implement #230 DisallowUnknownFields option added

api_tests/decoder_test.go

@@ -0,0 +1,17 @@
+package test
+
+import (
+	"bytes"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_disallowUnknownFields(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct{}
+	var obj TestObject
+	decoder := jsoniter.NewDecoder(bytes.NewBufferString(`{"field1":100}`))
+	decoder.DisallowUnknownFields()
+	should.Error(decoder.Decode(&obj))
+}