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AK: Optional::operator=(Optional&&) should clear movee's has_value bit

We were forgetting to clear m_has_value in the Optional being moved
from when using operator=(Optional&&).
This commit is contained in:
Andreas Kling 2019-08-05 21:47:36 +02:00
parent cd08c8e1bf
commit 9553ecfe01
3 changed files with 34 additions and 0 deletions

30
AK/Tests/TestOptional.cpp Normal file
View file

@ -0,0 +1,30 @@
#include <AK/TestSuite.h>
#include <AK/AKString.h>
#include <AK/Optional.h>
TEST_CASE(basic_optional)
{
Optional<int> x;
EXPECT_EQ(x.has_value(), false);
x = 3;
EXPECT_EQ(x.has_value(), true);
EXPECT_EQ(x.value(), 3);
}
TEST_CASE(move_optional)
{
Optional<int> x;
EXPECT_EQ(x.has_value(), false);
x = 3;
EXPECT_EQ(x.has_value(), true);
EXPECT_EQ(x.value(), 3);
Optional<int> y;
y = move(x);
EXPECT_EQ(y.has_value(), true);
EXPECT_EQ(y.value(), 3);
EXPECT_EQ(x.has_value(), false);
}
TEST_MAIN(Optional)