Add conditions to EquivalenceAssertsTests for XUNIT_IMMUTABLE_COLLECT…

…IONS

test/test.xunit.assert/Asserts/EquivalenceAssertsTests.cs

@@ -1,11 +1,14 @@
 using System;
 using System.Collections.Generic;
-using System.Collections.Immutable;
 using System.IO;
 using System.Linq;
 using Xunit;
 using Xunit.Sdk;
 
+#if XUNIT_IMMUTABLE_COLLECTIONS
+using System.Collections.Immutable;
+#endif
+
 public class EquivalenceAssertsTests
 {
 	public class NullValues
@@ -654,6 +657,8 @@ public void Failure_EmbeddedArray_ExtraValueInActual()
 		}
 	}
 
+#if XUNIT_IMMUTABLE_COLLECTIONS
+
 	public class ImmutableArrayOfValueTypes_NotStrict
 	{
 		[Fact]
@@ -783,6 +788,8 @@ public void Failure_EmbeddedArray_ExtraValueInActual()
 		}
 	}
 
+#endif
+
 	public class ArrayOfObjects_NotStrict
 	{
 		[Fact]
@@ -1085,6 +1092,7 @@ public void ListIsEquivalentToArray()
 			Assert.Equivalent(new List<int> { 1, 2, 3 }, new[] { 1, 2, 3 });
 		}
 
+#if XUNIT_IMMUTABLE_COLLECTIONS
 		[Fact]
 		public void ArrayIsEquivalentToImmutableArray()
 		{
@@ -1102,6 +1110,7 @@ public void ImmutableListIsEquivalentToImmutableSortedSet()
 		{
 			Assert.Equivalent(new[] { 1, 2, 3 }.ToImmutableList(), new[] { 1, 2, 3 }.ToImmutableSortedSet());
 		}
+#endif
 	}
 
 	public class Dictionaries_NotStrict