diff options
Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/getdirentries_test.go | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/getdirentries_test.go b/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/getdirentries_test.go new file mode 100644 index 0000000..6f78e49 --- /dev/null +++ b/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/getdirentries_test.go @@ -0,0 +1,84 @@ +// Copyright 2019 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. + +//go:build darwin || dragonfly || freebsd || openbsd || netbsd || zos +// +build darwin dragonfly freebsd openbsd netbsd zos + +package unix_test + +import ( + "fmt" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strings" + "testing" + + "golang.org/x/sys/unix" +) + +func TestGetdirentries(t *testing.T) { + for _, count := range []int{10, 1000} { + t.Run(fmt.Sprintf("n=%d", count), func(t *testing.T) { + testGetdirentries(t, count) + }) + } +} +func testGetdirentries(t *testing.T, count int) { + if count > 100 && testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" { + t.Skip("skipping in -short mode") + } + d, err := ioutil.TempDir("", "getdirentries-test") + if err != nil { + t.Fatalf("Tempdir: %v", err) + } + defer os.RemoveAll(d) + var names []string + for i := 0; i < count; i++ { + names = append(names, fmt.Sprintf("file%03d", i)) + } + + // Make files in the temp directory + for _, name := range names { + err := ioutil.WriteFile(filepath.Join(d, name), []byte("data"), 0) + if err != nil { + t.Fatalf("WriteFile: %v", err) + } + } + + // Read files using Getdirentries + fd, err := unix.Open(d, unix.O_RDONLY, 0) + if err != nil { + t.Fatalf("Open: %v", err) + } + defer unix.Close(fd) + var base uintptr + var buf [2048]byte + names2 := make([]string, 0, count) + for { + n, err := unix.Getdirentries(fd, buf[:], &base) + if err != nil { + t.Fatalf("Getdirentries: %v", err) + } + if n == 0 { + break + } + data := buf[:n] + for len(data) > 0 { + var bc int + bc, _, names2 = unix.ParseDirent(data, -1, names2) + if bc == 0 && len(data) > 0 { + t.Fatal("no progress") + } + data = data[bc:] + } + } + + sort.Strings(names) + sort.Strings(names2) + if strings.Join(names, ":") != strings.Join(names2, ":") { + t.Errorf("names don't match\n names: %q\nnames2: %q", names, names2) + } +} |