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#include <stdio.h>
#include <head-unit.h>
#include "prof_history.h"
void previous_on_empty_returns_current(void)
{
PHistory history = p_history_new(10);
char *item = p_history_previous(history, "inp");
assert_string_equals("inp", item);
}
void next_on_empty_returns_current(void)
{
PHistory history = p_history_new(10);
char *item = p_history_next(history, "inp");
assert_string_equals("inp", item);
}
void previous_once_returns_last(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item = p_history_previous(history, "inp");
assert_string_equals("Hello", item);
}
void previous_twice_when_one_returns_first(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item1 = p_history_previous(history, NULL);
char *item2 = p_history_previous(history, item1);
assert_string_equals("Hello", item2);
}
void previous_always_stops_at_first(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item1 = p_history_previous(history, NULL);
char *item2 = p_history_previous(history, item1);
char *item3 = p_history_previous(history, item2);
char *item4 = p_history_previous(history, item3);
char *item5 = p_history_previous(history, item4);
char *item6 = p_history_previous(history, item5);
assert_string_equals("Hello", item6);
}
void previous_goes_to_correct_element(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
p_history_append(history, "world");
p_history_append(history, "whats");
p_history_append(history, "going");
p_history_append(history, "on");
p_history_append(history, "here");
char *item1 = p_history_previous(history, NULL);
char *item2 = p_history_previous(history, item1);
char *item3 = p_history_previous(history, item2);
assert_string_equals("going", item3);
}
void prev_then_next_returns_empty(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item1 = p_history_previous(history, NULL);
char *item2 = p_history_next(history, item1);
assert_string_equals("", item2);
}
void prev_with_val_then_next_returns_val(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item1 = p_history_previous(history, "Oioi");
char *item2 = p_history_next(history, item1);
assert_string_equals("Oioi", item2);
}
void prev_with_val_then_next_twice_returns_val(void)
{
PHistory history = p_history_new(10);
p_history_append(history, "Hello");
char *item1 = p_history_previous(history, "Oioi");
char *item2 = p_history_next(history, item1);
char *item3 = p_history_next(history, item2);
assert_string_equals("Oioi", item3);
}
void register_prof_history_tests(void)
{
TEST_MODULE("prof_history tests");
TEST(previous_on_empty_returns_current);
TEST(next_on_empty_returns_current);
TEST(previous_once_returns_last);
TEST(previous_twice_when_one_returns_first);
TEST(previous_always_stops_at_first);
TEST(previous_goes_to_correct_element);
TEST(prev_then_next_returns_empty);
TEST(prev_with_val_then_next_returns_val);
TEST(prev_with_val_then_next_twice_returns_val);
}
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