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110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
/*
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* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenity.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/TestSuite.h>
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#include <AK/Tuple.h>
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TEST_CASE(basic)
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{
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Tuple<int, String> value { 1, "foo" };
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EXPECT_EQ(value.get<int>(), 1);
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EXPECT_EQ(value.get<String>(), "foo");
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EXPECT_EQ(value.get<0>(), 1);
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EXPECT_EQ(value.get<1>(), "foo");
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// Move assignment
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value = { 2, "bar" };
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EXPECT_EQ(value.get<int>(), 2);
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EXPECT_EQ(value.get<String>(), "bar");
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EXPECT_EQ(value.get<0>(), 2);
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EXPECT_EQ(value.get<1>(), "bar");
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// Copy ctor
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auto other_value { value };
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EXPECT_EQ(other_value.get<int>(), 2);
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EXPECT_EQ(other_value.get<String>(), "bar");
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EXPECT_EQ(other_value.get<0>(), 2);
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EXPECT_EQ(other_value.get<1>(), "bar");
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// Move ctor
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auto moved_to_value { move(value) };
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EXPECT_EQ(moved_to_value.get<int>(), 2);
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EXPECT_EQ(moved_to_value.get<String>(), "bar");
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EXPECT_EQ(moved_to_value.get<0>(), 2);
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EXPECT_EQ(moved_to_value.get<1>(), "bar");
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// Copy assignment
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value = moved_to_value;
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EXPECT_EQ(moved_to_value.get<int>(), 2);
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EXPECT_EQ(moved_to_value.get<String>(), "bar");
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EXPECT_EQ(moved_to_value.get<0>(), 2);
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EXPECT_EQ(moved_to_value.get<1>(), "bar");
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EXPECT_EQ(value.get<int>(), 2);
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EXPECT_EQ(value.get<String>(), "bar");
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EXPECT_EQ(value.get<0>(), 2);
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EXPECT_EQ(value.get<1>(), "bar");
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}
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TEST_CASE(no_copy)
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{
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struct NoCopy {
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AK_MAKE_NONCOPYABLE(NoCopy);
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public:
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NoCopy(NoCopy&&) = default;
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NoCopy() = default;
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};
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// Deleted copy ctor should not cause an issue so long as the value isn't copied.
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Tuple<NoCopy, int, int> value { {}, 1, 2 };
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auto foo = move(value);
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EXPECT_EQ(foo.get<1>(), 1);
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EXPECT_EQ(foo.get<2>(), 2);
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}
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TEST_CASE(apply)
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{
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Tuple<int, int, String> args { 1, 2, "foo" };
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// With copy
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{
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bool was_called = false;
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args.apply_as_args([&](int a, int b, String c) {
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was_called = true;
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EXPECT_EQ(a, 1);
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EXPECT_EQ(b, 2);
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EXPECT_EQ(c, "foo");
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});
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EXPECT(was_called);
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}
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// With reference
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{
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bool was_called = false;
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args.apply_as_args([&](int& a, int& b, String& c) {
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was_called = true;
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EXPECT_EQ(a, 1);
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EXPECT_EQ(b, 2);
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EXPECT_EQ(c, "foo");
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});
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EXPECT(was_called);
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}
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// With const reference, taken from a const tuple
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{
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bool was_called = false;
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const auto& args_ref = args;
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args_ref.apply_as_args([&](const int& a, const int& b, const String& c) {
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was_called = true;
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EXPECT_EQ(a, 1);
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EXPECT_EQ(b, 2);
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EXPECT_EQ(c, "foo");
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});
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EXPECT(was_called);
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}
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}
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