f5a6e50b0a
These changes restore the previous behavior in which the data is decoded according to a locale specific default charset if the UTF-8 conversion fails. This allows the method to properly decode both UTF-8 data and data that has been encoded with the locale default charset (ISO-8859-1 in most cases) without any charset hints from the source. The conversion is now a two step process: 1. Convert the stream content to a string using the locale specific encoding. 2. Try reinterpret the data according to UTF-8 rules. If it succeeds, return the conversion result. If it fails, return the original string.
105 lines
3.2 KiB
JavaScript
105 lines
3.2 KiB
JavaScript
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
|
||
/* Any copyright is dedicated to the Public Domain.
|
||
http://creativecommons.org/publicdomain/zero/1.0/ */
|
||
"use strict";
|
||
|
||
// Tests for DevToolsUtils.fetch on file:// URI's.
|
||
|
||
const { FileUtils } = Cu.import("resource://gre/modules/FileUtils.jsm");
|
||
const { OS } = Cu.import("resource://gre/modules/osfile.jsm", {});
|
||
|
||
const TEST_CONTENT = "aéd";
|
||
|
||
// The TEST_CONTENT encoded as UTF-8.
|
||
const UTF8_TEST_BUFFER = new Uint8Array([0x61, 0xc3, 0xa9, 0x64]);
|
||
|
||
// The TEST_CONTENT encoded as ISO 8859-1.
|
||
const ISO_8859_1_BUFFER = new Uint8Array([0x61, 0xe9, 0x64]);
|
||
|
||
/**
|
||
* Tests that URLs with arrows pointing to an actual source are handled properly
|
||
* (bug 808960). For example 'resource://gre/modules/XPIProvider.jsm ->
|
||
* file://l10n.js' should load 'file://l10n.js'.
|
||
*/
|
||
add_task(function* test_arrow_urls() {
|
||
let { path } = createTemporaryFile(".js");
|
||
let url = "resource://gre/modules/XPIProvider.jsm -> file://" + path;
|
||
|
||
yield OS.File.writeAtomic(path, TEST_CONTENT, { encoding: "utf-8" });
|
||
let { content } = yield DevToolsUtils.fetch(url);
|
||
|
||
deepEqual(content, TEST_CONTENT, "The file contents were correctly read.");
|
||
});
|
||
|
||
/**
|
||
* Tests that empty files are read correctly.
|
||
*/
|
||
add_task(function* test_empty() {
|
||
let { path } = createTemporaryFile();
|
||
let { content } = yield DevToolsUtils.fetch("file://" + path);
|
||
deepEqual(content, "", "The empty file was read correctly.");
|
||
});
|
||
|
||
/**
|
||
* Tests that UTF-8 encoded files are correctly read.
|
||
*/
|
||
add_task(function* test_encoding_utf8() {
|
||
let { path } = createTemporaryFile();
|
||
yield OS.File.writeAtomic(path, UTF8_TEST_BUFFER);
|
||
|
||
let { content } = yield DevToolsUtils.fetch(path);
|
||
deepEqual(content, TEST_CONTENT,
|
||
"The UTF-8 encoded file was correctly read.");
|
||
});
|
||
|
||
/**
|
||
* Tests that ISO 8859-1 (Latin-1) encoded files are correctly read.
|
||
*/
|
||
add_task(function* test_encoding_iso_8859_1() {
|
||
let { path } = createTemporaryFile();
|
||
yield OS.File.writeAtomic(path, ISO_8859_1_BUFFER);
|
||
|
||
let { content } = yield DevToolsUtils.fetch(path);
|
||
deepEqual(content, TEST_CONTENT,
|
||
"The ISO 8859-1 encoded file was correctly read.");
|
||
});
|
||
|
||
/**
|
||
* Test that non-existent files are handled correctly.
|
||
*/
|
||
add_task(function* test_missing() {
|
||
yield DevToolsUtils.fetch("file:///file/not/found.right").then(result => {
|
||
do_print(result);
|
||
ok(false, "Fetch resolved unexpectedly when the file was not found.");
|
||
}, () => {
|
||
ok(true, "Fetch rejected as expected because the file was not found.");
|
||
});
|
||
});
|
||
|
||
/**
|
||
* Test that URLs without file:// scheme work.
|
||
*/
|
||
add_task(function* test_schemeless_files() {
|
||
let { path } = createTemporaryFile();
|
||
|
||
yield OS.File.writeAtomic(path, TEST_CONTENT, { encoding: "utf-8" });
|
||
|
||
let { content } = yield DevToolsUtils.fetch(path);
|
||
deepEqual(content, TEST_CONTENT, "The content was correct.");
|
||
});
|
||
|
||
/**
|
||
* Creates a temporary file that is removed after the test completes.
|
||
*/
|
||
function createTemporaryFile(extension) {
|
||
let name = "test_fetch-file-" + Math.random() + (extension || "");
|
||
let file = FileUtils.getFile("TmpD", [name]);
|
||
file.create(Ci.nsIFile.NORMAL_FILE_TYPE, parseInt("0755", 8));
|
||
|
||
do_register_cleanup(() => {
|
||
file.remove(false);
|
||
});
|
||
|
||
return file;
|
||
}
|