The Tor Browser: toolkit/modules/tests/xpcshell/test_FileUtils.js@b8a032363ba2 (annotated)

toolkit/modules/tests/xpcshell/test_FileUtils.js@b8a032363ba2 (annotated)

toolkit/modules/tests/xpcshell/test_FileUtils.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 Components.utils.import("resource://gre/modules/FileUtils.jsm");
 function do_check_throws(f, result, stack) {
   if (!stack)
     stack = Components.stack.caller;
   try {
     f();
   } catch (exc) {
     if (exc.result == result)
       return;
     do_throw("expected result " + result + ", caught " + exc, stack);
   }
   do_throw("expected result " + result + ", none thrown", stack);
 }
 const gProfD = do_get_profile();
 add_test(function test_getFile() {
   let file = FileUtils.getFile("ProfD", ["foobar"]);
   do_check_true(file instanceof Components.interfaces.nsIFile);
   do_check_false(file.exists());
   let other = gProfD.clone();
   other.append("foobar");
   do_check_true(file.equals(other));
   run_next_test();
 });
 add_test(function test_getFile_nonexistentDir() {
   do_check_throws(function () {
     let file = FileUtils.getFile("NonexistentD", ["foobar"]);
   }, Components.results.NS_ERROR_FAILURE);
   run_next_test();
 });
 add_test(function test_getFile_createDirs() {
   let file = FileUtils.getFile("ProfD", ["a", "b", "foobar"]);
   do_check_true(file instanceof Components.interfaces.nsIFile);
   do_check_false(file.exists());
   let other = gProfD.clone();
   other.append("a");
   do_check_true(other.isDirectory());
   other.append("b");
   do_check_true(other.isDirectory());
   other.append("foobar");
   do_check_true(file.equals(other));
   run_next_test();
 });
 add_test(function test_getDir() {
   let dir = FileUtils.getDir("ProfD", ["foodir"]);
   do_check_true(dir instanceof Components.interfaces.nsIFile);
   do_check_false(dir.exists());
   let other = gProfD.clone();
   other.append("foodir");
   do_check_true(dir.equals(other));
   run_next_test();
 });
 add_test(function test_getDir_nonexistentDir() {
   do_check_throws(function () {
     let file = FileUtils.getDir("NonexistentD", ["foodir"]);
   }, Components.results.NS_ERROR_FAILURE);
   run_next_test();
 });
 add_test(function test_getDir_shouldCreate() {
   let dir = FileUtils.getDir("ProfD", ["c", "d", "foodir"], true);
   do_check_true(dir instanceof Components.interfaces.nsIFile);
   do_check_true(dir.exists());
   let other = gProfD.clone();
   other.append("c");
   do_check_true(other.isDirectory());
   other.append("d");
   do_check_true(other.isDirectory());
   other.append("foodir");
   do_check_true(dir.equals(other));
   run_next_test();
 });
 let openFileOutputStream_defaultFlags = function (aKind, aFileName) {
   let file = FileUtils.getFile("ProfD", [aFileName]);
   let fos;
   do_check_true(aKind == "atomic" || aKind == "safe" || aKind == "");
   if (aKind == "atomic") {
     fos = FileUtils.openAtomicFileOutputStream(file);
   } else if (aKind == "safe") {
     fos = FileUtils.openSafeFileOutputStream(file);
   } else {
     fos = FileUtils.openFileOutputStream(file);
   }
   do_check_true(fos instanceof Components.interfaces.nsIFileOutputStream);
   if (aKind == "atomic" || aKind == "safe") {
     do_check_true(fos instanceof Components.interfaces.nsISafeOutputStream);
   }
   // FileUtils.openFileOutputStream or FileUtils.openAtomicFileOutputStream()
   // or FileUtils.openSafeFileOutputStream() opens the stream with DEFER_OPEN
   // which means the file will not be open until we write to it.
   do_check_false(file.exists());
   let data = "test_default_flags";
   fos.write(data, data.length);
   do_check_true(file.exists());
   // No nsIXULRuntime in xpcshell, so use this trick to determine whether we're
   // on Windows.
   if ("@mozilla.org/windows-registry-key;1" in Components.classes) {
     do_check_eq(file.permissions, 0666);
   } else {
     do_check_eq(file.permissions, FileUtils.PERMS_FILE);
   }
   run_next_test();
 };
 let openFileOutputStream_modeFlags = function(aKind, aFileName) {
   let file = FileUtils.getFile("ProfD", [aFileName]);
   let fos;
   do_check_true(aKind == "atomic" || aKind == "safe" || aKind == "");
   if (aKind == "atomic") {
     fos = FileUtils.openAtomicFileOutputStream(file, FileUtils.MODE_WRONLY);
   } else if (aKind == "safe") {
     fos = FileUtils.openSafeFileOutputStream(file, FileUtils.MODE_WRONLY);
   } else {
     fos = FileUtils.openFileOutputStream(file, FileUtils.MODE_WRONLY);
   }
   let data = "test_modeFlags";
   do_check_throws(function () {
     fos.write(data, data.length);
   }, Components.results.NS_ERROR_FILE_NOT_FOUND);
   do_check_false(file.exists());
   run_next_test();
 };
 let closeFileOutputStream = function(aKind, aFileName) {
   let file = FileUtils.getFile("ProfD", [aFileName]);
   let fos;
   do_check_true(aKind == "atomic" || aKind == "safe");
   if (aKind == "atomic") {
     fos = FileUtils.openAtomicFileOutputStream(file);
   } else if (aKind == "safe") {
     fos = FileUtils.openSafeFileOutputStream(file);
   }
   // We can write data to the stream just fine while it's open.
   let data = "testClose";
   fos.write(data, data.length);
   // But once we close it, we can't anymore.
   if (aKind == "atomic") {
     FileUtils.closeAtomicFileOutputStream(fos);
   } else if (aKind == "safe"){
     FileUtils.closeSafeFileOutputStream(fos);
   }
   do_check_throws(function () {
     fos.write(data, data.length);
   }, Components.results.NS_BASE_STREAM_CLOSED);
   run_next_test();
 };
 add_test(function test_openFileOutputStream_defaultFlags() {
   openFileOutputStream_defaultFlags("", "george");
 });
 // openFileOutputStream will uses MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE
 // as the default mode flags, but we can pass in our own if we want to.
 add_test(function test_openFileOutputStream_modeFlags() {
   openFileOutputStream_modeFlags("", "ringo");
 });
 add_test(function test_openAtomicFileOutputStream_defaultFlags() {
   openFileOutputStream_defaultFlags("atomic", "peiyong");
 });
 // openAtomicFileOutputStream will uses MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE
 // as the default mode flags, but we can pass in our own if we want to.
 add_test(function test_openAtomicFileOutputStream_modeFlags() {
   openFileOutputStream_modeFlags("atomic", "lin");
 });
 add_test(function test_closeAtomicFileOutputStream() {
   closeFileOutputStream("atomic", "peiyonglin");
 });
 add_test(function test_openSafeFileOutputStream_defaultFlags() {
   openFileOutputStream_defaultFlags("safe", "john");
 });
 // openSafeFileOutputStream will uses MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE
 // as the default mode flags, but we can pass in our own if we want to.
 add_test(function test_openSafeFileOutputStream_modeFlags() {
   openFileOutputStream_modeFlags("safe", "paul");
 });
 add_test(function test_closeSafeFileOutputStream() {
   closeFileOutputStream("safe", "georgee");
 });
 add_test(function test_newFile() {
   let testfile = FileUtils.getFile("ProfD", ["test"]);
   let testpath = testfile.path;
   let file = new FileUtils.File(testpath);
   do_check_true(file instanceof Components.interfaces.nsILocalFile);
   do_check_true(file.equals(testfile));
   do_check_eq(file.path, testpath);
   run_next_test();
 });
 function run_test() {
   run_next_test();
 }