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//===-- 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));
}
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