diff options
Diffstat (limited to 'deps/node/deps/npm/node_modules/JSONStream/test/gen.js')
-rw-r--r-- | deps/node/deps/npm/node_modules/JSONStream/test/gen.js | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/deps/node/deps/npm/node_modules/JSONStream/test/gen.js b/deps/node/deps/npm/node_modules/JSONStream/test/gen.js deleted file mode 100644 index 75e87d56..00000000 --- a/deps/node/deps/npm/node_modules/JSONStream/test/gen.js +++ /dev/null @@ -1,135 +0,0 @@ -return // dont run this test for now since tape is weird and broken on 0.10 - -var fs = require('fs') -var JSONStream = require('../') -var file = process.argv[2] || '/tmp/JSONStream-test-large.json' -var size = Number(process.argv[3] || 100000) -var tape = require('tape') -// if (process.title !== 'browser') { - tape('out of mem', function (t) { - t.plan(1) - ////////////////////////////////////////////////////// - // Produces a random number between arg1 and arg2 - ////////////////////////////////////////////////////// - var randomNumber = function (min, max) { - var number = Math.floor(Math.random() * (max - min + 1) + min); - return number; - }; - - ////////////////////////////////////////////////////// - // Produces a random string of a length between arg1 and arg2 - ////////////////////////////////////////////////////// - var randomString = function (min, max) { - - // add several spaces to increase chanses of creating 'words' - var chars = ' 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; - var result = ''; - - var randomLength = randomNumber(min, max); - - for (var i = randomLength; i > 0; --i) { - result += chars[Math.round(Math.random() * (chars.length - 1))]; - } - return result; - }; - - ////////////////////////////////////////////////////// - // Produces a random JSON document, as a string - ////////////////////////////////////////////////////// - var randomJsonDoc = function () { - - var doc = { - "CrashOccurenceID": randomNumber(10000, 50000), - "CrashID": randomNumber(1000, 10000), - "SiteName": randomString(10, 25), - "MachineName": randomString(10, 25), - "Date": randomString(26, 26), - "ProcessDuration": randomString(18, 18), - "ThreadIdentityName": null, - "WindowsIdentityName": randomString(15, 40), - "OperatingSystemName": randomString(35, 65), - "DetailedExceptionInformation": randomString(100, 800) - }; - - doc = JSON.stringify(doc); - doc = doc.replace(/\,/g, ',\n'); // add new lines after each attribute - return doc; - }; - - ////////////////////////////////////////////////////// - // generates test data - ////////////////////////////////////////////////////// - var generateTestData = function (cb) { - - console.log('generating large data file...'); - - var stream = fs.createWriteStream(file, { - encoding: 'utf8' - }); - - var i = 0; - var max = size; - var writing = false - var split = ',\n'; - var doc = randomJsonDoc(); - stream.write('['); - - function write () { - if(writing) return - writing = true - while(++i < max) { - if(Math.random() < 0.001) - console.log('generate..', i + ' / ' + size) - if(!stream.write(doc + split)) { - writing = false - return stream.once('drain', write) - } - } - stream.write(doc + ']') - stream.end(); - console.log('END') - } - write() - stream.on('close', cb) - }; - - ////////////////////////////////////////////////////// - // Shows that parsing 100000 instances using JSONStream fails - // - // After several seconds, you will get this crash - // FATAL ERROR: JS Allocation failed - process out of memory - ////////////////////////////////////////////////////// - var testJSONStreamParse_causesOutOfMem = function (done) { - var items = 0 - console.log('parsing data files using JSONStream...'); - - var parser = JSONStream.parse([true]); - var stream = fs.createReadStream(file); - stream.pipe(parser); - - parser.on('data', function (data) { - items++ - if(Math.random() < 0.01) console.log(items, '...') - }); - - parser.on('end', function () { - t.equal(items, size) - }); - - }; - - ////////////////////////////////////////////////////// - // main - ////////////////////////////////////////////////////// - - fs.stat(file, function (err, stat) { - console.log(stat) - if(err) - generateTestData(testJSONStreamParse_causesOutOfMem); - else - testJSONStreamParse_causesOutOfMem() - }) - - }) - -// } |