Tests for permalinks

diff --git a/BookReaderIA/test/unit/Permalinks.js b/BookReaderIA/test/unit/Permalinks.js
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+++ b/BookReaderIA/test/unit/Permalinks.js
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+
+// Depends on common.js
+
+module("Permalinks");
+
+test("Permalink format - /download/{itemid}/page/{page specifier}.jpg", function() {
+    expect(1);
+    var page = 'page4.jpg';
+    var itemId = 'handbookofdorking00denn';
+
+    var pageURI = imagePermalink(itemId, null, page);
+    equals(pageURI, common.testHost + '/download/handbookofdorking00denn/page/page4.jpg');
+});
+
+(function() {
+    var page = 'page4.jpg';
+    var itemId = 'handbookofdorking00denn';
+
+    asyncTest("Page " + page + " from " + itemId, function() {
+        expect(2);
+    
+        
+        var pageURI = imagePermalink(itemId, null, page);
+        
+        var img = new Image();
+        $(img).bind( 'load error', function(eventObj) {
+            equals(eventObj.type, 'load', 'Load image (' + pageURI + '). Event handler called');
+            equals(this.width, 1566, 'Image width');
+            start();
+        })
+        .attr('src', pageURI);
+        
+        img = null;
+    });
+})();
+
+(function() {
+    var itemId = 'SubBookTest';
+    var page = 'n9.jpg';
+    var subPrefix = 'subdir/subsubdir/book3/Rfp008011ResponseInternetArchive-without-resume';
+    
+    asyncTest("Sub-dir book - Page " + page + " from " + itemId + '/' + subPrefix, function() {
+        expect(2);
+        
+        var pageURI = imagePermalink(itemId, subPrefix, page);
+        
+        var img = new Image();    
+        $(img).bind( 'load error', function(eventObj) {
+            equals(eventObj.type, 'load', 'Load image (' + pageURI + '). Event handler called');
+            equals(this.width, 5100, 'Image width');
+            start();
+        })
+        .attr('src', pageURI);
+        
+        img = null;
+    });
+})();
+
+(function() {
+    var itemId = 'nasa_techdoc_20050157919';
+    var page = 'n20_thumb_rotate90.jpg';
+    var subPrefix = '20050157919';
+    
+    asyncTest("Rotated thumbnail - Page " + page + " from " + itemId + '/' + subPrefix, function() {
+        expect(2);
+        
+        var pageURI = imagePermalink(itemId, subPrefix, page);
+        
+        var img = new Image();    
+        $(img).bind( 'load error', function(eventObj) {
+            equals(eventObj.type, 'load', 'Load image (' + pageURI + '). Event handler called');
+            equals(this.width, 179, 'Image width');
+            start();
+        })
+        .attr('src', pageURI);
+        
+        img = null;
+    });
+})();
+
+(function() {
+    var itemId = 'nasa_techdoc_20050157919';
+    var page = 'preview_thumb.jpg';
+    var subPrefix = null;
+    
+    asyncTest("Preview image for book in subdir without specifying sub-dir - Page " + page + " from " + itemId, function() {
+        expect(2);
+        
+        var pageURI = imagePermalink(itemId, subPrefix, page);
+        
+        var img = new Image();    
+        $(img).bind( 'load error', function(eventObj) {
+            equals(eventObj.type, 'load', 'Load image (' + pageURI + '). Event handler called');
+            equals(this.width, 122, 'Image width');
+            start();
+        })
+        .attr('src', pageURI);
+        
+        img = null;
+    });
+})();
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