github.com/sacloud/libsacloud/v2@v2.32.3/helper/validate/validate_test.go (about) 1 // Copyright 2016-2022 The Libsacloud Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package validate 16 17 import ( 18 "fmt" 19 "testing" 20 ) 21 22 type Foo struct { 23 Required string `validate:"required"` 24 } 25 26 func TestValidator_Struct(t *testing.T) { 27 err := Struct(&Foo{}) 28 29 fmt.Println(err) 30 // Output: Key: 'Foo.Required' Error:Field validation for 'Required' failed on the 'required' tag 31 }