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json-iterator/misc_tests/jsoniter_null_test.go
2018-02-24 22:04:41 +08:00

82 lines
2.0 KiB
Go

package misc_tests
import (
"bytes"
"io"
"testing"
"github.com/json-iterator/go"
"github.com/stretchr/testify/require"
)
func Test_read_null(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `null`)
should.True(iter.ReadNil())
iter = jsoniter.ParseString(jsoniter.ConfigDefault, `null`)
should.Nil(iter.Read())
iter = jsoniter.ParseString(jsoniter.ConfigDefault, `navy`)
iter.Read()
should.True(iter.Error != nil && iter.Error != io.EOF)
iter = jsoniter.ParseString(jsoniter.ConfigDefault, `navy`)
iter.ReadNil()
should.True(iter.Error != nil && iter.Error != io.EOF)
}
func Test_write_null(t *testing.T) {
should := require.New(t)
buf := &bytes.Buffer{}
stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
stream.WriteNil()
stream.Flush()
should.Nil(stream.Error)
should.Equal("null", buf.String())
}
func Test_decode_null_object_field(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
iter.ReadArray()
if iter.ReadObject() != "" {
t.FailNow()
}
iter.ReadArray()
if iter.ReadString() != "a" {
t.FailNow()
}
type TestObject struct {
Field string
}
objs := []TestObject{}
should.Nil(jsoniter.UnmarshalFromString("[null]", &objs))
should.Len(objs, 1)
}
func Test_decode_null_array_element(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
should.True(iter.ReadArray())
should.True(iter.ReadNil())
should.True(iter.ReadArray())
should.Equal("a", iter.ReadString())
}
func Test_decode_null_string(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
should.True(iter.ReadArray())
should.Equal("", iter.ReadString())
should.True(iter.ReadArray())
should.Equal("a", iter.ReadString())
}
func Test_decode_null_skip(t *testing.T) {
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
iter.ReadArray()
iter.Skip()
iter.ReadArray()
if iter.ReadString() != "a" {
t.FailNow()
}
}