fix(Field): failed to reset validation when message is empty (#6867)

* fix(Field): failed to reset validation when message is empty

* fix: test case

src/field/index.js

@@ -282,7 +282,7 @@ export default createComponent({
     },
 
     resetValidation() {
-      if (this.validateMessage) {
+      if (this.validateFailed) {
         this.validateFailed = false;
         this.validateMessage = '';
       }

src/form/test/__snapshots__/methods.spec.js.snap

@@ -1,19 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`resetValidation method - reset one field 1`] = `
-<form class="van-form">
-  <div class="van-cell van-field">
-    <div class="van-cell__value van-cell__value--alone van-field__value">
-      <div class="van-field__body"><input type="text" name="A" class="van-field__control"></div>
-    </div>
-  </div>
-  <div class="van-cell van-field van-field--error">
-    <div class="van-cell__value van-cell__value--alone van-field__value">
-      <div class="van-field__body"><input type="text" name="B" class="van-field__control"></div>
-      <div class="van-field__error-message">B failed</div>
-    </div>
-  </div> <button type="submit" class="van-button van-button--default van-button--normal">
-    <div class="van-button__content"></div>
-  </button>
-</form>
-`;

src/form/test/methods.spec.js

@@ -90,7 +90,27 @@ test('resetValidation method - reset one field', (done) => {
     mounted() {
       this.$refs.form.validate().catch(() => {
         this.$refs.form.resetValidation('A');
-        expect(wrapper).toMatchSnapshot();
+        expect(wrapper.findAll('.van-field--error').length).toEqual(1);
+        this.$refs.form.resetValidation('B');
+        expect(wrapper.findAll('.van-field--error').length).toEqual(0);
+        done();
+      });
+    },
+  });
+});
+
+test('resetValidation method - reset when rule message is empty', (done) => {
+  const wrapper = mountSimpleRulesForm({
+    data() {
+      return {
+        rulesA: [{ required: true, message: '' }],
+        rulesB: [{ required: true, message: '' }],
+      };
+    },
+    mounted() {
+      this.$refs.form.validate().catch(() => {
+        this.$refs.form.resetValidation('A');
+        expect(wrapper.findAll('.van-field--error').length).toEqual(1);
         done();
       });
     },