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-rw-r--r--src/os/tempfile_test.go193
1 files changed, 193 insertions, 0 deletions
diff --git a/src/os/tempfile_test.go b/src/os/tempfile_test.go
new file mode 100644
index 0000000..e71a244
--- /dev/null
+++ b/src/os/tempfile_test.go
@@ -0,0 +1,193 @@
+// 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 os_test
+
+import (
+ "errors"
+ "io/fs"
+ . "os"
+ "path/filepath"
+ "regexp"
+ "strings"
+ "testing"
+)
+
+func TestCreateTemp(t *testing.T) {
+ dir, err := MkdirTemp("", "TestCreateTempBadDir")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer RemoveAll(dir)
+
+ nonexistentDir := filepath.Join(dir, "_not_exists_")
+ f, err := CreateTemp(nonexistentDir, "foo")
+ if f != nil || err == nil {
+ t.Errorf("CreateTemp(%q, `foo`) = %v, %v", nonexistentDir, f, err)
+ }
+}
+
+func TestCreateTempPattern(t *testing.T) {
+ tests := []struct{ pattern, prefix, suffix string }{
+ {"tempfile_test", "tempfile_test", ""},
+ {"tempfile_test*", "tempfile_test", ""},
+ {"tempfile_test*xyz", "tempfile_test", "xyz"},
+ }
+ for _, test := range tests {
+ f, err := CreateTemp("", test.pattern)
+ if err != nil {
+ t.Errorf("CreateTemp(..., %q) error: %v", test.pattern, err)
+ continue
+ }
+ defer Remove(f.Name())
+ base := filepath.Base(f.Name())
+ f.Close()
+ if !(strings.HasPrefix(base, test.prefix) && strings.HasSuffix(base, test.suffix)) {
+ t.Errorf("CreateTemp pattern %q created bad name %q; want prefix %q & suffix %q",
+ test.pattern, base, test.prefix, test.suffix)
+ }
+ }
+}
+
+func TestCreateTempBadPattern(t *testing.T) {
+ tmpDir, err := MkdirTemp("", t.Name())
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer RemoveAll(tmpDir)
+
+ const sep = string(PathSeparator)
+ tests := []struct {
+ pattern string
+ wantErr bool
+ }{
+ {"ioutil*test", false},
+ {"tempfile_test*foo", false},
+ {"tempfile_test" + sep + "foo", true},
+ {"tempfile_test*" + sep + "foo", true},
+ {"tempfile_test" + sep + "*foo", true},
+ {sep + "tempfile_test" + sep + "*foo", true},
+ {"tempfile_test*foo" + sep, true},
+ }
+ for _, tt := range tests {
+ t.Run(tt.pattern, func(t *testing.T) {
+ tmpfile, err := CreateTemp(tmpDir, tt.pattern)
+ if tmpfile != nil {
+ defer tmpfile.Close()
+ }
+ if tt.wantErr {
+ if err == nil {
+ t.Errorf("CreateTemp(..., %#q) succeeded, expected error", tt.pattern)
+ }
+ if !errors.Is(err, ErrPatternHasSeparator) {
+ t.Errorf("CreateTemp(..., %#q): %v, expected ErrPatternHasSeparator", tt.pattern, err)
+ }
+ } else if err != nil {
+ t.Errorf("CreateTemp(..., %#q): %v", tt.pattern, err)
+ }
+ })
+ }
+}
+
+func TestMkdirTemp(t *testing.T) {
+ name, err := MkdirTemp("/_not_exists_", "foo")
+ if name != "" || err == nil {
+ t.Errorf("MkdirTemp(`/_not_exists_`, `foo`) = %v, %v", name, err)
+ }
+
+ tests := []struct {
+ pattern string
+ wantPrefix, wantSuffix string
+ }{
+ {"tempfile_test", "tempfile_test", ""},
+ {"tempfile_test*", "tempfile_test", ""},
+ {"tempfile_test*xyz", "tempfile_test", "xyz"},
+ }
+
+ dir := filepath.Clean(TempDir())
+
+ runTestMkdirTemp := func(t *testing.T, pattern, wantRePat string) {
+ name, err := MkdirTemp(dir, pattern)
+ if name == "" || err != nil {
+ t.Fatalf("MkdirTemp(dir, `tempfile_test`) = %v, %v", name, err)
+ }
+ defer Remove(name)
+
+ re := regexp.MustCompile(wantRePat)
+ if !re.MatchString(name) {
+ t.Errorf("MkdirTemp(%q, %q) created bad name\n\t%q\ndid not match pattern\n\t%q", dir, pattern, name, wantRePat)
+ }
+ }
+
+ for _, tt := range tests {
+ t.Run(tt.pattern, func(t *testing.T) {
+ wantRePat := "^" + regexp.QuoteMeta(filepath.Join(dir, tt.wantPrefix)) + "[0-9]+" + regexp.QuoteMeta(tt.wantSuffix) + "$"
+ runTestMkdirTemp(t, tt.pattern, wantRePat)
+ })
+ }
+
+ // Separately testing "*xyz" (which has no prefix). That is when constructing the
+ // pattern to assert on, as in the previous loop, using filepath.Join for an empty
+ // prefix filepath.Join(dir, ""), produces the pattern:
+ // ^<DIR>[0-9]+xyz$
+ // yet we just want to match
+ // "^<DIR>/[0-9]+xyz"
+ t.Run("*xyz", func(t *testing.T) {
+ wantRePat := "^" + regexp.QuoteMeta(filepath.Join(dir)) + regexp.QuoteMeta(string(filepath.Separator)) + "[0-9]+xyz$"
+ runTestMkdirTemp(t, "*xyz", wantRePat)
+ })
+}
+
+// test that we return a nice error message if the dir argument to TempDir doesn't
+// exist (or that it's empty and TempDir doesn't exist)
+func TestMkdirTempBadDir(t *testing.T) {
+ dir, err := MkdirTemp("", "MkdirTempBadDir")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer RemoveAll(dir)
+
+ badDir := filepath.Join(dir, "not-exist")
+ _, err = MkdirTemp(badDir, "foo")
+ if pe, ok := err.(*fs.PathError); !ok || !IsNotExist(err) || pe.Path != badDir {
+ t.Errorf("TempDir error = %#v; want PathError for path %q satisifying IsNotExist", err, badDir)
+ }
+}
+
+func TestMkdirTempBadPattern(t *testing.T) {
+ tmpDir, err := MkdirTemp("", t.Name())
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer RemoveAll(tmpDir)
+
+ const sep = string(PathSeparator)
+ tests := []struct {
+ pattern string
+ wantErr bool
+ }{
+ {"ioutil*test", false},
+ {"tempfile_test*foo", false},
+ {"tempfile_test" + sep + "foo", true},
+ {"tempfile_test*" + sep + "foo", true},
+ {"tempfile_test" + sep + "*foo", true},
+ {sep + "tempfile_test" + sep + "*foo", true},
+ {"tempfile_test*foo" + sep, true},
+ }
+ for _, tt := range tests {
+ t.Run(tt.pattern, func(t *testing.T) {
+ _, err := MkdirTemp(tmpDir, tt.pattern)
+ if tt.wantErr {
+ if err == nil {
+ t.Errorf("MkdirTemp(..., %#q) succeeded, expected error", tt.pattern)
+ }
+ if !errors.Is(err, ErrPatternHasSeparator) {
+ t.Errorf("MkdirTemp(..., %#q): %v, expected ErrPatternHasSeparator", tt.pattern, err)
+ }
+ } else if err != nil {
+ t.Errorf("MkdirTemp(..., %#q): %v", tt.pattern, err)
+ }
+ })
+ }
+}