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68 lines
2.0 KiB
68 lines
2.0 KiB
var BlockStream = require("dropper")
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var blockSizes = [16, 25, 1024]
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, writeSizes = [4, 8, 15, 16, 17, 64, 100]
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, writeCounts = [1, 10, 100]
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, tap = require("tap")
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writeCounts.forEach(function (writeCount) {
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blockSizes.forEach(function (blockSize) {
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writeSizes.forEach(function (writeSize) {
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tap.test("writeSize=" + writeSize +
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" blockSize="+blockSize +
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" writeCount="+writeCount, function (t) {
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var f = new BlockStream(blockSize, {nopad: true })
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var actualChunks = 0
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var actualBytes = 0
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var timeouts = 0
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f.on("data", function (c) {
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timeouts ++
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actualChunks ++
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actualBytes += c.length
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// make sure that no data gets corrupted, and basic sanity
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var before = c.toString()
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// simulate a slow write operation
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setTimeout(function () {
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timeouts --
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var after = c.toString()
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t.equal(after, before, "should not change data")
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// now corrupt it, to find leaks.
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for (var i = 0; i < c.length; i ++) {
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c[i] = "x".charCodeAt(0)
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}
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}, 100)
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})
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f.on("end", function () {
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// round up to the nearest block size
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var expectChunks = Math.ceil(writeSize * writeCount * 2 / blockSize)
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var expectBytes = writeSize * writeCount * 2
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t.equal(actualBytes, expectBytes,
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"bytes=" + expectBytes + " writeSize=" + writeSize)
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t.equal(actualChunks, expectChunks,
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"chunks=" + expectChunks + " writeSize=" + writeSize)
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// wait for all the timeout checks to finish, then end the test
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setTimeout(function WAIT () {
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if (timeouts > 0) return setTimeout(WAIT)
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t.end()
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}, 100)
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})
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for (var i = 0; i < writeCount; i ++) {
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var a = new Buffer(writeSize);
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for (var j = 0; j < writeSize; j ++) a[j] = "a".charCodeAt(0)
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var b = new Buffer(writeSize);
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for (var j = 0; j < writeSize; j ++) b[j] = "b".charCodeAt(0)
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f.write(a)
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f.write(b)
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}
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f.end()
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})
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}) }) })
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