[new feature] Dialog: add confirmButtonText、cancelButtonText prop (#3107)

packages/dialog/test/__snapshots__/index.spec.js.snap

@@ -0,0 +1,13 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`button color 1`] = `
+<div class="van-dialog" name="van-dialog-bounce">
+  <div class="van-hairline--top van-dialog__footer van-dialog__footer--buttons"><button class="van-button van-button--default van-button--large van-dialog__cancel" style="color: white;"><span class="van-button__text">取消</span></button><button class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left" style="color: red;"><span class="van-button__text">确认</span></button></div>
+</div>
+`;
+
+exports[`button text 1`] = `
+<div class="van-dialog" name="van-dialog-bounce">
+  <div class="van-hairline--top van-dialog__footer van-dialog__footer--buttons"><button class="van-button van-button--default van-button--large van-dialog__cancel"><span class="van-button__text">Custom cancel</span></button><button class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left"><span class="van-button__text">Custom confirm</span></button></div>
+</div>
+`;

packages/dialog/test/index.spec.js

@@ -76,3 +76,27 @@ test('register component', () => {
   Vue.use(Dialog);
   expect(Vue.component(DialogVue.name)).toBeTruthy();
 });
+
+test('button color', () => {
+  const wrapper = mount(DialogVue, {
+    propsData: {
+      value: true,
+      showCancelButton: true,
+      cancelButtonColor: 'white',
+      confirmButtonColor: 'red'
+    }
+  });
+  expect(wrapper).toMatchSnapshot();
+});
+
+test('button text', () => {
+  const wrapper = mount(DialogVue, {
+    propsData: {
+      value: true,
+      showCancelButton: true,
+      cancelButtonText: 'Custom cancel',
+      confirmButtonText: 'Custom confirm'
+    }
+  });
+  expect(wrapper).toMatchSnapshot();
+});