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55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <AK/Optional.h>
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#include <AK/String.h>
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TEST_CASE(basic_optional)
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{
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Optional<int> x;
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EXPECT_EQ(x.has_value(), false);
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x = 3;
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EXPECT_EQ(x.has_value(), true);
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EXPECT_EQ(x.value(), 3);
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}
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TEST_CASE(move_optional)
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{
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Optional<int> x;
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EXPECT_EQ(x.has_value(), false);
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x = 3;
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EXPECT_EQ(x.has_value(), true);
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EXPECT_EQ(x.value(), 3);
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Optional<int> y;
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y = move(x);
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EXPECT_EQ(y.has_value(), true);
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EXPECT_EQ(y.value(), 3);
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EXPECT_EQ(x.has_value(), false);
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}
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TEST_CASE(optional_leak_1)
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{
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struct Structure {
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Optional<String> str;
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};
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// This used to leak, it does not anymore.
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Vector<Structure> vec;
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vec.append({ "foo" });
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EXPECT_EQ(vec[0].str.has_value(), true);
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EXPECT_EQ(vec[0].str.value(), "foo");
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}
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TEST_CASE(short_notation)
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{
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Optional<StringView> value = "foo";
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EXPECT_EQ(value->length(), 3u);
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EXPECT_EQ(*value, "foo");
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}
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