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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2017 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package jsonutil_test
import (
"encoding/json"
"strings"
"testing"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/jsonutil"
)
func Test(t *testing.T) { TestingT(t) }
type utilSuite struct{}
var _ = Suite(&utilSuite{})
func (s *utilSuite) TestDecodeError(c *C) {
input := "{]"
var output any
err := jsonutil.DecodeWithNumber(strings.NewReader(input), &output)
c.Assert(err, NotNil)
c.Assert(err, ErrorMatches, `invalid character ']' looking for beginning of object key string`)
}
func (s *utilSuite) TestDecodeErrorOnExcessData(c *C) {
input := "1000000000[1,2]"
var output any
err := jsonutil.DecodeWithNumber(strings.NewReader(input), &output)
c.Assert(err, NotNil)
c.Assert(err, ErrorMatches, `cannot parse json value`)
}
func (s *utilSuite) TestDecodeSuccess(c *C) {
input := `{"a":1000000000, "b": 1.2, "c": "foo", "d":null}`
var output any
err := jsonutil.DecodeWithNumber(strings.NewReader(input), &output)
c.Assert(err, IsNil)
c.Assert(output, DeepEquals, map[string]any{
"a": json.Number("1000000000"),
"b": json.Number("1.2"),
"c": "foo",
"d": nil,
})
}
func (utilSuite) TestStructFields(c *C) {
type aStruct struct {
Foo int `json:"hello"`
Bar int `json:"potato,stuff"`
}
c.Assert(jsonutil.StructFields((*aStruct)(nil)), DeepEquals, []string{"hello", "potato"})
}
func (utilSuite) TestStructFieldsExcept(c *C) {
type aStruct struct {
Foo int `json:"hello"`
Bar int `json:"potato,stuff"`
}
c.Assert(jsonutil.StructFields((*aStruct)(nil), "potato"), DeepEquals, []string{"hello"})
c.Assert(jsonutil.StructFields((*aStruct)(nil), "hello"), DeepEquals, []string{"potato"})
}
func (utilSuite) TestStructFieldsSurvivesNoTag(c *C) {
type aStruct struct {
Foo int `json:"hello"`
Bar int
}
c.Assert(jsonutil.StructFields((*aStruct)(nil)), DeepEquals, []string{"hello"})
}
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