diff options
Diffstat (limited to 'addon-sdk/source/test/test-byte-streams.js')
-rw-r--r-- | addon-sdk/source/test/test-byte-streams.js | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/addon-sdk/source/test/test-byte-streams.js b/addon-sdk/source/test/test-byte-streams.js deleted file mode 100644 index 7d45130aa..000000000 --- a/addon-sdk/source/test/test-byte-streams.js +++ /dev/null @@ -1,169 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -const byteStreams = require("sdk/io/byte-streams"); -const file = require("sdk/io/file"); -const { pathFor } = require("sdk/system"); -const { Loader } = require("sdk/test/loader"); - -const STREAM_CLOSED_ERROR = new RegExp("The stream is closed and cannot be used."); - -// This should match the constant of the same name in byte-streams.js. -const BUFFER_BYTE_LEN = 0x8000; - -exports.testWriteRead = function (assert) { - let fname = dataFileFilename(); - - // Write a small string less than the stream's buffer size... - let str = "exports.testWriteRead data!"; - let stream = open(assert, fname, true); - assert.ok(!stream.closed, "stream.closed after open should be false"); - stream.write(str); - stream.close(); - assert.ok(stream.closed, "Stream should be closed after stream.close"); - assert.throws(() => stream.write("This shouldn't be written!"), - STREAM_CLOSED_ERROR, - "stream.write after close should raise error"); - - // ... and read it. - stream = open(assert, fname); - assert.equal(stream.read(), str, - "stream.read should return string written"); - assert.equal(stream.read(), "", - "stream.read at EOS should return empty string"); - stream.close(); - assert.ok(stream.closed, "Stream should be closed after stream.close"); - assert.throws(() => stream.read(), - STREAM_CLOSED_ERROR, - "stream.read after close should raise error"); - - file.remove(fname); -}; - -// Write a big string many times the size of the stream's buffer and read it. -exports.testWriteReadBig = function (assert) { - let str = ""; - let bufLen = BUFFER_BYTE_LEN; - let fileSize = bufLen * 10; - for (let i = 0; i < fileSize; i++) - str += i % 10; - let fname = dataFileFilename(); - let stream = open(assert, fname, true); - stream.write(str); - stream.close(); - stream = open(assert, fname); - assert.equal(stream.read(), str, - "stream.read should return string written"); - stream.close(); - file.remove(fname); -}; - -// The same, but write and read in chunks. -exports.testWriteReadChunks = function (assert) { - let str = ""; - let bufLen = BUFFER_BYTE_LEN; - let fileSize = bufLen * 10; - for (let i = 0; i < fileSize; i++) - str += i % 10; - let fname = dataFileFilename(); - let stream = open(assert, fname, true); - let i = 0; - while (i < str.length) { - // Use a chunk length that spans buffers. - let chunk = str.substr(i, bufLen + 1); - stream.write(chunk); - i += bufLen + 1; - } - stream.close(); - stream = open(assert, fname); - let readStr = ""; - bufLen = BUFFER_BYTE_LEN; - let readLen = bufLen + 1; - do { - var frag = stream.read(readLen); - readStr += frag; - } while (frag); - stream.close(); - assert.equal(readStr, str, - "stream.write and read in chunks should work as expected"); - file.remove(fname); -}; - -exports.testReadLengths = function (assert) { - let fname = dataFileFilename(); - let str = "exports.testReadLengths data!"; - let stream = open(assert, fname, true); - stream.write(str); - stream.close(); - - stream = open(assert, fname); - assert.equal(stream.read(str.length * 1000), str, - "stream.read with big byte length should return string " + - "written"); - stream.close(); - - stream = open(assert, fname); - assert.equal(stream.read(0), "", - "string.read with zero byte length should return empty " + - "string"); - stream.close(); - - stream = open(assert, fname); - assert.equal(stream.read(-1), "", - "string.read with negative byte length should return " + - "empty string"); - stream.close(); - - file.remove(fname); -}; - -exports.testTruncate = function (assert) { - let fname = dataFileFilename(); - let str = "exports.testReadLengths data!"; - let stream = open(assert, fname, true); - stream.write(str); - stream.close(); - - stream = open(assert, fname); - assert.equal(stream.read(), str, - "stream.read should return string written"); - stream.close(); - - stream = open(assert, fname, true); - stream.close(); - - stream = open(assert, fname); - assert.equal(stream.read(), "", - "stream.read after truncate should be empty"); - stream.close(); - - file.remove(fname); -}; - -exports.testUnload = function (assert) { - let loader = Loader(module); - let file = loader.require("sdk/io/file"); - - let filename = dataFileFilename("temp-b"); - let stream = file.open(filename, "wb"); - - loader.unload(); - assert.ok(stream.closed, "Stream should be closed after module unload"); -}; - -// Returns the name of a file that should be used to test writing and reading. -function dataFileFilename() { - return file.join(pathFor("ProfD"), "test-byte-streams-data"); -} - -// Opens and returns the given file and ensures it's of the correct class. -function open(assert, filename, forWriting) { - let stream = file.open(filename, forWriting ? "wb" : "b"); - let klass = forWriting ? "ByteWriter" : "ByteReader"; - assert.ok(stream instanceof byteStreams[klass], - "Opened stream should be a " + klass); - return stream; -} - -require('sdk/test').run(exports); |