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- /*
- * Copyright 2016-present 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);
- }
- TEST(make_array_with, example) {
- struct make_item {
- constexpr int operator()(size_t index) const {
- return index + 4;
- }
- };
- using folly::make_array_with;
- using folly::array_detail::make_array_with; // should not collide
- constexpr auto actual = make_array_with<3>(make_item{});
- constexpr auto expected = make_array<int>(4, 5, 6);
- EXPECT_EQ(expected, actual);
- }
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