add more tests - they all pass on windows / vs2017

tests/node_hash_policy_test.cc

@@ -0,0 +1,65 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <memory>
+#include "parallel_hashmap/phmap.h"
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace phmap {
+namespace container_internal {
+namespace {
+
+using ::testing::Pointee;
+
+struct Policy : node_hash_policy<int&, Policy> {
+  using key_type = int;
+  using init_type = int;
+
+  template <class Alloc>
+  static int* new_element(Alloc* alloc, int value) {
+    return new int(value);
+  }
+
+  template <class Alloc>
+  static void delete_element(Alloc* alloc, int* elem) {
+    delete elem;
+  }
+};
+
+using NodePolicy = hash_policy_traits<Policy>;
+
+struct NodeTest : ::testing::Test {
+  std::allocator<int> alloc;
+  int n = 53;
+  int* a = &n;
+};
+
+TEST_F(NodeTest, ConstructDestroy) {
+  NodePolicy::construct(&alloc, &a, 42);
+  EXPECT_THAT(a, Pointee(42));
+  NodePolicy::destroy(&alloc, &a);
+}
+
+TEST_F(NodeTest, transfer) {
+  int s = 42;
+  int* b = &s;
+  NodePolicy::transfer(&alloc, &a, &b);
+  EXPECT_EQ(&s, a);
+}
+
+}  // namespace
+}  // namespace container_internal
+}  // namespace phmap