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https://github.com/fmtlib/fmt.git
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114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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Tests of variadic function emulation macros.
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Copyright (c) 2012-2014, Victor Zverovich
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <utility>
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#include <gtest/gtest.h>
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#include "format.h"
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#define IDENTITY(x) x
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TEST(UtilTest, Gen) {
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int values[] = {FMT_GEN(10, IDENTITY)};
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for (int i = 0; i < 10; ++i)
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EXPECT_EQ(i, values[i]);
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}
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#define MAKE_PAIR(x, y) std::make_pair(x, y)
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TEST(UtilTest, ForEach) {
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std::pair<char, int> values[] = {
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FMT_FOR_EACH10(MAKE_PAIR, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j')
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};
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for (int i = 0; i < 10; ++i) {
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EXPECT_EQ('a' + i, values[i].first);
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EXPECT_EQ(i, values[i].second);
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}
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}
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TEST(UtilTest, NArg) {
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EXPECT_EQ(1, FMT_NARG(a));
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EXPECT_EQ(2, FMT_NARG(a, b));
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EXPECT_EQ(3, FMT_NARG(a, b, c));
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EXPECT_EQ(4, FMT_NARG(a, b, c, d));
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EXPECT_EQ(5, FMT_NARG(a, b, c, d, e));
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EXPECT_EQ(6, FMT_NARG(a, b, c, d, e, f));
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EXPECT_EQ(7, FMT_NARG(a, b, c, d, e, f, g));
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EXPECT_EQ(8, FMT_NARG(a, b, c, d, e, f, g, h));
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EXPECT_EQ(9, FMT_NARG(a, b, c, d, e, f, g, h, i));
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EXPECT_EQ(10, FMT_NARG(a, b, c, d, e, f, g, h, i, j));
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}
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int result;
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#define MAKE_TEST(func) \
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void func(const char *format, const fmt::ArgList &args) { \
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result = 0; \
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for (std::size_t i = 0, n = args.size(); i < n; ++i) \
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result += args[i].int_value; \
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}
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MAKE_TEST(TestFunc)
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typedef char Char;
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FMT_WRAP1(TestFunc, const char *, 1)
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TEST(UtilTest, Wrap1) {
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result = 0;
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TestFunc("", 42);
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EXPECT_EQ(42, result);
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}
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MAKE_TEST(TestVariadicVoid)
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FMT_VARIADIC_VOID(TestVariadicVoid, const char *)
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TEST(UtilTest, VariadicVoid) {
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result = 0;
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TestVariadicVoid("", 10, 20, 30, 40, 50, 60, 70, 80, 90, 100);
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EXPECT_EQ(550, result);
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}
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template <int>
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struct S {};
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#define GET_TYPE(n) S<n>
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int TestVariadic(FMT_GEN(10, GET_TYPE), const fmt::ArgList &args) { \
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int result = 0; \
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for (std::size_t i = 0, n = args.size(); i < n; ++i) \
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result += args[i].int_value; \
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return result;
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}
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FMT_VARIADIC(int, TestVariadic,
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S<0>, S<1>, S<2>, S<3>, S<4>, S<5>, S<6>, S<7>, S<8>, S<9>)
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#define MAKE_ARG(n) S<n>()
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TEST(UtilTest, Variadic) {
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EXPECT_EQ(550, TestVariadic(FMT_GEN(10, MAKE_ARG),
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10, 20, 30, 40, 50, 60, 70, 80, 90, 100));
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}
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