1 files changed, 56 insertions, 0 deletions
diff --git a/library/cropperjs/test/specs/events/zoom.spec.js b/library/cropperjs/test/specs/events/zoom.spec.js
new file mode 100644
index 000000000..c827067b7
--- /dev/null
+++ b/library/cropperjs/test/specs/events/zoom.spec.js
@@ -0,0 +1,56 @@
+describe('zoom (event)', () => {
+  it('should trigger the `zoom` event', (done) => {
+    const image = window.createImage();
+    let cropper;
+
+    image.addEventListener('ready', () => {
+      cropper.zoom(0.1);
+    });
+
+    image.addEventListener('zoom', (event) => {
+      expect(event.type).to.equal('zoom');
+      done();
+    });
+
+    cropper = new Cropper(image);
+  });
+
+  it('should have correct properties in `event.detail`', (done) => {
+    const image = window.createImage();
+    let cropper;
+
+    image.addEventListener('ready', () => {
+      cropper.zoom(0.1);
+    });
+
+    image.addEventListener('zoom', (event) => {
+      expect(event.detail).to.be.an('object').that.has.all.keys(['ratio', 'oldRatio', 'originalEvent']);
+      expect(event.detail.ratio).to.be.a('number');
+      expect(event.detail.oldRatio).to.be.a('number');
+      expect(event.detail.ratio).to.be.above(0);
+      expect(event.detail.oldRatio).to.be.above(0);
+      expect(event.detail.ratio).to.be.above(event.detail.oldRatio);
+      done();
+    });
+
+    cropper = new Cropper(image);
+  });
+
+  it('should not change the canvas sizes when default prevented', (done) => {
+    const image = window.createImage();
+    let cropper;
+
+    image.addEventListener('ready', () => {
+      const canvasData = cropper.getCanvasData();
+
+      expect(cropper.zoom(0.1).getCanvasData()).to.deep.equal(canvasData);
+      done();
+    });
+
+    image.addEventListener('zoom', (event) => {
+      event.preventDefault();
+    });
+
+    cropper = new Cropper(image);
+  });
+});