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-exception
6//
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

source code of libc/test/src/stdio/printf_test.cpp