| //===-- Unittests for putc ---------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/stdio/fclose.h" |
| #include "src/stdio/ferror.h" |
| #include "src/stdio/fopen.h" |
| #include "src/stdio/fread.h" |
| |
| #include "src/stdio/putc.h" |
| |
| #include "test/UnitTest/Test.h" |
| |
| #include <stdio.h> |
| |
| TEST(LlvmLibcPutcTest, WriteToFile) { |
| constexpr char FILENAME[] = "testdata/putc_output.test"; |
| ::FILE *file = LIBC_NAMESPACE::fopen(FILENAME, "w"); |
| ASSERT_FALSE(file == nullptr); |
| |
| constexpr char simple[] = "simple letters"; |
| for (size_t i = 0; i < sizeof(simple); ++i) { |
| ASSERT_EQ(LIBC_NAMESPACE::putc(simple[i], file), 0); |
| } |
| |
| ASSERT_EQ(0, LIBC_NAMESPACE::fclose(file)); |
| |
| file = LIBC_NAMESPACE::fopen(FILENAME, "r"); |
| ASSERT_FALSE(file == nullptr); |
| char data[50]; |
| |
| ASSERT_EQ(LIBC_NAMESPACE::fread(data, 1, sizeof(simple) - 1, file), |
| sizeof(simple) - 1); |
| data[sizeof(simple) - 1] = '\0'; |
| |
| ASSERT_STREQ(data, simple); |
| |
| ASSERT_EQ(LIBC_NAMESPACE::ferror(file), 0); |
| EXPECT_LT(LIBC_NAMESPACE::putc('L', file), 0); |
| |
| ASSERT_EQ(LIBC_NAMESPACE::fclose(file), 0); |
| } |