mirror of
https://github.com/golang/go
synced 2024-10-05 00:11:21 -06:00
8dce57e169
R=golang-dev, r, r, gri, bradfitz, iant, iant, nigeltao, n13m3y3r CC=golang-dev https://golang.org/cl/5416060
92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ioutil_test
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import (
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. "io/ioutil"
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"os"
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"testing"
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)
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func checkSize(t *testing.T, path string, size int64) {
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dir, err := os.Stat(path)
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if err != nil {
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t.Fatalf("Stat %q (looking for size %d): %s", path, size, err)
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}
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if dir.Size() != size {
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t.Errorf("Stat %q: size %d want %d", path, dir.Size(), size)
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}
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}
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func TestReadFile(t *testing.T) {
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filename := "rumpelstilzchen"
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contents, err := ReadFile(filename)
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if err == nil {
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t.Fatalf("ReadFile %s: error expected, none found", filename)
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}
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filename = "ioutil_test.go"
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contents, err = ReadFile(filename)
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if err != nil {
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t.Fatalf("ReadFile %s: %v", filename, err)
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}
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checkSize(t, filename, int64(len(contents)))
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}
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func TestWriteFile(t *testing.T) {
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filename := "_test/rumpelstilzchen"
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data := "Programming today is a race between software engineers striving to " +
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"build bigger and better idiot-proof programs, and the Universe trying " +
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"to produce bigger and better idiots. So far, the Universe is winning."
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if err := WriteFile(filename, []byte(data), 0644); err != nil {
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t.Fatalf("WriteFile %s: %v", filename, err)
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}
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contents, err := ReadFile(filename)
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if err != nil {
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t.Fatalf("ReadFile %s: %v", filename, err)
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}
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if string(contents) != data {
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t.Fatalf("contents = %q\nexpected = %q", string(contents), data)
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}
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// cleanup
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os.Remove(filename) // ignore error
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}
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func TestReadDir(t *testing.T) {
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dirname := "rumpelstilzchen"
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_, err := ReadDir(dirname)
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if err == nil {
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t.Fatalf("ReadDir %s: error expected, none found", dirname)
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}
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dirname = "."
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list, err := ReadDir(dirname)
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if err != nil {
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t.Fatalf("ReadDir %s: %v", dirname, err)
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}
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foundTest := false
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foundTestDir := false
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for _, dir := range list {
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switch {
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case !dir.IsDir() && dir.Name() == "ioutil_test.go":
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foundTest = true
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case dir.IsDir() && dir.Name() == "_test":
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foundTestDir = true
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}
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}
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if !foundTest {
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t.Fatalf("ReadDir %s: test file not found", dirname)
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}
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if !foundTestDir {
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t.Fatalf("ReadDir %s: _test directory not found", dirname)
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}
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}
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