1*ad233c60SMichael Jones //===-- Unittests for printf ---------------------------------------------===// 2*ad233c60SMichael Jones // 3*ad233c60SMichael Jones // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*ad233c60SMichael Jones // See https://llvm.org/LICENSE.txt for license information. 5*ad233c60SMichael Jones // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*ad233c60SMichael Jones // 7*ad233c60SMichael Jones //===----------------------------------------------------------------------===// 8*ad233c60SMichael Jones 9*ad233c60SMichael Jones #include "src/stdio/printf.h" 10*ad233c60SMichael Jones 11*ad233c60SMichael Jones #include "utils/UnitTest/Test.h" 12*ad233c60SMichael Jones TEST(LlvmLibcPrintfTest,PrintOut)13*ad233c60SMichael JonesTEST(LlvmLibcPrintfTest, PrintOut) { 14*ad233c60SMichael Jones int written; 15*ad233c60SMichael Jones 16*ad233c60SMichael Jones constexpr char simple[] = "A simple string with no conversions.\n"; 17*ad233c60SMichael Jones written = __llvm_libc::printf(simple); 18*ad233c60SMichael Jones EXPECT_EQ(written, static_cast<int>(sizeof(simple) - 1)); 19*ad233c60SMichael Jones 20*ad233c60SMichael Jones constexpr char numbers[] = "1234567890\n"; 21*ad233c60SMichael Jones written = __llvm_libc::printf("%s", numbers); 22*ad233c60SMichael Jones EXPECT_EQ(written, static_cast<int>(sizeof(numbers) - 1)); 23*ad233c60SMichael Jones 24*ad233c60SMichael Jones constexpr char format_more[] = "%s and more\n"; 25*ad233c60SMichael Jones constexpr char short_numbers[] = "1234"; 26*ad233c60SMichael Jones written = __llvm_libc::printf(format_more, short_numbers); 27*ad233c60SMichael Jones EXPECT_EQ(written, 28*ad233c60SMichael Jones static_cast<int>(sizeof(format_more) + sizeof(short_numbers) - 4)); 29*ad233c60SMichael Jones } 30