public void NotShouldThrowIfPatternIsNull()
{
Action action = () => Pattern.Not <object, object>(null);
action.Should().Throw <ArgumentNullException>();
}
public Property NotValueNullShouldBeOppositeToValueNull(int?x) => (Pattern.ValueNull <int>().Match(x).IsSome == Pattern.Not(Pattern.ValueNull <int>()).Match(x).IsNone).ToProperty();
public void NotTypeShouldFailOnlyWhenTheValueHasType()
{
Pattern.Not(Pattern.Type <object, int>()).Match(1).IsSome.Should().BeFalse();
Pattern.Not(Pattern.Type <object, string>()).Match("string").IsSome.Should().BeFalse();
Pattern.Not(Pattern.Type <object, object>()).Match(null).IsSome.Should().BeTrue();
}
public Property NotPatternShouldBeOppositeToPattern(SimplePattern <string> pattern, string x) => (pattern.Match(x).IsSome == Pattern.Not(pattern).Match(x).IsNone).ToProperty();