#993. Int64Pointer tests added for FFI library

LibTest/ffi/Pointer/Int64Pointer.asTypedList_t01.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 Int64List asTypedList(int length)
+/// Creates a typed list view backed by memory in the address space.
+///
+/// The returned view will allow access to the memory range from address to
+/// address + 8 * length.
+///
+/// The user has to ensure the memory range is accessible while using the
+/// returned list.
+///
+/// @description Check that this method returns a typed list view backed by
+/// memory in the address space.
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import 'dart:typed_data';
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p = calloc<Int64>(3);
+  p[0] = 3;
+  p[1] = 42;
+  p[2] = -1;
+  Int64List l = p.asTypedList(3);
+  Expect.equals(3, l[0]);
+  Expect.equals(42, l[1]);
+  Expect.equals(-1, l[2]);
+}

LibTest/ffi/Pointer/Int64Pointer.value_t01.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 int value
+/// The 64-bit two's complement integer at address.
+///
+/// @description Check that this getter/setter works as designed
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p = calloc<Int64>();
+  Expect.equals(0, p.value);
+  p.value = 42;
+  Expect.equals(42, p.value);
+}

LibTest/ffi/Pointer/Int64Pointer.value_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 int value
+/// The 64-bit two's complement integer at address.
+///
+/// @description Check that a Dart integer is not truncated before being stored
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int32> p = calloc<Int32>();
+  Expect.equals(0, p.value);
+  p.value = 0xFFFFFFFFFFFFFFFF;
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p.value);
+}

LibTest/ffi/Pointer/Int64Pointer_A01_t01.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 int operator [](int index)
+/// The int at address + 8 * index.
+///
+/// The 32-bit two's complement integer at address + 8 * index.
+///
+/// @description Check that operator [](int index) returns int at
+/// address + 8 * index.
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p1 = calloc<Int64>(2);
+  Pointer<Int64> p2 = new Pointer.fromAddress(p1.address + sizeOf<Int64>());
+  p1.value = 1;
+  p2.value = 42;
+  Expect.equals(1, p1[0]);
+  Expect.equals(42, p1[1]);
+}

LibTest/ffi/Pointer/Int64Pointer_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 int operator [](int index)
+///
+/// The 64-bit two's complement integer at address + 8 * index.
+///
+/// @description Check that a Dart integer is not truncated before being stored
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p1 = calloc<Int64>(2);
+  Pointer<Int64> p2 = new Pointer.fromAddress(p1.address + sizeOf<Int64>());
+  p1.value = 0xFFFFFFFFFFFFFFFF;
+  p2.value = 0xFFFFFFFFFFFFFFFF;
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p1[0]);
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p1[1]);
+}

LibTest/ffi/Pointer/Int64Pointer_A02_t01.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 void operator []=(int index, int value)
+/// The 64-bit two's complement integer at address + 8 * index.
+///
+/// @description Check that operator []=(int index) sets int at
+/// address + 8 * index.
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p1 = calloc<Int64>(2);
+  Pointer<Int64> p2 = new Pointer.fromAddress(p1.address + sizeOf<Int64>());
+  p1[0] = 1;
+  p1[1] = 42;
+  Expect.equals(1, p1[0]);
+  Expect.equals(42, p1[1]);
+  Expect.equals(42, p2.value);
+}

LibTest/ffi/Pointer/Int64Pointer_A02_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 void operator []=(int index, int value)
+/// The 64-bit two's complement integer at address + 8 * index.
+///
+/// @description Check that a Dart integer is not truncated before being stored
+/// @author sgrekhov@unipro.ru
+
+import "dart:ffi";
+import "package:ffi/ffi.dart";
+import '../../../Utils/expect.dart';
+
+void main() {
+  Pointer<Int64> p1 = calloc<Int64>(2);
+  Pointer<Int64> p2 = new Pointer.fromAddress(p1.address + sizeOf<Int64>());
+  p1[0] = 0xFFFFFFFFFFFFFFFF;
+  p1[1] = 0xFFFFFFFFFFFFFFFF;
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p1[0]);
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p1[1]);
+  Expect.equals(0xFFFFFFFFFFFFFFFF, p2.value);
+}