зеркало из https://github.com/golang/leveldb.git
leveldb: rewrite memfs_test's TestBasics as a table-driven test.
R=dsymonds CC=golang-dev http://codereview.appspot.com/6446099
This commit is contained in:
Nigel Tao
Родитель
fef388c053
Коммит
ec742c6ae6
|
|
@ -8,6 +8,7 @@ import (
|
|||
"io"
|
||||
"os"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
|
|
@ -22,157 +23,129 @@ func normalize(name string) string {
|
|||
}
|
||||
|
||||
func TestBasics(t *testing.T) {
|
||||
var (
|
||||
fs = New()
|
||||
f, g db.File
|
||||
fi os.FileInfo
|
||||
buf [16]byte
|
||||
n int
|
||||
)
|
||||
fs := New()
|
||||
testCases := []string{
|
||||
// Create a top-level file.
|
||||
"1a: create /foo",
|
||||
// Create a child of that file. It should fail, since /foo is not a directory.
|
||||
"2a: create /foo/x fails",
|
||||
// Create a third-level file. It should fail, since /bar has not been created.
|
||||
// Similarly, opening that file should fail.
|
||||
"3a: create /bar/baz/y fails",
|
||||
"3b: open /bar/baz/y fails",
|
||||
// Make the /bar/baz directory; create a third-level file. Creation should now succeed.
|
||||
"4a: mkdirall /bar/baz",
|
||||
"4b: f = create /bar/baz/y",
|
||||
"4c: f.stat.name == y",
|
||||
// Write some data; read it back.
|
||||
"5a: f.write abcde",
|
||||
"5b: f.close",
|
||||
"5c: f = open /bar/baz/y",
|
||||
"5d: f.read 5 == abcde",
|
||||
"5e: f.readat 2 1 == bc",
|
||||
"5f: f.close",
|
||||
// Remove the file twice. The first should succeed, the second should fail.
|
||||
"6a: remove /bar/baz/y",
|
||||
"6b: remove /bar/baz/y fails",
|
||||
"6c: open /bar/baz/y fails",
|
||||
// Rename /foo to /goo. Trying to open /foo should succeed before the rename and
|
||||
// fail afterwards, and vice versa for /goo.
|
||||
"7a: open /foo",
|
||||
"7b: open /goo fails",
|
||||
"7c: rename /foo /goo",
|
||||
"7d: open /foo fails",
|
||||
"7e: open /goo",
|
||||
// Create /bar/baz/z and rename /bar/baz to /bar/caz.
|
||||
"8a: create /bar/baz/z",
|
||||
"8b: open /bar/baz/z",
|
||||
"8c: open /bar/caz/z fails",
|
||||
"8d: rename /bar/baz /bar/caz",
|
||||
"8e: open /bar/baz/z fails",
|
||||
"8f: open /bar/caz/z",
|
||||
}
|
||||
var f db.File
|
||||
for _, tc := range testCases {
|
||||
s := strings.Split(tc, " ")[1:]
|
||||
|
||||
// Create a top-level file.
|
||||
f, err := fs.Create(normalize("/foo"))
|
||||
if err != nil {
|
||||
t.Fatalf("1a: Create: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
saveF := s[0] == "f" && s[1] == "="
|
||||
if saveF {
|
||||
s = s[2:]
|
||||
}
|
||||
|
||||
// Create a child of that file. It should fail, since /foo is not a directory.
|
||||
_, err = fs.Create(normalize("/foo/x"))
|
||||
if err == nil {
|
||||
t.Fatalf("2a: Create: got nil error, want non-nil")
|
||||
}
|
||||
fails := s[len(s)-1] == "fails"
|
||||
if fails {
|
||||
s = s[:len(s)-1]
|
||||
}
|
||||
|
||||
// Create a third-level file. It should fail, since /bar has not been created.
|
||||
// Similarly, opening that file should fail.
|
||||
_, err = fs.Create(normalize("/bar/baz/y"))
|
||||
if err == nil {
|
||||
t.Fatalf("3a: Create: got nil error, want non-nil")
|
||||
}
|
||||
_, err = fs.Open(normalize("/bar/baz/y"))
|
||||
if err == nil {
|
||||
t.Fatalf("3b: Open: got nil error, want non-nil")
|
||||
}
|
||||
var (
|
||||
fi os.FileInfo
|
||||
g db.File
|
||||
err error
|
||||
)
|
||||
switch s[0] {
|
||||
case "create":
|
||||
g, err = fs.Create(normalize(s[1]))
|
||||
case "open":
|
||||
g, err = fs.Open(normalize(s[1]))
|
||||
case "mkdirall":
|
||||
err = fs.MkdirAll(normalize(s[1]), 0755)
|
||||
case "remove":
|
||||
err = fs.Remove(normalize(s[1]))
|
||||
case "rename":
|
||||
err = fs.Rename(normalize(s[1]), normalize(s[2]))
|
||||
case "f.write":
|
||||
_, err = f.Write([]byte(s[1]))
|
||||
case "f.read":
|
||||
n, _ := strconv.Atoi(s[1])
|
||||
buf := make([]byte, n)
|
||||
_, err = io.ReadFull(f, buf)
|
||||
if err != nil {
|
||||
break
|
||||
}
|
||||
if got, want := string(buf), s[3]; got != want {
|
||||
t.Fatalf("%q: got %q, want %q", tc, got, want)
|
||||
}
|
||||
case "f.readat":
|
||||
n, _ := strconv.Atoi(s[1])
|
||||
off, _ := strconv.Atoi(s[2])
|
||||
buf := make([]byte, n)
|
||||
_, err = f.ReadAt(buf, int64(off))
|
||||
if err != nil {
|
||||
break
|
||||
}
|
||||
if got, want := string(buf), s[4]; got != want {
|
||||
t.Fatalf("%q: got %q, want %q", tc, got, want)
|
||||
}
|
||||
case "f.close":
|
||||
f, err = nil, f.Close()
|
||||
case "f.stat.name":
|
||||
fi, err = f.Stat()
|
||||
if err != nil {
|
||||
break
|
||||
}
|
||||
if got, want := fi.Name(), s[2]; got != want {
|
||||
t.Fatalf("%q: got %q, want %q", tc, got, want)
|
||||
}
|
||||
default:
|
||||
t.Fatalf("bad test case: %q", tc)
|
||||
}
|
||||
|
||||
// Make the /bar/baz directory; create a third-level file. Creation should now succeed.
|
||||
err = fs.MkdirAll(normalize("/bar/baz/"), 0755)
|
||||
if err != nil {
|
||||
t.Fatalf("4a: MkdirAll: %v", err)
|
||||
}
|
||||
f, err = fs.Create(normalize("/bar/baz/y"))
|
||||
if err != nil {
|
||||
t.Fatalf("4b: Create: %v", err)
|
||||
}
|
||||
fi, err = f.Stat()
|
||||
if err != nil {
|
||||
t.Fatalf("4c: Stat: %v", err)
|
||||
}
|
||||
if got, want := fi.Name(), "y"; got != want {
|
||||
t.Fatalf("4d: Name: got %q, want %q", got, want)
|
||||
}
|
||||
if saveF {
|
||||
f, g = g, nil
|
||||
} else if g != nil {
|
||||
g.Close()
|
||||
}
|
||||
|
||||
// Write some data; read it back.
|
||||
_, err = f.Write([]byte("ABCDE"))
|
||||
if err != nil {
|
||||
t.Fatalf("5a: Write: %v", err)
|
||||
if fails {
|
||||
if err == nil {
|
||||
t.Fatalf("%q: got nil error, want non-nil", tc)
|
||||
}
|
||||
} else {
|
||||
if err != nil {
|
||||
t.Fatalf("%q: %v", tc, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
err = f.Close()
|
||||
if err != nil {
|
||||
t.Fatalf("5b: Close: %v", err)
|
||||
}
|
||||
g, err = fs.Open(normalize("/bar/baz/y"))
|
||||
if err != nil {
|
||||
t.Fatalf("5c: Open: %v", err)
|
||||
}
|
||||
n, err = io.ReadFull(g, buf[:5])
|
||||
if err != nil {
|
||||
t.Fatalf("5d: ReadFull: %v", err)
|
||||
}
|
||||
if n != 5 {
|
||||
t.Fatalf("5e: ReadFull: got %d, want %d", n, 5)
|
||||
}
|
||||
n, err = g.ReadAt(buf[5:8], 0)
|
||||
if err != nil {
|
||||
t.Fatalf("5f: ReadAt: %v", err)
|
||||
}
|
||||
if n != 3 {
|
||||
t.Fatalf("5g: ReadAt: got %d, want %d", n, 3)
|
||||
}
|
||||
if got, want := string(buf[:8]), "ABCDEABC"; got != want {
|
||||
t.Fatalf("5h: ReadAt: got %q, want %q", got, want)
|
||||
}
|
||||
err = g.Close()
|
||||
if err != nil {
|
||||
t.Fatalf("5i: Close: %v", err)
|
||||
}
|
||||
|
||||
// Remove the file twice. The first should succeed, the second should fail.
|
||||
err = fs.Remove(normalize("/bar/baz/y"))
|
||||
if err != nil {
|
||||
t.Fatalf("6a: Remove: %v", err)
|
||||
}
|
||||
err = fs.Remove(normalize("/bar/baz/y"))
|
||||
if err == nil {
|
||||
t.Fatalf("6b: Remove: got nil error, want non-nil")
|
||||
}
|
||||
_, err = fs.Open(normalize("/bar/baz/y"))
|
||||
if err == nil {
|
||||
t.Fatalf("6c: Open: got nil error, want non-nil")
|
||||
}
|
||||
|
||||
// Rename /foo to /goo. Trying to open /foo should succeed before the rename and
|
||||
// fail afterwards, and vice versa for /goo.
|
||||
f, err = fs.Open(normalize("/foo"))
|
||||
if err != nil {
|
||||
t.Fatalf("7a: Open: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
_, err = fs.Open(normalize("/goo"))
|
||||
if err == nil {
|
||||
t.Fatalf("7b: Open: got nil error, want non-nil")
|
||||
}
|
||||
err = fs.Rename(normalize("/foo"), normalize("/goo"))
|
||||
if err != nil {
|
||||
t.Fatalf("7c: Rename: %v", err)
|
||||
}
|
||||
_, err = fs.Open(normalize("/foo"))
|
||||
if err == nil {
|
||||
t.Fatalf("7d: Open: got nil error, want non-nil")
|
||||
}
|
||||
f, err = fs.Open(normalize("/goo"))
|
||||
if err != nil {
|
||||
t.Fatalf("7e: Open: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
|
||||
// Create /bar/baz/z and rename /bar/baz to /bar/caz.
|
||||
f, err = fs.Create(normalize("/bar/baz/z"))
|
||||
if err != nil {
|
||||
t.Fatalf("8a: Create: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
f, err = fs.Open(normalize("/bar/baz/z"))
|
||||
if err != nil {
|
||||
t.Fatalf("8b: Open: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
_, err = fs.Open(normalize("/bar/caz/z"))
|
||||
if err == nil {
|
||||
t.Fatalf("8c: Open: got nil error, want non-nil")
|
||||
}
|
||||
err = fs.Rename(normalize("/bar/baz"), normalize("/bar/caz"))
|
||||
if err != nil {
|
||||
t.Fatalf("8d: Rename: %v", err)
|
||||
}
|
||||
_, err = fs.Open(normalize("/bar/baz/z"))
|
||||
if err == nil {
|
||||
t.Fatalf("8e: Open: got nil error, want non-nil")
|
||||
}
|
||||
f, err = fs.Open(normalize("/bar/caz/z"))
|
||||
if err != nil {
|
||||
t.Fatalf("8f: Open: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
}
|
||||
|
||||
func TestList(t *testing.T) {
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче