Test name	Duration	Status
test_fn_substring_1	3 ms	Passed
test_fn_substring_10	2 ms	Passed
test_fn_substring_11	1 ms	Passed
test_fn_substring_12	1 ms	Passed
test_fn_substring_13	1 ms	Passed
test_fn_substring_14	2 ms	Passed
test_fn_substring_15	1 ms	Passed
test_fn_substring_16	1 ms	Passed
test_fn_substring_17	1 ms	Passed
test_fn_substring_18	2 ms	Passed
test_fn_substring_19	1 ms	Passed
test_fn_substring_2	2 ms	Passed
test_fn_substring_20	1 ms	Passed
test_fn_substring_21	1 ms	Passed
test_fn_substring_3	1 ms	Passed
test_fn_substring_4	1 ms	Passed
test_fn_substring_5	1 ms	Passed
test_fn_substring_6	1 ms	Passed
test_fn_substring_7	2 ms	Passed
test_fn_substring_8	1 ms	Passed
test_fn_substring_9	1 ms	Passed