Test: layer scale (related to #34)

test/test-layer-scale.js

@@ -0,0 +1,41 @@
+/* See license.txt for terms of usage */
+
+"use strict";
+
+const { click, addNewLayer, waitForEvents, removeLayer, sendPopupMessage } = require("./common.js");
+const { closeTab } = require("sdk/tabs/utils");
+
+/**
+ * xxxHonza TODO docs
+ */
+exports["test Layer Invert"] = function(assert, done) {
+  addNewLayer().then(config => {
+    let popup = config.popup;
+    let layer = config.layer;
+
+    // xxxHonza: the scale change should be done through the form UI.
+    let props = { scale: 2 };
+    sendPopupMessage(popup, "modify", [layer.id, props]);
+
+    // Wait till the layer is modified on the backend.
+    waitForEvents(popup, ["layer-modified"]).then(result => {
+      // Get layer info from the backend.
+      popup.front.getLayerInfo(layer.id).then(response => {
+        let style = response.content.image.style;
+        let index = style.indexOf("transform:scale(2)");
+
+        assert.ok(index > -1, "Layer's image must be scaled");
+
+        // Clean up
+        removeLayer(popup, layer.id).then(() => {
+          config.popup.destroy().then(() => {
+            closeTab(config.tab);
+            done();
+          });
+        });
+      })
+    });
+  });
+};
+
+require("sdk/test").run(exports);