added tests for history extension

fieg · fieg · commit 0cdc2f41d83e · 2014-05-11T16:33:57.000+02:00
diff --git a/src/extension/history.js b/src/extension/history.js
@@ -135,7 +135,7 @@ IASHistoryExtension.prototype.initialize = function (ias) {
 
   // expose prev method
   ias.prev = function() {
-    self.prev();
+    return self.prev();
   };
 
   this.prevUrl = this.getPrevUrl();
diff --git a/test/04-history-extension-test.js b/test/04-history-extension-test.js
@@ -0,0 +1,77 @@
+buster.spec.expose();
+
+describe("IAS", function () {
+  before(function() {
+    this.timeout = 10000;
+
+    window.scrollTo(0, 0);
+  });
+
+  after(function() {
+    jQuery.ias('destroy');
+  });
+
+  it("should expose a prev method", function() {
+    var ias = jQuery.ias({
+      container : '.listing',
+      item: '.post',
+      pagination: '.navigation',
+      next: '.next-posts a'
+    });
+
+    ias.extension(new IASTriggerExtension());
+    ias.extension(new IASPagingExtension());
+    ias.extension(new IASHistoryExtension({
+      prev: '.prev-posts a'
+    }));
+
+    ias.initialize();
+
+    expect(ias.prev).toBeDefined();
+  });
+
+  it("should load the prev page when prev() is called", function() {
+    var deferred = when.defer();
+
+    loadFixture("page2.html", function() {
+      var ias = jQuery.ias({
+        container : '.listing',
+        item: '.post',
+        pagination: '.navigation',
+        next: '.next-posts a'
+      });
+
+      ias.extension(new IASPagingExtension());
+      ias.extension(new IASHistoryExtension({
+        prev: '.prev-posts a'
+      }));
+
+      // ias auto-loads the prev page when initialized,
+      // this prevents the autoloading
+      var firstTime = true;
+      ias.on('prev', function () {
+        if (firstTime) {
+          firstTime = false;
+
+          return false;
+        }
+
+        return true;
+      }, 1000);
+
+      ias.initialize();
+
+      expect($('#post1').length).toEqual(0);
+
+      expect(ias.prev()).toBeTrue();
+
+      wait(1000).then(function() {
+        expect($('#post1').length).toEqual(1);
+
+        deferred.resolve();
+      });
+    });
+
+    return deferred.promise;
+  });
+});
diff --git a/test/buster.js b/test/buster.js
@@ -12,7 +12,8 @@ config["My tests"] = {
     "src/extension/paging.js",
     "src/extension/spinner.js",
     "src/extension/trigger.js",
-    "src/extension/noneleft.js"
+    "src/extension/noneleft.js",
+    "src/extension/history.js"
   ],
   resources: [
     { path: "/",            file: "test/fixtures/page1.html" },
diff --git a/test/fixtures/page1.html b/test/fixtures/page1.html
@@ -21,7 +21,7 @@
 <body>
 <div id="content">
     <div class="listing">
-        <div class="post">
+        <div class="post" id="post1">
             <strong>item 1</strong>
             <p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. Donec non enim in turpis pulvinar facilisis. Ut felis.</p>
         </div>
diff --git a/test/fixtures/page2.html b/test/fixtures/page2.html
@@ -62,8 +62,8 @@
 
     <div class="navigation">
         <ul>
-            <li class="prev-posts"><a href="page1.html">prev</a></li>
-            <li><a href="page1.html">1</a></li>
+            <li class="prev-posts"><a href="./">prev</a></li>
+            <li><a href="./">1</a></li>
             <li>2</li>
             <li><a href="page3.html">3</a></li>
             <li class="next-posts"><a href="page3.html">next</a></li>
diff --git a/test/fixtures/page3.html b/test/fixtures/page3.html
@@ -63,7 +63,7 @@
     <div class="navigation">
         <ul>
             <li class="prev-posts"><a href="page2.html">prev</a></li>
-            <li><a href="page1.html">1</a></li>
+            <li><a href="./">1</a></li>
             <li><a href="page2.html">2</a></li>
             <li>3</li>
         </ul>
