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Handle nesting and subtraction in reader

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This commit is contained in:
Camden Dixie O'Brien
2024-10-24 17:35:42 +01:00
parent 79494cd0ba
commit d4855813a2
3 changed files with 76 additions and 7 deletions
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54
tests/reader_tests.c
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@@ -39,12 +39,66 @@ static void input_1_plus_2_with_no_spaces_is_read_as_an_add_application(void)
ASSERT_EQUAL(OPERATOR_ADD, result->application.operator);
}
static void operands_of_15_plus_54_are_read_as_numbers(void)
{
init_memory_pool(&pool);
const expression_t *result = read_expression(&pool, "15+54", 5);
ASSERT_NOT_NULL(result);
ASSERT_FALSE(result->is_number);
ASSERT_NOT_NULL(result->application.operands[0]);
ASSERT_TRUE(result->application.operands[0]->is_number);
ASSERT_EQUAL(15, result->application.operands[0]->number);
ASSERT_NOT_NULL(result->application.operands[1]);
ASSERT_TRUE(result->application.operands[1]->is_number);
ASSERT_EQUAL(54, result->application.operands[1]->number);
}
static void
input_6_minus_2_with_no_spaces_is_read_as_a_subtract_application(void)
{
init_memory_pool(&pool);
const expression_t *result = read_expression(&pool, "6-2", 3);
ASSERT_NOT_NULL(result);
ASSERT_FALSE(result->is_number);
ASSERT_EQUAL(OPERATOR_SUBTRACT, result->application.operator);
}
static void
input_1_plus_2_plus_3_is_parsed_as_a_right_nested_application(void)
{
init_memory_pool(&pool);
const expression_t *result = read_expression(&pool, "1+2+3", 5);
ASSERT_NOT_NULL(result);
ASSERT_FALSE(result->is_number);
ASSERT_EQUAL(OPERATOR_ADD, result->application.operator);
const expression_t *operand0 = result->application.operands[0];
ASSERT_NOT_NULL(operand0);
ASSERT_TRUE(operand0->is_number);
ASSERT_EQUAL(1, operand0->number);
const expression_t *operand1 = result->application.operands[1];
ASSERT_NOT_NULL(operand1);
ASSERT_FALSE(operand1->is_number);
ASSERT_EQUAL(OPERATOR_ADD, operand1->application.operator);
ASSERT_NOT_NULL(operand1->application.operands[0]);
ASSERT_TRUE(operand1->application.operands[0]->is_number);
ASSERT_EQUAL(2, operand1->application.operands[0]->number);
ASSERT_NOT_NULL(operand1->application.operands[1]);
ASSERT_TRUE(operand1->application.operands[1]->is_number);
ASSERT_EQUAL(3, operand1->application.operands[1]->number);
}
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(operands_of_15_plus_54_are_read_as_numbers);
RUN_TEST(input_1_plus_2_with_no_spaces_is_read_as_an_add_application);
RUN_TEST(
input_6_minus_2_with_no_spaces_is_read_as_a_subtract_application);
RUN_TEST(input_1_plus_2_plus_3_is_parsed_as_a_right_nested_application);
TESTING_END();
}