tests: make error handling the same as the main function (#15825)

vlib/rand/random_bytes_test.v

@@ -1,6 +1,6 @@
 import rand
 
-fn test_rand_bytes() ? {
+fn test_rand_bytes() {
 	mut randoms := []string{}
 	for i in 0 .. 100 {
 		x := rand.bytes(i)?.hex()
@@ -21,7 +21,7 @@ fn test_rand_bytes() ? {
 	dump(differences)
 }
 
-fn test_prng_rand_bytes() ? {
+fn test_prng_rand_bytes() {
 	mut randoms := []string{}
 	mut rng := rand.get_current_rng()
 	for i in 0 .. 100 {
@@ -43,7 +43,7 @@ fn test_prng_rand_bytes() ? {
 	dump(differences)
 }
 
-fn test_rand_read() ? {
+fn test_rand_read() {
 	max := 50
 	mut a := []u8{len: max}
 	mut differences := 0
@@ -72,7 +72,7 @@ fn test_rand_read() ? {
 	assert differences > 11700 // normally around 11758
 }
 
-fn test_prng_rand_read() ? {
+fn test_prng_rand_read() {
 	max := 50
 	mut a := []u8{len: max}
 	mut differences := 0

vlib/rand/random_numbers_test.v

@@ -354,7 +354,7 @@ fn test_shuffle() {
 	}
 }
 
-fn test_shuffle_partial() ? {
+fn test_shuffle_partial() {
 	mut a := [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
 	mut b := a.clone()
 
@@ -382,7 +382,7 @@ fn test_shuffle_clone() {
 	}
 }
 
-fn test_choose() ? {
+fn test_choose() {
 	lengths := [1, 3, 4, 5, 6, 7]
 	a := ['one', 'two', 'three', 'four', 'five', 'six', 'seven']
 	for length in lengths {