#include "reader.h"
#include "testing.h"

static memory_pool_t pool;

static void input_1234_is_read_as_number_with_expected_value(void)
{
	init_memory_pool(&pool);
	const expression_t *result = read_expression(&pool, "1234", 4);
	ASSERT_NOT_NULL(result);
	ASSERT_TRUE(result->is_number);
	ASSERT_EQUAL(1234, result->number);
}

static void input_4321_is_read_as_number_with_expected_value(void)
{
	init_memory_pool(&pool);
	const expression_t *result = read_expression(&pool, "4321", 4);
	ASSERT_NOT_NULL(result);
	ASSERT_TRUE(result->is_number);
	ASSERT_EQUAL(4321, result->number);
}

static void input_1234_with_len_3_is_read_as_123(void)
{
	init_memory_pool(&pool);
	const expression_t *result = read_expression(&pool, "1234", 3);
	ASSERT_NOT_NULL(result);
	ASSERT_TRUE(result->is_number);
	ASSERT_EQUAL(123, result->number);
}

static void input_1_plus_2_with_no_spaces_is_read_as_an_add_application(void)
{
	init_memory_pool(&pool);
	const expression_t *result = read_expression(&pool, "1+2", 3);
	ASSERT_NOT_NULL(result);
	ASSERT_FALSE(result->is_number);
	ASSERT_EQUAL(OPERATOR_ADD, result->application.operator);
}

int main(void)
{
	TESTING_BEGIN();
	RUN_TEST(input_1234_is_read_as_number_with_expected_value);
	RUN_TEST(input_4321_is_read_as_number_with_expected_value);
	RUN_TEST(input_1234_with_len_3_is_read_as_123);
	RUN_TEST(input_1_plus_2_with_no_spaces_is_read_as_an_add_application);
	TESTING_END();
}