<?php
declare(strict_types=1);
use \Mockery\Adapter\Phpunit\MockeryTestCase;
use PHPUnit\Extension\FunctionMocker;
use EesyLDAP\Entry;
use EesyLDAP\Ldap;
use EesyLDAP\LdapException;
use EesyLDAP\Link;
use EesyLDAP\Filter;


/**
 * @covers \EesyLDAP\Ldap
 */
final class LdapTest extends MockeryTestCase {

  /**
   * @var FunctionMocker
   */
  protected $func;

  public function setUp(): void {
    $this->func = FunctionMocker::start($this, 'EesyLDAP')
                  ->mockFunction('extension_loaded')
                  ->getMock();
  }

  /**
   * Set config with invalid config data
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    // @phpstan-ignore-next-line
    $ldap->set_config(false);
  }

  /**
   * Set config with invalid parameter
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigInvalidParameter() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('fake' => 'value'));
  }

  /**
   * Set config
   * @covers \EesyLDAP\Ldap::set_config
   * @covers \EesyLDAP\Filter
   */
  public function testSetConfig() {
    $ldap = new Ldap(null, false);
    $config = array(
      'hosts' => array('ldap.example.com'),
      'port' => 666,
      'version' => 2,
      'starttls' => true,
      'bind_dn' => 'cn=admin,o=example',
      'bind_password' => 'secret',
      'basedn' => 'o=example',
      'options' => array('LDAP_OPT_NETWORK_TIMEOUT' => 30),
      'filter' => Filter::parse('(objectClass=person)'),
      'scope' => 'one',
      'raise_on_error' => false,
      'use_schema' => true,
    );
    $ldap->set_config($config);
    foreach($config as $key => $expected_value)
      $this->assertSame($expected_value, $ldap->get_config($key));
  }

  /**
   * Set config using aliases
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigWithAlias() {
    $ldap = new Ldap(null, false);
    $config = array(
      'host' => array('ldap.example.com'),
      'binddn' => 'cn=admin,o=example',
      'bindpw' => 'secret',
    );
    $ldap->set_config($config);
    foreach($config as $key => $expected_value)
      $this->assertSame($expected_value, $ldap->get_config($key));
  }

  /**
   * Set config hosts as string
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigHostsString() {
    $ldap = new Ldap(null, false);
    $hosts = array('host1', 'host2');
    $ldap->set_config(array('hosts' => implode(',', $hosts)));
    $this->assertSame($hosts, $ldap->get_config('hosts'));
  }

  /**
   * Set config hosts as array
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigHostsArray() {
    $ldap = new Ldap(null, false);
    $hosts = array('host1', 'host2');
    $ldap->set_config(array('hosts' => $hosts));
    $this->assertSame($hosts, $ldap->get_config('hosts'));
  }

  /**
   * Set config empty host
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigEmptyHost() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('hosts' => 'host1,'));
  }

  /**
   * Set config invalid hosts
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigInvalidHosts() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('hosts' => null));
  }

  /**
   * Set config port
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigPort() {
    $ldap = new Ldap(null, false);
    $port = 666;
    $ldap->set_config(array('port' => $port));
    $this->assertSame($port, $ldap->get_config('port'));
  }

  /**
   * Set config version
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigVersion() {
    $ldap = new Ldap(null, false);
    $version = 2;
    $ldap->set_config(array('version' => $version));
    $this->assertSame($version, $ldap->get_config('version'));
  }

  /**
   * Set config starttls
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigStartTLS() {
    $ldap = new Ldap(null, false);
    $starttls = true;
    $ldap->set_config(array('starttls' => $starttls));
    $this->assertSame($starttls, $ldap->get_config('starttls'));
  }

  /**
   * Set config options
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigOptions() {
    $ldap = new Ldap(null, false);
    $options = array('LDAP_OPT_NETWORK_TIMEOUT' => 30);
    $ldap->set_config(array('options' => $options));
    $this->assertSame($options, $ldap->get_config('options'));
  }

  /**
   * Set config options with invalid value
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigOptionsInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('options' => null));
  }

  /**
   * Set config required options
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigRequiredOptions() {
    $ldap = new Ldap(null, false);
    $required_options = array('LDAP_OPT_NETWORK_TIMEOUT');
    $ldap->set_config(array('required_options' => $required_options));
    $this->assertSame($required_options, $ldap->get_config('required_options'));
  }

  /**
   * Set config required options as true
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigRequiredOptionsTrue() {
    $ldap = new Ldap(null, false);
    $options = array('LDAP_OPT_NETWORK_TIMEOUT' => 30);
    $ldap->set_config(array('options' => $options));
    $ldap->set_config(array('required_options' => true));
    $this->assertSame(array_keys($options), $ldap->get_config('required_options'));
  }

  /**
   * Set config required options as false
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigRequiredOptionsFalse() {
    $ldap = new Ldap(null, false);
    $options = array('LDAP_OPT_NETWORK_TIMEOUT' => 30);
    $ldap->set_config(array('options' => $options));
    $ldap->set_config(array('required_options' => false));
    $this->assertSame(array(), $ldap->get_config('required_options'));
  }

  /**
   * Set config required options with invalid value
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigRequiredOptionsInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('required_options' => null));
  }

  /**
   * Set config filter as string
   * @covers \EesyLDAP\Ldap::set_config
   * @covers \EesyLDAP\Filter
   */
  public function testSetConfigFilterString() {
    $ldap = new Ldap(null, false);
    $filter = '(uid=test)';
    $ldap->set_config(array('filter' => $filter));
    $this->assertEquals(Filter::parse($filter), $ldap->get_config('filter'));
  }

  /**
   * Set config filter as object
   * @covers \EesyLDAP\Ldap::set_config
   * @covers \EesyLDAP\Filter
   */
  public function testSetConfigFilterObject() {
    $ldap = new Ldap(null, false);
    $filter = Filter::parse('(uid=test)');
    $ldap->set_config(array('filter' => $filter));
    $this->assertSame($filter, $ldap->get_config('filter'));
  }

  /**
   * Set config filter with invalid value
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigFilterInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('filter' => null));
  }

  /**
   * Set config scope
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigScope() {
    $ldap = new Ldap(null, false);
    $scopes = array('one', 'base', 'sub');
    foreach ($scopes as $scope) {
      $ldap->set_config(array('scope' => $scope));
      $this->assertSame($scope, $ldap->get_config('scope'));
    }
  }

  /**
   * Set config scope with invalid value
   * @covers \EesyLDAP\Ldap::set_config
   */
  public function testSetConfigScopeInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_config(array('scope' => 'fake'));
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnect() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'starttls' => true, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('start_tls')
         ->once()
         ->with()
         ->andReturn(true);

    $ldap = new Ldap($config);
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   */
  public function testConnectWhenAlreadyConnected() {
    $ldap = new Ldap(null, false);
    $reflection = new ReflectionClass($ldap);
    $link_property = $reflection->getProperty('_link');
    $link_property->setAccessible(true);
    $link_property->setValue($ldap, true);
    $this -> assertTrue($ldap->connect());
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   */
  public function testConnectNoLdapExtension() {
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['check_ldap_extension'])
                 ->getMock();
    $ldap->expects($this->once())
         ->method('check_ldap_extension')
         ->willReturn(false);
    $this -> assertFalse($ldap->connect());
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnectFailure() {
    $config = array(
      'host' => 'ldap1', 'port' => 389,
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(false);
    $this->expectException(LdapException::class);
    $ldap = new Ldap($config);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnectStartTLSFailure() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'starttls' => true,
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('start_tls')
         ->once()
         ->with()
         ->andReturn(false);
    $link->shouldReceive('close')
         ->once()
         ->with();
    $this->expectException(LdapException::class);
    $ldap = new Ldap($config);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnectSetVersionFailure() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(false);
    $link->shouldReceive('errno')
         ->once()
         ->with()
         ->andReturn(10);
    $link->shouldReceive('err2str')
         ->once()
         ->with(10)
         ->andReturn('oups');
    $link->shouldReceive('close')
         ->once()
         ->with();
    $this->expectException(LdapException::class);
    $ldap = new Ldap($config);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnectBindFailure() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(false);
    $link->shouldReceive('errno')
         ->once()
         ->with()
         ->andReturn(false);
    $link->shouldReceive('close')
         ->with();
    $this->expectException(LdapException::class);
    $ldap = new Ldap($config);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::connect
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testConnectRequiredOptionFailure() {
    $option_name = 'LDAP_OPT_NETWORK_TIMEOUT';
    $option_value = 30;
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret',
      'options' => array($option_name => $option_value),
      'required_options' => array($option_name)
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(constant($option_name), $option_value)
         ->andReturn(false);
    $link->shouldReceive('errno')
         ->once()
         ->with()
         ->andReturn(false);
    $link->shouldReceive('close')
         ->with();
    $this->expectException(LdapException::class);
    $ldap = new Ldap($config);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::set_option
   */
  public function testSetOptionNoLink() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->set_option('LDAP_OPT_NETWORK_TIMEOUT', 30);
  }

  /**
   * @covers \EesyLDAP\Ldap::set_option
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSetOptionInvalid() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->andReturn(true);
    $ldap = new Ldap($config);
    $this->expectException(LdapException::class);
    $ldap->set_option('LDAP_FAKE_OPT', 30);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::__get
   */
  public function testGetConfigAliases() {
    $ldap = new Ldap(null, false);
    $this->assertIsArray($ldap->config_aliases);
  }

  /**
   * @covers \EesyLDAP\Ldap::__get
   */
  public function testGetDefaultConfig() {
    $ldap = new Ldap(null, false);
    $this->assertIsArray($ldap->default_config);
  }

  /**
   * @covers \EesyLDAP\Ldap::__get
   */
  public function testGetSchemaWhenDisable() {
    $ldap = new Ldap(array('use_schema' => false), false);
    $this->assertFalse($ldap->schema);
  }

  /**
   * @covers \EesyLDAP\Ldap::__get
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testGetSchema() {
    $ldap = new Ldap(array('use_schema' => true), false);
    $schema = Mockery::mock('overload:EesyLDAP\Schema');
    $schema->shouldReceive('load')
         ->once()
         ->with($ldap)
         ->andSet('loaded', true)
         ->andReturn($schema);
    $this->assertSame($schema, $ldap->__get('schema'));
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::__get
   */
  public function testGetInvalidProperty() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->__get('invalid');
  }

  /**
   * @covers \EesyLDAP\Ldap::get_config
   */
  public function testGetConfigInvalid() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->get_config('invalid');
  }

  /**
   * @covers \EesyLDAP\Ldap::get_config
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testGetConfigFilterFromString() {
    $ldap = new Ldap(null, false);
    $filter = Mockery::mock('overload:EesyLDAP\Filter');
    $filter->shouldReceive('parse')
         ->once()
         ->with($ldap->default_config['filter'])
         ->andReturn('success');
    $this->assertEquals('success', $ldap->get_config('filter'));
  }

  /**
   * @covers \EesyLDAP\Ldap::get_config
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchWithoutParameter() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret',
      'basedn' => 'o=example', 'filter' => '(objectClass=*)'
    );
    $result_ref = 'success';
    $raw_result = [
      'count' => 1,
      0 => [
        'objectclass' => [
          'count' => 2,
          0 => 'top',
          1 => 'inetOrgPerson',
        ],
        0 => 'objectclass',
        'cn' => [
          'count' => 1,
          0 => 'test',
        ],
        1 => 'cn',
        'count' => 2,
        'dn' => 'cn=test',
      ],
    ];
    $expected_result = array(
      'cn=test' => array(
        'objectclass' => array('top', 'inetOrgPerson'),
        'cn' => array('test'),
      ),
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('search')
         ->once()
         ->with($config['basedn'], $config['filter'], null, 0, 0, 0)
         ->andReturn($result_ref);
    $link->shouldReceive('get_entries')
         ->once()
         ->with($result_ref)
         ->andReturn($raw_result);
    $ldap = new Ldap($config);
    $result = $ldap->search();
    $this->assertIsArray($result);
    $this->assertCount(count($expected_result), $result);
    $this->assertContainsOnlyInstancesOf(Entry::class, $result);
    $dn = key($result);
    $this->assertEquals(key($expected_result), $dn);
    foreach($expected_result[$dn] as $attr => $values)
      $this->assertEquals($values, $result[$dn]->get_raw_values($attr));
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::get_config
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchWithParameters() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $filter = '(cn=test)';
    $base = 'o=example';
    $scope = 'one';
    $attributes = ['cn', 'objectclass'];
    $params = [
      'attrsonly' => 1,
      'sizelimit' => 10,
      'timelimit' => 60,
    ];
    $result_ref = 'success';
    $raw_result = [
      'count' => 1,
      0 => [
        'objectclass' => [
          'count' => 2,
          0 => 'top',
          1 => 'inetOrgPerson',
        ],
        0 => 'objectclass',
        'cn' => [
          'count' => 1,
          0 => 'test',
        ],
        1 => 'cn',
        'count' => 2,
        'dn' => 'cn=test',
      ],
    ];
    $expected_result = array(
      'cn=test' => array(
        'objectclass' => array('top', 'inetOrgPerson'),
        'cn' => array('test'),
      ),
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('list')
         ->once()
         ->with(
           $base, $filter, $attributes, $params['attrsonly'], $params['sizelimit'],
           $params['timelimit'])
         ->andReturn($result_ref);
    $link->shouldReceive('get_entries')
         ->once()
         ->with($result_ref)
         ->andReturn($raw_result);
    $ldap = new Ldap($config);
    $result = $ldap->search($filter, $base, $scope, $attributes, $params);
    $this->assertIsArray($result);
    $this->assertCount(count($expected_result), $result);
    $this->assertContainsOnlyInstancesOf(Entry::class, $result);
    $dn = key($result);
    $this->assertEquals(key($expected_result), $dn);
    foreach($expected_result[$dn] as $attr => $values)
      $this->assertEquals($values, $result[$dn]->get_raw_values($attr));
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::get_config
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchWithEntryAsBaseDN() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $filter = '(cn=test)';
    $dn = 'cn=test';
    $base = new Entry($dn);
    $scope = 'sub';
    $result_ref = 'success';
    $raw_result = [
      'count' => 1,
      0 => [
        'objectclass' => [
          'count' => 2,
          0 => 'top',
          1 => 'inetOrgPerson',
        ],
        0 => 'objectclass',
        'cn' => [
          'count' => 1,
          0 => 'test',
        ],
        1 => 'cn',
        'count' => 2,
        'dn' => 'cn=test',
      ],
    ];
    $expected_result = array(
      'cn=test' => array(
        'objectclass' => array('top', 'inetOrgPerson'),
        'cn' => array('test'),
      ),
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('search')
         ->once()
         ->with($dn, $filter, array(), 0, 0, 0)
         ->andReturn($result_ref);
    $link->shouldReceive('get_entries')
         ->once()
         ->with($result_ref)
         ->andReturn($raw_result);
    $ldap = new Ldap($config);
    $result = $ldap->search($filter, $base, $scope);
    $this->assertIsArray($result);
    $this->assertCount(count($expected_result), $result);
    $this->assertContainsOnlyInstancesOf(Entry::class, $result);
    Mockery::close();
  }

  /**
   * @covers \EesyLDAP\Ldap::search
   */
  public function testSearchNoLink() {
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->search();
  }

  /**
   * @covers \EesyLDAP\Ldap::search
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchInvalidScope() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $ldap = new Ldap($config);
    $this->expectException(LdapException::class);
    $ldap->search('cn=test', null, 'bad_scope');
  }

  /**
   * @covers \EesyLDAP\Ldap::search
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchInvalidAttributes() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $ldap = new Ldap($config);
    $this->expectException(LdapException::class);
    // @phpstan-ignore-next-line
    $ldap->search('cn=test', null, null, true);
  }

  /**
   * @covers \EesyLDAP\Ldap::search
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchBadResult() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('search')
         ->once()
         ->andReturn(false);
    $link->shouldReceive('errno')
         ->once()
         ->with()
         ->andReturn(false);
    $ldap = new Ldap($config);
    $this->expectException(LdapException::class);
    $ldap->search();
  }

  /**
   * @covers \EesyLDAP\Ldap::search
   * @runInSeparateProcess
   * @preserveGlobalState disabled
   */
  public function testSearchBadEntries() {
    $config = array(
      'host' => 'ldap1', 'port' => 389, 'version' => 2,
      'bind_dn' => 'cn=admin', 'bind_password' => 'secret'
    );
    $result = 'success';
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $link = Mockery::mock('overload:EesyLDAP\Link');
    $link->shouldReceive('connect')
         ->once()
         ->with($config['host'], $config['port'])
         ->andReturn(true);
    $link->shouldReceive('set_option')
         ->once()
         ->with(LDAP_OPT_PROTOCOL_VERSION, $config['version'])
         ->andReturn(true);
    $link->shouldReceive('bind')
         ->once()
         ->with($config['bind_dn'], $config['bind_password'])
         ->andReturn(true);
    $link->shouldReceive('search')
         ->once()
         ->andReturn($result);
    $link->shouldReceive('get_entries')
         ->once()
         ->with($result)
         ->andReturn(false);
    $link->shouldReceive('errno')
         ->once()
         ->with()
         ->andReturn(false);
    $ldap = new Ldap($config);
    $this->expectException(LdapException::class);
    $ldap->search();
  }

  /**
   * @covers \EesyLDAP\Ldap::get_entry
   * @covers \EesyLDAP\Entry::__construct
   */
  public function testGetEntry() {
    $dn = 'cn=test';
    $filter = '(cn=test)';
    $attributes = array('cn');
    $params = array('attrsonly' => 1);
    $raise = true;
    $expected_entry = new Entry();
    $expected_result = array('cn=test' => $expected_entry);
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['search'])
                 ->getMock();
    $ldap->expects($this->once())
         ->method('search')
         ->with($filter, $dn, 'base', $attributes, $params, $raise)
         ->willReturn($expected_result);
    $entry = $ldap->get_entry($dn, $filter, $attributes, $params, $raise);
    $this->assertInstanceOf(Entry::class, $entry);
    $this->assertSame($expected_entry, $entry);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_entry
   */
  public function testGetEntryInvalid() {
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['search'])
                 ->getMock();
    $ldap->expects($this->once())
         ->method('search')
         ->willReturn(false);
    $this->assertFalse($ldap->get_entry('o=example'));
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParam() {
    $params = ['test' => 'test'];
    $ldap = new Ldap(null, false);
    $this->assertEquals(
      'test',
      self :: callProtectedMethod($ldap, 'get_param', array($params, 'test'))
    );
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamDefault() {
    $params = [];
    $ldap = new Ldap(null, false);
    $this->assertEquals(
      'default',
      self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', 'default'))
    );
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamBool() {
    $params = ['test' => 1];
    $ldap = new Ldap(null, false);
    $this->assertTrue(
      self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'bool'))
    );
    $this->assertTrue(
      self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'boolean'))
    );
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamInt() {
    $params = ['test' => '10'];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'int'));
    $this->assertIsInt($value);
    $this->assertEquals(10, $value);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'integer'));
    $this->assertIsInt($value);
    $this->assertEquals(10, $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamFloat() {
    $params = ['test' => '10.5'];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'float'));
    $this->assertIsFloat($value);
    $this->assertEquals(10.5, $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamString() {
    $params = ['test' => '10.5'];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'str'));
    $this->assertIsString($value);
    $this->assertEquals('10.5', $value);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'string'));
    $this->assertIsString($value);
    $this->assertEquals('10.5', $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamArray() {
    $params = ['test' => array('10.5')];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'array'));
    $this->assertIsArray($value);
    $this->assertEquals(array('10.5'), $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamCastedArray() {
    $params = ['test' => '10.5'];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'array'));
    $this->assertIsArray($value);
    $this->assertEquals(array('10.5'), $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testGetParamEmptyArray() {
    $params = ['test' => null];
    $ldap = new Ldap(null, false);
    $value = self :: callProtectedMethod($ldap, 'get_param', array($params, 'test', null, 'array'));
    $this->assertIsArray($value);
    $this->assertEquals(array(), $value);
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testLogError() {
    $prefix = 'Error %s occured';
    $prefix_var = 'test';
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['error'])
                 ->getMock();
    $ldap->expects($this->once())
         ->method('error')
         ->with("%s: unkown error", true, "Error test occured")
         ->willReturn(false);
    self :: callProtectedMethod($ldap, 'log_error', array($prefix, true, $prefix_var));
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testLogErrorWithLink() {
    $prefix = 'Error %s occured';
    $prefix_var = 'test';
    $link = $this->getMockBuilder(Link::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['errno', 'err2str'])
                 ->getMock();
    $link->expects($this->once())
         ->method('errno')
         ->willReturn(10);
    $link->expects($this->once())
         ->method('err2str')
         ->with(10)
         ->willReturn('error');
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['error'])
                 ->getMock();
    $reflection = new ReflectionClass($ldap);
    $link_property = $reflection->getProperty('_link');
    $link_property->setAccessible(true);
    $link_property->setValue($ldap, $link);
    $ldap->expects($this->once())
         ->method('error')
         ->with("%s: %s (#%s)", true, "Error test occured", 'error', 10)
         ->willReturn(false);
    self :: callProtectedMethod($ldap, 'log_error', array($prefix, true, $prefix_var));
  }

  /**
   * @covers \EesyLDAP\Ldap::get_param
   */
  public function testLogErrorUnknown() {
    $prefix = 'Error %s occured';
    $prefix_var = 'test';
    $link = $this->getMockBuilder(Link::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['errno', 'err2str'])
                 ->getMock();
    $link->expects($this->once())
         ->method('errno')
         ->willReturn(10);
    $link->expects($this->once())
         ->method('err2str')
         ->with(10)
         ->willReturn(false);
    $ldap = $this->getMockBuilder(Ldap::class)
                 ->disableOriginalConstructor()
                 ->onlyMethods(['error'])
                 ->getMock();
    $reflection = new ReflectionClass($ldap);
    $link_property = $reflection->getProperty('_link');
    $link_property->setAccessible(true);
    $link_property->setValue($ldap, $link);
    $ldap->expects($this->once())
         ->method('error')
         ->with('%s: error #%s', true, 'Error test occured', 10)
         ->willReturn(false);
    self :: callProtectedMethod($ldap, 'log_error', array($prefix, true, $prefix_var));
  }

  /**
   * @covers \EesyLDAP\Ldap::check_ldap_extension
   */
  public function testCheckLdapExtension() {
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(true));
    $ldap = new Ldap(null, false);
    $this->assertTrue($ldap->check_ldap_extension());
  }

  /**
   * @covers \EesyLDAP\Ldap::check_ldap_extension
   */
  public function testCheckLdapExtensionNotInstalled() {
    $this->func->expects($this->once())
               ->method('extension_loaded')
               ->with('ldap')
               ->will($this->returnValue(False));
    $ldap = new Ldap(null, false);
    $this->expectException(LdapException::class);
    $ldap->check_ldap_extension();
  }

  /**
   * Helper to call protected method
   * @param object $obj
   * @param string $name
   * @param array<mixed> $args
   * @return mixed
   */
  public static function callProtectedMethod($obj, $name, $args) {
    $class = new \ReflectionClass($obj);
    $method = $class->getMethod($name);
    $method->setAccessible(true);
    return $method->invokeArgs($obj, $args);
  }

}