diff options
Diffstat (limited to 'addon-sdk/source/test/test-text-streams.js')
-rw-r--r-- | addon-sdk/source/test/test-text-streams.js | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/addon-sdk/source/test/test-text-streams.js b/addon-sdk/source/test/test-text-streams.js deleted file mode 100644 index c7691fd54..000000000 --- a/addon-sdk/source/test/test-text-streams.js +++ /dev/null @@ -1,154 +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 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 text-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 = file.open(fname, "w"); - assert.ok(!stream.closed, "stream.closed after open should be false"); - stream.write(str); - stream.close(); - assert.ok(stream.closed, "stream.closed after close should be true"); - assert.throws(() => stream.close(), - STREAM_CLOSED_ERROR, - "stream.close after already closed should raise error"); - assert.throws(() => stream.write("This shouldn't be written!"), - STREAM_CLOSED_ERROR, - "stream.write after close should raise error"); - - // ... and read it. - stream = file.open(fname); - assert.ok(!stream.closed, "stream.closed after open should be false"); - 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.closed after close should be true"); - assert.throws(() => stream.close(), - STREAM_CLOSED_ERROR, - "stream.close after already closed should raise error"); - assert.throws(() => stream.read(), - STREAM_CLOSED_ERROR, - "stream.read after close should raise error"); - - // Write a big string many times the size of the stream's buffer and read it. - // Since it comes after the previous test, this also ensures that the file is - // truncated when it's opened for writing. - str = ""; - let bufLen = BUFFER_BYTE_LEN; - let fileSize = bufLen * 10; - for (let i = 0; i < fileSize; i++) - str += i % 10; - stream = file.open(fname, "w"); - stream.write(str); - stream.close(); - stream = file.open(fname); - assert.equal(stream.read(), str, - "stream.read should return string written"); - stream.close(); - - // The same, but write and read in chunks. - stream = file.open(fname, "w"); - 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 = file.open(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"); - - // Read the same file, passing in strange numbers of bytes to read. - stream = file.open(fname); - assert.equal(stream.read(fileSize * 100), str, - "stream.read with big byte length should return string " + - "written"); - stream.close(); - - stream = file.open(fname); - assert.equal(stream.read(0), "", - "string.read with zero byte length should return empty " + - "string"); - stream.close(); - - stream = file.open(fname); - assert.equal(stream.read(-1), "", - "string.read with negative byte length should return " + - "empty string"); - stream.close(); - - file.remove(fname); -}; - -exports.testWriteAsync = function (assert, done) { - let fname = dataFileFilename(); - let str = "exports.testWriteAsync data!"; - let stream = file.open(fname, "w"); - assert.ok(!stream.closed, "stream.closed after open should be false"); - - // Write. - stream.writeAsync(str, function (err) { - assert.equal(this, stream, "|this| should be the stream object"); - assert.equal(err, undefined, - "stream.writeAsync should not cause error"); - assert.ok(stream.closed, "stream.closed after write should be true"); - assert.throws(() => stream.close(), - STREAM_CLOSED_ERROR, - "stream.close after already closed should raise error"); - assert.throws(() => stream.writeAsync("This shouldn't work!"), - STREAM_CLOSED_ERROR, - "stream.writeAsync after close should raise error"); - - // Read. - stream = file.open(fname, "r"); - assert.ok(!stream.closed, "stream.closed after open should be false"); - let readStr = stream.read(); - assert.equal(readStr, str, - "string.read should yield string written"); - stream.close(); - file.remove(fname); - done(); - }); -}; - -exports.testUnload = function (assert) { - let loader = Loader(module); - let file = loader.require("sdk/io/file"); - - let filename = dataFileFilename("temp"); - let stream = file.open(filename, "w"); - - 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-text-streams-data"); -} - -require('sdk/test').run(exports); |