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27<h2>CollectionAssert (NUnit 2.4 / 2.5)</h2>
28<p>The CollectionAssert class provides a number of methods that are useful
29when examining collections and their contents or for comparing two collections.</p>
30
31<p>The <b>AreEqual</b> overloads succeed if the corresponding elements of the two
32collections are equal. <b>AreEquivalent</b> tests whether the collection contents
33are equal, but without regard to order. In both cases, elements are compared using
34NUnit's default equality comparison.</p>
35
36<p>Beginning with NUnit 2.4.6, these methods may be used on any object that
37implements IEnumerable. Prior to 2.4.6, only true collections were supported.
38
39<div class="code" style="width: 38em">
40<pre>CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
41 Type expectedType );
42CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
43 Type expectedType, string message );
44CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
45 Type expectedType, string message, params object[] args );
46
47CollectionAssert.AllItemsAreNotNull( IEnumerable collection );
48CollectionAssert.AllItemsAreNotNull( IEnumerable collection,
49 string message );
50CollectionAssert.AllItemsAreNotNull( IEnumerable collection,
51 string message, params object[] args );
52
53CollectionAssert.AllItemsAreUnique( IEnumerable collection );
54CollectionAssert.AllItemsAreUnique( IEnumerable collection,
55 string message );
56CollectionAssert.AllItemsAreUnique( IEnumerable collection,
57 string message, params object[] args );
58
59CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual );
60CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual,
61 string message );
62CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual
63 string message, params object[] args );
64
65CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual);
66CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual,
67 string message );
68CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual
69 string message, params object[] args );
70
71CollectionAssert.AreNotEqual( IEnumerable expected, IEnumerable actual );
72CollectionAssert.AreNotEqual( IEnumerable expected, IEnumerable actual,
73 string message );
74CollectionAssert.AreNotEqual( IEnumerableon expected, IEnumerable actual
75 string message, params object[] args );
76
77CollectionAssert.AreNotEquivalent( IEnumerable expected,
78 IEnumerable actual );
79CollectionAssert.AreNotEquivalent( IEnumerable expected,
80 IEnumerable actual, string message );
81CollectionAssert.AreNotEquivalent( IEnumerable expected,
82 IEnumerable actual, string message, params object[] args );
83
84CollectionAssert.Contains( IEnumerable expected, object actual );
85CollectionAssert.Contains( IEnumerable expected, object actual,
86 string message );
87CollectionAssert.Contains( IEnumerable expected, object actual
88 string message, params object[] args );
89
90CollectionAssert.DoesNotContain( IEnumerable expected, object actual );
91CollectionAssert.DoesNotContain( IEnumerable expected, object actual,
92 string message );
93CollectionAssert.DoesNotContain( IEnumerable expected, object actual
94 string message, params object[] args );
95
96CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset );
97CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset,
98 string message );
99CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset,
100 string message, params object[] args );
101
102CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset);
103CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset,
104 string message );
105CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset,
106 string message, params object[] args );
107
108CollectionAssert.IsEmpty( IEnumerable collection );
109CollectionAssert.IsEmpty( IEnumerable collection, string message );
110CollectionAssert.IsEmpty( IEnumerable collection, string message,
111 params object[] args );
112
113CollectionAssert.IsNotEmpty( IEnumerable collection );
114CollectionAssert.IsNotEmpty( IEnumerable collection, string message );
115CollectionAssert.IsNotEmpty( IEnumerable collection, string message,
116 params object[] args );
117</pre></div>
118
119<p>The following methods are available beginning with NUnit 2.5
120
121<div class="code" style="width: 38em"><pre>
122CollectionAssert.IsOrdered( IEnumerable collection );
123CollectionAssert.IsOrdered( IEnumerable collection, string message );
124CollectionAssert.IsOrdered( IEnumerable collection, string message,
125 params object[] args );
126
127CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer );
128CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer,
129 string message );
130CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer,
131 string message, params object[] args );
132</pre></div>
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