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|
package json
import (
"fmt"
. "github.com/smartystreets/goconvey/convey"
"testing"
)
func TestNumberFloatValue(t *testing.T) {
Convey("When unmarshaling JSON with float values", t, func() {
Convey("converts to a JSON NumberFloat value", func() {
var jsonMap map[string]interface{}
key := "key"
value := "5.5"
data := fmt.Sprintf(`{"%v":%v}`, key, value)
err := Unmarshal([]byte(data), &jsonMap)
So(err, ShouldBeNil)
jsonValue, ok := jsonMap[key].(float64)
So(ok, ShouldBeTrue)
So(jsonValue, ShouldEqual, NumberFloat(5.5))
})
})
Convey("When unmarshaling and marshaling NumberFloat values", t, func() {
key := "key"
Convey("maintains decimal point with trailing zero", func() {
var jsonMap map[string]interface{}
value := "5.0"
data := fmt.Sprintf(`{"%v":%v}`, key, value)
err := Unmarshal([]byte(data), &jsonMap)
So(err, ShouldBeNil)
jsonValue, ok := jsonMap[key].(float64)
So(ok, ShouldBeTrue)
So(jsonValue, ShouldEqual, NumberFloat(5.0))
numFloat := NumberFloat(jsonValue)
byteValue, err := numFloat.MarshalJSON()
So(err, ShouldBeNil)
So(string(byteValue), ShouldEqual, "5.0")
})
Convey("maintains precision with large decimals", func() {
var jsonMap map[string]interface{}
value := "5.52342123"
data := fmt.Sprintf(`{"%v":%v}`, key, value)
err := Unmarshal([]byte(data), &jsonMap)
So(err, ShouldBeNil)
jsonValue, ok := jsonMap[key].(float64)
So(ok, ShouldBeTrue)
So(jsonValue, ShouldEqual, NumberFloat(5.52342123))
numFloat := NumberFloat(jsonValue)
byteValue, err := numFloat.MarshalJSON()
So(err, ShouldBeNil)
So(string(byteValue), ShouldEqual, "5.52342123")
})
Convey("maintains exponent values", func() {
var jsonMap map[string]interface{}
value := "5e+32"
data := fmt.Sprintf(`{"%v":%v}`, key, value)
err := Unmarshal([]byte(data), &jsonMap)
So(err, ShouldBeNil)
jsonValue, ok := jsonMap[key].(float64)
So(ok, ShouldBeTrue)
So(jsonValue, ShouldEqual, NumberFloat(5e32))
numFloat := NumberFloat(jsonValue)
byteValue, err := numFloat.MarshalJSON()
So(err, ShouldBeNil)
So(string(byteValue), ShouldEqual, "5e+32")
})
})
}
|
