41 lines
615 B
V
41 lines
615 B
V
module io
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struct Buf {
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pub:
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bytes []byte
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mut:
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i int
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}
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fn (mut b Buf) read(mut buf []byte) ?int {
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if !(b.i < b.bytes.len) {
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return eof
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}
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n := copy(buf, b.bytes[b.i..b.bytes.len])
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b.i += n
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return n
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}
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fn test_read_all() {
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buf := Buf{
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bytes: '123'.repeat(10).bytes()
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}
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res := read_all(buf) or {
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assert false
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''.bytes()
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}
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assert res == '123'.repeat(10).bytes()
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}
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/*
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TODO: This test failed by a bug of read_all
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fn test_read_all_huge() {
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buf := Buf{bytes: "123".repeat(100000).bytes()}
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res := read_all(buf) or {
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assert false
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"".bytes()
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}
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assert res == "123".repeat(100000).bytes()
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}
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*/
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