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"use strict";
const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
function run_test() {
do_test_pending();
run_next_test();
}
/**
* Test to ensure that {bytes:} in options to |write| is correctly
* preserved.
*/
add_task(async function test_bytes() {
let path = OS.Path.join(
OS.Constants.Path.tmpDir,
"test_osfile_async_bytes.tmp"
);
let file = await OS.File.open(path, { trunc: true, read: true, write: true });
try {
try {
// 1. Test write, by supplying {bytes:} options smaller than the actual
// buffer.
await file.write(new Uint8Array(2048), { bytes: 1024 });
Assert.equal((await file.stat()).size, 1024);
// 2. Test that passing nullish values for |options| still works.
await file.setPosition(0, OS.File.POS_END);
await file.write(new Uint8Array(1024), null);
await file.write(new Uint8Array(1024), undefined);
Assert.equal((await file.stat()).size, 3072);
} finally {
await file.close();
}
} finally {
await OS.File.remove(path);
}
});
add_task(do_test_finished);
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