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package sysctl
import (
"os"
"path/filepath"
"testing"
"github.com/google/go-cmp/cmp"
)
func TestNewClient(t *testing.T) {
cases := []struct {
name string
path string
ok bool
}{
{
name: "dir not found",
path: "testdata/client/not-found",
ok: false,
},
{
name: "file trailing slash",
path: "testdata/client/ok/f/",
ok: false,
},
{
name: "not a dir",
path: "testdata/client/ok/f",
ok: false,
},
{
name: "ok",
path: "testdata/client/ok",
ok: true,
},
{
name: "ok trailing slash",
path: "testdata/client/ok/",
ok: true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
cl, err := NewClient(c.path)
if c.ok && err != nil {
t.Fatalf("error parsing: %v", err)
}
if !c.ok && err == nil {
t.Fatal("expected error but it succeeded")
}
if err != nil {
t.Logf("err: %v", err)
return
}
if cl == nil {
t.Fatal("client unexpectedly nil")
}
})
}
}
func TestClient_pathFromKey(t *testing.T) {
cases := []struct {
base string
in string
expected string
}{
{
base: "/a/b/",
in: "net.ipv4.ip_forward",
expected: "/a/b/net/ipv4/ip_forward",
},
}
for _, c := range cases {
t.Run(c.in, func(t *testing.T) {
cl := Client{path: c.base}
got := cl.pathFromKey(c.in)
if got != c.expected {
t.Fatalf("expected: %s. Got: %s", c.expected, got)
}
})
}
}
func TestClient_keyFromPath(t *testing.T) {
cases := []struct {
base string
in string
expected string
}{
{
base: "/a/b/",
in: "/a/b/net/ipv4/ip_forward",
expected: "net.ipv4.ip_forward",
},
}
for _, c := range cases {
t.Run(c.in, func(t *testing.T) {
cl := Client{path: c.base}
got := cl.keyFromPath(c.in)
if got != c.expected {
t.Fatalf("expected: %s. Got: %s", c.expected, got)
}
})
}
}
func TestClientGet(t *testing.T) {
cases := []struct {
name string
path string
key string
val string
ok bool
}{
{
name: "missing key",
path: "testdata/client/nok",
key: "missing",
ok: false,
},
{
name: "ok root file",
path: "testdata/client/ok",
key: "f",
val: "value of f",
ok: true,
},
{
name: "ok one level",
path: "testdata/client/ok",
key: "d.f",
val: "value of d.f",
ok: true,
},
{
name: "ok two levels",
path: "testdata/client/ok",
key: "d.d.f1",
val: "value of d.d.f1",
ok: true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
cl, err := NewClient(c.path)
if err != nil {
t.Fatalf("could not create client: %v", err)
}
got, err := cl.Get(c.key)
if c.ok && err != nil {
t.Fatalf("error parsing: %v", err)
}
if !c.ok && err == nil {
t.Fatal("expected error but it succeeded")
}
if err != nil {
t.Logf("err: %v", err)
return
}
if got != c.val {
t.Fatalf("expected: %s. Got: %s", c.val, got)
}
})
}
}
func TestClientGetPattern(t *testing.T) {
cases := []struct {
name string
path string
pattern string
res map[string]string
ok bool
}{
{
name: "empty",
res: map[string]string{},
ok: true,
},
{
name: "match all",
path: "testdata/client/ok/",
pattern: "",
res: map[string]string{
"f": "value of f",
"d.f": "value of d.f",
"d.d.f1": "value of d.d.f1",
"d.d.f2": "value of d.d.f2",
},
ok: true,
},
{
name: "ok star match",
path: "testdata/client/ok/",
pattern: "d.*",
res: map[string]string{
"d.f": "value of d.f",
"d.d.f1": "value of d.d.f1",
"d.d.f2": "value of d.d.f2",
},
ok: true,
},
{
name: "ok single char match",
path: "testdata/client/ok/",
pattern: "d.d.f?",
res: map[string]string{
"d.d.f1": "value of d.d.f1",
"d.d.f2": "value of d.d.f2",
},
ok: true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
path := c.path
if path == "" {
path = t.TempDir()
defer os.RemoveAll(path)
}
cl, err := NewClient(path)
if err != nil {
t.Fatalf("could not create client: %v", err)
}
got, err := cl.GetPattern(c.pattern)
if c.ok && err != nil {
t.Fatalf("error parsing: %v", err)
}
if !c.ok && err == nil {
t.Fatal("expected error but it succeeded")
}
if err != nil {
t.Logf("err: %v", err)
return
}
if diff := cmp.Diff(c.res, got); diff != "" {
t.Fatalf("unexpected output (-want +got):\n%s", diff)
}
})
}
}
func TestClientGetAll(t *testing.T) {
cases := []struct {
name string
path string
res map[string]string
ok bool
}{
{
name: "empty",
res: map[string]string{},
ok: true,
},
{
name: "testdata/client/ok/",
path: "testdata/client/ok/",
res: map[string]string{
"f": "value of f",
"d.f": "value of d.f",
"d.d.f1": "value of d.d.f1",
"d.d.f2": "value of d.d.f2",
},
ok: true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
path := c.path
if path == "" {
path = t.TempDir()
defer os.RemoveAll(path)
}
cl, err := NewClient(path)
if err != nil {
t.Fatalf("could not create client: %v", err)
}
got, err := cl.GetAll()
if c.ok && err != nil {
t.Fatalf("error parsing: %v", err)
}
if !c.ok && err == nil {
t.Fatal("expected error but it succeeded")
}
if err != nil {
t.Logf("err: %v", err)
return
}
if diff := cmp.Diff(c.res, got); diff != "" {
t.Fatalf("unexpected output (-want +got):\n%s", diff)
}
})
}
}
func TestClientSet(t *testing.T) {
cases := []struct {
name string
path string
create []string
keys map[string]string
ok bool
}{
{
name: "ok",
create: []string{
"a",
"b/a",
"b/b/a",
},
keys: map[string]string{
"a": "value of a",
"b.a": "value of b.a",
"b.b.a": "value of b.b.a",
},
ok: true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
if c.path != "" && len(c.create) > 0 {
t.Fatal("can create files only in temporary test dirs, do not set path and create simultaneously")
}
path := c.path
if path == "" {
path = t.TempDir()
defer os.RemoveAll(path)
createTestFiles(t, path, c.create)
}
cl, err := NewClient(path)
if err != nil {
t.Fatalf("could not create client: %v", err)
}
for k, v := range c.keys {
err := cl.Set(k, v)
if c.ok && err != nil {
t.Fatalf("could not set %s=%s: %v", k, v, err)
}
if !c.ok && err == nil {
t.Fatal("expected error but it succeeded")
}
if err != nil {
t.Logf("err: %v", err)
return
}
}
for k, v := range c.keys {
got, err := cl.Get(k)
if err != nil {
t.Fatalf("could not get key %s: %v", k, err)
}
if got != v {
t.Fatalf("got wrong value for key %s: expected: %s, got %s", k, v, got)
}
}
})
}
}
func createTestFiles(t *testing.T, base string, paths []string) {
t.Helper()
for _, p := range paths {
p := filepath.Join(base, p)
dir := filepath.Dir(p)
if err := os.MkdirAll(dir, os.ModePerm); err != nil {
t.Fatalf("could not create dir %s: %v", dir, err)
}
f, err := os.Create(p)
if err != nil {
t.Fatalf("could not create file %s: %v", p, err)
}
_ = f.Close()
}
}
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