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// Copyright 2021 Bret Jordan & Benedikt Thoma, All rights reserved.
// Copyright 2006-2019 WebPKI.org (http://webpki.org).
//
// Use of this source code is governed by an Apache 2.0 license that can be
// found in the LICENSE file in the root of the source tree.
package jcs
import (
"bytes"
"fmt"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
const (
pathTestData = "./testdata"
pathInputRelativeToTestData = "/input"
pathOutputRelativeToTestData = "/output"
)
func failedBecause(errormsg string) string {
return fmt.Sprintf("Failed because %s", errormsg)
}
func errorOccurred(activity string, err error) string {
return failedBecause(fmt.Sprintf("an error occurred while %s: %s\n", activity, err))
}
func doesNotMatchExpected(expectedField, expectedValue, actualField, actualValue string) string {
return failedBecause(
fmt.Sprintf(
"%s [%s] does not match expected %s [%s]\n",
actualField,
actualValue,
expectedField,
expectedValue,
),
)
}
func TestTransform(t *testing.T) {
testCases := []struct {
desc string
filename string
}{
{
desc: "Null",
filename: "null.json",
},
{
desc: "True",
filename: "true.json",
},
{
desc: "False",
filename: "false.json",
},
{
desc: "Arrays",
filename: "arrays.json",
},
{
desc: "French",
filename: "french.json",
},
{
desc: "SimpleString",
filename: "simpleString.json",
},
{
desc: "Structures",
filename: "structures.json",
},
{
desc: "Unicode",
filename: "unicode.json",
},
{
desc: "Values",
filename: "values.json",
},
{
desc: "Weird",
filename: "weird.json",
},
}
for _, tC := range testCases {
t.Run(tC.desc, func(t *testing.T) {
tC := tC
t.Parallel()
r := require.New(t)
input, err := os.ReadFile(filepath.Join(pathTestData,
pathInputRelativeToTestData, tC.filename))
r.NoError(err, errorOccurred("reading test input json", err))
output, err := os.ReadFile(filepath.Join(pathTestData,
pathOutputRelativeToTestData, tC.filename))
r.NoError(err, errorOccurred("reading expected transformed output sample", err))
transformed, err := Transform(input)
r.NoError(err, errorOccurred("transforming test input", err))
twiceTransformed, err := Transform(input)
r.NoError(err, errorOccurred("transforming transformed input", err))
r.True(
bytes.Equal(transformed, output),
doesNotMatchExpected(
"JSON",
string(output),
"transformed JSON",
string(transformed),
),
)
r.True(
bytes.Equal(twiceTransformed, transformed),
doesNotMatchExpected(
"transformed JSON",
string(transformed),
"twice transformed JSON",
string(twiceTransformed),
),
)
})
}
}
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