2 * Copyright 2016 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/ConditionallyExistent.h>
19 #include <gtest/gtest.h>
22 using namespace folly;
26 class ConditionallyExistentTest : public testing::Test {};
29 TEST_F(ConditionallyExistentTest, WhenConditionFalse) {
30 folly::ConditionallyExistent<string, false> foobar("hello world");
31 EXPECT_FALSE(foobar.present());
33 foobar.with([&](const string&) { called = true; });
37 TEST_F(ConditionallyExistentTest, WhenConditionTrue) {
38 folly::ConditionallyExistent<string, true> foobar("hello world");
39 EXPECT_TRUE(foobar.present());
41 foobar.with([&](const string&) { called = true; });