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struct_test.go
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struct_test.go
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// Copyright 2016 Qiang Xue. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package validation
import (
"context"
"reflect"
"testing"
"github.com/stretchr/testify/assert"
)
type Struct1 struct {
Field1 int
Field2 *int
Field3 []int
Field4 [4]int
field5 int
Struct2
S1 *Struct2
S2 Struct2
JSONField int `json:"some_json_field"`
JSONIgnoredField int `json:"-"`
}
type Struct2 struct {
Field21 string
Field22 string
}
type Struct3 struct {
*Struct2
S1 string
}
func TestFindStructField(t *testing.T) {
var s1 Struct1
v1 := reflect.ValueOf(&s1).Elem()
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field1)))
assert.Nil(t, findStructField(v1, reflect.ValueOf(s1.Field2)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field2)))
assert.Nil(t, findStructField(v1, reflect.ValueOf(s1.Field3)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field3)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field4)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.field5)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Struct2)))
assert.Nil(t, findStructField(v1, reflect.ValueOf(s1.S1)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.S1)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field21)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Field22)))
assert.NotNil(t, findStructField(v1, reflect.ValueOf(&s1.Struct2.Field22)))
s2 := reflect.ValueOf(&s1.Struct2).Elem()
assert.NotNil(t, findStructField(s2, reflect.ValueOf(&s1.Field21)))
assert.NotNil(t, findStructField(s2, reflect.ValueOf(&s1.Struct2.Field21)))
assert.NotNil(t, findStructField(s2, reflect.ValueOf(&s1.Struct2.Field22)))
s3 := Struct3{
Struct2: &Struct2{},
}
v3 := reflect.ValueOf(&s3).Elem()
assert.NotNil(t, findStructField(v3, reflect.ValueOf(&s3.Struct2)))
assert.NotNil(t, findStructField(v3, reflect.ValueOf(&s3.Field21)))
}
func TestValidateStruct(t *testing.T) {
var m0 *Model1
m1 := Model1{A: "abc", B: "xyz", c: "abc", G: "xyz", H: []string{"abc", "abc"}, I: map[string]string{"foo": "abc"}}
m2 := Model1{E: String123("xyz")}
m3 := Model2{}
m4 := Model2{M3: Model3{A: "abc"}, Model3: Model3{A: "abc"}}
m5 := Model2{Model3: Model3{A: "internal"}}
m6 := Model2{M3AP: []*Model3{nil}}
tests := []struct {
tag string
model interface{}
rules []*FieldRules
err string
}{
// empty rules
{"t1.1", &m1, []*FieldRules{}, ""},
{"t1.2", &m1, []*FieldRules{Field(&m1.A), Field(&m1.B)}, ""},
// normal rules
{"t2.1", &m1, []*FieldRules{Field(&m1.A, &validateAbc{}), Field(&m1.B, &validateXyz{})}, ""},
{"t2.2", &m1, []*FieldRules{Field(&m1.A, &validateXyz{}), Field(&m1.B, &validateAbc{})}, "A: error xyz; B: error abc."},
{"t2.3", &m1, []*FieldRules{Field(&m1.A, &validateXyz{}), Field(&m1.c, &validateXyz{})}, "A: error xyz; c: error xyz."},
{"t2.4", &m1, []*FieldRules{Field(&m1.D, Length(0, 5))}, ""},
{"t2.5", &m1, []*FieldRules{Field(&m1.F, Length(0, 5))}, ""},
{"t2.6", &m1, []*FieldRules{Field(&m1.H, Each(&validateAbc{})), Field(&m1.I, Each(&validateAbc{}))}, ""},
{"t2.7", &m1, []*FieldRules{Field(&m1.H, Each(&validateXyz{})), Field(&m1.I, Each(&validateXyz{}))}, "H: (0: error xyz; 1: error xyz.); I: (foo: error xyz.)."},
// non-struct pointer
{"t3.1", m1, []*FieldRules{}, ErrStructPointer.Error()},
{"t3.2", nil, []*FieldRules{}, ErrStructPointer.Error()},
{"t3.3", m0, []*FieldRules{}, ""},
{"t3.4", &m0, []*FieldRules{}, ErrStructPointer.Error()},
// invalid field spec
{"t4.1", &m1, []*FieldRules{Field(m1)}, ErrFieldPointer(0).Error()},
{"t4.2", &m1, []*FieldRules{Field(&m1)}, ErrFieldNotFound(0).Error()},
// struct tag
{"t5.1", &m1, []*FieldRules{Field(&m1.G, &validateAbc{})}, "g: error abc."},
// validatable field
{"t6.1", &m2, []*FieldRules{Field(&m2.E)}, "E: error 123."},
{"t6.2", &m2, []*FieldRules{Field(&m2.E, Skip)}, ""},
{"t6.3", &m2, []*FieldRules{Field(&m2.E, Skip.When(true))}, ""},
{"t6.4", &m2, []*FieldRules{Field(&m2.E, Skip.When(false))}, "E: error 123."},
// Required, NotNil
{"t7.1", &m2, []*FieldRules{Field(&m2.F, Required)}, "F: cannot be blank."},
{"t7.2", &m2, []*FieldRules{Field(&m2.F, NotNil)}, "F: is required."},
{"t7.3", &m2, []*FieldRules{Field(&m2.F, Skip, Required)}, ""},
{"t7.4", &m2, []*FieldRules{Field(&m2.F, Skip, NotNil)}, ""},
{"t7.5", &m2, []*FieldRules{Field(&m2.F, Skip.When(true), Required)}, ""},
{"t7.6", &m2, []*FieldRules{Field(&m2.F, Skip.When(true), NotNil)}, ""},
{"t7.7", &m2, []*FieldRules{Field(&m2.F, Skip.When(false), Required)}, "F: cannot be blank."},
{"t7.8", &m2, []*FieldRules{Field(&m2.F, Skip.When(false), NotNil)}, "F: is required."},
// embedded structs
{"t8.1", &m3, []*FieldRules{Field(&m3.M3, Skip)}, ""},
{"t8.2", &m3, []*FieldRules{Field(&m3.M3)}, "M3: (A: error abc.)."},
{"t8.3", &m3, []*FieldRules{Field(&m3.Model3, Skip)}, ""},
{"t8.4", &m3, []*FieldRules{Field(&m3.Model3)}, "A: error abc."},
{"t8.5", &m4, []*FieldRules{Field(&m4.M3)}, ""},
{"t8.6", &m4, []*FieldRules{Field(&m4.Model3)}, ""},
{"t8.7", &m3, []*FieldRules{Field(&m3.A, Required), Field(&m3.B, Required)}, "A: cannot be blank; B: cannot be blank."},
{"t8.8", &m3, []*FieldRules{Field(&m4.A, Required)}, "field #0 cannot be found in the struct"},
{"t8.9", &m6, []*FieldRules{Field(&m6.M3AP)}, ""},
{"t8.10", &m6, []*FieldRules{Field(&m6.M3AP, Each(NotNil))}, "M3AP: (0: is required.)."},
// internal error
{"t9.1", &m5, []*FieldRules{Field(&m5.A, &validateAbc{}), Field(&m5.B, Required), Field(&m5.A, &validateInternalError{})}, "error internal"},
}
for _, test := range tests {
err1 := ValidateStruct(test.model, test.rules...)
err2 := ValidateStructWithContext(context.Background(), test.model, test.rules...)
assertError(t, test.err, err1, test.tag)
assertError(t, test.err, err2, test.tag)
}
// embedded struct
err := Validate(&m3)
assert.EqualError(t, err, "A: error abc.")
a := struct {
Name string
Value string
}{"name", "demo"}
err = ValidateStruct(&a,
Field(&a.Name, Required),
Field(&a.Value, Required, Length(5, 10)),
)
assert.EqualError(t, err, "Value: the length must be between 5 and 10.")
}
func TestValidateStructWithContext(t *testing.T) {
m1 := Model1{A: "abc", B: "xyz", c: "abc", G: "xyz"}
m2 := Model2{Model3: Model3{A: "internal"}}
m3 := Model5{}
m6 := Model2{M4AP: []*Model4{nil}}
tests := []struct {
tag string
model interface{}
rules []*FieldRules
err string
}{
// normal rules
{"t1.1", &m1, []*FieldRules{Field(&m1.A, &validateContextAbc{}), Field(&m1.B, &validateContextXyz{})}, ""},
{"t1.2", &m1, []*FieldRules{Field(&m1.A, &validateContextXyz{}), Field(&m1.B, &validateContextAbc{})}, "A: error xyz; B: error abc."},
{"t1.3", &m1, []*FieldRules{Field(&m1.A, &validateContextXyz{}), Field(&m1.c, &validateContextXyz{})}, "A: error xyz; c: error xyz."},
{"t1.4", &m1, []*FieldRules{Field(&m1.G, &validateContextAbc{})}, "g: error abc."},
// skip rule
{"t2.1", &m1, []*FieldRules{Field(&m1.G, Skip, &validateContextAbc{})}, ""},
{"t2.2", &m1, []*FieldRules{Field(&m1.G, &validateContextAbc{}, Skip)}, "g: error abc."},
// internal error
{"t3.1", &m2, []*FieldRules{Field(&m2.A, &validateContextAbc{}), Field(&m2.B, Required), Field(&m2.A, &validateInternalError{})}, "error internal"},
// with custom validate methods
{"t4.1", &m6, []*FieldRules{Field(&m6.M4AP)}, ""},
{"t4.2", &m6, []*FieldRules{Field(&m6.M4AP, Each(NotNil))}, "M4AP: (0: is required.)."},
}
for _, test := range tests {
err := ValidateStructWithContext(context.Background(), test.model, test.rules...)
assertError(t, test.err, err, test.tag)
}
//embedded struct
err := ValidateWithContext(context.Background(), &m3)
if assert.NotNil(t, err) {
assert.Equal(t, "A: error abc.", err.Error())
}
a := struct {
Name string
Value string
}{"name", "demo"}
err = ValidateStructWithContext(context.Background(), &a,
Field(&a.Name, Required),
Field(&a.Value, Required, Length(5, 10)),
)
if assert.NotNil(t, err) {
assert.Equal(t, "Value: the length must be between 5 and 10.", err.Error())
}
}
func Test_getErrorFieldName(t *testing.T) {
var s1 Struct1
v1 := reflect.ValueOf(&s1).Elem()
sf1 := findStructField(v1, reflect.ValueOf(&s1.Field1))
assert.NotNil(t, sf1)
assert.Equal(t, "Field1", getErrorFieldName(sf1))
jsonField := findStructField(v1, reflect.ValueOf(&s1.JSONField))
assert.NotNil(t, jsonField)
assert.Equal(t, "some_json_field", getErrorFieldName(jsonField))
jsonIgnoredField := findStructField(v1, reflect.ValueOf(&s1.JSONIgnoredField))
assert.NotNil(t, jsonIgnoredField)
assert.Equal(t, "JSONIgnoredField", getErrorFieldName(jsonIgnoredField))
}