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package ldap
import (
"errors"
"net"
"strings"
"testing"
"time"
"gopkg.in/asn1-ber.v1"
)
// TestNilPacket tests that nil packets don't cause a panic.
func TestNilPacket(t *testing.T) {
// Test for nil packet
code, _ := getLDAPResultCode(nil)
if code != ErrorUnexpectedResponse {
t.Errorf("Should have an 'ErrorUnexpectedResponse' error in nil packets, got: %v", code)
}
// Test for nil result
kids := []*ber.Packet{
{}, // Unused
nil, // Can't be nil
}
pack := &ber.Packet{Children: kids}
code, _ = getLDAPResultCode(pack)
if code != ErrorUnexpectedResponse {
t.Errorf("Should have an 'ErrorUnexpectedResponse' error in nil packets, got: %v", code)
}
}
// TestConnReadErr tests that an unexpected error reading from underlying
// connection bubbles up to the goroutine which makes a request.
func TestConnReadErr(t *testing.T) {
conn := &signalErrConn{
signals: make(chan error),
}
ldapConn := NewConn(conn, false)
ldapConn.Start()
// Make a dummy search request.
searchReq := NewSearchRequest("dc=example,dc=com", ScopeWholeSubtree, DerefAlways, 0, 0, false, "(objectClass=*)", nil, nil)
expectedError := errors.New("this is the error you are looking for")
// Send the signal after a short amount of time.
time.AfterFunc(10*time.Millisecond, func() { conn.signals <- expectedError })
// This should block until the underlying conn gets the error signal
// which should bubble up through the reader() goroutine, close the
// connection, and
_, err := ldapConn.Search(searchReq)
if err == nil || !strings.Contains(err.Error(), expectedError.Error()) {
t.Errorf("not the expected error: %s", err)
}
}
// signalErrConn is a helpful type used with TestConnReadErr. It implements the
// net.Conn interface to be used as a connection for the test. Most methods are
// no-ops but the Read() method blocks until it receives a signal which it
// returns as an error.
type signalErrConn struct {
signals chan error
}
// Read blocks until an error is sent on the internal signals channel. That
// error is returned.
func (c *signalErrConn) Read(b []byte) (n int, err error) {
return 0, <-c.signals
}
func (c *signalErrConn) Write(b []byte) (n int, err error) {
return len(b), nil
}
func (c *signalErrConn) Close() error {
close(c.signals)
return nil
}
func (c *signalErrConn) LocalAddr() net.Addr {
return (*net.TCPAddr)(nil)
}
func (c *signalErrConn) RemoteAddr() net.Addr {
return (*net.TCPAddr)(nil)
}
func (c *signalErrConn) SetDeadline(t time.Time) error {
return nil
}
func (c *signalErrConn) SetReadDeadline(t time.Time) error {
return nil
}
func (c *signalErrConn) SetWriteDeadline(t time.Time) error {
return nil
}
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