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comparison: netwerk/test/unit/test_header_Accept-Language.js
netwerk/test/unit/test_header_Accept-Language.js
- changeset 1
- ca08bd8f51b2
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| -1:000000000000 | 0:23701ef570aa |
|---|---|
| 1 // | |
| 2 // HTTP Accept-Language header test | |
| 3 // | |
| 4 | |
| 5 var testpath = "/bug672448"; | |
| 6 | |
| 7 function run_test() { | |
| 8 let intlPrefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService).getBranch("intl."); | |
| 9 | |
| 10 // Save old value of preference for later. | |
| 11 let oldPref = intlPrefs.getCharPref("accept_languages"); | |
| 12 | |
| 13 // Test different numbers of languages, to test different fractions. | |
| 14 let acceptLangTests = [ | |
| 15 "qaa", // 1 | |
| 16 "qaa,qab", // 2 | |
| 17 "qaa,qab,qac,qad", // 4 | |
| 18 "qaa,qab,qac,qad,qae,qaf,qag,qah", // 8 | |
| 19 "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj", // 10 | |
| 20 "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj,qak", // 11 | |
| 21 "qaa,qab,qac,qad,qae,qaf,qag,qah,qai,qaj,qak,qal,qam,qan,qao,qap,qaq,qar,qas,qat,qau", // 21 | |
| 22 oldPref, // Restore old value of preference (and test it). | |
| 23 ]; | |
| 24 | |
| 25 let acceptLangTestsNum = acceptLangTests.length; | |
| 26 | |
| 27 for (let i = 0; i < acceptLangTestsNum; i++) { | |
| 28 // Set preference to test value. | |
| 29 intlPrefs.setCharPref("accept_languages", acceptLangTests[i]); | |
| 30 | |
| 31 // Test value. | |
| 32 test_accepted_languages(); | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 function test_accepted_languages() { | |
| 37 let channel = setupChannel(testpath); | |
| 38 | |
| 39 let AcceptLanguage = channel.getRequestHeader("Accept-Language"); | |
| 40 | |
| 41 let acceptedLanguages = AcceptLanguage.split(","); | |
| 42 | |
| 43 let acceptedLanguagesLength = acceptedLanguages.length; | |
| 44 | |
| 45 for (let i = 0; i < acceptedLanguagesLength; i++) { | |
| 46 let acceptedLanguage, qualityValue; | |
| 47 | |
| 48 try { | |
| 49 // The q-value must conform to the definition in HTTP/1.1 Section 3.9. | |
| 50 [_, acceptedLanguage, qualityValue] = acceptedLanguages[i].trim().match(/^([a-z0-9_-]*?)(?:;q=(1(?:\.0{0,3})?|0(?:\.[0-9]{0,3})))?$/i); | |
| 51 } catch(e) { | |
| 52 do_throw("Invalid language tag or quality value: " + e); | |
| 53 } | |
| 54 | |
| 55 if (i == 0) { | |
| 56 // The first language shouldn't have a quality value. | |
| 57 do_check_eq(qualityValue, undefined); | |
| 58 } else { | |
| 59 let decimalPlaces; | |
| 60 | |
| 61 // When the number of languages is small, we keep the quality value to only one decimal place. | |
| 62 // Otherwise, it can be up to two decimal places. | |
| 63 if (acceptedLanguagesLength < 10) { | |
| 64 do_check_true(qualityValue.length == 3); | |
| 65 | |
| 66 decimalPlaces = 1; | |
| 67 } else { | |
| 68 do_check_true(qualityValue.length >= 3); | |
| 69 do_check_true(qualityValue.length <= 4); | |
| 70 | |
| 71 decimalPlaces = 2; | |
| 72 } | |
| 73 | |
| 74 // All the other languages should have an evenly-spaced quality value. | |
| 75 do_check_eq(parseFloat(qualityValue).toFixed(decimalPlaces), (1.0 - ((1 / acceptedLanguagesLength) * i)).toFixed(decimalPlaces)); | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 function setupChannel(path) { | |
| 81 let ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService); | |
| 82 let chan = ios.newChannel("http://localhost:4444" + path, "", null); | |
| 83 chan.QueryInterface(Ci.nsIHttpChannel); | |
| 84 return chan; | |
| 85 } |
