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//go:build go1.7
// +build go1.7
package jsonutil_test
import (
"bytes"
"math"
"reflect"
"testing"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/private/protocol/json/jsonutil"
)
func TestUnmarshalJSON_JSONNumber(t *testing.T) {
type input struct {
TimeField *time.Time `locationName:"timeField"`
IntField *int64 `locationName:"intField"`
FloatField *float64 `locationName:"floatField"`
}
cases := map[string]struct {
JSON string
Value input
Expected input
ExpectedFn func(*testing.T, input)
}{
"seconds precision": {
JSON: `{"timeField":1597094942}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, 00, time.UTC)
return &dt
}(),
},
},
"exact milliseconds precision": {
JSON: `{"timeField":1597094942.123}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"microsecond precision truncated": {
JSON: `{"timeField":1597094942.1235}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"nanosecond precision truncated": {
JSON: `{"timeField":1597094942.123456789}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"milliseconds precision as small exponent": {
JSON: `{"timeField":1.597094942123e9}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"milliseconds precision as large exponent": {
JSON: `{"timeField":1.597094942123E9}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"milliseconds precision as exponent with sign": {
JSON: `{"timeField":1.597094942123e+9}`,
Expected: input{
TimeField: func() *time.Time {
dt := time.Date(2020, 8, 10, 21, 29, 02, int(123*time.Millisecond), time.UTC)
return &dt
}(),
},
},
"integer field": {
JSON: `{"intField":123456789}`,
Expected: input{
IntField: aws.Int64(123456789),
},
},
"integer field truncated": {
JSON: `{"intField":123456789.123}`,
Expected: input{
IntField: aws.Int64(123456789),
},
},
"float64 field": {
JSON: `{"floatField":123456789.123}`,
Expected: input{
FloatField: aws.Float64(123456789.123),
},
},
"float64 field NaN": {
JSON: `{"floatField":"NaN"}`,
ExpectedFn: func(t *testing.T, input input) {
if input.FloatField == nil {
t.Fatal("expect non nil float64")
}
if e, a := true, math.IsNaN(*input.FloatField); e != a {
t.Errorf("expect %v, got %v", e, a)
}
},
},
"float64 field Infinity": {
JSON: `{"floatField":"Infinity"}`,
Expected: input{
FloatField: aws.Float64(math.Inf(1)),
},
},
"float64 field -Infinity": {
JSON: `{"floatField":"-Infinity"}`,
Expected: input{
FloatField: aws.Float64(math.Inf(-1)),
},
},
}
for name, tt := range cases {
t.Run(name, func(t *testing.T) {
err := jsonutil.UnmarshalJSON(&tt.Value, bytes.NewReader([]byte(tt.JSON)))
if err != nil {
t.Errorf("expect no error, got %v", err)
}
if tt.ExpectedFn != nil {
tt.ExpectedFn(t, tt.Value)
return
}
if e, a := tt.Expected, tt.Value; !reflect.DeepEqual(e, a) {
t.Errorf("expect %v, got %v", e, a)
}
})
}
}
|
