30 lines · cpp
1//===-- Unittests for printf ---------------------------------------------===//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/stdio/printf.h"10 11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcPrintfTest, PrintOut) {14 int written;15 16 constexpr char simple[] = "A simple string with no conversions.\n";17 written = LIBC_NAMESPACE::printf(simple);18 EXPECT_EQ(written, static_cast<int>(sizeof(simple) - 1));19 20 constexpr char numbers[] = "1234567890\n";21 written = LIBC_NAMESPACE::printf("%s", numbers);22 EXPECT_EQ(written, static_cast<int>(sizeof(numbers) - 1));23 24 constexpr char format_more[] = "%s and more\n";25 constexpr char short_numbers[] = "1234";26 written = LIBC_NAMESPACE::printf(format_more, short_numbers);27 EXPECT_EQ(written,28 static_cast<int>(sizeof(format_more) + sizeof(short_numbers) - 4));29}30