func TestMakeDirs(t *testing.T) {
// skip exists `parent` and create `child`
conn := &mockConn{}
conn.On("Exists", "/parent").Return(true, nil, nil).Once()
conn.On("Exists", "/parent/child").Return(false, nil, nil).Once()
conn.On("Create", "/parent/child", []byte{}, int32(PERSISTENT), OPEN_ACL_UNSAFE).Return("", nil).Once()
assert.NoError(t, MakeDirs(conn, "/parent/child/node", false, nil))
conn.AssertExpectations(t)
// fail to create `parent`
conn = &mockConn{}
conn.On("Exists", "/parent").Return(true, nil, zk.ErrAPIError).Once()
assert.EqualError(t, MakeDirs(conn, "/parent/child/node", false, nil), zk.ErrAPIError.Error())
conn.AssertExpectations(t)
// create `child` which exists
conn = &mockConn{}
conn.On("Exists", "/parent").Return(true, nil, nil).Once()
conn.On("Exists", "/parent/child").Return(false, nil, nil).Once()
conn.On("Create", "/parent/child", []byte{}, int32(PERSISTENT), OPEN_ACL_UNSAFE).Return("", zk.ErrNodeExists).Once()
assert.NoError(t, MakeDirs(conn, "/parent/child/node", false, nil))
conn.AssertExpectations(t)
// create `child` with default ACLs
conn = &mockConn{}
acls := &mockACLProvider{}
conn.On("Exists", "/parent").Return(true, nil, nil).Once()
conn.On("Exists", "/parent/child").Return(false, nil, nil).Once()
acls.On("GetAclForPath", "/parent/child").Return([]zk.ACL{}).Once()
acls.On("GetDefaultAcl").Return(zk.AuthACL(zk.PermAdmin)).Once()
conn.On("Create", "/parent/child", []byte{}, int32(PERSISTENT), zk.AuthACL(zk.PermAdmin)).Return("", nil).Once()
assert.NoError(t, MakeDirs(conn, "/parent/child/node", false, acls))
conn.AssertExpectations(t)
acls.AssertExpectations(t)
}
func TestTransaction(t *testing.T) {
newMockContainer().WithNamespace("parent").Test(t, func(client CuratorFramework, conn *mockConn, compress *mockCompressionProvider, version int32) {
acls := zk.AuthACL(zk.PermRead)
compress.On("Compress", "/node1", []byte("default")).Return([]byte("compressed(default)"), nil).Once()
compress.On("Compress", "/node3", []byte("data")).Return([]byte("compressed(data)"), nil).Once()
conn.On("Exists", "/parent").Return(true, nil, nil).Once()
conn.On("Multi", mock.Anything).Return([]zk.MultiResponse{
{Stat: nil, String: "/parent/node1"},
{Stat: nil, String: ""},
{Stat: &zk.Stat{}, String: ""},
{Stat: nil, String: ""},
}, nil).Once()
results, err := client.InTransaction().
Create().WithMode(PERSISTENT_SEQUENTIAL).WithACL(acls...).Compressed().ForPath("/node1").
Delete().WithVersion(version).ForPath("/node2").
SetData().WithVersion(version+1).Compressed().ForPathWithData("/node3", []byte("data")).
Check().WithVersion(version + 2).ForPath("/node4").
Commit()
assert.NoError(t, err)
assert.Equal(t, conn.operations, []interface{}{
&zk.CreateRequest{
Path: "/parent/node1",
Data: []byte("compressed(default)"),
Acl: acls,
Flags: int32(PERSISTENT_SEQUENTIAL),
},
&zk.DeleteRequest{
Path: "/parent/node2",
Version: version,
},
&zk.SetDataRequest{
Path: "/parent/node3",
Data: []byte("compressed(data)"),
Version: version + 1,
},
&zk.CheckVersionRequest{
Path: "/parent/node4",
Version: version + 2,
},
})
assert.Equal(t, results, []TransactionResult{
{
Type: OP_CREATE,
ForPath: "/parent/node1",
ResultPath: "/node1",
},
{
Type: OP_DELETE,
ForPath: "/parent/node2",
},
{
Type: OP_SET_DATA,
ForPath: "/parent/node3",
ResultStat: &zk.Stat{},
},
{
Type: OP_CHECK,
ForPath: "/parent/node4",
},
})
})
}
func (c *mockContainer) Test(t *testing.T, callback interface{}) {
var client CuratorFramework
var events chan zk.Event
var wg *sync.WaitGroup
zookeeperConnection := &mockConn{log: t.Logf}
zookeeperDialer := &mockZookeeperDialer{log: t.Logf}
ensembleProvider := &mockEnsembleProvider{}
compressionProvider := &mockCompressionProvider{log: t.Logf}
retryPolicy := &mockRetryPolicy{log: t.Logf}
aclProvider := &mockACLProvider{log: t.Logf}
data := []byte("data")
version := rand.Int31()
stat := &zk.Stat{Version: version, Mtime: time.Now().Unix()}
acls := zk.AuthACL(zk.PermRead)
if c.builder.ZookeeperDialer == nil {
c.builder.ZookeeperDialer = zookeeperDialer
}
if c.builder.EnsembleProvider == nil {
c.builder.EnsembleProvider = ensembleProvider
}
if c.builder.CompressionProvider == nil {
c.builder.CompressionProvider = compressionProvider
}
if c.builder.RetryPolicy == nil {
c.builder.RetryPolicy = retryPolicy
}
if c.builder.AclProvider == nil {
c.builder.AclProvider = aclProvider
}
fn := reflect.TypeOf(callback)
assert.Equal(t, reflect.Func, fn.Kind())
args := make([]reflect.Value, fn.NumIn())
for i := 0; i < fn.NumIn(); i++ {
switch argType := fn.In(i); argType {
case reflect.TypeOf(c.builder):
args[i] = reflect.ValueOf(c.builder)
case reflect.TypeOf((*CuratorFramework)(nil)).Elem():
client = c.builder.Build()
args[i] = reflect.ValueOf(client)
case reflect.TypeOf((*ZookeeperConnection)(nil)).Elem(), reflect.TypeOf(zookeeperConnection):
args[i] = reflect.ValueOf(zookeeperConnection)
case reflect.TypeOf((*ZookeeperDialer)(nil)).Elem(), reflect.TypeOf(zookeeperDialer):
args[i] = reflect.ValueOf(zookeeperDialer)
case reflect.TypeOf((*EnsembleProvider)(nil)).Elem(), reflect.TypeOf(ensembleProvider):
args[i] = reflect.ValueOf(ensembleProvider)
case reflect.TypeOf((*ZookeeperDialer)(nil)).Elem(), reflect.TypeOf(compressionProvider):
args[i] = reflect.ValueOf(compressionProvider)
case reflect.TypeOf((*RetryPolicy)(nil)).Elem(), reflect.TypeOf(retryPolicy):
args[i] = reflect.ValueOf(retryPolicy)
case reflect.TypeOf((*ACLProvider)(nil)).Elem(), reflect.TypeOf(aclProvider):
args[i] = reflect.ValueOf(aclProvider)
case reflect.TypeOf(events):
events = make(chan zk.Event)
args[i] = reflect.ValueOf(events)
case reflect.TypeOf(wg):
wg = new(sync.WaitGroup)
args[i] = reflect.ValueOf(wg)
case reflect.TypeOf(data):
args[i] = reflect.ValueOf(data)
case reflect.TypeOf(version):
args[i] = reflect.ValueOf(version)
case reflect.TypeOf(stat):
args[i] = reflect.ValueOf(stat)
case reflect.TypeOf(acls):
args[i] = reflect.ValueOf(acls)
default:
t.Errorf("unknown arg type: %s", fn.In(i))
}
}
if client != nil {
if c.builder.EnsembleProvider == ensembleProvider {
ensembleProvider.On("ConnectionString").Return("connStr").Once()
ensembleProvider.On("Start").Return(nil).Once()
ensembleProvider.On("Close").Return(nil).Once()
}
if c.builder.ZookeeperDialer == zookeeperDialer {
zookeeperDialer.On("Dial", mock.AnythingOfType("string"), c.builder.SessionTimeout, c.builder.CanBeReadOnly).Return(zookeeperConnection, events, nil).Once()
}
assert.NoError(t, client.Start())
}
if wg != nil {
wg.Add(1)
}
reflect.ValueOf(callback).Call(args)
if wg != nil {
wg.Wait()
}
if client != nil {
if c.builder.ZookeeperDialer == zookeeperDialer {
zookeeperConnection.On("Close").Return().Once()
}
assert.NoError(t, client.Close())
}
if events != nil {
close(events)
}
zookeeperConnection.AssertExpectations(t)
zookeeperDialer.AssertExpectations(t)
ensembleProvider.AssertExpectations(t)
compressionProvider.AssertExpectations(t)
retryPolicy.AssertExpectations(t)
aclProvider.AssertExpectations(t)
}
package curator
import (
"github.com/samuel/go-zookeeper/zk"
)
var (
OPEN_ACL_UNSAFE = zk.WorldACL(zk.PermAll)
CREATOR_ALL_ACL = zk.AuthACL(zk.PermAll)
READ_ACL_UNSAFE = zk.WorldACL(zk.PermRead)
)
type ACLProvider interface {
// Return the ACL list to use by default
GetDefaultAcl() []zk.ACL
// Return the ACL list to use for the given path
GetAclForPath(path string) []zk.ACL
}
type defaultACLProvider struct {
defaultAcls []zk.ACL
}
func (p *defaultACLProvider) GetDefaultAcl() []zk.ACL {
return p.defaultAcls
}
func (p *defaultACLProvider) GetAclForPath(path string) []zk.ACL {
return p.defaultAcls
}