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default_validator_test.go
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default_validator_test.go
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// Copyright 2020 Gin Core Team. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package binding
import (
"errors"
"testing"
"github.com/go-playground/validator/v10"
"github.com/stretchr/testify/assert"
)
func TestSliceFieldError(t *testing.T) {
var fe validator.FieldError = dummyFieldError{msg: "test error"}
var err SliceFieldError = sliceFieldError{fe, 10}
assert.Equal(t, 10, err.Index())
assert.Equal(t, "[10]: test error", err.Error())
assert.Equal(t, fe, errors.Unwrap(err))
}
func TestMapFieldError(t *testing.T) {
var fe validator.FieldError = dummyFieldError{msg: "test error"}
var err MapFieldError = mapFieldError{fe, "test key"}
assert.Equal(t, "test key", err.Key())
assert.Equal(t, "[test key]: test error", err.Error())
assert.Equal(t, fe, errors.Unwrap(err))
err = mapFieldError{fe, 123}
assert.Equal(t, 123, err.Key())
assert.Equal(t, "[123]: test error", err.Error())
assert.Equal(t, fe, errors.Unwrap(err))
}
type dummyFieldError struct {
validator.FieldError
msg string
}
func (fe dummyFieldError) Error() string {
return fe.msg
}
func TestDefaultValidator(t *testing.T) {
type exampleStruct struct {
A string `binding:"max=8"`
B int `binding:"gt=0"`
}
tests := []struct {
name string
v *defaultValidator
obj interface{}
wantErr bool
}{
{"validate nil obj", &defaultValidator{}, nil, false},
{"validate int obj", &defaultValidator{}, 3, false},
{"validate struct failed-1", &defaultValidator{}, exampleStruct{A: "123456789", B: 1}, true},
{"validate struct failed-2", &defaultValidator{}, exampleStruct{A: "12345678", B: 0}, true},
{"validate struct passed", &defaultValidator{}, exampleStruct{A: "12345678", B: 1}, false},
{"validate *struct failed-1", &defaultValidator{}, &exampleStruct{A: "123456789", B: 1}, true},
{"validate *struct failed-2", &defaultValidator{}, &exampleStruct{A: "12345678", B: 0}, true},
{"validate *struct passed", &defaultValidator{}, &exampleStruct{A: "12345678", B: 1}, false},
{"validate []struct failed-1", &defaultValidator{}, []exampleStruct{{A: "123456789", B: 1}}, true},
{"validate []struct failed-2", &defaultValidator{}, []exampleStruct{{A: "12345678", B: 0}}, true},
{"validate []struct passed", &defaultValidator{}, []exampleStruct{{A: "12345678", B: 1}}, false},
{"validate []*struct failed-1", &defaultValidator{}, []*exampleStruct{{A: "123456789", B: 1}}, true},
{"validate []*struct failed-2", &defaultValidator{}, []*exampleStruct{{A: "12345678", B: 0}}, true},
{"validate []*struct passed", &defaultValidator{}, []*exampleStruct{{A: "12345678", B: 1}}, false},
{"validate *[]struct failed-1", &defaultValidator{}, &[]exampleStruct{{A: "123456789", B: 1}}, true},
{"validate *[]struct failed-2", &defaultValidator{}, &[]exampleStruct{{A: "12345678", B: 0}}, true},
{"validate *[]struct passed", &defaultValidator{}, &[]exampleStruct{{A: "12345678", B: 1}}, false},
{"validate *[]*struct failed-1", &defaultValidator{}, &[]*exampleStruct{{A: "123456789", B: 1}}, true},
{"validate *[]*struct failed-2", &defaultValidator{}, &[]*exampleStruct{{A: "12345678", B: 0}}, true},
{"validate *[]*struct passed", &defaultValidator{}, &[]*exampleStruct{{A: "12345678", B: 1}}, false},
{"validate map[string]struct failed-1", &defaultValidator{}, map[string]exampleStruct{"x": {A: "123456789", B: 1}}, true},
{"validate map[string]struct failed-2", &defaultValidator{}, map[string]exampleStruct{"x": {A: "12345678", B: 0}}, true},
{"validate map[string]struct passed", &defaultValidator{}, map[string]exampleStruct{"x": {A: "12345678", B: 1}}, false},
{"validate map[string]*struct failed-1", &defaultValidator{}, map[string]*exampleStruct{"x": {A: "123456789", B: 1}}, true},
{"validate map[string]*struct failed-2", &defaultValidator{}, map[string]*exampleStruct{"x": {A: "12345678", B: 0}}, true},
{"validate map[string]*struct passed", &defaultValidator{}, map[string]*exampleStruct{"x": {A: "12345678", B: 1}}, false},
{"validate *map[string]struct failed-1", &defaultValidator{}, &map[string]exampleStruct{"x": {A: "123456789", B: 1}}, true},
{"validate *map[string]struct failed-2", &defaultValidator{}, &map[string]exampleStruct{"x": {A: "12345678", B: 0}}, true},
{"validate *map[string]struct passed", &defaultValidator{}, &map[string]exampleStruct{"x": {A: "12345678", B: 1}}, false},
{"validate *map[string]*struct failed-1", &defaultValidator{}, &map[string]*exampleStruct{"x": {A: "123456789", B: 1}}, true},
{"validate *map[string]*struct failed-2", &defaultValidator{}, &map[string]*exampleStruct{"x": {A: "12345678", B: 0}}, true},
{"validate *map[string]*struct passed", &defaultValidator{}, &map[string]*exampleStruct{"x": {A: "12345678", B: 1}}, false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if err := tt.v.ValidateStruct(tt.obj); (err != nil) != tt.wantErr {
t.Errorf("defaultValidator.Validate() error = %v, wantErr %v", err, tt.wantErr)
}
})
}
}
func TestRegisterValidatorTag(t *testing.T) {
type CustomSlice []struct {
A string
}
type CustomArray [10]struct {
A string
}
type CustomMap map[string]struct {
A string
}
type CustomStruct struct {
A string
}
type CustomInt int
// only slice, array, and map types are accepted
RegisterValidatorTag("gt=0", CustomSlice{})
RegisterValidatorTag("gt=0", &CustomSlice{})
RegisterValidatorTag("gt=0", CustomArray{})
RegisterValidatorTag("gt=0", &CustomArray{})
RegisterValidatorTag("gt=0", CustomMap{})
RegisterValidatorTag("gt=0", &CustomMap{})
assert.Panics(t, func() { RegisterValidatorTag("gt=0", CustomStruct{}) })
assert.Panics(t, func() { RegisterValidatorTag("gt=0", &CustomStruct{}) })
assert.Panics(t, func() { var i CustomInt; RegisterValidatorTag("gt=0", i) })
assert.Panics(t, func() { var i CustomInt; RegisterValidatorTag("gt=0", &i) })
}
func TestValidatorTagsSlice(t *testing.T) {
type CustomSlice []struct {
A string `binding:"max=8"`
}
var (
invalidSlice = CustomSlice{{"12345678"}}
invalidVal = CustomSlice{{"123456789"}, {"abcdefgh"}}
validSlice = CustomSlice{{"12345678"}, {"abcdefgh"}}
invalidSliceVal = CustomSlice{{"123456789"}}
)
v := &defaultValidator{}
// no tags registered for the slice itself yet, so only elements are validated
assert.NoError(t, v.ValidateStruct(invalidSlice))
assert.Error(t, v.ValidateStruct(invalidVal))
assert.NoError(t, v.ValidateStruct(validSlice))
assert.NoError(t, v.ValidateStruct(&invalidSlice))
assert.Error(t, v.ValidateStruct(&invalidVal))
assert.NoError(t, v.ValidateStruct(&validSlice))
err := v.ValidateStruct(invalidSliceVal)
assert.Error(t, err)
assert.Len(t, err, 1) // only value error
RegisterValidatorTag("gt=1", CustomSlice{})
assert.Error(t, v.ValidateStruct(invalidSlice))
assert.Error(t, v.ValidateStruct(invalidVal))
assert.NoError(t, v.ValidateStruct(validSlice))
assert.Error(t, v.ValidateStruct(&invalidSlice))
assert.Error(t, v.ValidateStruct(&invalidVal))
assert.NoError(t, v.ValidateStruct(&validSlice))
err = v.ValidateStruct(invalidSliceVal)
assert.Error(t, err)
assert.Len(t, err, 2) // both slice length and value error
}
func TestValidatorTagsMap(t *testing.T) {
type CustomMap map[string]struct {
B int `binding:"gt=0"`
}
var (
invalidMap = CustomMap{"12345678": {1}}
invalidKey = CustomMap{"123456789": {1}, "abcdefgh": {2}}
invalidVal = CustomMap{"12345678": {0}, "abcdefgh": {2}}
invalidMapVal = CustomMap{"12345678": {0}}
validMap = CustomMap{"12345678": {1}, "abcdefgh": {2}}
)
v := &defaultValidator{}
// no tags registered for the map itself yet, so only values are validated
assert.NoError(t, v.ValidateStruct(invalidMap))
assert.NoError(t, v.ValidateStruct(invalidKey))
assert.Error(t, v.ValidateStruct(invalidVal))
assert.NoError(t, v.ValidateStruct(validMap))
assert.NoError(t, v.ValidateStruct(&invalidMap))
assert.NoError(t, v.ValidateStruct(&invalidKey))
assert.Error(t, v.ValidateStruct(&invalidVal))
assert.NoError(t, v.ValidateStruct(&validMap))
err := v.ValidateStruct(invalidMapVal)
assert.Error(t, err)
assert.Len(t, err, 1) // only value error
RegisterValidatorTag("gt=1,dive,keys,max=8,endkeys", CustomMap{})
assert.Error(t, v.ValidateStruct(invalidMap))
assert.Error(t, v.ValidateStruct(invalidKey))
assert.Error(t, v.ValidateStruct(invalidVal))
assert.NoError(t, v.ValidateStruct(validMap))
assert.Error(t, v.ValidateStruct(&invalidMap))
assert.Error(t, v.ValidateStruct(&invalidKey))
assert.Error(t, v.ValidateStruct(&invalidVal))
assert.NoError(t, v.ValidateStruct(&validMap))
err = v.ValidateStruct(invalidMapVal)
assert.Error(t, err)
assert.Len(t, err, 2) // both map size and value errors
}