LdapAuthTest.java

package com.example.ldap;

import org.junit.Test;
import org.junit.Before;
import static org.junit.Assert.*;

/**
 * Unit tests for LdapAuth class
 * Note: These tests verify the methods execute without crashing.
 * Actual LDAP connections will fail in test environment, which is expected.
 */
public class LdapAuthTest {
    
    private LdapAuth ldapAuth;
    
    @Before
    public void setUp() {
        ldapAuth = new LdapAuth();
    }
    
    @Test
    public void testLdapAuthCreation() {
        assertNotNull("LdapAuth should be created", ldapAuth);
    }
    
    @Test
    public void testAuthenticateUserDoesNotCrash() {
        // Should handle LDAP connection failure gracefully
        boolean result = ldapAuth.authenticateUser("testuser", "testpass");
        assertFalse("Authentication should fail without LDAP server", result);
    }
    
    @Test
    public void testAuthenticateUserWithEmptyUsername() {
        boolean result = ldapAuth.authenticateUser("", "password");
        assertFalse("Authentication with empty username should fail", result);
    }
    
    @Test
    public void testAuthenticateUserWithEmptyPassword() {
        boolean result = ldapAuth.authenticateUser("username", "");
        assertFalse("Authentication with empty password should fail", result);
    }
    
    @Test
    public void testAuthenticateUserWithBothEmpty() {
        boolean result = ldapAuth.authenticateUser("", "");
        assertFalse("Authentication with both empty should fail", result);
    }
    
    @Test
    public void testAuthenticateUserWithSpecialCharacters() {
        // Testing with LDAP injection attempt
        boolean result = ldapAuth.authenticateUser("admin*", "password");
        assertFalse("Authentication should fail without LDAP server", result);
    }
    
    @Test
    public void testAuthenticateUserWithParentheses() {
        boolean result = ldapAuth.authenticateUser("user)(uid=*", "pass");
        assertFalse("Authentication with parentheses should fail without LDAP server", result);
    }
    
    @Test
    public void testAuthenticateUserWithAsterisk() {
        boolean result = ldapAuth.authenticateUser("*", "*");
        assertFalse("Authentication with wildcards should fail without LDAP server", result);
    }
    
    @Test
    public void testAuthenticateUserNormalCredentials() {
        boolean result = ldapAuth.authenticateUser("john.doe", "secretpassword");
        assertFalse("Authentication should fail without LDAP server", result);
    }
    
    @Test
    public void testGetUserInfoDoesNotCrash() {
        try {
            String result = ldapAuth.getUserInfo("testuser");
            // Should return null or handle error gracefully
            assertNull("getUserInfo should return null without LDAP server", result);
        } catch (Exception e) {
            fail("getUserInfo should not throw exception: " + e.getMessage());
        }
    }
    
    @Test
    public void testGetUserInfoWithEmptyUserId() {
        String result = ldapAuth.getUserInfo("");
        assertNull("getUserInfo with empty ID should return null", result);
    }
    
    @Test
    public void testGetUserInfoWithSpecialCharacters() {
        String result = ldapAuth.getUserInfo("admin*");
        assertNull("getUserInfo with special characters should return null", result);
    }
    
    @Test
    public void testGetUserInfoWithWildcard() {
        String result = ldapAuth.getUserInfo("*");
        assertNull("getUserInfo with wildcard should return null", result);
    }
    
    @Test
    public void testGetUserInfoWithLdapInjection() {
        String result = ldapAuth.getUserInfo("admin)(uid=*)");
        assertNull("getUserInfo with injection attempt should return null", result);
    }
    
    @Test
    public void testGetUserInfoNormalUserId() {
        String result = ldapAuth.getUserInfo("john.doe");
        assertNull("getUserInfo should return null without LDAP server", result);
    }
    
    @Test
    public void testMultipleAuthenticationAttempts() {
        // Test that multiple operations can be called in sequence
        try {
            ldapAuth.authenticateUser("user1", "pass1");
            ldapAuth.authenticateUser("user2", "pass2");
            ldapAuth.getUserInfo("user1");
            ldapAuth.getUserInfo("user2");
            assertTrue("Multiple operations should complete", true);
        } catch (Exception e) {
            fail("Multiple operations should not throw exception");
        }
    }
    
    @Test
    public void testAuthenticateUserWithUnicodeCharacters() {
        boolean result = ldapAuth.authenticateUser("用户", "密码");
        assertFalse("Authentication with unicode should fail without LDAP server", result);
    }
    
    @Test
    public void testGetUserInfoWithUnicodeCharacters() {
        String result = ldapAuth.getUserInfo("用户");
        assertNull("getUserInfo with unicode should return null without LDAP server", result);
    }
}