Add GetGenericTypeDefinition() intrinsic tests

dotnet · Jan 18, 2024 · 93ae46f · 93ae46f
1 parent 859adb8
commit 93ae46f
Showing 1 changed file with 35 additions and 0 deletions.
diff --git a/src/tests/JIT/Intrinsics/TypeIntrinsics.cs b/src/tests/JIT/Intrinsics/TypeIntrinsics.cs
@@ -133,6 +133,7 @@ public static int TestEntryPoint()
         GetEnumUnderlyingType.TestGetEnumUnderlyingType();
 
         IsPrimitiveTests();
+        GetGenericTypeDefinitionTests();
 
         return 100 + _errors;
     }
@@ -186,6 +187,30 @@ private static void IsPrimitiveTests()
         IsFalse(typeof(Dictionary<,>).IsPrimitive);
     }
 
+    private static void GetGenericTypeDefinitionTests()
+    {
+        AreEqual(typeof(GenericEnumClass<SimpleEnum>).GetGenericTypeDefinition(), typeof(GenericEnumClass<>));
+        AreEqual(typeof(GenericEnumClass<>).GetGenericTypeDefinition(), typeof(GenericEnumClass<>));
+        AreEqual(typeof(IGenericInterface<string>).GetGenericTypeDefinition(), typeof(IGenericInterface<>));
+        AreEqual(typeof(IGenericInterface<>).GetGenericTypeDefinition(), typeof(IGenericInterface<>));
+        AreEqual(typeof(GenericStruct<string>).GetGenericTypeDefinition(), typeof(GenericStruct<>));
+        AreEqual(typeof(GenericStruct<>).GetGenericTypeDefinition(), typeof(GenericStruct<>));
+        AreEqual(typeof(SimpleEnum?).GetGenericTypeDefinition(), typeof(Nullable<>));
+        AreEqual(typeof(int?).GetGenericTypeDefinition(), typeof(Nullable<>));
+        AreEqual(typeof(IntPtr?).GetGenericTypeDefinition(), typeof(Nullable<>));
+        AreEqual(typeof(Nullable<>).GetGenericTypeDefinition(), typeof(Nullable<>));
+        AreEqual(typeof(KeyValuePair<int,string>).GetGenericTypeDefinition(), typeof(KeyValuePair<,>));
+        AreEqual(typeof(KeyValuePair<,>).GetGenericTypeDefinition(), typeof(KeyValuePair<,>));
+        AreEqual(typeof(Dictionary<int,string>).GetGenericTypeDefinition(), typeof(Dictionary<,>));
+        AreEqual(typeof(Dictionary<,>).GetGenericTypeDefinition(), typeof(Dictionary<,>));
+        AreEqual(typeof(List<string>).GetGenericTypeDefinition(), typeof(List<>));
+        AreEqual(typeof(List<>).GetGenericTypeDefinition(), typeof(List<>));
+        AreEqual(typeof(Action<>).GetGenericTypeDefinition(), typeof(Action<>));
+        AreEqual(typeof(Action<string>).GetGenericTypeDefinition(), typeof(Action<>));
+        AreEqual(typeof(Func<string, int>).GetGenericTypeDefinition(), typeof(Func<,>));
+        AreEqual(typeof(Func<,>).GetGenericTypeDefinition(), typeof(Func<,>));
+    }
+
     private static int _varInt = 42;
     private static int? _varNullableInt = 42;
     private static decimal _varDecimal = 42M;
@@ -239,6 +264,16 @@ static void IsFalse(bool expression, [CallerLineNumber] int line = 0, [CallerFil
         }
     }
 
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static void AreEqual(Type left, Type right, [CallerLineNumber] int line = 0, [CallerFilePath] string file = "")
+    {
+        if (left != right)
+        {
+            Console.WriteLine($"{file}:L{line} test failed (expected: '{left}' to be equal to '{right}').");
+            _errors++;
+        }
+    }
+
     static void ThrowsNRE(Action action, [CallerLineNumber] int line = 0, [CallerFilePath] string file = "")
     {
         try