ShouldBe

var target = "Homer";
target.ShouldBe("Bart");

snippet source | anchor

Exception

target
should be
"Bart"
but was
"Homer"
difference
Difference | | | | | |
| \|/ \|/ \|/ \|/ \|/
Index | 0 1 2 3 4
Expected Value | B a r t
Actual Value | H o m e r
Expected Code | 66 97 114 116
Actual Code | 72 111 109 101 114

ShouldNotBe

var target = "Bart";
target.ShouldNotBe("Bart");

snippet source | anchor

Exception

target
should not be
"Bart"
but was