修改多实例时的图标bug

test/constructor.test.js

@@ -0,0 +1,40 @@
+describe('Constructor', function() {
+    it('Constructor is a global variable', function() {
+        expect(Artplayer).to.be.an('function');
+        expect(Artplayer.instances).to.be.an('array');
+        expect(Artplayer.instances.length).to.be.equal(0);
+    });
+
+    it('Instance state', function() {
+        var sample1 = new Artplayer({ ...artBaseOption, container: '.sample1' });
+        expect(sample1.id).to.equal(1);
+        var sample2 = new Artplayer({ ...artBaseOption, container: '.sample2' });
+        expect(sample2.id).to.equal(2);
+        var sample3 = new Artplayer({ ...artBaseOption, container: '.sample3' });
+        expect(sample3.id).to.equal(3);
+    });
+
+    it('Throw error when multiple instances on the same dom element', function() {
+        expect(function() {
+            new Artplayer({ ...artBaseOption, container: '.sample1' });
+        }).to.throw(/Cannot mount multiple instances on the same dom element/);
+    });
+
+    it('Throw error when container is not a dom element or selector', function() {
+        expect(function() {
+            new Artplayer(
+                Object.assign({}, artBaseOption, {
+                    container: null,
+                }),
+            );
+        }).to.throw(/option.container require \'string\' or \'Element\' type, but got \'null\'/);
+    });
+
+    it('Destroy all instances', function() {
+        expect(Artplayer.instances.length).to.equal(3);
+        [...Artplayer.instances].forEach(art => {
+            art.destroy(true);
+        });
+        expect(Artplayer.instances.length).to.equal(0);
+    });
+});