// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package bigquery

import (
	"encoding/json"
	"testing"
)

func TestNullsJSON(t *testing.T) {
	for _, test := range []struct {
		in   interface{}
		want string
	}{
		{NullInt64{Valid: true, Int64: 3}, `3`},
		{NullFloat64{Valid: true, Float64: 3.14}, `3.14`},
		{NullBool{Valid: true, Bool: true}, `true`},
		{NullString{Valid: true, StringVal: "foo"}, `"foo"`},
		{NullTimestamp{Valid: true, Timestamp: testTimestamp}, `"2016-11-05T07:50:22.000000008Z"`},
		{NullDate{Valid: true, Date: testDate}, `"2016-11-05"`},
		{NullTime{Valid: true, Time: testTime}, `"07:50:22.000000"`},
		{NullDateTime{Valid: true, DateTime: testDateTime}, `"2016-11-05 07:50:22.000000"`},

		{NullInt64{}, `null`},
		{NullFloat64{}, `null`},
		{NullBool{}, `null`},
		{NullString{}, `null`},
		{NullTimestamp{}, `null`},
		{NullDate{}, `null`},
		{NullTime{}, `null`},
		{NullDateTime{}, `null`},
	} {
		bytes, err := json.Marshal(test.in)
		if err != nil {
			t.Fatal(err)
		}
		if got, want := string(bytes), test.want; got != want {
			t.Errorf("%#v: got %s, want %s", test.in, got, want)
		}
	}
}