diff --git a/src/collapse/__test__/index.test.jsx b/src/collapse/__test__/index.test.jsx
new file mode 100644
index 000000000..bb792e58e
--- /dev/null
+++ b/src/collapse/__test__/index.test.jsx
@@ -0,0 +1,225 @@
+import { ref, reactive } from 'vue';
+import { mount } from '@vue/test-utils';
+import { Collapse, CollapsePanel } from '../index';
+
+describe('Collapse', () => {
+  describe('collapse props', () => {
+    test('defaultExpandAll', async () => {
+      const defaultExpandAll = ref(false);
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse defaultExpandAll={defaultExpandAll}>
+              <CollapsePanel ref="1" value="1" header="标题1" content="内容1" />
+              <CollapsePanel ref="2" value="2" header="标题2" content="内容2" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel1 = wrapper.findComponent({ ref: '1' });
+      const panel2 = wrapper.findComponent({ ref: '2' });
+
+      expect(panel1.classes()).not.toContain('t-collapse-panel--active');
+      expect(panel2.classes()).not.toContain('t-collapse-panel--active');
+
+      defaultExpandAll.value = true;
+      await wrapper.vm.$nextTick();
+
+      expect(panel1.classes()).toContain('t-collapse-panel--active');
+      expect(panel2.classes()).toContain('t-collapse-panel--active');
+    });
+
+    test('default-value', async () => {
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse default-value={['1']}>
+              <CollapsePanel ref="1" value="1" header="标题1" content="内容1" />
+              <CollapsePanel ref="2" value="2" header="标题2" content="内容2" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel1 = wrapper.findComponent({ ref: '1' });
+      const panel2 = wrapper.findComponent({ ref: '2' });
+
+      expect(panel1.classes()).toContain('t-collapse-panel--active');
+      expect(panel2.classes()).not.toContain('t-collapse-panel--active');
+    });
+
+    test('value', async () => {
+      const val = ref([]);
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse v-model={val.value}>
+              <CollapsePanel ref="1" value="1" header="标题1" content="内容1" />
+              <CollapsePanel ref="2" value="2" header="标题2" content="内容2" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel1 = wrapper.findComponent({ ref: '1' });
+      const panel2 = wrapper.findComponent({ ref: '2' });
+      await panel1.find('.t-collapse-panel__header').trigger('click');
+
+      expect(val.value).toHaveLength(1);
+      expect(val.value).toContain('1');
+
+      await panel2.find('.t-collapse-panel__header').trigger('click');
+
+      expect(val.value).toHaveLength(2);
+      expect(val.value).toContain('2');
+    });
+
+    test('expandMutex', async () => {
+      const val = ref([]);
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse expandMutex v-model={val.value}>
+              <CollapsePanel ref="1" value="1" header="标题1" content="内容1" />
+              <CollapsePanel ref="2" value="2" header="标题2" content="内容2" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel1 = wrapper.findComponent({ ref: '1' });
+      const panel2 = wrapper.findComponent({ ref: '2' });
+      await panel1.find('.t-collapse-panel__header').trigger('click');
+
+      expect(val.value).toHaveLength(1);
+      expect(val.value).toContain('1');
+
+      await panel2.find('.t-collapse-panel__header').trigger('click');
+
+      expect(val.value).toHaveLength(1);
+      expect(val.value).toContain('2');
+    });
+
+    test('onChange', async () => {
+      const handleChange = vi.fn();
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse onChange={handleChange}>
+              <CollapsePanel ref="1" value="1" header="标题" content="内容" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+      await panel.find('.t-collapse-panel__header').trigger('click')
+
+      expect(handleChange).toHaveBeenCalled();
+    });
+
+    test('disabled', async () => {
+      const disabled = ref(false);
+      const handleChange = vi.fn();
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse disabled={disabled.value} onChange={handleChange}>
+              <CollapsePanel ref="1" value="1" header="标题" content="内容" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+      await panel.find('.t-collapse-panel__header').trigger('click');
+
+      expect(handleChange).toHaveBeenCalled();
+
+      disabled.value = true;
+      await wrapper.vm.$nextTick();
+      await panel.find('.t-collapse-panel__header').trigger('click');
+
+      expect(handleChange).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  describe('collapse-panel props', () => {
+    test('header and content', async () => {
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse>
+              <CollapsePanel ref="1" value="1" header="标题" content="内容" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+
+      expect(panel.find('.t-collapse-panel__title').text()).toBe('标题');
+      expect(panel.find('.t-collapse-panel__body').text()).toBe('内容');
+    });
+
+    test('disabled', async () => {
+      const handleChange = vi.fn();
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse onChange={handleChange}>
+              <CollapsePanel ref="1" value="1" disabled header="标题" content="内容" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+
+      await panel.find('.t-collapse-panel__header').trigger('click')
+
+      expect(handleChange).not.toHaveBeenCalled();
+    });
+
+    test('headerRightContent', async () => {
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse>
+              <CollapsePanel ref="1" value="1" headerRightContent="操作" header="标题" content="内容" />
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+
+      expect(panel.find('.t-collapse-panel__header-right').text()).toBe('操作');
+    });
+
+    test('slot', async () => {
+      const wrapper = mount({
+        setup() {
+          return () => (
+            <Collapse>
+              <CollapsePanel ref="1" value="1">
+                {{
+                  header: () => <h4>标题</h4>,
+                  headerRightContent: () => <span>操作</span>,
+                  default: () => <div>内容</div>,
+                }}
+              </CollapsePanel>
+            </Collapse>
+          );
+        },
+      });
+
+      const panel = wrapper.findComponent({ ref: '1' });
+
+      expect(panel.find('.t-collapse-panel__title > h4').html()).toBe('<h4>标题</h4>');
+      expect(panel.find('.t-collapse-panel__header-extra > span').html()).toBe('<span>操作</span>');
+      expect(panel.find('.t-collapse-panel__body > div').html()).toBe('<div>内容</div>');
+    });
+  });
+});