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- /*
- * Copyright 2014-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 <vector>
- #include <glog/logging.h>
- #include <folly/Memory.h>
- #include <folly/gen/Base.h>
- #include <folly/gen/ParallelMap.h>
- #include <folly/portability/GTest.h>
- using namespace folly;
- using namespace folly::gen;
- TEST(Pmap, InfiniteEquivalent) {
- // apply
- {
- // clang-format off
- auto mapResult
- = seq(1)
- | map([](int x) { return x * x; })
- | until([](int x) { return x > 1000 * 1000; })
- | as<std::vector<int>>();
- auto pmapResult
- = seq(1)
- | pmap([](int x) { return x * x; }, 4)
- | until([](int x) { return x > 1000 * 1000; })
- | as<std::vector<int>>();
- // clang-format on
- EXPECT_EQ(pmapResult, mapResult);
- }
- // foreach
- {
- // clang-format off
- auto mapResult
- = seq(1, 10)
- | map([](int x) { return x * x; })
- | as<std::vector<int>>();
- auto pmapResult
- = seq(1, 10)
- | pmap([](int x) { return x * x; }, 4)
- | as<std::vector<int>>();
- // clang-format on
- EXPECT_EQ(pmapResult, mapResult);
- }
- }
- TEST(Pmap, Empty) {
- // apply
- {
- // clang-format off
- auto mapResult
- = seq(1)
- | map([](int x) { return x * x; })
- | until([](int) { return true; })
- | as<std::vector<int>>();
- auto pmapResult
- = seq(1)
- | pmap([](int x) { return x * x; }, 4)
- | until([](int) { return true; })
- | as<std::vector<int>>();
- // clang-format on
- EXPECT_EQ(mapResult.size(), 0);
- EXPECT_EQ(pmapResult, mapResult);
- }
- // foreach
- {
- // clang-format off
- auto mapResult
- = empty<int>()
- | map([](int x) { return x * x; })
- | as<std::vector<int>>();
- auto pmapResult
- = empty<int>()
- | pmap([](int x) { return x * x; }, 4)
- | as<std::vector<int>>();
- // clang-format on
- EXPECT_EQ(mapResult.size(), 0);
- EXPECT_EQ(pmapResult, mapResult);
- }
- }
- TEST(Pmap, Rvalues) {
- // apply
- {
- // clang-format off
- auto mapResult
- = seq(1)
- | map([](int x) { return std::make_unique<int>(x); })
- | map([](std::unique_ptr<int> x) {
- return std::make_unique<int>(*x * *x); })
- | map([](std::unique_ptr<int> x) { return *x; })
- | take(1000)
- | sum;
- auto pmapResult
- = seq(1)
- | pmap([](int x) { return std::make_unique<int>(x); })
- | pmap([](std::unique_ptr<int> x) {
- return std::make_unique<int>(*x * *x); })
- | pmap([](std::unique_ptr<int> x) { return *x; })
- | take(1000)
- | sum;
- // clang-format on
- EXPECT_EQ(pmapResult, mapResult);
- }
- // foreach
- {
- // clang-format off
- auto mapResult
- = seq(1, 1000)
- | map([](int x) { return std::make_unique<int>(x); })
- | map([](std::unique_ptr<int> x) {
- return std::make_unique<int>(*x * *x); })
- | map([](std::unique_ptr<int> x) { return *x; })
- | sum;
- auto pmapResult
- = seq(1, 1000)
- | pmap([](int x) { return std::make_unique<int>(x); })
- | pmap([](std::unique_ptr<int> x) {
- return std::make_unique<int>(*x * *x); })
- | pmap([](std::unique_ptr<int> x) { return *x; })
- | sum;
- // clang-format on
- EXPECT_EQ(pmapResult, mapResult);
- }
- }
- int main(int argc, char* argv[]) {
- testing::InitGoogleTest(&argc, argv);
- gflags::ParseCommandLineFlags(&argc, &argv, true);
- return RUN_ALL_TESTS();
- }
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