node/test/parallel/test-zlib-zstd-pledged-src-...

38 lines
1.3 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const zlib = require('zlib');
function compressWithPledgedSrcSize({ pledgedSrcSize, actualSrcSize }) {
return new Promise((resolve, reject) => {
const compressor = zlib.createZstdCompress({ pledgedSrcSize });
compressor.on('error', (e) => {
reject(e);
});
compressor.on('end', resolve);
compressor.write('x'.repeat(actualSrcSize), () => {
compressor.end();
compressor.resume();
});
}).then(() => {
// Compression should only succeed if sizes match
assert.strictEqual(pledgedSrcSize, actualSrcSize);
}, (error) => {
assert.strictEqual(error.code, 'ZSTD_error_srcSize_wrong');
// Size error should only happen when sizes do not match
assert.notStrictEqual(pledgedSrcSize, actualSrcSize);
}).then(common.mustCall());
}
compressWithPledgedSrcSize({ pledgedSrcSize: 0, actualSrcSize: 0 });
compressWithPledgedSrcSize({ pledgedSrcSize: 0, actualSrcSize: 42 });
compressWithPledgedSrcSize({ pledgedSrcSize: 13, actualSrcSize: 42 });
compressWithPledgedSrcSize({ pledgedSrcSize: 42, actualSrcSize: 0 });
compressWithPledgedSrcSize({ pledgedSrcSize: 42, actualSrcSize: 13 });
compressWithPledgedSrcSize({ pledgedSrcSize: 42, actualSrcSize: 42 });