pkgs/checks/test/extensions/core_test.dart

// Copyright (c) 2022, 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.

import 'package:checks/checks.dart';
import 'package:test/scaffolding.dart';

import '../test_shared.dart';

void main() {
  group('TypeChecks', () {
    test('isA', () {
      check(1).isA<int>();

      check(1).isRejectedBy((it) => it.isA<String>(), which: ['Is a int']);
    });
  });
  group('HasField', () {
    test('has', () {
      check(1).has((v) => v.isOdd, 'isOdd').isTrue();

      check(null).isRejectedBy(
        (it) => it.has((v) {
          Error.throwWithStackTrace(
            UnimplementedError(),
            StackTrace.fromString('fake trace'),
          );
        }, 'foo').isNotNull(),
        which: [
          'threw while trying to read foo: <UnimplementedError> at:',
          '  fake trace',
        ],
      );
    });

    test('which', () {
      check(true).which((it) => it.isTrue());
    });

    test('not', () {
      check(false).not((it) => it.isTrue());
      check(true).isRejectedBy(
        (it) => it.not((it) => it.isTrue()),
        which: ['is a value that: ', '    is true'],
      );
    });

    group('anyOf', () {
      test('succeeds for happy case', () {
        check(
          -10,
        ).anyOf([(it) => it.isGreaterThan(1), (it) => it.isLessThan(-1)]);
      });
      test('rejects values that do not satisfy any condition', () {
        check(0).isRejectedBy(
          (it) => it.anyOf([
            (it) => it.isGreaterThan(1),
            (it) => it.isLessThan(-1),
          ]),
          which: ['did not match any condition'],
        );
      });
    });
  });

  group('BoolChecks', () {
    test('isTrue', () {
      check(true).isTrue();

      check(false).isRejectedBy((it) => it.isTrue());
    });

    test('isFalse', () {
      check(false).isFalse();

      check(true).isRejectedBy((it) => it.isFalse());
    });
  });

  group('EqualityChecks', () {
    test('equals', () {
      check(1).equals(1);

      check(1).isRejectedBy((it) => it.equals(2), which: ['are not equal']);
    });
    test('identical', () {
      check(1).identicalTo(1);

      check(
        1,
      ).isRejectedBy((it) => it.identicalTo(2), which: ['is not identical']);
    });
  });
  group('NullabilityChecks', () {
    test('isNotNull', () {
      check(1).isNotNull();

      check(null).isRejectedBy((it) => it.isNotNull());
    });
    test('isNull', () {
      check(null).isNull();

      check(1).isRejectedBy((it) => it.isNull());
    });
  });

  group('ComparableChecks on Duration', () {
    group('isGreaterThan', () {
      test('succeeds for greater', () {
        check(
          const Duration(seconds: 10),
        ).isGreaterThan(const Duration(seconds: 1));
      });
      test('fails for equal', () {
        check(const Duration(seconds: 10)).isRejectedBy(
          (it) => it.isGreaterThan(const Duration(seconds: 10)),
          which: ['is not greater than <0:00:10.000000>'],
        );
      });
      test('fails for less', () {
        check(const Duration(seconds: 10)).isRejectedBy(
          (it) => it.isGreaterThan(const Duration(seconds: 50)),
          which: ['is not greater than <0:00:50.000000>'],
        );
      });
    });
    group('isGreaterOrEqual', () {
      test('succeeds for greater', () {
        check(
          const Duration(seconds: 10),
        ).isGreaterOrEqual(const Duration(seconds: 1));
      });
      test('succeeds for equal', () {
        check(
          const Duration(seconds: 10),
        ).isGreaterOrEqual(const Duration(seconds: 10));
      });
      test('fails for less', () {
        check(const Duration(seconds: 10)).isRejectedBy(
          (it) => it.isGreaterOrEqual(const Duration(seconds: 50)),
          which: ['is not greater than or equal to <0:00:50.000000>'],
        );
      });
    });
    group('isLessThan', () {
      test('succeeds for less', () {
        check(
          const Duration(seconds: 1),
        ).isLessThan(const Duration(seconds: 10));
      });
      test('fails for equal', () {
        check(const Duration(seconds: 10)).isRejectedBy(
          (it) => it.isLessThan(const Duration(seconds: 10)),
          which: ['is not less than <0:00:10.000000>'],
        );
      });
      test('fails for greater', () {
        check(const Duration(seconds: 50)).isRejectedBy(
          (it) => it.isLessThan(const Duration(seconds: 10)),
          which: ['is not less than <0:00:10.000000>'],
        );
      });
    });
    group('isLessOrEqual', () {
      test('succeeds for less', () {
        check(
          const Duration(seconds: 10),
        ).isLessOrEqual(const Duration(seconds: 50));
      });
      test('succeeds for equal', () {
        check(
          const Duration(seconds: 10),
        ).isLessOrEqual(const Duration(seconds: 10));
      });
      test('fails for greater', () {
        check(const Duration(seconds: 10)).isRejectedBy(
          (it) => it.isLessOrEqual(const Duration(seconds: 1)),
          which: ['is not less than or equal to <0:00:01.000000>'],
        );
      });
    });
  });
}