133 lines
2.9 KiB
C++
133 lines
2.9 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio_ext.h>
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <math.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <locale.h>
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#include "TemporaryFile.h"
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TEST(stdio_ext, __fbufsize) {
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FILE* fp = fopen("/proc/version", "r");
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char buf[128];
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ASSERT_EQ(0, setvbuf(fp, buf, _IOFBF, 1));
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ASSERT_EQ(1U, __fbufsize(fp));
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ASSERT_EQ(0, setvbuf(fp, buf, _IOFBF, 8));
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ASSERT_EQ(8U, __fbufsize(fp));
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fclose(fp);
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}
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TEST(stdio_ext, __flbf) {
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FILE* fp = fopen("/proc/version", "r");
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ASSERT_FALSE(__flbf(fp));
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char buf[128];
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ASSERT_EQ(0, setvbuf(fp, buf, _IOLBF, sizeof(buf)));
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ASSERT_TRUE(__flbf(fp));
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fclose(fp);
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}
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TEST(stdio_ext, __fpending) {
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FILE* fp = fopen("/dev/null", "w");
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ASSERT_EQ(0U, __fpending(fp));
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ASSERT_EQ('x', fputc('x', fp));
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ASSERT_EQ(1U, __fpending(fp));
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ASSERT_EQ('y', fputc('y', fp));
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ASSERT_EQ(2U, __fpending(fp));
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fflush(fp);
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ASSERT_EQ(0U, __fpending(fp));
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fclose(fp);
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}
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TEST(stdio_ext, __fpurge) {
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FILE* fp = tmpfile();
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ASSERT_EQ('a', fputc('a', fp));
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ASSERT_EQ(1U, __fpending(fp));
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__fpurge(fp);
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ASSERT_EQ(0U, __fpending(fp));
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ASSERT_EQ('b', fputc('b', fp));
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ASSERT_EQ('\n', fputc('\n', fp));
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ASSERT_EQ(2U, __fpending(fp));
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rewind(fp);
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char buf[16];
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char* s = fgets(buf, sizeof(buf), fp);
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ASSERT_TRUE(s != NULL);
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ASSERT_STREQ("b\n", s);
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fclose(fp);
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}
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TEST(stdio_ext, _flushlbf) {
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FILE* fp = fopen("/dev/null", "w");
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char buf[128];
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ASSERT_EQ(0, setvbuf(fp, buf, _IOLBF, sizeof(buf)));
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ASSERT_EQ('a', fputc('a', fp));
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ASSERT_EQ(1U, __fpending(fp));
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_flushlbf();
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ASSERT_EQ(0U, __fpending(fp));
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fclose(fp);
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}
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TEST(stdio_ext, __freadable__fwritable) {
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FILE* fp = fopen("/dev/null", "r");
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ASSERT_TRUE(__freadable(fp));
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ASSERT_FALSE(__fwritable(fp));
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fclose(fp);
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fp = fopen("/dev/null", "w");
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ASSERT_FALSE(__freadable(fp));
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ASSERT_TRUE(__fwritable(fp));
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fclose(fp);
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fp = fopen("/dev/null", "w+");
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ASSERT_TRUE(__freadable(fp));
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ASSERT_TRUE(__fwritable(fp));
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fclose(fp);
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}
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TEST(stdio_ext, __fsetlocking) {
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FILE* fp = fopen("/proc/version", "r");
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// Android doesn't actually support the other modes.
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ASSERT_EQ(FSETLOCKING_INTERNAL, __fsetlocking(fp, FSETLOCKING_QUERY));
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fclose(fp);
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}
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