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#ifndef STACK_TEST_H
#define STACK_TEST_H
#include <cxxtest/TestSuite.h>
#include <stack.h>
class stack_test : public CxxTest::TestSuite
{
private:
stack_t* stack;
public:
void setUp() {
stack = stack_create();
}
void tearDown() {
stack_free(stack);
}
void test_create_stack() {
TS_ASSERT_DIFFERS((stack_t*)0, stack);
}
void test_new_stack_is_empty() {
TS_ASSERT_EQUALS(0, stack_size(stack));
}
void test_one_push_add_one_to_size() {
stack_push(stack, 1);
TS_ASSERT_EQUALS(1, stack_size(stack));
}
void test_push_pop_doesnt_change_size() {
stack_push(stack, 1);
(void)stack_pop(stack);
TS_ASSERT_EQUALS(0, stack_size(stack));
}
void test_peak_after_push() {
stack_push(stack, 1);
TS_ASSERT_EQUALS(1, stack_peak(stack))
}
void test_initial_capacity_is_positive() {
TS_ASSERT(stack_capacity(stack) > 0);
}
void test_pop_on_empty() {
TS_ASSERT_EQUALS(0, stack_pop(stack));
TS_ASSERT_EQUALS(0, stack_size(stack));
}
void test_peak_on_empty() {
TS_ASSERT_EQUALS(0, stack_peak(stack));
}
void test_capacity_gte_size() {
TS_ASSERT_LESS_THAN_EQUALS(stack_size(stack), stack_capacity(stack));
int init_capacity = stack_capacity(stack);
for (int i=0; i < init_capacity + 1; i++) {
stack_push(stack, i);
}
TS_ASSERT_LESS_THAN_EQUALS(stack_size(stack), stack_capacity(stack));
}
};
#endif // STACK_TEST_H
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