Remove --use-github-expected option and use new --assume-artifacts option in...

Remove --use-github-expected option and use new --assume-artifacts option in screenshot testrunner so diffviewer output will be accurate when uploaded to artifacts server.

tests/lib/screenshot-testing/support/app.js

@@ -52,8 +52,8 @@ Application.prototype.printHelpAndExit = function () {
     console.log("  --print-logs:             Prints webpage logs even if tests succeed.");
     console.log("  --store-in-ui-tests-repo: Stores processed screenshots within the UI tests repository even if");
     console.log("                            the tests are in another plugin. For use with travis build.");
-    console.log("  --use-github-expected:    Only show the github expected file links in diffviewer.html output.");
-    console.log("                            For use with travis build.");
+    console.log("  --assume-artifacts:       Assume the diffviewer and processed screenshots will be stored on the.");
+    console.log("                            builds artifacts server. For use with travis build.");
 
     phantom.exit(0);
 };

tests/lib/screenshot-testing/support/diff-viewer.js

@@ -71,7 +71,7 @@ DiffViewerGenerator.prototype.generate = function (callback) {
                                       + entry.name + '.png';
 
                 var expectedHtml = '';
-                if (!options['use-github-expected']) {
+                if (!options['assume-artifacts']) {
                     expectedHtml += '<a href="' + expectedUrl + '">Expected</a>&nbsp;';
                 }
                 expectedHtml += '<a href="' + expectedUrlGithub + '">[Github]</a>';
@@ -80,7 +80,11 @@ DiffViewerGenerator.prototype.generate = function (callback) {
             }
 
             if (entry.processed) {
-                entry.processedUrl = self.getUrlForPath(entry.processed);
+                if (options['assume-artifacts']) {
+                    entry.processedUrl = path.join("../processed-ui-screenshots", path.basename(entry.processed));
+                } else {
+                    entry.processedUrl = self.getUrlForPath(entry.processed);
+                }
             }
 
             var entryLocationHint = '',

tests/lib/screenshot-testing/support/path.js

@@ -16,6 +16,11 @@ exports.dirname = function (path) {
     return lastSeparator == -1 ? path : path.substring(0, lastSeparator);
 };
 
+exports.basename = function (path) {
+    var lastSeparator = path.lastIndexOf("/");
+    return lastSeparator == -1 ? path : path.substring(lastSeparator + 1);
+};
+
 exports.resolve = function (path) {
     if (path.charAt(0) != '/') {
         path = exports.join(__dirname, path);