98 lines
2.3 KiB
Go
98 lines
2.3 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
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import (
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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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f, err := TempFile("", "ioutil-test")
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if err != nil {
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t.Fatal(err)
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}
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filename := f.Name()
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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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f.Close()
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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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/* Does not work in gccgo testing environment.
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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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foundFile := false
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foundSubDir := false
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for _, dir := range list {
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switch {
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case !dir.IsDir() && dir.Name() == "io_test.go":
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foundFile = true
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case dir.IsDir() && dir.Name() == "ioutil":
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foundSubDir = true
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}
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}
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if !foundFile {
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t.Fatalf("ReadDir %s: io_test.go file not found", dirname)
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}
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if !foundSubDir {
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t.Fatalf("ReadDir %s: ioutil directory not found", dirname)
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}
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*/
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}
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