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Add support for Satisfy on reference type assertions using element in…
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80 changes: 80 additions & 0 deletions
80
Tests/FluentAssertions.Specs/Primitives/ReferenceTypeAssertionsSpecs.Match.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| using System; | ||
| using Xunit; | ||
| using Xunit.Sdk; | ||
|
|
||
| namespace FluentAssertions.Specs.Primitives; | ||
|
|
||
| public partial class ReferenceTypeAssertionsSpecs | ||
| { | ||
| [Fact] | ||
| public void When_object_matches_predicate_it_should_not_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
||
| // Act / Assert | ||
| someObject.Should().Match(o => o != null); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_typed_object_matches_predicate_it_should_not_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new SomeDto | ||
| { | ||
| Name = "Dennis Doomen", | ||
| Age = 36, | ||
| Birthdate = new DateTime(1973, 9, 20) | ||
| }; | ||
|
|
||
| // Act / Assert | ||
| someObject.Should().Match<SomeDto>(o => o.Age > 0); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_object_does_not_match_the_predicate_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Match(o => o == null, "it is not initialized yet"); | ||
|
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| // Assert | ||
| act.Should().Throw<XunitException>() | ||
| .WithMessage("Expected someObject to match (o == null) because it is not initialized yet*"); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_a_typed_object_does_not_match_the_predicate_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new SomeDto | ||
| { | ||
| Name = "Dennis Doomen", | ||
| Age = 36, | ||
| Birthdate = new DateTime(1973, 9, 20) | ||
| }; | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Match((SomeDto d) => d.Name.Length == 0, "it is not initialized yet"); | ||
|
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| // Assert | ||
| act.Should().Throw<XunitException>().WithMessage( | ||
| "Expected someObject to match (d.Name.Length == 0) because it is not initialized yet*"); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_object_is_matched_against_a_null_predicate_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Match(null); | ||
|
|
||
| // Assert | ||
| act.Should().Throw<ArgumentNullException>().WithMessage( | ||
| "Cannot match an object against a <null> predicate.*"); | ||
| } | ||
| } |
213 changes: 213 additions & 0 deletions
213
Tests/FluentAssertions.Specs/Primitives/ReferenceTypeAssertionsSpecs.Satisfy.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| using System; | ||
| using Xunit; | ||
| using Xunit.Sdk; | ||
|
|
||
| namespace FluentAssertions.Specs.Primitives; | ||
|
|
||
| public partial class ReferenceTypeAssertionsSpecs | ||
| { | ||
| [Fact] | ||
| public void When_object_satisfies_inspector_it_should_not_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Satisfy<object>(x => x.Should().NotBeNull()); | ||
|
|
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| // Assert | ||
| act.Should().NotThrow(); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_typed_object_satisfies_inspector_it_should_not_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new PersonDto | ||
| { | ||
| Name = "Name Nameson", | ||
| Birthdate = new DateTime(2000, 1, 1), | ||
| }; | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Satisfy<PersonDto>(o => o.Age.Should().BeGreaterThan(0)); | ||
|
|
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| // Assert | ||
| act.Should().NotThrow(); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_object_does_not_satisfy_the_inspector_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
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| // Act | ||
| Action act = () => someObject.Should().Satisfy<object>(o => o.Should().BeNull("it is not initialized yet")); | ||
|
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| // Assert | ||
| act.Should().Throw<XunitException>().WithMessage( | ||
| $""" | ||
| Expected {nameof(someObject)} to match inspector, but the inspector was not satisfied: | ||
| *Expected o to be <null> because it is not initialized yet, but found System.Object* | ||
| """); | ||
| } | ||
|
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||
| [Fact] | ||
| public void When_a_typed_object_does_not_satisfy_the_inspector_it_should_throw() | ||
| { | ||
| // Arrange | ||
| const string personName = "Name Nameson"; | ||
| var somePerson = new PersonDto | ||
| { | ||
| Name = personName, | ||
| Birthdate = new DateTime(1973, 9, 20), | ||
| }; | ||
|
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| // Act | ||
| Action act = () => somePerson.Should().Satisfy<PersonDto>(d => d.Name.Should().HaveLength(0, "it is not initialized yet")); | ||
|
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| // Assert | ||
| act.Should().Throw<XunitException>().WithMessage( | ||
| $""" | ||
| Expected {nameof(somePerson)} to match inspector, but the inspector was not satisfied: | ||
| *Expected d.Name with length 0 because it is not initialized yet, but found string "{personName}" with length {personName.Length}. | ||
| """); | ||
| } | ||
|
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||
| [Fact] | ||
| public void When_a_complex_typed_object_does_not_satisfy_inspector_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someComplexDto = new PersonAndAddressDto | ||
| { | ||
| Person = new PersonDto | ||
| { | ||
| Name = "Buford Howard Tannen", | ||
| Birthdate = new DateTime(1937, 3, 26), | ||
| }, | ||
| Address = new AddressDto | ||
| { | ||
| Street = "Mason Street", | ||
| Number = "1809", | ||
| City = "Hill Valley", | ||
| Country = "United States", | ||
| PostalCode = "CA 91905", | ||
| }, | ||
| }; | ||
|
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| // Act | ||
| Action act = () => someComplexDto.Should().Satisfy<PersonAndAddressDto>(dto => | ||
| { | ||
| dto.Person.Should().Satisfy<PersonDto>(person => | ||
| { | ||
| person.Name.Should().Be("Biff Tannen"); | ||
| person.Age.Should().Be(48); | ||
| person.Birthdate.Should().Be(new DateTime(1937, 3, 26)); | ||
| }); | ||
| dto.Address.Should().Satisfy<AddressDto>(address => | ||
| { | ||
| address.Street.Should().Be("Mason Street"); | ||
| address.Number.Should().Be("1809"); | ||
| address.City.Should().Be("Hill Valley, San Diego County, California"); | ||
| address.Country.Should().Be("United States"); | ||
| address.PostalCode.Should().Be("CA 91905"); | ||
| }); | ||
| }); | ||
|
|
||
| // Assert | ||
| act.Should().Throw<XunitException>().WithMessage( | ||
| $""" | ||
| Expected {nameof(someComplexDto)} to match inspector, but the inspector was not satisfied: | ||
| *Expected dto.Person to match inspector* | ||
| *Expected person.Name* | ||
| *Expected dto.Address to match inspector* | ||
| *Expected address.City* | ||
| """); | ||
| } | ||
|
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| [Fact] | ||
| public void When_a_typed_object_is_satisfied_against_an_incorrect_type_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var personDto = new PersonDto(); | ||
|
|
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| // Act | ||
| Action act = () => personDto.Should().Satisfy<AddressDto>(dto => dto.Should().NotBeNull()); | ||
|
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| // Assert | ||
| act.Should().Throw<XunitException>() | ||
| .WithMessage($"Expected {nameof(personDto)} to be assignable to {typeof(AddressDto)}, but {typeof(PersonDto)} is not."); | ||
| } | ||
|
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||
| [Fact] | ||
| public void When_a_typed_object_does_not_match_multiple_inspectors_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var somePerson = new PersonDto | ||
| { | ||
| Name = "Name Nameson", | ||
| Birthdate = new DateTime(2000, 1, 1), | ||
| }; | ||
|
|
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| // Act | ||
| Action act = () => somePerson.Should().Satisfy<PersonDto>(d => | ||
| { | ||
| d.Name.Should().Be("Someone Else"); | ||
| d.Age.Should().BeLessThan(20); | ||
| d.Birthdate.Should().BeAfter(new DateTime(2001, 1, 1)); | ||
| }); | ||
|
|
||
| // Assert | ||
| act.Should().Throw<XunitException>().WithMessage( | ||
| $""" | ||
| Expected {nameof(somePerson)} to match inspector, but the inspector was not satisfied: | ||
| *Expected d.Name* | ||
| *Expected d.Age* | ||
| *Expected d.Birthdate* | ||
| """); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void When_object_is_satisfied_against_a_null_inspector_it_should_throw() | ||
| { | ||
| // Arrange | ||
| var someObject = new object(); | ||
|
|
||
| // Act | ||
| Action act = () => someObject.Should().Satisfy<object>(null); | ||
|
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| // Assert | ||
| act.Should().Throw<ArgumentNullException>() | ||
| .WithMessage("Cannot verify an object against a <null> inspector.*"); | ||
| } | ||
| } | ||
|
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| file class PersonDto | ||
| { | ||
| public string Name { get; init; } | ||
|
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| public DateTime Birthdate { get; init; } | ||
|
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| public int Age => DateTime.UtcNow.Subtract(Birthdate).Days / 365; | ||
| } | ||
|
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| file class PersonAndAddressDto | ||
| { | ||
| public PersonDto Person { get; init; } | ||
|
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| public AddressDto Address { get; init; } | ||
| } | ||
|
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| file class AddressDto | ||
| { | ||
| public string Street { get; init; } | ||
|
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| public string Number { get; init; } | ||
|
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| public string City { get; init; } | ||
|
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| public string PostalCode { get; init; } | ||
|
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| public string Country { get; init; } | ||
| } |
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