test_data/rules/avoid_null_checks_in_equality_operators.dart

// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// test w/ `dart test -N avoid_null_checks_in_equality_operators`

class BadPerson1 {
  final String name = 'I am a bad person';

  get age => 42;

  @override
  operator ==(other) =>
          other != null && // LINT
          other is BadPerson1 &&
          name == other.name;
}

class BadPerson2 {
  final String name = 'I am a bad person';

  @override
  operator ==(other) =>
          !(other == null) && // LINT
          other is BadPerson2 &&
          name == other.name;
}

class BadPerson3 {
  final String name = 'I am a bad person';

  @override
  operator ==(other) =>
          other is BadPerson3
              &&
          name == other?.name; // LINT
}

class BadPerson4 {
  final String name = 'I am a bad person';

  String getName() => name;

  @override
  operator ==(other) =>
      other is BadPerson4
          &&
          name == other?.getName(); // LINT
}

class BadPerson5 {
  String name;

  BadPerson5(this.name);

  @override
  operator ==(other) {
    if (other is BadPerson5){
      final toCompare = other ?? new BadPerson5(""); // LINT
      return toCompare.name == name;
    }
    return false;
  }

}

class GoodPerson {
  final String name = 'I am a good person';

  @override
  operator ==(other) => other is GoodPerson && name == other.name; // OK
}