From d25e11bee6ca5ca523884da132d18e1400e077b9 Mon Sep 17 00:00:00 2001 From: Minteck Date: Tue, 24 Aug 2021 14:41:48 +0200 Subject: Initial commit --- node_modules/fd-slicer/test/test.js | 350 ++++++++++++++++++++++++++++++++++++ 1 file changed, 350 insertions(+) create mode 100644 node_modules/fd-slicer/test/test.js (limited to 'node_modules/fd-slicer/test/test.js') diff --git a/node_modules/fd-slicer/test/test.js b/node_modules/fd-slicer/test/test.js new file mode 100644 index 0000000..d05ab00 --- /dev/null +++ b/node_modules/fd-slicer/test/test.js @@ -0,0 +1,350 @@ +var fdSlicer = require('../'); +var fs = require('fs'); +var crypto = require('crypto'); +var path = require('path'); +var streamEqual = require('stream-equal'); +var assert = require('assert'); +var Pend = require('pend'); +var StreamSink = require('streamsink'); + +var describe = global.describe; +var it = global.it; +var before = global.before; +var beforeEach = global.beforeEach; +var after = global.after; + +var testBlobFile = path.join(__dirname, "test-blob.bin"); +var testBlobFileSize = 20 * 1024 * 1024; +var testOutBlobFile = path.join(__dirname, "test-blob-out.bin"); + +describe("FdSlicer", function() { + before(function(done) { + var out = fs.createWriteStream(testBlobFile); + for (var i = 0; i < testBlobFileSize / 1024; i += 1) { + out.write(crypto.pseudoRandomBytes(1024)); + } + out.end(); + out.on('close', done); + }); + beforeEach(function() { + try { + fs.unlinkSync(testOutBlobFile); + } catch (err) { + } + }); + after(function() { + try { + fs.unlinkSync(testBlobFile); + fs.unlinkSync(testOutBlobFile); + } catch (err) { + } + }); + it("reads a 20MB file (autoClose on)", function(done) { + fs.open(testBlobFile, 'r', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var actualStream = slicer.createReadStream(); + var expectedStream = fs.createReadStream(testBlobFile); + + var pend = new Pend(); + pend.go(function(cb) { + slicer.on('close', cb); + }); + pend.go(function(cb) { + streamEqual(expectedStream, actualStream, function(err, equal) { + if (err) return done(err); + assert.ok(equal); + cb(); + }); + }); + pend.wait(done); + }); + }); + it("reads 4 chunks simultaneously", function(done) { + fs.open(testBlobFile, 'r', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd); + var actualPart1 = slicer.createReadStream({start: testBlobFileSize * 0/4, end: testBlobFileSize * 1/4}); + var actualPart2 = slicer.createReadStream({start: testBlobFileSize * 1/4, end: testBlobFileSize * 2/4}); + var actualPart3 = slicer.createReadStream({start: testBlobFileSize * 2/4, end: testBlobFileSize * 3/4}); + var actualPart4 = slicer.createReadStream({start: testBlobFileSize * 3/4, end: testBlobFileSize * 4/4}); + var expectedPart1 = slicer.createReadStream({start: testBlobFileSize * 0/4, end: testBlobFileSize * 1/4}); + var expectedPart2 = slicer.createReadStream({start: testBlobFileSize * 1/4, end: testBlobFileSize * 2/4}); + var expectedPart3 = slicer.createReadStream({start: testBlobFileSize * 2/4, end: testBlobFileSize * 3/4}); + var expectedPart4 = slicer.createReadStream({start: testBlobFileSize * 3/4, end: testBlobFileSize * 4/4}); + var pend = new Pend(); + pend.go(function(cb) { + streamEqual(expectedPart1, actualPart1, function(err, equal) { + assert.ok(equal); + cb(err); + }); + }); + pend.go(function(cb) { + streamEqual(expectedPart2, actualPart2, function(err, equal) { + assert.ok(equal); + cb(err); + }); + }); + pend.go(function(cb) { + streamEqual(expectedPart3, actualPart3, function(err, equal) { + assert.ok(equal); + cb(err); + }); + }); + pend.go(function(cb) { + streamEqual(expectedPart4, actualPart4, function(err, equal) { + assert.ok(equal); + cb(err); + }); + }); + pend.wait(function(err) { + if (err) return done(err); + fs.close(fd, done); + }); + }); + }); + + it("writes a 20MB file (autoClose on)", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var actualStream = slicer.createWriteStream(); + var inStream = fs.createReadStream(testBlobFile); + + slicer.on('close', function() { + var expected = fs.createReadStream(testBlobFile); + var actual = fs.createReadStream(testOutBlobFile); + + streamEqual(expected, actual, function(err, equal) { + if (err) return done(err); + assert.ok(equal); + done(); + }); + }); + inStream.pipe(actualStream); + }); + }); + + it("writes 4 chunks simultaneously", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd); + var actualPart1 = slicer.createWriteStream({start: testBlobFileSize * 0/4}); + var actualPart2 = slicer.createWriteStream({start: testBlobFileSize * 1/4}); + var actualPart3 = slicer.createWriteStream({start: testBlobFileSize * 2/4}); + var actualPart4 = slicer.createWriteStream({start: testBlobFileSize * 3/4}); + var in1 = fs.createReadStream(testBlobFile, {start: testBlobFileSize * 0/4, end: testBlobFileSize * 1/4}); + var in2 = fs.createReadStream(testBlobFile, {start: testBlobFileSize * 1/4, end: testBlobFileSize * 2/4}); + var in3 = fs.createReadStream(testBlobFile, {start: testBlobFileSize * 2/4, end: testBlobFileSize * 3/4}); + var in4 = fs.createReadStream(testBlobFile, {start: testBlobFileSize * 3/4, end: testBlobFileSize * 4/4}); + var pend = new Pend(); + pend.go(function(cb) { + actualPart1.on('finish', cb); + }); + pend.go(function(cb) { + actualPart2.on('finish', cb); + }); + pend.go(function(cb) { + actualPart3.on('finish', cb); + }); + pend.go(function(cb) { + actualPart4.on('finish', cb); + }); + in1.pipe(actualPart1); + in2.pipe(actualPart2); + in3.pipe(actualPart3); + in4.pipe(actualPart4); + pend.wait(function() { + fs.close(fd, function(err) { + if (err) return done(err); + var expected = fs.createReadStream(testBlobFile); + var actual = fs.createReadStream(testOutBlobFile); + streamEqual(expected, actual, function(err, equal) { + if (err) return done(err); + assert.ok(equal); + done(); + }); + }); + }); + }); + }); + + it("throws on invalid ref", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + assert.throws(function() { + slicer.unref(); + }, /invalid unref/); + fs.close(fd, done); + }); + }); + + it("write stream emits error when max size exceeded", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var ws = slicer.createWriteStream({start: 0, end: 1000}); + ws.on('error', function(err) { + assert.strictEqual(err.code, 'ETOOBIG'); + slicer.on('close', done); + }); + ws.end(new Buffer(1001)); + }); + }); + + it("write stream does not emit error when max size not exceeded", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var ws = slicer.createWriteStream({end: 1000}); + slicer.on('close', done); + ws.end(new Buffer(1000)); + }); + }); + + it("write stream start and end work together", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var ws = slicer.createWriteStream({start: 1, end: 1000}); + ws.on('error', function(err) { + assert.strictEqual(err.code, 'ETOOBIG'); + slicer.on('close', done); + }); + ws.end(new Buffer(1000)); + }); + }); + + it("write stream emits progress events", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var ws = slicer.createWriteStream(); + var progressEventCount = 0; + var prevBytesWritten = 0; + ws.on('progress', function() { + progressEventCount += 1; + assert.ok(ws.bytesWritten > prevBytesWritten); + prevBytesWritten = ws.bytesWritten; + }); + slicer.on('close', function() { + assert.ok(progressEventCount > 5); + done(); + }); + for (var i = 0; i < 10; i += 1) { + ws.write(new Buffer(16 * 1024 * 2)); + } + ws.end(); + }); + }); + + it("write stream unrefs when destroyed", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var ws = slicer.createWriteStream(); + slicer.on('close', done); + ws.write(new Buffer(1000)); + ws.destroy(); + }); + }); + + it("read stream unrefs when destroyed", function(done) { + fs.open(testBlobFile, 'r', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd, {autoClose: true}); + var rs = slicer.createReadStream(); + rs.on('error', function(err) { + assert.strictEqual(err.message, "stream destroyed"); + slicer.on('close', done); + }); + rs.destroy(); + }); + }); + + it("fdSlicer.read", function(done) { + fs.open(testBlobFile, 'r', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd); + var outBuf = new Buffer(1024); + slicer.read(outBuf, 0, 10, 0, function(err, bytesRead, buf) { + assert.strictEqual(bytesRead, 10); + fs.close(fd, done); + }); + }); + }); + + it("fdSlicer.write", function(done) { + fs.open(testOutBlobFile, 'w', function(err, fd) { + if (err) return done(err); + var slicer = fdSlicer.createFromFd(fd); + slicer.write(new Buffer("blah\n"), 0, 5, 0, function() { + if (err) return done(err); + fs.close(fd, done); + }); + }); + }); +}); + +describe("BufferSlicer", function() { + it("invalid ref", function() { + var slicer = fdSlicer.createFromBuffer(new Buffer(16)); + slicer.ref(); + slicer.unref(); + assert.throws(function() { + slicer.unref(); + }, /invalid unref/); + }); + it("read and write", function(done) { + var buf = new Buffer("through the tangled thread the needle finds its way"); + var slicer = fdSlicer.createFromBuffer(buf); + var outBuf = new Buffer(1024); + slicer.read(outBuf, 10, 11, 8, function(err) { + if (err) return done(err); + assert.strictEqual(outBuf.toString('utf8', 10, 21), "the tangled"); + slicer.write(new Buffer("derp"), 0, 4, 7, function(err) { + if (err) return done(err); + assert.strictEqual(buf.toString('utf8', 7, 19), "derp tangled"); + done(); + }); + }); + }); + it("createReadStream", function(done) { + var str = "I never conquered rarely came, 16 just held such better days"; + var buf = new Buffer(str); + var slicer = fdSlicer.createFromBuffer(buf); + var inStream = slicer.createReadStream(); + var sink = new StreamSink(); + inStream.pipe(sink); + sink.on('finish', function() { + assert.strictEqual(sink.toString(), str); + inStream.destroy(); + done(); + }); + }); + it("createWriteStream exceed buffer size", function(done) { + var slicer = fdSlicer.createFromBuffer(new Buffer(4)); + var outStream = slicer.createWriteStream(); + outStream.on('error', function(err) { + assert.strictEqual(err.code, 'ETOOBIG'); + done(); + }); + outStream.write("hi!\n"); + outStream.write("it warked\n"); + outStream.end(); + }); + it("createWriteStream ok", function(done) { + var buf = new Buffer(1024); + var slicer = fdSlicer.createFromBuffer(buf); + var outStream = slicer.createWriteStream(); + outStream.on('finish', function() { + assert.strictEqual(buf.toString('utf8', 0, "hi!\nit warked\n".length), "hi!\nit warked\n"); + outStream.destroy(); + done(); + }); + outStream.write("hi!\n"); + outStream.write("it warked\n"); + outStream.end(); + }); +}); -- cgit