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io: make buffered_writer_test.v more robust

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This commit is contained in:
Delyan Angelov 2024-09-26 08:45:13 +03:00
parent 9bc975eb07
commit e03bd3f803
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GPG Key ID: 66886C0F12D595ED
1 changed files with 6 additions and 2 deletions
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8
vlib/io/buffered_writer_test.v
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@ -1,6 +1,10 @@
import io import io
import rand import rand
fn small_amount() int {
return int(rand.u8()) + 1
}
struct ArrayWriter { struct ArrayWriter {
pub mut: pub mut:
result []u8 result []u8
@ -56,7 +60,7 @@ fn test_write() {
written := write_random_data(mut aw, mut bw, 65536)! written := write_random_data(mut aw, mut bw, 65536)!
// now exceed buffer capacity by a little // now exceed buffer capacity by a little
little := rand.u8() little := small_amount()
excess := bw.available() + little excess := bw.available() + little
excess_data := rand.bytes(excess)! excess_data := rand.bytes(excess)!
w := bw.write(excess_data)! w := bw.write(excess_data)!
@ -70,7 +74,7 @@ fn test_write_big() {
max := 65536 max := 65536
mut bw := io.new_buffered_writer(writer: aw, cap: max)! mut bw := io.new_buffered_writer(writer: aw, cap: max)!
more_than_max := max + rand.u8() more_than_max := max + small_amount()
big_source := rand.bytes(more_than_max)! big_source := rand.bytes(more_than_max)!
w := bw.write(big_source)! w := bw.write(big_source)!
assert w == more_than_max assert w == more_than_max