src/lib/os/os_test.go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package os

import (
	"fmt";
	"os";
	"testing";
)

func size(file string, t *testing.T) uint64 {
	fd, err := Open(file, O_RDONLY, 0);
	defer fd.Close();
	if err != nil {
		t.Fatal("open failed:", err);
	}
	var buf [100]byte;
	len := 0;
	for {
		n, e := fd.Read(buf);
		if n < 0 || e != nil {
			t.Fatal("read failed:", err);
		}
		if n == 0 {
			break
		}
		len += n;
	}
	return uint64(len)
}

func TestStat(t *testing.T) {
	dir, err := Stat("/etc/passwd");
	if err != nil {
		t.Fatal("stat failed:", err);
	}
	if dir.Name != "passwd" {
		t.Error("name should be passwd; is", dir.Name);
	}
	filesize := size("/etc/passwd", t);
	if dir.Size != filesize {
		t.Error("size should be ", filesize, "; is", dir.Size);
	}
}

func TestFstat(t *testing.T) {
	fd, err1 := Open("/etc/passwd", O_RDONLY, 0);
	defer fd.Close();
	if err1 != nil {
		t.Fatal("open failed:", err1);
	}
	dir, err2 := Fstat(fd);
	if err2 != nil {
		t.Fatal("fstat failed:", err2);
	}
	if dir.Name != "passwd" {
		t.Error("name should be passwd; is", dir.Name);
	}
	filesize := size("/etc/passwd", t);
	if dir.Size != filesize {
		t.Error("size should be ", filesize, "; is", dir.Size);
	}
}

func TestLstat(t *testing.T) {
	dir, err := Lstat("/etc/passwd");
	if err != nil {
		t.Fatal("lstat failed:", err);
	}
	if dir.Name != "passwd" {
		t.Error("name should be passwd; is", dir.Name);
	}
	filesize := size("/etc/passwd", t);
	if dir.Size != filesize {
		t.Error("size should be ", filesize, "; is", dir.Size);
	}
}