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Handle NULL result from read_expression() in REPL

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This commit is contained in:
Camden Dixie O'Brien
2024-10-24 20:58:08 +01:00
parent 10803109db
commit 9f54c3552b
2 changed files with 29 additions and 0 deletions
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22
tests/repl_tests.c
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@@ -20,6 +20,13 @@ static bool print_called;
static const char *print_output;
static int print_len;
static void reset_fixtures(void)
{
read_called = false;
evaluate_called = false;
print_called = false;
}
static int test_get_byte(void)
{
if (0 == input_len)
@@ -72,6 +79,7 @@ static void set_up_valid_state(void)
static void read_is_called_on_first_line_line_in_input(void)
{
reset_fixtures();
set_up_valid_state();
step_repl(&repl);
ASSERT_TRUE(read_called);
@@ -81,6 +89,7 @@ static void read_is_called_on_first_line_line_in_input(void)
static void read_result_is_passed_to_evaluate(void)
{
reset_fixtures();
set_up_valid_state();
step_repl(&repl);
ASSERT_TRUE(evaluate_called);
@@ -90,6 +99,7 @@ static void read_result_is_passed_to_evaluate(void)
static void result_of_evaluation_is_printed_with_a_newline(void)
{
reset_fixtures();
set_up_valid_state();
step_repl(&repl);
ASSERT_TRUE(print_called);
@@ -99,6 +109,7 @@ static void result_of_evaluation_is_printed_with_a_newline(void)
static void true_is_returned_on_successful_step(void)
{
reset_fixtures();
set_up_valid_state();
const bool result = step_repl(&repl);
ASSERT_TRUE(result);
@@ -106,12 +117,22 @@ static void true_is_returned_on_successful_step(void)
static void false_is_returned_on_end_of_input(void)
{
reset_fixtures();
set_up_valid_state();
input_len = 0;
const bool result = step_repl(&repl);
ASSERT_FALSE(result);
}
static void evaluate_is_not_called_if_read_returns_null(void)
{
reset_fixtures();
set_up_valid_state();
read_result = NULL;
step_repl(&repl);
ASSERT_FALSE(evaluate_called);
}
int main(void)
{
TESTING_BEGIN();
@@ -120,5 +141,6 @@ int main(void)
RUN_TEST(result_of_evaluation_is_printed_with_a_newline);
RUN_TEST(true_is_returned_on_successful_step);
RUN_TEST(false_is_returned_on_end_of_input);
RUN_TEST(evaluate_is_not_called_if_read_returns_null);
TESTING_END();
}