Shouldly
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ShouldBe
Objects
ShouldBeExamples works on all types and compares using .Equals.1
var theSimpsonsCat = new Cat { Name = "Santas little helper" };
2
theSimpsonsCat.Name.ShouldBe("Snowball 2");
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Exception
1
theSimpsonsCat.Name
2
should be
3
"Snowball 2"
4
but was
5
"Santas little helper"
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difference
7
Difference | | | | | | | | | | | | | | | | | | |
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| \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/
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Index | 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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Expected Value | S n o w b a l l \s 2
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Actual Value | S a n t a s \s l i t t l e \s h e l p e r
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Expected Code | 83 110 111 119 98 97 108 108 32 50
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Actual Code | 83 97 110 116 97 115 32 108 105 116 116 108 101 32 104 101 108 112 101 114
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Numeric
ShouldBe numeric overloads accept tolerances and has overloads for float, double and decimal types.1
const decimal pi = (decimal)Math.PI;
2
pi.ShouldBe(3.24m, 0.01m);
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Exception
1
pi
2
should be within
3
0.01m
4
of
5
3.24m
6
but was
7
3.14159265358979m
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DateTime(Offset)
DateTime overloads are similar to the numeric overloads and support tolerances.
1
var date = new DateTime(2000, 6, 1);
2
date.ShouldBe(new DateTime(2000, 6, 1, 1, 0, 1), TimeSpan.FromHours(1));
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Exception
1
date
2
should be within
3
01:00:00
4
of
5
2000-06-01T01:00:01.0000000
6
but was
7
2000-06-01T00:00:00.0000000
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TimeSpan
TimeSpan also has tolerance overloads
1
var timeSpan = TimeSpan.FromHours(1);
2
timeSpan.ShouldBe(timeSpan.Add(TimeSpan.FromHours(1.1d)), TimeSpan.FromHours(1));
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Exception
1
timeSpan
2
should be within
3
01:00:00
4
of
5
02:06:00
6
but was
7
01:00:00
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Enumerables
Enumerable comparison is done on the elements in the enumerable, so you can compare an array to a list and have it pass.
1
var apu = new Person { Name = "Apu" };
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var homer = new Person { Name = "Homer" };
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var skinner = new Person { Name = "Skinner" };
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var barney = new Person { Name = "Barney" };
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var theBeSharps = new List<Person> { homer, skinner, barney };
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theBeSharps.ShouldBe(new[] { apu, homer, skinner, barney });
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Exception
1
theBeSharps
2
should be
3
[Apu, Homer, Skinner, Barney]
4
but was
5
[Homer, Skinner, Barney]
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difference
7
[*Homer*, *Skinner*, *Barney*, *]
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Enumerables of Numerics
If you have enumerables of
float, decimal or double types then you can use the tolerance overloads, similar to the value extensions.1
var firstSet = new[] { 1.23m, 2.34m, 3.45001m };
2
var secondSet = new[] { 1.4301m, 2.34m, 3.45m };
3
firstSet.ShouldBe(secondSet, 0.1m);
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Exception
1
firstSet
2
should be within
3
0.1m
4
of
5
[1.4301m, 2.34m, 3.45m]
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but was
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[1.23m, 2.34m, 3.45001m]
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difference
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[*1.23m*, 2.34m, *3.45001m*]
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Bools
1
const bool myValue = false;
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myValue.ShouldBe(true, "Some additional context");
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Exception
1
myValue
2
should be
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True
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but was
5
False
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​
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Additional Info:
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Some additional context
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Last modified 1yr ago