diff --git a/test/modules/iiif.js b/test/modules/iiif.js
new file mode 100644
index 00000000..ab9ece03
--- /dev/null
+++ b/test/modules/iiif.js
@@ -0,0 +1,101 @@
+(function() {
+
+    var id = "http://example.com/identifier";
+
+    var configure = function(data) {
+        return OpenSeadragon.IIIFTileSource.prototype.configure.apply(
+            new OpenSeadragon.TileSource(), [ data, 'http://example.com/identifier' ]
+        );
+    };
+
+    var infoXml10level0 = new DOMParser().parseFromString('<?xml version="1.0" encoding="UTF-8"?>' +
+            '<info xmlns="http://library.stanford.edu/iiif/image-api/ns/">' +
+            '<identifier>http://example.com/identifier</identifier>' +
+            '<width>6000</width>' +
+            '<height>4000</height>' +
+            '<scale_factors>' +
+            '<scale_factor>1</scale_factor>' +
+            '<scale_factor>2</scale_factor>' +
+            '<scale_factor>4</scale_factor>' +
+            '</scale_factors>' +
+            '<profile>http://library.stanford.edu/iiif/image-api/compliance.html#level0</profile>' +
+            '</info>',
+            'text/xml'
+        ),
+        infoXml10level0sizeByW,
+        infoXml10level1,
+        infoJson10level0 = {
+            "identifier": id,
+            "width": 200,
+            "height": 100,
+            "profile" : "http://library.stanford.edu/iiif/image-api/compliance.html#level0"
+        },
+        infoJson10level0sizeByW,
+        infoJson10level1,
+        infoJson11level0 = {
+            "@context": "http://library.stanford.edu/iiif/image-api/1.1/context.json",
+            "@id": id,
+            "width": 200,
+            "height": 100,
+            "profile": "http://library.stanford.edu/iiif/image-api/1.1/compliance.html#level0"
+        },
+        infoJson11level0sizeByW,
+        infoJson11level1,
+        infoJson2level0 = {
+            "@context": "http://iiif.io/api/image/2/context.json",
+            "@id": id,
+            "width": 200,
+            "height": 100,
+            "profile": ["http://iiif.io/api/image/2/level0.json"]
+        },
+        infoJson2level0sizeByW,
+        infoJson2level1,
+        infoJson3level0 = {
+            "@context": "http://iiif.io/api/image/3/context.json",
+            "id": id,
+            "width": 200,
+            "height": 100,
+            "profile": "level0"
+        },
+        infoJson3level0ContextExtension = {
+            "@context": [
+                "http://iiif.io/api/image/3/context.json",
+                {
+                    "example": "http://example.com/vocab"
+                }
+            ],
+            "id": id,
+            "width": 200,
+            "height": 100,
+            "profile": "level0"
+        },
+        infoJson3level0sizeByW,
+        infoJson3level1;
+
+    QUnit.test('IIIFTileSource.configure determins correct version', function(assert) {
+        var options1_0xml = configure(infoXml10level0);
+        assert.ok(options1_0xml.version);
+        assert.equal(options1_0xml.version, 1, 'Version is 1 for version 1.0 info.xml');
+
+        var options1_0 = configure(infoJson10level0);
+        assert.ok(options1_0.version);
+        assert.equal(options1_0.version, 1, 'Version is 1 for version 1.0 info.json');
+
+        var options1_1 = configure(infoJson11level0);
+        assert.ok(options1_1.version);
+        assert.equal(options1_1.version, 1, 'Version is 1 for version 1.1 info.json');
+
+        var options2 = configure(infoJson2level0);
+        assert.ok(options2.version);
+        assert.equal(options2.version, 2, 'Version is 2 for version 2 info.json');
+
+        var options3 = configure(infoJson3level0);
+        assert.ok(options3.version);
+        assert.equal(options3.version, 3, 'Version is 3 for version 3 info.json');
+
+        var options3withContextExtension = configure(infoJson3level0ContextExtension);
+        assert.ok(options3withContextExtension.version);
+        assert.equal(options3withContextExtension.version, 3, 'Version is 3 for version 3 info.json');
+    });
+
+})();
diff --git a/test/test.html b/test/test.html
index 786af542..c740b01c 100644
--- a/test/test.html
+++ b/test/test.html
@@ -44,6 +44,7 @@
     <script src="/test/modules/rectangle.js"></script>
     <script src="/test/modules/ajax-tiles.js"></script>
     <script src="/test/modules/imageloader.js"></script>
+    <script src="/test/modules/iiif.js"></script>
     <!--The navigator tests are the slowest (for now; hopefully they can be sped up)
     so we put them last. -->
     <script src="/test/modules/navigator.js"></script>