| //===-- Unittests for vprintf --------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // These tests are copies of the non-v variants of the printf functions. This is |
| // because these functions are identical in every way except for how the varargs |
| // are passed. |
| |
| #include "src/stdio/vprintf.h" |
| |
| #include "test/UnitTest/Test.h" |
| |
| int call_vprintf(const char *__restrict format, ...) { |
| va_list vlist; |
| va_start(vlist, format); |
| int ret = LIBC_NAMESPACE::vprintf(format, vlist); |
| va_end(vlist); |
| return ret; |
| } |
| |
| TEST(LlvmLibcVPrintfTest, PrintOut) { |
| int written; |
| |
| constexpr char simple[] = "A simple string with no conversions.\n"; |
| written = call_vprintf(simple); |
| EXPECT_EQ(written, static_cast<int>(sizeof(simple) - 1)); |
| |
| constexpr char numbers[] = "1234567890\n"; |
| written = call_vprintf("%s", numbers); |
| EXPECT_EQ(written, static_cast<int>(sizeof(numbers) - 1)); |
| |
| constexpr char format_more[] = "%s and more\n"; |
| constexpr char short_numbers[] = "1234"; |
| written = call_vprintf(format_more, short_numbers); |
| EXPECT_EQ(written, |
| static_cast<int>(sizeof(format_more) + sizeof(short_numbers) - 4)); |
| } |