+/*
+ * Copyright 2017 Facebook, Inc.
+ *
+ * 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
+ *
+ * http://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 <folly/container/Array.h>
+#include <folly/portability/GTest.h>
+#include <string>
+
+using namespace std;
+using folly::make_array;
+
+TEST(make_array, base_case) {
+ auto arr = make_array<int>();
+ static_assert(
+ is_same<typename decltype(arr)::value_type, int>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 0);
+}
+
+TEST(make_array, deduce_size_primitive) {
+ auto arr = make_array<int>(1, 2, 3, 4, 5);
+ static_assert(
+ is_same<typename decltype(arr)::value_type, int>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 5);
+}
+
+TEST(make_array, deduce_size_class) {
+ auto arr = make_array<string>(string{"foo"}, string{"bar"});
+ static_assert(
+ is_same<typename decltype(arr)::value_type, std::string>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 2);
+ EXPECT_EQ(arr[1], "bar");
+}
+
+TEST(make_array, deduce_everything) {
+ auto arr = make_array(string{"foo"}, string{"bar"});
+ static_assert(
+ is_same<typename decltype(arr)::value_type, std::string>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 2);
+ EXPECT_EQ(arr[1], "bar");
+}
+
+TEST(make_array, fixed_common_type) {
+ auto arr = make_array<double>(1.0, 2.5f, 3, 4, 5);
+ static_assert(
+ is_same<typename decltype(arr)::value_type, double>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 5);
+}
+
+TEST(make_array, deduced_common_type) {
+ auto arr = make_array(1.0, 2.5f, 3, 4, 5);
+ static_assert(
+ is_same<typename decltype(arr)::value_type, double>::value,
+ "Wrong array type");
+ EXPECT_EQ(arr.size(), 5);
+}