фикс placeholder для VSelect

packages/vuetify/src/components/VSelect/VSelect.ts

@@ -498,6 +498,7 @@ export default baseMixins.extend({
       const input = VTextField.methods.genInput.call(this)
 
       delete input.props.name
+      delete input.props.placeholder
 
       input.props = mergeData(input.props, {
         readonly: true,

packages/vuetify/src/components/VSelect/__tests__/VSelect.placeholder.spec.ts

@@ -0,0 +1,118 @@
+// Components
+import VSelect from '../VSelect'
+
+// Utilities
+import {
+  mount,
+  VueWrapper,
+  enableAutoUnmount
+} from '@vue/test-utils'
+import { h } from 'vue'
+
+const statusItems = [{ text: 'Новый', value: 'new' }]
+
+const baseProps = {
+  items: statusItems,
+  modelValue: 'new',
+  placeholder: 'Выберите статус',
+  label: ''
+}
+
+describe('VSelect placeholder при value', () => {
+  type Instance = InstanceType<typeof VSelect>
+  let mountFunction: (options?: object) => VueWrapper<Instance>
+  let el: HTMLDivElement
+
+  beforeEach(() => {
+    mountFunction = (options = {}) => {
+      el = document.createElement('div')
+      el.setAttribute('data-app', 'true')
+      document.body.appendChild(el)
+
+      return mount(VSelect, {
+        global: {
+          mocks: {
+            $vuetify: {
+              lang: {
+                t: (val: string) => val
+              },
+              theme: {
+                dark: false
+              },
+              icons: {
+                component: 'mdi'
+              }
+            }
+          }
+        },
+        attachTo: el,
+        ...options
+      })
+    }
+  })
+
+  afterEach(() => {
+    if (el?.parentNode) {
+      document.body.removeChild(el)
+    }
+  })
+
+  enableAutoUnmount(afterEach)
+
+  function textInput (wrapper: VueWrapper<Instance>) {
+    return wrapper.find('input[type="text"]')
+  }
+
+  it('при value: isDirty и текст выбора корректны', () => {
+    const wrapper = mountFunction({ props: baseProps })
+
+    expect(wrapper.vm.isDirty).toBe(true)
+    expect(wrapper.find('.v-select__selection--comma').text()).toBe('Новый')
+  })
+
+  it('при value: на text-input нет атрибута placeholder', () => {
+    const wrapper = mountFunction({ props: baseProps })
+    const input = textInput(wrapper)
+
+    expect(input.exists()).toBe(true)
+    expect(input.attributes('placeholder')).toBeUndefined()
+  })
+
+  it('при пустом value: placeholder на text-input есть', () => {
+    const wrapper = mountFunction({
+      props: {
+        ...baseProps,
+        modelValue: null
+      }
+    })
+    const input = textInput(wrapper)
+
+    expect(wrapper.vm.isDirty).toBe(false)
+    expect(input.attributes('placeholder')).toBe('Выберите статус')
+  })
+
+  it('со слотом #selection при value: placeholder на input отсутствует', () => {
+    const wrapper = mountFunction({
+      props: baseProps,
+      slots: {
+        selection: ({ item }: { item: { text: string } }) => h('span', item.text)
+      }
+    })
+    const input = textInput(wrapper)
+
+    expect(wrapper.text()).toContain('Новый')
+    expect(input.attributes('placeholder')).toBeUndefined()
+  })
+
+  it('при persistentPlaceholder и value: placeholder на input отсутствует', () => {
+    const wrapper = mountFunction({
+      props: {
+        ...baseProps,
+        persistentPlaceholder: true
+      }
+    })
+    const input = textInput(wrapper)
+
+    expect(input.attributes('placeholder')).toBeUndefined()
+  })
+})