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/* 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 } = ChromeUtils.importESModule(
"resource://gre/modules/FileUtils.sys.mjs"
);
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(async function test_arrow_urls() {
const { path } = createTemporaryFile(".js");
const url = "resource://gre/modules/XPIProvider.jsm -> file://" + path;
await IOUtils.writeUTF8(path, TEST_CONTENT);
const { content } = await DevToolsUtils.fetch(url);
deepEqual(content, TEST_CONTENT, "The file contents were correctly read.");
});
/**
* Tests that empty files are read correctly.
*/
add_task(async function test_empty() {
const { path } = createTemporaryFile();
const { content } = await DevToolsUtils.fetch("file://" + path);
deepEqual(content, "", "The empty file was read correctly.");
});
/**
* Tests that UTF-8 encoded files are correctly read.
*/
add_task(async function test_encoding_utf8() {
const { path } = createTemporaryFile();
await IOUtils.write(path, UTF8_TEST_BUFFER);
const { content } = await 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(async function test_encoding_iso_8859_1() {
const { path } = createTemporaryFile();
await IOUtils.write(path, ISO_8859_1_BUFFER);
const { content } = await 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(async function test_missing() {
await DevToolsUtils.fetch("file:///file/not/found.right").then(
result => {
info(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(async function test_schemeless_files() {
const { path } = createTemporaryFile();
await IOUtils.writeUTF8(path, TEST_CONTENT);
const { content } = await 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) {
const name = "test_fetch-file-" + Math.random() + (extension || "");
const file = FileUtils.getFile("TmpD", [name]);
file.create(Ci.nsIFile.NORMAL_FILE_TYPE, parseInt("0755", 8));
registerCleanupFunction(() => {
file.remove(false);
});
return file;
}
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