Convert to Assert.That

C5.Tests/Arrays/ArrayListTest.cs

@@ -1166,24 +1166,12 @@ public void CopyToTooFar()
         [TestFixture]
         public class Sync
         {
-            private ArrayList<int> list;
-
-
-            [SetUp]
-            public void Init()
-            {
-                list = new ArrayList<int>();
-            }
-
-
-            [TearDown]
-            public void Dispose() { list.Dispose(); }
-
-
             [Test]
-            public void Get()
+            public void ArrayList_has_SyncRoot()
             {
-                Assert.IsNotNull(((System.Collections.IList)list).SyncRoot);
+                var list = new ArrayList<int>();
+
+                Assert.That(((System.Collections.IList)list).SyncRoot, Is.Not.Null);
             }
         }
     }

C5.Tests/Arrays/HashedArrayListTest.cs

@@ -1092,24 +1092,11 @@ public void CopyToTooFar()
         [TestFixture]
         public class Sync
         {
-            private HashedArrayList<int> list;
-
-
-            [SetUp]
-            public void Init()
-            {
-                list = new HashedArrayList<int>();
-            }
-
-
-            [TearDown]
-            public void Dispose() { list.Dispose(); }
-
-
             [Test]
-            public void Get()
+            public void HashedArrayList_has_SyncRoot()
             {
-                Assert.IsNotNull(((System.Collections.IList)list).SyncRoot);
+                var list = new HashedArrayList<int>();
+                Assert.That(((System.Collections.IList)list).SyncRoot, Is.Not.Null);
             }
         }
     }

C5.Tests/BasesTest.cs

@@ -34,7 +34,6 @@ public void Check()
                     thesize = 3
                 };
                 abt[2] = "aaa";
-                // Assert.IsFalse(abt.Check());
                 abt[0] = "##";
                 abt[1] = "##";
                 Assert.That(abt.Check(), Is.True);

C5.Tests/LinkedLists/HashedLinkedListTest.cs

@@ -499,24 +499,12 @@ public void CopyToTooFar()
         [TestFixture]
         public class Sync
         {
-            private HashedLinkedList<int> list;
-
-
-            [SetUp]
-            public void Init()
-            {
-                list = new HashedLinkedList<int>();
-            }
-
-
-            [TearDown]
-            public void Dispose() { list.Dispose(); }
-
-
             [Test]
-            public void Get()
+            public void HashedLinkedList_has_SyncRoot()
             {
-                Assert.IsNotNull(((System.Collections.IList)list).SyncRoot);
+                var list = new HashedLinkedList<int>();
+
+                Assert.That(((System.Collections.IList)list).SyncRoot, Is.Not.Null);
             }
         }
     }

C5.Tests/LinkedLists/LinkedListTest.cs

@@ -513,7 +513,7 @@ public void Init()
             [Test]
             public void Get()
             {
-                Assert.IsNotNull(((System.Collections.IList)list).SyncRoot);
+                Assert.That(((System.Collections.IList)list).SyncRoot, Is.Not.Null);
             }
         }
     }

C5.Tests/Refactored/ArrayListTests.cs

@@ -3,11 +3,21 @@
 
 using NUnit.Framework;
 using System;
+using SCG = System.Collections.Generic;
 
 namespace C5.Tests;
 
 public class ArrayListTests
 {
+    [Test]
+    public void ArrayList_Implements_IReadOnlyList()
+    {
+        var list = new ArrayList<int> { 0, 1, 2, 3, 4 } as SCG.IReadOnlyList<int>;
+
+        Assert.That(list, Has.Count.EqualTo(5));
+        Assert.That(list[2], Is.EqualTo(2));
+    }
+
     [Test]
     public void IList_index_set_given_null_when_T_is_value_type_throws()
     {

C5.Tests/Wrappers/GuardedDictionaryTests.cs

@@ -17,7 +17,7 @@ public void Keys_returns_GuardedCollectionValue()
 
             var guarded = new GuardedDictionary<int, string>(source);
 
-            Assert.IsAssignableFrom<GuardedCollectionValue<int>>(guarded.Keys);
+            Assert.That(guarded.Keys, Is.AssignableFrom<GuardedCollectionValue<int>>());
         }
 
         [Test]
@@ -47,7 +47,7 @@ public void Values_returns_GuardedCollectionValue()
 
             var guarded = new GuardedDictionary<int, string>(source);
 
-            Assert.IsAssignableFrom<GuardedCollectionValue<string>>(guarded.Values);
+            Assert.That(guarded.Values, Is.AssignableFrom<GuardedCollectionValue<string>>());
         }
 
         [Test]

C5.Tests/Wrappers/GuardedSortedDictionaryTests.cs

@@ -19,7 +19,7 @@ public void Keys_returns_GuardedSorted()
 
             var guarded = new GuardedSortedDictionary<int, string>(source);
 
-            Assert.IsAssignableFrom<GuardedSorted<int>>(guarded.Keys);
+            Assert.That(guarded.Keys, Is.AssignableFrom<GuardedSorted<int>>());
         }
 
         [Test]
@@ -53,7 +53,7 @@ public void Values_returns_GuardedCollectionValue()
 
             var guarded = new GuardedSortedDictionary<int, string>(source);
 
-            Assert.IsAssignableFrom<GuardedCollectionValue<string>>(guarded.Values);
+            Assert.That(guarded.Values, Is.AssignableFrom<GuardedCollectionValue<string>>());
         }
 
         [Test]