#993. Pointer equality tests added

LibTest/ffi/Pointer/equals_A01_t01.dart

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
+ * for details. All rights reserved. Use of this source code is governed by a
+ * BSD-style license that can be found in the LICENSE file.
+ */
+/**
+ * @assertion bool operator == (Object other)
+ *  override
+ *  Equality for Pointers only depends on their address.
+ *
+ * @description Checks that equality for Pointers only depends on their address.
+ * @author sgrekhov@unipro.ru
+ */
+import "dart:ffi";
+import '../ffi_utils.dart';
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int8> p1 = calloc<Int8>();
+  Pointer<Int8> p2 = calloc<Int8>();
+  try {
+    Expect.isFalse(p1 == p2);
+    Expect.isTrue(p1 != p2);
+    Pointer<Int8> p3 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p3);
+  } finally {
+    calloc.free(p1);
+    calloc.free(p2);
+  }
+}

LibTest/ffi/Pointer/equals_A01_t02.dart

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+/*
+ * Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
+ * for details. All rights reserved. Use of this source code is governed by a
+ * BSD-style license that can be found in the LICENSE file.
+ */
+/**
+ * @assertion bool operator == (Object other)
+ *  override
+ *  Equality for Pointers only depends on their address.
+ *
+ * @description Checks that equality for Pointers only depends on their address.
+ * @author sgrekhov@unipro.ru
+ */
+import "dart:ffi";
+import '../ffi_utils.dart';
+import '../../../Utils/expect.dart';
+
+main() {
+  Pointer<Int8> p1 = calloc();
+  try {
+    Pointer<Int16> p2 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p2);
+    Pointer<Int32> p3 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p3);
+    Pointer<Int64> p4 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p4);
+    Pointer<Uint8> p5 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p5);
+    Pointer<Uint16> p6 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p6);
+    Pointer<Uint32> p7 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p7);
+    Pointer<Uint64> p8 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p8);
+    Pointer<Float> p9 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p9);
+    Pointer<Double> p10 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p10);
+    Pointer<IntPtr> p11 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p11);
+    Pointer<Pointer<Int32>> p12 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p12);
+    Pointer<Array<Int32>> p13 = new Pointer.fromAddress(p1.address);
+    Expect.isTrue(p1 == p13);
+  } finally {
+    calloc.free(p1);
+  }
+}