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error_test.go
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error_test.go
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package ldap
import (
"errors"
"net"
"strings"
"testing"
"time"
ber "github.com/go-asn1-ber/asn1-ber"
)
// TestNilPacket tests that nil packets don't cause a panic.
func TestNilPacket(t *testing.T) {
// Test for nil packet
err := GetLDAPError(nil)
if !IsErrorWithCode(err, ErrorUnexpectedResponse) {
t.Errorf("Should have an 'ErrorUnexpectedResponse' error in nil packets, got: %v", err)
}
// Test for nil result
kids := []*ber.Packet{
{}, // Unused
nil, // Can't be nil
}
pack := &ber.Packet{Children: kids}
err = GetLDAPError(pack)
if !IsErrorWithCode(err, ErrorUnexpectedResponse) {
t.Errorf("Should have an 'ErrorUnexpectedResponse' error in nil packets, got: %v", err)
}
}
// 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)
}
}
// TestGetLDAPError tests parsing of result with a error response.
func TestGetLDAPError(t *testing.T) {
diagnosticMessage := "Detailed error message"
bindResponse := ber.Encode(ber.ClassApplication, ber.TypeConstructed, ApplicationBindResponse, nil, "Bind Response")
bindResponse.AppendChild(ber.Encode(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, int64(LDAPResultInvalidCredentials), "resultCode"))
bindResponse.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, "dc=example,dc=org", "matchedDN"))
bindResponse.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, diagnosticMessage, "diagnosticMessage"))
packet := ber.NewSequence("LDAPMessage")
packet.AppendChild(ber.Encode(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, int64(0), "messageID"))
packet.AppendChild(bindResponse)
err := GetLDAPError(packet)
if err == nil {
t.Errorf("Did not get error response")
}
ldapError := err.(*Error)
if ldapError.ResultCode != LDAPResultInvalidCredentials {
t.Errorf("Got incorrect error code in LDAP error; got %v, expected %v", ldapError.ResultCode, LDAPResultInvalidCredentials)
}
if ldapError.Err.Error() != diagnosticMessage {
t.Errorf("Got incorrect error message in LDAP error; got %v, expected %v", ldapError.Err.Error(), diagnosticMessage)
}
}
// TestGetLDAPErrorSuccess tests parsing of a result with no error (resultCode == 0).
func TestGetLDAPErrorSuccess(t *testing.T) {
bindResponse := ber.Encode(ber.ClassApplication, ber.TypeConstructed, ApplicationBindResponse, nil, "Bind Response")
bindResponse.AppendChild(ber.Encode(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, int64(0), "resultCode"))
bindResponse.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, "", "matchedDN"))
bindResponse.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, "", "diagnosticMessage"))
packet := ber.NewSequence("LDAPMessage")
packet.AppendChild(ber.Encode(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, int64(0), "messageID"))
packet.AppendChild(bindResponse)
err := GetLDAPError(packet)
if err != nil {
t.Errorf("Successful responses should not produce an error, but got: %v", 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
}