72 lines · cpp
1//===-- Unittests for cpp::tuple ------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/CPP/tuple.h"10#include <stddef.h>11 12#include "test/UnitTest/FPMatcher.h"13#include "test/UnitTest/Test.h"14 15using namespace LIBC_NAMESPACE::cpp;16 17TEST(LlvmLibcTupleTest, Construction) {18 tuple<int, double> t(42, 3.14);19 EXPECT_EQ(get<0>(t), 42);20 EXPECT_FP_EQ(get<1>(t), 3.14);21}22 23TEST(LlvmLibcTupleTest, MakeTuple) {24 auto t = make_tuple(1, 2.5, 'x');25 EXPECT_EQ(get<0>(t), 1);26 EXPECT_FP_EQ(get<1>(t), 2.5);27 EXPECT_EQ(get<2>(t), 'x');28}29 30TEST(LlvmLibcTupleTest, TieAssignment) {31 int a = 0;32 double b = 0;33 char c = 0;34 auto t = make_tuple(7, 8.5, 'y');35 tie(a, b, c) = t;36 EXPECT_EQ(a, 7);37 EXPECT_FP_EQ(b, 8.5);38 EXPECT_EQ(c, 'y');39}40 41TEST(LlvmLibcTupleTest, StructuredBindings) {42 auto t = make_tuple(7, 8.5, 'y');43 auto [x, y, z] = t;44 EXPECT_EQ(x, 7);45 EXPECT_FP_EQ(y, 8.5);46 EXPECT_EQ(z, 'y');47}48 49TEST(LlvmLibcTupleTest, TupleCat) {50 tuple<int, double> t(42, 3.14);51 auto t1 = make_tuple(1, 2.5, 'x');52 auto t2 = tuple_cat(t, t1);53 EXPECT_EQ(get<0>(t2), 42);54 EXPECT_FP_EQ(get<1>(t2), 3.14);55 EXPECT_EQ(get<2>(t2), 1);56 EXPECT_FP_EQ(get<3>(t2), 2.5);57 EXPECT_EQ(get<4>(t2), 'x');58}59 60TEST(LlvmLibcTupleTest, ConstTuple) {61 const auto t = make_tuple(100, 200.5);62 EXPECT_EQ(get<0>(t), 100);63 EXPECT_FP_EQ(get<1>(t), 200.5);64}65 66TEST(LlvmLibcTupleTest, RvalueAssignment) {67 auto t = make_tuple(0, 0.0);68 t = make_tuple(9, 9.5);69 EXPECT_EQ(get<0>(t), 9);70 EXPECT_FP_EQ(get<1>(t), 9.5);71}72