Use check() to improve error check (denoland#139)

deno_dir_test.go

@@ -9,9 +9,7 @@ import (
 
 func SetCacheDirForTest(prefix string) {
  dir, err := ioutil.TempDir("", prefix)
- if err != nil {
- panic(err)
- }
+ check(err)
  CacheDir = dir
 }
 

integration_test.go

@@ -21,22 +21,17 @@ var denoFn string
 // so if the server runs on a different port, it will fail.
 func startServer() {
  l, err := net.Listen("tcp", ":4545")
- if err != nil {
- panic(err)
- }
+ check(err)
  rootHandler := http.FileServer(http.Dir("."))
  go func() {
- if err := http.Serve(l, rootHandler); err != nil {
- panic(err)
- }
+ err := http.Serve(l, rootHandler)
+ check(err)
  }()
 }
 
 func listTestFiles() []string {
  files, err := ioutil.ReadDir("testdata")
- if err != nil {
- panic(err)
- }
+ check(err)
  out := make([]string, 0)
  for _, file := range files {
  fn := file.Name()
@@ -72,9 +67,7 @@ func checkOutput(t *testing.T, outFile string, shouldSucceed bool) {
 
 func deno(inputFn string) (actual []byte, cachedir string, err error) {
  cachedir, err = ioutil.TempDir("", "TestIntegration")
- if err != nil {
- panic(err)
- }
+ check(err)
 
  cmd := exec.Command(denoFn, "--cachedir="+cachedir, inputFn)
  var out bytes.Buffer
@@ -89,9 +82,7 @@ func integrationTestSetup() {
  if denoFn == "" {
  startServer()
  cwd, err := os.Getwd()
- if err != nil {
- panic(err)
- }
+ check(err)
  denoFn = path.Join(cwd, "deno")
  }
 }

main.go

@@ -76,9 +76,7 @@ func Init() {
  // Use --prof for profiling JS.
  if *flagGoProf != "" {
  f, err := os.Create(*flagGoProf)
- if err != nil {
- panic(err)
- }
+ check(err)
  pprof.StartCPUProfile(f)
  defer pprof.StopCPUProfile()
  }