public static object[][] PassingConstraints() => new object[][]
{
new object[] { AtLeast.Once(), 1 },
new object[] { AtLeast.Once(), 2 },
new object[] { AtLeast.Twice(), 2 },
new object[] { AtLeast.Twice(), 3 },
new object[] { AtLeast.Thrice(), 3 },
new object[] { AtLeast.Thrice(), 4 },
new object[] { AtLeast.Times(4), 4 },
new object[] { AtLeast.Times(4), 5 },
new object[] { AtMost.Once(), 0 },
new object[] { AtMost.Once(), 1 },
new object[] { AtMost.Twice(), 1 },
new object[] { AtMost.Twice(), 2 },
new object[] { AtMost.Thrice(), 2 },
new object[] { AtMost.Thrice(), 3 },
new object[] { AtMost.Times(4), 3 },
new object[] { AtMost.Times(4), 4 },
new object[] { Exactly.Once(), 1 },
new object[] { Exactly.Twice(), 2 },
new object[] { Exactly.Thrice(), 3 },
new object[] { Exactly.Times(4), 4 },
new object[] { LessThan.Twice(), 1 },
new object[] { LessThan.Thrice(), 2 },
new object[] { LessThan.Times(4), 3 },
new object[] { MoreThan.Once(), 2 },
new object[] { MoreThan.Twice(), 3 },
new object[] { MoreThan.Thrice(), 4 },
new object[] { MoreThan.Times(4), 5 },
};
public void When_a_string_is_matched_and_the_count_of_matches_fits_into_the_expected_it_passes()
{
// Arrange
string subject = "hello world";
// Act
Action act = () => subject.Should().MatchRegex(new Regex("hello.*"), AtLeast.Once());
// Assert
act.Should().NotThrow();
}
public void When_string_containment_at_least_once_is_asserted_and_actual_value_is_null_then_it_should_throw()
{
// Arrange
string actual = null;
string expectedSubstring = "XYZ";
// Act
Action act = () => actual.Should().Contain(expectedSubstring, AtLeast.Once());
// Assert
act.Should().Throw <XunitException>()
.WithMessage("Expected * <null> to contain \"XYZ\" at least 1 time, but found it 0 times.");
}
public void When_string_containment_at_least_once_is_asserted_and_actual_value_does_not_contain_the_expected_string_it_should_throw_earlier()
{
// Arrange
string actual = "ABCDEF";
string expectedSubstring = "XYS";
// Act
Action act = () => actual.Should().Contain(expectedSubstring, AtLeast.Once());
// Assert
act.Should().Throw <XunitException>()
.WithMessage("Expected * \"ABCDEF\" to contain \"XYS\" at least 1 time, but found it 0 times.");
}
public void When_the_subject_is_empty_and_expected_count_is_more_than_zero_it_fails()
{
// Arrange
string subject = string.Empty;
// Act
Action act = () =>
{
using var _ = new AssertionScope();
subject.Should().MatchRegex(".+", AtLeast.Once());
};
// Assert
act.Should().Throw <XunitException>()
.WithMessage($"Expected subject*to match regex* at least 1 time, but found it 0 times*");
}
public void OrderByExcept([DataSources(TestProvName.AllSybase, TestProvName.AllSqlServer)] string context)
{
using (var db = GetDataContext(context))
{
var persons = db.Person
.OrderBy(c => c.LastName);
var concat = persons
.Except(persons);
var sql = concat.ToString();
sql.Should().Contain("ORDER", AtLeast.Once());
Assert.DoesNotThrow(() =>
{
concat.ToList();
});
}
}