Retro68/gcc/libgo/go/io/ioutil/tempfile_test.go
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

86 lines
2.4 KiB
Go

// Copyright 2010 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 ioutil
import (
"os"
"path/filepath"
"regexp"
"strings"
"testing"
)
func TestTempFile(t *testing.T) {
dir, err := TempDir("", "TestTempFile_BadDir")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
nonexistentDir := filepath.Join(dir, "_not_exists_")
f, err := TempFile(nonexistentDir, "foo")
if f != nil || err == nil {
t.Errorf("TempFile(%q, `foo`) = %v, %v", nonexistentDir, f, err)
}
}
func TestTempFile_pattern(t *testing.T) {
tests := []struct{ pattern, prefix, suffix string }{
{"ioutil_test", "ioutil_test", ""},
{"ioutil_test*", "ioutil_test", ""},
{"ioutil_test*xyz", "ioutil_test", "xyz"},
}
for _, test := range tests {
f, err := TempFile("", test.pattern)
if err != nil {
t.Errorf("TempFile(..., %q) error: %v", test.pattern, err)
continue
}
defer os.Remove(f.Name())
base := filepath.Base(f.Name())
f.Close()
if !(strings.HasPrefix(base, test.prefix) && strings.HasSuffix(base, test.suffix)) {
t.Errorf("TempFile pattern %q created bad name %q; want prefix %q & suffix %q",
test.pattern, base, test.prefix, test.suffix)
}
}
}
func TestTempDir(t *testing.T) {
name, err := TempDir("/_not_exists_", "foo")
if name != "" || err == nil {
t.Errorf("TempDir(`/_not_exists_`, `foo`) = %v, %v", name, err)
}
dir := os.TempDir()
name, err = TempDir(dir, "ioutil_test")
if name == "" || err != nil {
t.Errorf("TempDir(dir, `ioutil_test`) = %v, %v", name, err)
}
if name != "" {
os.Remove(name)
re := regexp.MustCompile("^" + regexp.QuoteMeta(filepath.Join(dir, "ioutil_test")) + "[0-9]+$")
if !re.MatchString(name) {
t.Errorf("TempDir(`"+dir+"`, `ioutil_test`) created bad name %s", name)
}
}
}
// test that we return a nice error message if the dir argument to TempDir doesn't
// exist (or that it's empty and os.TempDir doesn't exist)
func TestTempDir_BadDir(t *testing.T) {
dir, err := TempDir("", "TestTempDir_BadDir")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
badDir := filepath.Join(dir, "not-exist")
_, err = TempDir(badDir, "foo")
if pe, ok := err.(*os.PathError); !ok || !os.IsNotExist(err) || pe.Path != badDir {
t.Errorf("TempDir error = %#v; want PathError for path %q satisifying os.IsNotExist", err, badDir)
}
}