-
Notifications
You must be signed in to change notification settings - Fork 157
ExactCountConstraint
Mikkel Nylander Bundgaard edited this page Sep 1, 2019
·
8 revisions
ExactCountConstraint has two functions.
In its simplest use, it simply verifies the number of items in an array, collection or IEnumerable
, providing a way to count items that is independent of any Length
or Count
property.
When used with another constraint, it applies that constraint to each item in the array, collection or IEnumerable
, succeeding if the specified number of items succeed.
An exception is thrown if the actual value passed does not implement IEnumerable
.
ExactCountConstraint(int expectedCount)
ExactCountConstraint(int expectedCount, Constraint itemConstraint)
Has.Exactly(int expectedCount)...
int[] array = new int[] { 1, 2, 3 };
Assert.That(array, Has.Exactly(3).Items);
Assert.That(array, Has.Exactly(2).Items.GreaterThan(1));
Assert.That(array, Has.Exactly(3).LessThan(100));
Assert.That(array, Has.Exactly(2).Items.EqualTo(1).Or.EqualTo(3));
Assert.That(array, Has.Exactly(1).EqualTo(1).And.Exactly(1).EqualTo(3));
Note: The keyword Items
is optional when used before a constraint but required when merely counting items with no constraint specified.
-
PropertyConstraint - For constraints on the
Count
orLength
property, e.g.Has.Count.GreaterThan(10)
orHas.Length.EqualTo(6)
.
Copyright (c) 2018 The NUnit Project - Licensed under CC BY-NC-SA 4.0
-
NUnit
-
Release Notes
-
License
- Getting Started
- Writing Tests
- Running Tests
- Extending NUnit
- Technical Notes
-
Release Notes
- NUnit Xamarin Runners
- VS Test Adapter
- VS Test Generator
- NUnit Analyzers