The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/netwerk/test/unit/test_header_Accept-Language.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,85 @@
     1.4 +//
     1.5 +//  HTTP Accept-Language header test
     1.6 +//
     1.7 +
     1.8 +var testpath = "/bug672448";
     1.9 +
    1.10 +function run_test() {
    1.11 +  let intlPrefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService).getBranch("intl.");
    1.12 +
    1.13 +  // Save old value of preference for later.
    1.14 +  let oldPref = intlPrefs.getCharPref("accept_languages");
    1.15 +
    1.16 +  // Test different numbers of languages, to test different fractions.
    1.17 +  let acceptLangTests = [
    1.18 +    "qaa", // 1
    1.19 +    "qaa,qab", // 2
    1.20 +    "qaa,qab,qac,qad", // 4
    1.21 +    "qaa,qab,qac,qad,qae,qaf,qag,qah", // 8
    1.22 +    "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj", // 10
    1.23 +    "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj,qak", // 11
    1.24 +    "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj,qak,qal,qam,qan,qao,qap,qaq,qar,qas,qat,qau", // 21
    1.25 +    oldPref, // Restore old value of preference (and test it).
    1.26 +  ];
    1.27 +
    1.28 +  let acceptLangTestsNum = acceptLangTests.length;
    1.29 +
    1.30 +  for (let i = 0; i < acceptLangTestsNum; i++) {
    1.31 +    // Set preference to test value.
    1.32 +    intlPrefs.setCharPref("accept_languages", acceptLangTests[i]);
    1.33 +
    1.34 +    // Test value.
    1.35 +    test_accepted_languages();
    1.36 +  }
    1.37 +}
    1.38 +
    1.39 +function test_accepted_languages() {
    1.40 +  let channel = setupChannel(testpath);
    1.41 +
    1.42 +  let AcceptLanguage = channel.getRequestHeader("Accept-Language");
    1.43 +
    1.44 +  let acceptedLanguages = AcceptLanguage.split(",");
    1.45 +
    1.46 +  let acceptedLanguagesLength = acceptedLanguages.length;
    1.47 +
    1.48 +  for (let i = 0; i < acceptedLanguagesLength; i++) {
    1.49 +    let acceptedLanguage, qualityValue;
    1.50 +
    1.51 +    try {
    1.52 +      // The q-value must conform to the definition in HTTP/1.1 Section 3.9.
    1.53 +      [_, acceptedLanguage, qualityValue] = acceptedLanguages[i].trim().match(/^([a-z0-9_-]*?)(?:;q=(1(?:\.0{0,3})?|0(?:\.[0-9]{0,3})))?$/i);
    1.54 +    } catch(e) {
    1.55 +      do_throw("Invalid language tag or quality value: " + e);
    1.56 +    }
    1.57 +
    1.58 +    if (i == 0) {
    1.59 +      // The first language shouldn't have a quality value.
    1.60 +      do_check_eq(qualityValue, undefined);
    1.61 +    } else {
    1.62 +      let decimalPlaces;
    1.63 +
    1.64 +      // When the number of languages is small, we keep the quality value to only one decimal place.
    1.65 +      // Otherwise, it can be up to two decimal places.
    1.66 +      if (acceptedLanguagesLength < 10) {
    1.67 +        do_check_true(qualityValue.length == 3);
    1.68 +
    1.69 +        decimalPlaces = 1;
    1.70 +      } else {
    1.71 +        do_check_true(qualityValue.length >= 3);
    1.72 +        do_check_true(qualityValue.length <= 4);
    1.73 +
    1.74 +        decimalPlaces = 2;
    1.75 +      }
    1.76 +
    1.77 +      // All the other languages should have an evenly-spaced quality value.
    1.78 +      do_check_eq(parseFloat(qualityValue).toFixed(decimalPlaces), (1.0 - ((1 / acceptedLanguagesLength) * i)).toFixed(decimalPlaces));
    1.79 +    }
    1.80 +  }
    1.81 +}
    1.82 +
    1.83 +function setupChannel(path) {
    1.84 +  let ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
    1.85 +  let chan = ios.newChannel("http://localhost:4444" + path, "", null);
    1.86 +  chan.QueryInterface(Ci.nsIHttpChannel);
    1.87 +  return chan;
    1.88 +}