT_EQUAL_INT(*(int *)top(stack), data1);
stack = push(stack, &data2);
TEST_ASSERT_EQUAL_PTR(top(stack), &data2);
TEST_ASSERT_EQUAL_INT(*(int *)top(stack), data2);
stack = push(stack, &data3);
TEST_ASSERT_EQUAL_PTR(top(stack), &data3);
TEST_ASSERT_EQUAL_INT(*(int *)top(stack), data3);
}
int main(void)
{
printf("============================\nStack tests\n============================\n");
UNITY_BEGIN();
RUN_TEST(test_push_and_pop);
RUN_TEST(test_handle_NULL);
RUN_TEST(test_top);
return UNITY_END();
}