Add ArrayList IList tests

- Fix IList_NonGeneric tests to work with fixed size lists

1 files changed, 95 insertions, 0 deletions

diff --git a/src/System.Collections.NonGeneric/tests/ArrayList/ArrayList.IList.Tests.cs b/src/System.Collections.NonGeneric/tests/ArrayList/ArrayList.IList.Tests.cs
new file mode 100644
index 0000000000..2c189c7e77
--- /dev/null
+++ b/src/System.Collections.NonGeneric/tests/ArrayList/ArrayList.IList.Tests.cs
@@ -0,0 +1,95 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Collections.Generic;
+using Xunit;
+
+namespace System.Collections.Tests
+{
+    public class ArrayListBasicTests : ArrayListIListTestBase
+    {
+        protected override IList NonGenericIListFactory() => new ArrayList();
+    }
+
+    public class ArrayListSynchronizedTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedIsSynchronized => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.Synchronized(Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListSynchronizedILstTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedIsSynchronized => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.Synchronized((IList)Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListFixedSizeTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedFixedSize => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.FixedSize(Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListFixedIListSizeTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedFixedSize => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.FixedSize((IList)Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListReadOnlyTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedFixedSize => true;
+        protected override bool IsReadOnly => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.ReadOnly(Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListReadOnlyIListTests : ArrayListIListTestBase
+    {
+        protected override bool ExpectedFixedSize => true;
+        protected override bool IsReadOnly => true;
+
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.ReadOnly((IList)Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListAdapterTests : ArrayListIListTestBase
+    {
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => ArrayList.Adapter(Helpers.CreateIntArrayList(count));
+    }
+
+    public class ArrayListRangeTests : ArrayListIListTestBase
+    {
+        protected override IList NonGenericIListFactory() => NonGenericIListFactory(0);
+        protected override IList NonGenericIListFactory(int count) => Helpers.CreateIntArrayList(count).GetRange(0, count);
+    }
+
+    public abstract class ArrayListIListTestBase : IList_NonGeneric_Tests
+    {
+        protected override bool Enumerator_Current_UndefinedOperation_Throws => true;
+
+        protected override Type ICollection_NonGeneric_CopyTo_ArrayOfEnumType_ThrowType => typeof(InvalidCastException);
+        protected override Type ICollection_NonGeneric_CopyTo_ArrayOfIncorrectReferenceType_ThrowType => typeof(InvalidCastException);
+        protected override Type ICollection_NonGeneric_CopyTo_ArrayOfIncorrectValueType_ThrowType => typeof(InvalidCastException);
+        protected override Type ICollection_NonGeneric_CopyTo_NonZeroLowerBound_ThrowType => typeof(ArgumentOutOfRangeException);
+
+        protected override object CreateT(int seed)
+        {
+            int stringLength = seed % 10 + 5;
+            Random rand = new Random(seed);
+            byte[] bytes = new byte[stringLength];
+            rand.NextBytes(bytes);
+            return Convert.ToBase64String(bytes);
+        }
+    }
+}