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package jsonutil
import (
"encoding/json"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
func TestRoundTripJSON(t *testing.T) {
dir := t.TempDir()
file := filepath.Join(dir, "test.json")
data := &jsonTestData{A: "yay", B: 3}
err := WriteJSON(file, data, 0o755)
require.NoError(t, err)
// Confirm the file is uncompressed
fileContent, err := os.ReadFile(file)
require.NoError(t, err)
err = json.Unmarshal(fileContent, &jsonTestData{})
require.NoError(t, err)
var result *jsonTestData
result, err = LoadJSON[jsonTestData](file)
require.NoError(t, err)
require.EqualValues(t, data, result)
}
func TestRoundTripJSONWithGzip(t *testing.T) {
dir := t.TempDir()
file := filepath.Join(dir, "test.json.gz")
data := &jsonTestData{A: "yay", B: 3}
err := WriteJSON(file, data, 0o755)
require.NoError(t, err)
// Confirm the file isn't raw JSON
fileContent, err := os.ReadFile(file)
require.NoError(t, err)
err = json.Unmarshal(fileContent, &jsonTestData{})
require.Error(t, err, "should not be able to decode without decompressing")
var result *jsonTestData
result, err = LoadJSON[jsonTestData](file)
require.NoError(t, err)
require.EqualValues(t, data, result)
}
type jsonTestData struct {
A string `json:"a"`
B int `json:"b"`
}