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package parser
import (
"archive/zip"
"bytes"
"context"
"encoding/json"
"io"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
func TestGenerate(t *testing.T) {
filePath := "testdata/dump.lsif.zip"
tmpDir := filePath + ".tmp"
defer os.RemoveAll(tmpDir)
createFiles(t, filePath, tmpDir)
verifyCorrectnessOf(t, tmpDir, "lsif/main.go.json")
verifyCorrectnessOf(t, tmpDir, "lsif/morestrings/reverse.go.json")
}
func verifyCorrectnessOf(t *testing.T, tmpDir, fileName string) {
file, err := ioutil.ReadFile(filepath.Join(tmpDir, fileName))
require.NoError(t, err)
var buf bytes.Buffer
require.NoError(t, json.Indent(&buf, file, "", " "))
expected, err := ioutil.ReadFile(filepath.Join("testdata/expected/", fileName))
require.NoError(t, err)
require.Equal(t, string(expected), buf.String())
}
func createFiles(t *testing.T, filePath, tmpDir string) {
t.Helper()
file, err := os.Open(filePath)
require.NoError(t, err)
parser, err := NewParser(context.Background(), file, Config{})
require.NoError(t, err)
zipFileName := tmpDir + ".zip"
w, err := os.Create(zipFileName)
require.NoError(t, err)
defer os.RemoveAll(zipFileName)
_, err = io.Copy(w, parser)
require.NoError(t, err)
require.NoError(t, parser.Close())
extractZipFiles(t, tmpDir, zipFileName)
}
func extractZipFiles(t *testing.T, tmpDir, zipFileName string) {
zipReader, err := zip.OpenReader(zipFileName)
require.NoError(t, err)
for _, file := range zipReader.Reader.File {
zippedFile, err := file.Open()
require.NoError(t, err)
defer zippedFile.Close()
fileDir, fileName := filepath.Split(file.Name)
require.NoError(t, os.MkdirAll(filepath.Join(tmpDir, fileDir), os.ModePerm))
outputFile, err := os.Create(filepath.Join(tmpDir, fileDir, fileName))
require.NoError(t, err)
defer outputFile.Close()
_, err = io.Copy(outputFile, zippedFile)
require.NoError(t, err)
}
}
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