| 21 | using namespace oneflow::maybe; |
| 22 | |
| 23 | TEST(Maybe, Basic) { |
| 24 | using Error = simple::StackedError<int>; |
| 25 | Maybe<int, Error> a{1}, b{a}, c{Error(2)}, d{c}; |
| 26 | |
| 27 | ASSERT_TRUE(a); |
| 28 | ASSERT_TRUE(b); |
| 29 | ASSERT_FALSE(c); |
| 30 | ASSERT_FALSE(d); |
| 31 | |
| 32 | ASSERT_EQ(details::MaybePrivateScope::Value(a), 1); |
| 33 | ASSERT_EQ(details::MaybePrivateScope::Value(b), 1); |
| 34 | |
| 35 | a = 2; |
| 36 | ASSERT_EQ(details::MaybePrivateScope::Value(a), 2); |
| 37 | ASSERT_EQ(details::MaybePrivateScope::Value(b), 1); |
| 38 | |
| 39 | ASSERT_EQ(details::MaybePrivateScope::StackedError(c).Error(), 2); |
| 40 | ASSERT_EQ(details::MaybePrivateScope::StackedError(d).Error(), 2); |
| 41 | |
| 42 | a = c; |
| 43 | ASSERT_EQ(details::MaybePrivateScope::StackedError(a).Error(), 2); |
| 44 | } |
| 45 | |
| 46 | TEST(Maybe, NonPOD) { |
| 47 | using Error = simple::StackedError<std::string>; |