NotBe

ShouldNotBe is the inverse of ShouldBe.
Objects
ShouldNotBe works on all types and compares using .Equals.
var theSimpsonsCat = new Cat { Name = "Santas little helper" };
theSimpsonsCat.Name.ShouldNotBe("Santas little helper");
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Exception
theSimpsonsCat.Name
    should not be
"Santas little helper"
    but was
Numeric
ShouldNotBe also allows you to compare numeric values, regardless of their value type.
Integer
const int one = 1;
one.ShouldNotBe(1);
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Exception
one
    should not be
1
    but was
Long
const long aLong = 1L;
aLong.ShouldNotBe(1);
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Exception
aLong
    should not be
1L
    but was
DateTime(Offset)
ShouldNotBe DateTime overloads are similar to the numeric overloads and also support tolerances.
var date = new DateTime(2000, 6, 1);
date.ShouldNotBe(new DateTime(2000, 6, 1, 1, 0, 1), TimeSpan.FromHours(1.5));
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Exception
date
    should not be within
01:30:00
    of
2000-06-01T01:00:01.0000000
    but was
2000-06-01T00:00:00.0000000
TimeSpan
TimeSpan also has tolerance overloads
var timeSpan = TimeSpan.FromHours(1);
timeSpan.ShouldNotBe(timeSpan.Add(TimeSpan.FromHours(1.1d)), TimeSpan.FromHours(1.5d));
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Exception
timeSpan
    should not be within
01:30:00
    of
02:06:00
    but was
01:00:00
ShouldBe
Null
Last updated 5 months ago