The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/components/osfile/tests/xpcshell/test_osfile_async_copy.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,109 @@
     1.4 +"use strict";
     1.5 +
     1.6 +Components.utils.import("resource://gre/modules/osfile.jsm");
     1.7 +Components.utils.import("resource://gre/modules/FileUtils.jsm");
     1.8 +Components.utils.import("resource://gre/modules/NetUtil.jsm");
     1.9 +Components.utils.import("resource://gre/modules/Promise.jsm");
    1.10 +Components.utils.import("resource://gre/modules/Task.jsm");
    1.11 +
    1.12 +function run_test() {
    1.13 +  do_test_pending();
    1.14 +  run_next_test();
    1.15 +}
    1.16 +
    1.17 +/**
    1.18 + * A file that we know exists and that can be used for reading.
    1.19 + */
    1.20 +let EXISTING_FILE = "test_osfile_async_copy.js";
    1.21 +
    1.22 +/**
    1.23 + * Fetch asynchronously the contents of a file using xpcom.
    1.24 + *
    1.25 + * Used for comparing xpcom-based results to os.file-based results.
    1.26 + *
    1.27 + * @param {string} path The _absolute_ path to the file.
    1.28 + * @return {promise}
    1.29 + * @resolves {string} The contents of the file.
    1.30 + */
    1.31 +let reference_fetch_file = function reference_fetch_file(path) {
    1.32 +  let promise = Promise.defer();
    1.33 +  let file = new FileUtils.File(path);
    1.34 +  NetUtil.asyncFetch(file,
    1.35 +    function(stream, status) {
    1.36 +      if (!Components.isSuccessCode(status)) {
    1.37 +        promise.reject(status);
    1.38 +        return;
    1.39 +      }
    1.40 +      let result, reject;
    1.41 +      try {
    1.42 +        result = NetUtil.readInputStreamToString(stream, stream.available());
    1.43 +      } catch (x) {
    1.44 +        reject = x;
    1.45 +      }
    1.46 +      stream.close();
    1.47 +      if (reject) {
    1.48 +        promise.reject(reject);
    1.49 +      } else {
    1.50 +        promise.resolve(result);
    1.51 +      }
    1.52 +  });
    1.53 +  return promise.promise;
    1.54 +};
    1.55 +
    1.56 +/**
    1.57 + * Compare asynchronously the contents two files using xpcom.
    1.58 + *
    1.59 + * Used for comparing xpcom-based results to os.file-based results.
    1.60 + *
    1.61 + * @param {string} a The _absolute_ path to the first file.
    1.62 + * @param {string} b The _absolute_ path to the second file.
    1.63 + *
    1.64 + * @resolves {null}
    1.65 + */
    1.66 +let reference_compare_files = function reference_compare_files(a, b) {
    1.67 +  let a_contents = yield reference_fetch_file(a);
    1.68 +  let b_contents = yield reference_fetch_file(b);
    1.69 +  // Not using do_check_eq to avoid dumping the whole file to the log.
    1.70 +  // It is OK to === compare here, as both variables contain a string.
    1.71 +  do_check_true(a_contents === b_contents);
    1.72 +};
    1.73 +
    1.74 +/**
    1.75 + * Test to ensure that OS.File.copy works.
    1.76 + */
    1.77 +function test_copymove(options = {}) {
    1.78 +  let source = OS.Path.join((yield OS.File.getCurrentDirectory()),
    1.79 +                            EXISTING_FILE);
    1.80 +  let dest = OS.Path.join(OS.Constants.Path.tmpDir,
    1.81 +                          "test_osfile_async_copy_dest.tmp");
    1.82 +  let dest2 = OS.Path.join(OS.Constants.Path.tmpDir,
    1.83 +                           "test_osfile_async_copy_dest2.tmp");
    1.84 +  try {
    1.85 +    // 1. Test copy.
    1.86 +    yield OS.File.copy(source, dest, options);
    1.87 +    yield reference_compare_files(source, dest);
    1.88 +    // 2. Test subsequent move.
    1.89 +    yield OS.File.move(dest, dest2);
    1.90 +    yield reference_compare_files(source, dest2);
    1.91 +    // 3. Check that the moved file was really moved.
    1.92 +    do_check_eq((yield OS.File.exists(dest)), false);
    1.93 +  } finally {
    1.94 +    try {
    1.95 +      yield OS.File.remove(dest);
    1.96 +    } catch (ex if ex.becauseNoSuchFile) {
    1.97 +      // ignore
    1.98 +    }
    1.99 +    try {
   1.100 +      yield OS.File.remove(dest2);
   1.101 +    } catch (ex if ex.becauseNoSuchFile) {
   1.102 +      // ignore
   1.103 +    }
   1.104 +  }
   1.105 +}
   1.106 +
   1.107 +// Regular copy test.
   1.108 +add_task(test_copymove);
   1.109 +// Userland copy test.
   1.110 +add_task(test_copymove.bind(null, {unixUserland: true}));
   1.111 +
   1.112 +add_task(do_test_finished);