1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/src/json/test/unit/test_encode.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,143 @@
1.4 +var Ci = Components.interfaces;
1.5 +var Cc = Components.classes;
1.6 +
1.7 +var nativeJSON = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
1.8 +
1.9 +var dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);
1.10 +var workingDir = dirSvc.get("TmpD", Ci.nsIFile);
1.11 +
1.12 +var outputName = "json-test-output";
1.13 +var outputDir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
1.14 +outputDir.initWithFile(workingDir);
1.15 +outputDir.append(outputName);
1.16 +
1.17 +if (!outputDir.exists()) {
1.18 + outputDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0777);
1.19 +} else if (!outputDir.isDirectory()) {
1.20 + do_throw(outputName + " is not a directory?")
1.21 +}
1.22 +
1.23 +function testStringEncode()
1.24 +{
1.25 + var obj1 = {a:1};
1.26 + var obj2 = {foo:"bar"};
1.27 + do_check_eq(nativeJSON.encode(obj1), '{"a":1}');
1.28 + do_check_eq(nativeJSON.encode(obj2), '{"foo":"bar"}');
1.29 +
1.30 + do_check_eq(nativeJSON.encode(), null);
1.31 +
1.32 + // useless roots are dropped
1.33 + do_check_eq(nativeJSON.encode(null), null);
1.34 + do_check_eq(nativeJSON.encode(""), null);
1.35 + do_check_eq(nativeJSON.encode(undefined), null);
1.36 + do_check_eq(nativeJSON.encode(5), null);
1.37 + do_check_eq(nativeJSON.encode(function(){}), null);
1.38 + do_check_eq(nativeJSON.encode(dump), null);
1.39 +
1.40 + // All other testing should occur in js/src/tests/ecma_5/JSON/ using
1.41 + // the otherwise-exactly-identical JSON.stringify.
1.42 +}
1.43 +
1.44 +function testToJSON() {
1.45 + var obj1 = {a:1};
1.46 + var obj2 = {foo:"bar"};
1.47 + do_check_eq(nativeJSON.encode({toJSON: function() obj1}), '{"a":1}');
1.48 + do_check_eq(nativeJSON.encode({toJSON: function() obj2}), '{"foo":"bar"}');
1.49 +
1.50 + do_check_eq(nativeJSON.encode({toJSON: function() null}), null);
1.51 + do_check_eq(nativeJSON.encode({toJSON: function() ""}), null);
1.52 + do_check_eq(nativeJSON.encode({toJSON: function() undefined }), null);
1.53 + do_check_eq(nativeJSON.encode({toJSON: function() 5}), null);
1.54 + do_check_eq(nativeJSON.encode({toJSON: function() function(){}}), null);
1.55 + do_check_eq(nativeJSON.encode({toJSON: function() dump}), null);
1.56 +}
1.57 +
1.58 +function testThrowingToJSON() {
1.59 + var obj1 = {
1.60 + "b": 1,
1.61 + "c": 2,
1.62 + toJSON: function() { throw("uh oh"); }
1.63 + };
1.64 + try {
1.65 + var y = nativeJSON.encode(obj1);
1.66 + throw "didn't throw";
1.67 + } catch (ex) {
1.68 + do_check_eq(ex, "uh oh");
1.69 + }
1.70 +
1.71 + var obj2 = {
1.72 + "b": 1,
1.73 + "c": 2,
1.74 + get toJSON() { throw("crash and burn"); }
1.75 + };
1.76 + try {
1.77 + var y = nativeJSON.encode(obj2);
1.78 + throw "didn't throw";
1.79 + } catch (ex) {
1.80 + do_check_eq(ex, "crash and burn");
1.81 + }
1.82 +}
1.83 +
1.84 +function testOutputStreams() {
1.85 + function writeToFile(obj, charset, writeBOM) {
1.86 + var jsonFile = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
1.87 + jsonFile.initWithFile(outputDir);
1.88 + jsonFile.append("test.json");
1.89 + jsonFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0600);
1.90 + var stream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
1.91 + try {
1.92 + stream.init(jsonFile, 0x04 | 0x08 | 0x20, 0600, 0); // write, create, truncate
1.93 + nativeJSON.encodeToStream(stream, charset, writeBOM, obj);
1.94 + } finally {
1.95 + stream.close();
1.96 + }
1.97 + return jsonFile;
1.98 + }
1.99 +
1.100 + var pairs = [
1.101 + ["{}", {}],
1.102 + ['{"foo":"bar"}', {"foo":"bar"}],
1.103 + ['{"null":null}', {"null":null}],
1.104 + ['{"five":5}', {"five":5}],
1.105 + ['{"true":true}', {"true":true}],
1.106 + ['{"x":{"y":"z"}}', {"x":{"y":"z"}}],
1.107 + ['{"w":{"x":{"y":"z"}}}', {"w":{"x":{"y":"z"}}}],
1.108 + ["[]", []],
1.109 + ['[1,2,3]', [1,2,3]],
1.110 + ['[1,null,3]',[1,,3]],
1.111 + ];
1.112 + for (var i = 0; i < pairs.length; i++)
1.113 + {
1.114 + var pair = pairs[i];
1.115 + if (pair[1] && (typeof pair[1] == "object")) {
1.116 + var utf8File = writeToFile(pair[1], "UTF-8", false);
1.117 + var utf16LEFile = writeToFile(pair[1], "UTF-16LE", false);
1.118 + var utf16BEFile = writeToFile(pair[1], "UTF-16BE", false);
1.119 +
1.120 + // all ascii with no BOMs, so this will work
1.121 + do_check_eq(utf16LEFile.fileSize / 2, utf8File.fileSize);
1.122 + do_check_eq(utf16LEFile.fileSize, utf16BEFile.fileSize);
1.123 + }
1.124 + }
1.125 +
1.126 + // check BOMs
1.127 + // the clone() calls are there to work around -- bug 410005
1.128 + var f = writeToFile({},"UTF-8", true).clone();
1.129 + do_check_eq(f.fileSize, 5);
1.130 + var f = writeToFile({},"UTF-16LE", true).clone();
1.131 + do_check_eq(f.fileSize, 6);
1.132 + var f = writeToFile({},"UTF-16BE", true).clone();
1.133 + do_check_eq(f.fileSize, 6);
1.134 +
1.135 + outputDir.remove(true);
1.136 +}
1.137 +
1.138 +function run_test()
1.139 +{
1.140 + testStringEncode();
1.141 + testToJSON();
1.142 + testThrowingToJSON();
1.143 +
1.144 + testOutputStreams();
1.145 +
1.146 +}
