LDAPUnit

LDAPUnit is a Java library help create unit tests for that depend on a LDAP directory server.

DirectoryServerRule

DirectoryServerRule is used to launch an embedded LDAP directory server so that the unit tests written using JUnit 4 do not have to be dependent on an external LDAP directory server with unpredictable state.

To use the DirectoryServerRule you need to instantiate the rule as a public member of the test class and annotate it with Rule. The rule will have no effect unless the class or methods have been annotated with DirectoryServerConfiguration.

import com.btmatthews.ldapunit.DirectoryServerConfiguration;
import com.btmatthews.ldapunit.DirectoryServerRule;
import org.junit.Rule;
import org.junit.Test;

@DirectoryServerConfiguration
public class Test {

  @Rule
  public DirectoryServerRule directoryServerRule = new DirectoryServerRule();

  @Test
  public void testSomething() {
    // Unit test code that depends on LDAP directory server
  }
}

DirectoryServerExtension

DirectoryServerExtension is used to launch an embedded LDAP directory server so that the unit tests written using JUnit 5 do not have to be dependent on an external LDAP directory server with unpredictable state.

To use the DirectoryServerExtension you need to annotate the test class with ExtendWith with DirectoryServerExtension as a value. The extension will have no effect unless the class or methods have been annotated with DirectoryServerConfiguration.

import com.btmatthews.ldapunit.DirectoryServerConfiguration;
import com.btmatthews.ldapunit.DirectoryServerRule;
import org.junit.jupiter.api.Test;

@DirectoryServerConfiguration
class Test {

  @Test
  void testSomething(final DirectoryTester tester) {
    // Unit test code that depends on LDAP directory server
  }
}

DirectoryServerConfiguration

The DirectoryServerConfiguration annotation is used to provide the configuration parameters for the embedded LDAP directory server. The following parameters can be configured:

Name	Description	Default
`port`	The TCP port that the LDAP directory server will be configured to listen on.	`10389`
`baseDN`	The DN that will be configured as the root of the LDAP directory.	`dc=btmatthews,dc=com`
`baseDNAttributes`	The attribute name/value pairs to use when creating the base DN.
`baseObjectClasses`	The object classes to use used when creating the base DN.	`domain,top`
`authDN`	The DN that will be configured as the administrator account identifier.	`uid=admin,ou=system`
`password</td>`	The password that will be configured as the authentication credentials for the administrator account.	`secret`
`ldifFiles`	The location of optional LDIF files that can be used to seed the LDAP directory with an initial data set. The files may be located on the file system or the classpath. The classpath is checked first and then falls back to the file system if it was not found on the classpath.
`schemaFiles`	The location of optional custom schema files that can be used to define the schema of the directory server. The files may be located on the file system or the classpath. The classpath is checked first and then falls back to the file system if it was not found on the classpath. `default` is a special value that indicates that the default schema should be loaded.

The following methods can be used to make assertions about or verify the contents of the LDAP directory:

assertDNExists(String dn) - asserts that an entry exists in the LDAP directory with the distinguished name of dn.
verifyDNExists(String dn) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn.
assertDNIsA(String dn, String objectclass) - asserts that an entry exists in the LDAP directory with the distinguished name of dn and that it is of type objectclass.
verifyDNIsA(String dn, String objectclass) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it is of type objectclass.
assertDNHasAttribute(String dn, String attributeName) - asserts that an entry exists in the LDAP directory with the distinguished name of dn and that it has an attribute named attributeName.
verifyDNHasAttribute(String dn, String attributeName) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it has an attribute named attributeName.
assertDNHasAttributeValue(String dn, String attributeName, String… attributeValue) - assert that an entry exists in the LDAP directory with the distinguished nane of dn and that it has an attribute named attributeName with value(s) attributeValues.
<<verifyDNHasAttributeValue(String dn, String attributeName, String… attributeValue) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it has an attribute named attributeName with value(s) attributeValues**.

DirectoryTester

DirectoryTester is used to connect to an LDAP directory server (embedded or external) and make assertions about or verify the contents of the LDAP directory.

import com.btmatthews.ldapunit.DirectoryTester;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class Test {

private DirectoryTester tester;

  @Before
  public void setUp() {
    tester = new DirectoryTester("localhost", 10389, "uid=admin,ou=system", "secret");
  }

  @After
  public void tearDown() {
    tester.disconnect();
  }

  @Test
  public void testSomething() {
    // Do something that affects the LDAP directory
    // Check outcomes with tester.assertXXX() and tester.verifyXXX() methods
  }
}

There are two variants of the [DirectoryTester](http://ldapunit.btmatthews.com/apidocs/com/btmatthews/ldapunit/DirectoryTester.html) constructor

DirectoryTester(String hostname, int port) - connects anonymously to the directory server on the host with name or IP address specified by hostname that is listening on the TCP port specified by port.
DirectoryTester(String hostname, int port, String bindDN, String password) - connects to the directory server on the host with name or IP address specified by hostname that is listening on the TCP port specified by port. Then it binds to the using the authentication identifier and credentials specified by bindDN and password.

The following methods can be used to make assertions about or verify the contents of the LDAP directory:

assertDNExists(String dn) - asserts that an entry exists in the LDAP directory with the distinguished name of dn.
verifyDNExists(String dn) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn.
assertDNIsA(String dn, String objectclass) - asserts that an entry exists in the LDAP directory with the distinguished name of dn and that it is of type objectclass.
verifyDNIsA(String dn, String objectclass) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it is of type objectclass.
assertDNHasAttribute(String dn, String attributeName) - asserts that an entry exists in the LDAP directory with the distinguished name of dn and that it has an attribute named attributeName.
verifyDNHasAttribute(String dn, String attributeName) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it has an attribute named attributeName.
assertDNHasAttributeValue(String dn, String attributeName, String… attributeValue) - assert that an entry exists in the LDAP directory with the distinguished nane of dn and that it has an attribute named attributeName with value(s) attributeValues.
<<verifyDNHasAttributeValue(String dn, String attributeName, String… attributeValue) - tests to see if an entry exists in the LDAP directory with the distinguished name of dn and check that it has an attribute named attributeName with value(s) attributeValues**.

The connection should be closed by calling disconnect().

Maven Central Coordinates

LDAPUnit has been published in [Maven Central](http://search.maven.org) at the following coordinates:

<dependency>
  <groupId>com.btmatthews.ldapunit</groupId>
  <artifactId>ldapunit</artifactId>
  <version>2.1.0</version>
</dependency>

Contributions

Contributions are welcome as long as the code is clearly commented and accompanied by unit tests.

Credits

The approach for implementing the LDAPUnit's DirectoryServerRule is based heavily on the OpenDJRule implemented in the https://github.com/ehsavoie/embedded-ldap project.

Internally LDAPUnit is using the [UnboundID LDAP SDK](https://www.unboundid.com/products/ldap-sdk) to run the embedded LDAP directory server and as the API for communicating with an LDAP directory server.

License & Source Code

The LDAPUnit is made available under the [Apache License](http://www.apache.org/licenses/LICENSE-2.0.html) and the source code is hosted on [GitHub](http://github.com) at https://github.com/bmatthews68/ldapunit.

bmatthews68 / ldapunit