29 lines
1.1 KiB
Dart
29 lines
1.1 KiB
Dart
part of optional_test;
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void runEqualityTests() {
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group('==', () {
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test('two empty dynamic Optionals are equal', () {
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expect(const Optional<dynamic>.empty(),
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equals(const Optional<dynamic>.empty()));
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});
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test('two Optionals with same value are equal', () {
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expect(Optional.of(1), equals(Optional.of(1)));
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});
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test('two Optionals with different values are not equal', () {
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expect(Optional.of(1), isNot(Optional.of(2)));
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});
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test('two Optionals with equal values of different types are equal', () {
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expect(Optional.of(1), equals(Optional.of(1.0)));
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});
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test('an empty Optional is not equal to an Optional with value', () {
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expect(Optional.of(1), isNot(const Optional<int>.empty()));
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});
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test('two empty Optionals of different types are equal', () {
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expect(
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const Optional<int>.empty(), equals(const Optional<String>.empty()));
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});
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test('two empty Optionals of same type are equal', () {
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expect(const Optional<int>.empty(), equals(const Optional<int>.empty()));
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});
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});
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}
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