mirror of https://gitee.com/openkylin/nodejs.git
103 lines
3.6 KiB
JavaScript
103 lines
3.6 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const zlib = require('zlib');
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const expectStr = 'abcdefghijklmnopqrstuvwxyz'.repeat(2);
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const expectBuf = Buffer.from(expectStr);
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function createWriter(target, buffer) {
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const writer = { size: 0 };
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const write = () => {
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target.write(Buffer.from([buffer[writer.size++]]), () => {
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if (writer.size < buffer.length) {
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target.flush(write);
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} else {
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target.end();
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}
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});
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};
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write();
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return writer;
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}
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common.expectWarning(
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'DeprecationWarning',
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'zlib.bytesRead is deprecated and will change its meaning in the ' +
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'future. Use zlib.bytesWritten instead.',
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'DEP0108');
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for (const method of [
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['createGzip', 'createGunzip', false],
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['createGzip', 'createUnzip', false],
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['createDeflate', 'createInflate', true],
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['createDeflateRaw', 'createInflateRaw', true],
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['createBrotliCompress', 'createBrotliDecompress', true]
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]) {
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let compWriter;
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let compData = Buffer.alloc(0);
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const comp = zlib[method[0]]();
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comp.on('data', function(d) {
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compData = Buffer.concat([compData, d]);
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assert.strictEqual(this.bytesWritten, compWriter.size,
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`Should get write size on ${method[0]} data.`);
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});
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comp.on('end', common.mustCall(function() {
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assert.strictEqual(this.bytesWritten, compWriter.size,
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`Should get write size on ${method[0]} end.`);
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assert.strictEqual(this.bytesWritten, expectStr.length,
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`Should get data size on ${method[0]} end.`);
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{
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let decompWriter;
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let decompData = Buffer.alloc(0);
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const decomp = zlib[method[1]]();
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decomp.on('data', function(d) {
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decompData = Buffer.concat([decompData, d]);
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assert.strictEqual(this.bytesWritten, decompWriter.size,
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`Should get write size on ${method[0]}/` +
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`${method[1]} data.`);
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});
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decomp.on('end', common.mustCall(function() {
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assert.strictEqual(this.bytesWritten, compData.length,
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`Should get compressed size on ${method[0]}/` +
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`${method[1]} end.`);
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assert.strictEqual(decompData.toString(), expectStr,
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`Should get original string on ${method[0]}/` +
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`${method[1]} end.`);
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}));
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decompWriter = createWriter(decomp, compData);
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}
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// Some methods should allow extra data after the compressed data
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if (method[2]) {
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const compDataExtra = Buffer.concat([compData, Buffer.from('extra')]);
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let decompWriter;
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let decompData = Buffer.alloc(0);
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const decomp = zlib[method[1]]();
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decomp.on('data', function(d) {
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decompData = Buffer.concat([decompData, d]);
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assert.strictEqual(this.bytesWritten, decompWriter.size,
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`Should get write size on ${method[0]}/` +
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`${method[1]} data.`);
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});
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decomp.on('end', common.mustCall(function() {
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assert.strictEqual(this.bytesWritten, compData.length,
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`Should get compressed size on ${method[0]}/` +
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`${method[1]} end.`);
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// Checking legacy name.
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assert.strictEqual(this.bytesWritten, this.bytesRead);
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assert.strictEqual(decompData.toString(), expectStr,
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`Should get original string on ${method[0]}/` +
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`${method[1]} end.`);
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}));
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decompWriter = createWriter(decomp, compDataExtra);
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}
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}));
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compWriter = createWriter(comp, expectBuf);
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}
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