Merge remote-tracking branch 'origin/ACP2E-4222' into PR_2025_09_25_muntianu

Author: katmoon

dev/tests/js/jasmine/tests/lib/web/magnifier.test.js

@@ -0,0 +1,80 @@
+/**
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ */
+
+/**
+ * Jasmine tests for magnifier.js
+ */
+describe('Magnifier', function () {
+    'use strict';
+    let $, configMagnify, $container, $thumb, $preview;
+
+    beforeAll(function (done) {
+        require(['/lib/web/magnifier/magnifier.js'], function () {
+            $ = window.jQuery;
+            configMagnify = $.fn.magnify;
+            done();
+        });
+    });
+
+    beforeEach(function () {
+        $container = $('<div></div>');
+        const dataUri = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==';
+
+        $thumb = $('<img id="test-thumb" src="' + dataUri + '" />');
+        $preview = $('<div class="magnifier-preview"></div>');
+        $container.append($thumb);
+        $('body').append($container).append($preview);
+    });
+
+    afterEach(function () {
+        $container.remove();
+        $preview.remove();
+    });
+
+    it('should not throw error if data is empty', function () {
+        expect(function () {
+            $container.magnify({ thumb: '#test-thumb', largeWrapper: '.magnifier-preview' });
+        }).not.toThrow();
+    });
+
+    it('should show magnifier for valid image', function (done) {
+        const configMagnifier = $container.magnify({thumb: '#test-thumb', largeWrapper: '.magnifier-preview'});
+
+        setTimeout(function () {
+            expect($('.magnifier-preview').length).toBe(1);
+            done();
+        }, 100);
+    });
+
+    it('should not break when navigating from PLP to PDP', function () {
+        $container.magnify({ thumb: '#test-thumb', largeWrapper: '.magnifier-preview' });
+        expect(function () {
+            $container.magnify({ thumb: '#test-thumb', largeWrapper: '.magnifier-preview' });
+        }).not.toThrow();
+    });
+
+    it('should not throw error if large image is missing', function (done) {
+        $thumb.attr('src', '/404-image.jpg');
+        expect(function () {
+            $container.magnify({ thumb: '#test-thumb', largeWrapper: '.magnifier-preview' });
+        }).not.toThrow();
+        setTimeout(function () {
+            expect($('.magnifier-preview').length).toBe(1);
+            done();
+        }, 100);
+    });
+
+    it('should not throw error if thumb image has zero width/height', function (done) {
+        $thumb.css({ width: 0, height: 0 });
+        $thumb.attr('src', 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==');
+        expect(function () {
+            $container.magnify({ thumb: '#test-thumb', largeWrapper: '.magnifier-preview' });
+        }).not.toThrow();
+        setTimeout(function () {
+            expect($('.magnifier-preview').length).toBe(1);
+            done();
+        }, 100);
+    });
+});