michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: 
michael@0: const MANDATORY = ["id", "name", "headerURL"];
michael@0: const OPTIONAL = ["footerURL", "textcolor", "accentcolor", "iconURL",
michael@0:                   "previewURL", "author", "description", "homepageURL",
michael@0:                   "updateURL", "version"];
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/Services.jsm");
michael@0: 
michael@0: function dummy(id) {
michael@0:   return {
michael@0:     id: id || Math.random().toString(),
michael@0:     name: Math.random().toString(),
michael@0:     headerURL: "http://lwttest.invalid/a.png",
michael@0:     footerURL: "http://lwttest.invalid/b.png",
michael@0:     textcolor: Math.random().toString(),
michael@0:     accentcolor: Math.random().toString()
michael@0:   };
michael@0: }
michael@0: 
michael@0: function run_test() {
michael@0:   createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
michael@0:   startupManager();
michael@0: 
michael@0:   Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 8);
michael@0: 
michael@0:   var temp = {};
michael@0:   Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", temp);
michael@0:   do_check_eq(typeof temp.LightweightThemeManager, "object");
michael@0: 
michael@0:   var ltm = temp.LightweightThemeManager;
michael@0: 
michael@0:   do_check_eq(typeof ltm.usedThemes, "object");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   ltm.previewTheme(dummy("preview0"));
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   ltm.previewTheme(dummy("preview1"));
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0:   ltm.resetPreview();
michael@0: 
michael@0:   ltm.currentTheme = dummy("x0");
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.id, "x0");
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x0");
michael@0:   do_check_eq(ltm.getUsedTheme("x0").id, "x0");
michael@0: 
michael@0:   ltm.previewTheme(dummy("preview0"));
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.id, "x0");
michael@0: 
michael@0:   ltm.resetPreview();
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.id, "x0");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x0");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x2");
michael@0:   do_check_eq(ltm.usedThemes.length, 3);
michael@0:   do_check_eq(ltm.currentTheme.id, "x2");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[2].id, "x0");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x3");
michael@0:   ltm.currentTheme = dummy("x4");
michael@0:   ltm.currentTheme = dummy("x5");
michael@0:   ltm.currentTheme = dummy("x6");
michael@0:   ltm.currentTheme = dummy("x7");
michael@0:   do_check_eq(ltm.usedThemes.length, 8);
michael@0:   do_check_eq(ltm.currentTheme.id, "x7");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x6");
michael@0:   do_check_eq(ltm.usedThemes[7].id, "x0");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x8");
michael@0:   do_check_eq(ltm.usedThemes.length, 8);
michael@0:   do_check_eq(ltm.currentTheme.id, "x8");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x7");
michael@0:   do_check_eq(ltm.usedThemes[7].id, "x1");
michael@0:   do_check_eq(ltm.getUsedTheme("x0"), null);
michael@0: 
michael@0:   ltm.forgetUsedTheme("nonexistent");
michael@0:   do_check_eq(ltm.usedThemes.length, 8);
michael@0:   do_check_neq(ltm.currentTheme, null);
michael@0: 
michael@0:   ltm.forgetUsedTheme("x8");
michael@0:   do_check_eq(ltm.usedThemes.length, 7);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x7");
michael@0:   do_check_eq(ltm.usedThemes[6].id, "x1");
michael@0: 
michael@0:   ltm.forgetUsedTheme("x7");
michael@0:   ltm.forgetUsedTheme("x6");
michael@0:   ltm.forgetUsedTheme("x5");
michael@0:   ltm.forgetUsedTheme("x4");
michael@0:   ltm.forgetUsedTheme("x3");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x2");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x1");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x2");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x2");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.id, "x2");
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x2");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x1");
michael@0: 
michael@0:   ltm.currentTheme = ltm.getUsedTheme("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x2");
michael@0: 
michael@0:   ltm.forgetUsedTheme("x1");
michael@0:   ltm.forgetUsedTheme("x2");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   // Use chinese name to test utf-8, for bug #541943
michael@0:   var chineseTheme = dummy("chinese0");
michael@0:   chineseTheme.name = "笢恅0";
michael@0:   chineseTheme.description = "笢恅1";
michael@0:   ltm.currentTheme = chineseTheme;
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.name, "笢恅0");
michael@0:   do_check_eq(ltm.currentTheme.description, "笢恅1");
michael@0:   do_check_eq(ltm.usedThemes[0].name, "笢恅0");
michael@0:   do_check_eq(ltm.usedThemes[0].description, "笢恅1");
michael@0:   do_check_eq(ltm.getUsedTheme("chinese0").name, "笢恅0");
michael@0:   do_check_eq(ltm.getUsedTheme("chinese0").description, "笢恅1");
michael@0: 
michael@0:   // This name used to break the usedTheme JSON causing all LWTs to be lost
michael@0:   var chineseTheme1 = dummy("chinese1");
michael@0:   chineseTheme1.name = "眵昜湮桵蔗坌~郔乾";
michael@0:   chineseTheme1.description = "眵昜湮桵蔗坌~郔乾";
michael@0:   ltm.currentTheme = chineseTheme1;
michael@0:   do_check_neq(ltm.currentTheme, null);
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.name, "眵昜湮桵蔗坌~郔乾");
michael@0:   do_check_eq(ltm.currentTheme.description, "眵昜湮桵蔗坌~郔乾");
michael@0:   do_check_eq(ltm.usedThemes[1].name, "笢恅0");
michael@0:   do_check_eq(ltm.usedThemes[1].description, "笢恅1");
michael@0:   do_check_eq(ltm.usedThemes[0].name, "眵昜湮桵蔗坌~郔乾");
michael@0:   do_check_eq(ltm.usedThemes[0].description, "眵昜湮桵蔗坌~郔乾");
michael@0: 
michael@0:   ltm.forgetUsedTheme("chinese0");
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_neq(ltm.currentTheme, null);
michael@0: 
michael@0:   ltm.forgetUsedTheme("chinese1");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   do_check_eq(ltm.parseTheme("invalid json"), null);
michael@0:   do_check_eq(ltm.parseTheme('"json string"'), null);
michael@0: 
michael@0:   function roundtrip(data, secure) {
michael@0:     return ltm.parseTheme(JSON.stringify(data),
michael@0:                           "http" + (secure ? "s" : "") + "://lwttest.invalid/");
michael@0:   }
michael@0: 
michael@0:   var data = dummy();
michael@0:   do_check_neq(roundtrip(data), null);
michael@0:   data.id = null;
michael@0:   do_check_eq(roundtrip(data), null);
michael@0:   data.id = 1;
michael@0:   do_check_eq(roundtrip(data), null);
michael@0:   data.id = 1.5;
michael@0:   do_check_eq(roundtrip(data), null);
michael@0:   data.id = true;
michael@0:   do_check_eq(roundtrip(data), null);
michael@0:   data.id = {};
michael@0:   do_check_eq(roundtrip(data), null);
michael@0:   data.id = [];
michael@0:   do_check_eq(roundtrip(data), null);
michael@0: 
michael@0:   // Check whether parseTheme handles international characters right
michael@0:   var chineseTheme2 = dummy();
michael@0:   chineseTheme2.name = "眵昜湮桵蔗坌~郔乾";
michael@0:   chineseTheme2.description = "眵昜湮桵蔗坌~郔乾";
michael@0:   do_check_neq(roundtrip(chineseTheme2), null);
michael@0:   do_check_eq(roundtrip(chineseTheme2).name, "眵昜湮桵蔗坌~郔乾");
michael@0:   do_check_eq(roundtrip(chineseTheme2).description, "眵昜湮桵蔗坌~郔乾");
michael@0: 
michael@0:   data = dummy();
michael@0:   data.unknownProperty = "Foo";
michael@0:   do_check_eq(typeof roundtrip(data).unknownProperty, "undefined");
michael@0: 
michael@0:   data = dummy();
michael@0:   data.unknownURL = "http://lwttest.invalid/";
michael@0:   do_check_eq(typeof roundtrip(data).unknownURL, "undefined");
michael@0: 
michael@0:   function roundtripSet(props, modify, test, secure) {
michael@0:     props.forEach(function (prop) {
michael@0:       var data = dummy();
michael@0:       modify(data, prop);
michael@0:       test(roundtrip(data, secure), prop, data);
michael@0:     });
michael@0:   }
michael@0: 
michael@0:   roundtripSet(MANDATORY, function (data, prop) {
michael@0:     delete data[prop];
michael@0:   }, function (after) {
michael@0:     do_check_eq(after, null);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(OPTIONAL, function (data, prop) {
michael@0:     delete data[prop];
michael@0:   }, function (after) {
michael@0:     do_check_neq(after, null);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(MANDATORY, function (data, prop) {
michael@0:     data[prop] = "";
michael@0:   }, function (after) {
michael@0:     do_check_eq(after, null);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(OPTIONAL, function (data, prop) {
michael@0:     data[prop] = "";
michael@0:   }, function (after, prop) {
michael@0:     do_check_eq(typeof after[prop], "undefined");
michael@0:   });
michael@0: 
michael@0:   roundtripSet(MANDATORY, function (data, prop) {
michael@0:     data[prop] = " ";
michael@0:   }, function (after) {
michael@0:     do_check_eq(after, null);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(OPTIONAL, function (data, prop) {
michael@0:     data[prop] = " ";
michael@0:   }, function (after, prop) {
michael@0:     do_check_neq(after, null);
michael@0:     do_check_eq(typeof after[prop], "undefined");
michael@0:   });
michael@0: 
michael@0:   function non_urls(props) {
michael@0:     return props.filter(function (prop) !/URL$/.test(prop));
michael@0:   }
michael@0: 
michael@0:   function urls(props) {
michael@0:     return props.filter(function (prop) /URL$/.test(prop));
michael@0:   }
michael@0: 
michael@0:   roundtripSet(non_urls(MANDATORY.concat(OPTIONAL)), function (data, prop) {
michael@0:     data[prop] = prop;
michael@0:   }, function (after, prop, before) {
michael@0:     do_check_eq(after[prop], before[prop]);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(non_urls(MANDATORY.concat(OPTIONAL)), function (data, prop) {
michael@0:     data[prop] = " " + prop + "  ";
michael@0:   }, function (after, prop, before) {
michael@0:     do_check_eq(after[prop], before[prop].trim());
michael@0:   });
michael@0: 
michael@0:   roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (data, prop) {
michael@0:     data[prop] = Math.random().toString();
michael@0:   }, function (after, prop, before) {
michael@0:     if (prop == "updateURL")
michael@0:       do_check_eq(typeof after[prop], "undefined");
michael@0:     else
michael@0:       do_check_eq(after[prop], "http://lwttest.invalid/" + before[prop]);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (data, prop) {
michael@0:     data[prop] = Math.random().toString();
michael@0:   }, function (after, prop, before) {
michael@0:     do_check_eq(after[prop], "https://lwttest.invalid/" + before[prop]);
michael@0:   }, true);
michael@0: 
michael@0:   roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (data, prop) {
michael@0:     data[prop] = "https://sub.lwttest.invalid/" + Math.random().toString();
michael@0:   }, function (after, prop, before) {
michael@0:     do_check_eq(after[prop], before[prop]);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(urls(MANDATORY), function (data, prop) {
michael@0:     data[prop] = "ftp://lwttest.invalid/" + Math.random().toString();
michael@0:   }, function (after) {
michael@0:     do_check_eq(after, null);
michael@0:   });
michael@0: 
michael@0:   roundtripSet(urls(OPTIONAL), function (data, prop) {
michael@0:     data[prop] = "ftp://lwttest.invalid/" + Math.random().toString();
michael@0:   }, function (after, prop) {
michael@0:     do_check_eq(typeof after[prop], "undefined");
michael@0:   });
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   data = dummy();
michael@0:   delete data.name;
michael@0:   try {
michael@0:     ltm.currentTheme = data;
michael@0:     do_throw("Should have rejected a theme with no name");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   data = dummy();
michael@0:   data.headerURL = "foo";
michael@0:   try {
michael@0:     ltm.currentTheme = data;
michael@0:     do_throw("Should have rejected a theme with a bad headerURL");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   data = dummy();
michael@0:   data.headerURL = "ftp://lwtest.invalid/test.png";
michael@0:   try {
michael@0:     ltm.currentTheme = data;
michael@0:     do_throw("Should have rejected a theme with a non-http(s) headerURL");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   data = dummy();
michael@0:   data.headerURL = "file:///test.png";
michael@0:   try {
michael@0:     ltm.currentTheme = data;
michael@0:     do_throw("Should have rejected a theme with a non-http(s) headerURL");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   data = dummy();
michael@0:   data.updateURL = "file:///test.json";
michael@0:   ltm.setLocalTheme(data);
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.updateURL, undefined);
michael@0:   ltm.forgetUsedTheme(ltm.currentTheme.id);
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0: 
michael@0:   data = dummy();
michael@0:   data.headerURL = "file:///test.png";
michael@0:   ltm.setLocalTheme(data);
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_eq(ltm.currentTheme.headerURL, "file:///test.png");
michael@0:   ltm.forgetUsedTheme(ltm.currentTheme.id);
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0: 
michael@0:   data = dummy();
michael@0:   data.headerURL = "ftp://lwtest.invalid/test.png";
michael@0:   try {
michael@0:     ltm.setLocalTheme(data);
michael@0:     do_throw("Should have rejected a theme with a non-http(s), non-file headerURL");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   data = dummy();
michael@0:   delete data.id;
michael@0:   try {
michael@0:     ltm.currentTheme = data;
michael@0:     do_throw("Should have rejected a theme with no ID");
michael@0:   }
michael@0:   catch (e) {
michael@0:     // Expected exception
michael@0:   }
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   // Force the theme into the prefs anyway
michael@0:   let prefs = Cc["@mozilla.org/preferences-service;1"].
michael@0:               getService(Ci.nsIPrefBranch);
michael@0:   let themes = [data];
michael@0:   prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0: 
michael@0:   // This should silently drop the bad theme.
michael@0:   ltm.currentTheme = dummy();
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   ltm.forgetUsedTheme(ltm.currentTheme.id);
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   // Add one broken and some working.
michael@0:   themes = [data, dummy("x1"), dummy("x2")];
michael@0:   prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
michael@0:   do_check_eq(ltm.usedThemes.length, 3);
michael@0: 
michael@0:   // Switching to an existing theme should drop the bad theme.
michael@0:   ltm.currentTheme = ltm.getUsedTheme("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   ltm.forgetUsedTheme("x1");
michael@0:   ltm.forgetUsedTheme("x2");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
michael@0:   do_check_eq(ltm.usedThemes.length, 3);
michael@0: 
michael@0:   // Forgetting an existing theme should drop the bad theme.
michael@0:   ltm.forgetUsedTheme("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   ltm.forgetUsedTheme("x2");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   // Test whether a JSON set with setCharPref can be retrieved with usedThemes
michael@0:   ltm.currentTheme = dummy("x0");
michael@0:   ltm.currentTheme = dummy("x1");
michael@0:   prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(ltm.usedThemes));
michael@0:   do_check_eq(ltm.usedThemes.length, 2);
michael@0:   do_check_eq(ltm.currentTheme.id, "x1");
michael@0:   do_check_eq(ltm.usedThemes[1].id, "x0");
michael@0:   do_check_eq(ltm.usedThemes[0].id, "x1");
michael@0: 
michael@0:   ltm.forgetUsedTheme("x0");
michael@0:   do_check_eq(ltm.usedThemes.length, 1);
michael@0:   do_check_neq(ltm.currentTheme, null);
michael@0: 
michael@0:   ltm.forgetUsedTheme("x1");
michael@0:   do_check_eq(ltm.usedThemes.length, 0);
michael@0:   do_check_eq(ltm.currentTheme, null);
michael@0: 
michael@0:   Services.prefs.clearUserPref("lightweightThemes.maxUsedThemes");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x1");
michael@0:   ltm.currentTheme = dummy("x2");
michael@0:   ltm.currentTheme = dummy("x3");
michael@0:   ltm.currentTheme = dummy("x4");
michael@0:   ltm.currentTheme = dummy("x5");
michael@0:   ltm.currentTheme = dummy("x6");
michael@0:   ltm.currentTheme = dummy("x7");
michael@0:   ltm.currentTheme = dummy("x8");
michael@0:   ltm.currentTheme = dummy("x9");
michael@0:   ltm.currentTheme = dummy("x10");
michael@0:   ltm.currentTheme = dummy("x11");
michael@0:   ltm.currentTheme = dummy("x12");
michael@0:   ltm.currentTheme = dummy("x13");
michael@0:   ltm.currentTheme = dummy("x14");
michael@0:   ltm.currentTheme = dummy("x15");
michael@0:   ltm.currentTheme = dummy("x16");
michael@0:   ltm.currentTheme = dummy("x17");
michael@0:   ltm.currentTheme = dummy("x18");
michael@0:   ltm.currentTheme = dummy("x19");
michael@0:   ltm.currentTheme = dummy("x20");
michael@0:   ltm.currentTheme = dummy("x21");
michael@0:   ltm.currentTheme = dummy("x22");
michael@0:   ltm.currentTheme = dummy("x23");
michael@0:   ltm.currentTheme = dummy("x24");
michael@0:   ltm.currentTheme = dummy("x25");
michael@0:   ltm.currentTheme = dummy("x26");
michael@0:   ltm.currentTheme = dummy("x27");
michael@0:   ltm.currentTheme = dummy("x28");
michael@0:   ltm.currentTheme = dummy("x29");
michael@0:   ltm.currentTheme = dummy("x30");
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 30);
michael@0: 
michael@0:   ltm.currentTheme = dummy("x31");
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 30);
michael@0:   do_check_eq(ltm.getUsedTheme("x1"), null);
michael@0: 
michael@0:   Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 15);
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 15);
michael@0: 
michael@0:   Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 32);
michael@0: 
michael@0:   ltm.currentTheme = dummy("x1");
michael@0:   ltm.currentTheme = dummy("x2");
michael@0:   ltm.currentTheme = dummy("x3");
michael@0:   ltm.currentTheme = dummy("x4");
michael@0:   ltm.currentTheme = dummy("x5");
michael@0:   ltm.currentTheme = dummy("x6");
michael@0:   ltm.currentTheme = dummy("x7");
michael@0:   ltm.currentTheme = dummy("x8");
michael@0:   ltm.currentTheme = dummy("x9");
michael@0:   ltm.currentTheme = dummy("x10");
michael@0:   ltm.currentTheme = dummy("x11");
michael@0:   ltm.currentTheme = dummy("x12");
michael@0:   ltm.currentTheme = dummy("x13");
michael@0:   ltm.currentTheme = dummy("x14");
michael@0:   ltm.currentTheme = dummy("x15");
michael@0:   ltm.currentTheme = dummy("x16");
michael@0: 
michael@0:   ltm.currentTheme = dummy("x32");
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 32);
michael@0: 
michael@0:   ltm.currentTheme = dummy("x33");
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 32);
michael@0: 
michael@0:   Services.prefs.clearUserPref("lightweightThemes.maxUsedThemes");
michael@0: 
michael@0:   do_check_eq(ltm.usedThemes.length, 30);
michael@0: }