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ww/lib/log/silent_test.ww
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package log_test;
import log;
import memio;
// The silent logger's callback discards args without touching fmt or
// any sink. Verified indirectly: we wire a memio.stream and never
// pass it to log.silent — but the @test fn calling log.new first
// triggers [[log.ensureinit]] so log.silent is non-nil here. Then
// lprintln(silent, ...) must not crash and the memio sink must stay
// empty (silent has no path to it anyway).
@test fn silentwritesnothing() void = {
let buf: [16]u8;
let mem = memio.fixed(buf[0:16]);
let s = &mem.vt;
let sl = log.new(s); // triggers log.ensureinit; populates log.silent
assert(!(log.silent == nil));
log.lprintln(log.silent, "ignored", 1i64, true);
assert(!(mem.pos != 0));
};
// Same pattern as [[silentwritesnothing]] for the bare-args path.
@test fn silentignoresprintfln() void = {
let buf: [16]u8;
let mem = memio.fixed(buf[0:16]);
let s = &mem.vt;
let sl = log.new(s); // triggers log.ensureinit; populates log.silent
assert(!(log.silent == nil));
log.lprintfln(log.silent, "ignored={}", 1i64);
assert(!(mem.pos != 0));
};