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Justine Tunney 2020-06-15 07:18:57 -07:00
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test/libc/stdio/fgetc_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/calls/calls.h"
#include "libc/stdio/stdio.h"
#include "libc/testlib/testlib.h"
int pipefd[2];
FILE *f, *reader, *writer;
TEST(fgetc, testEnd) {
f = fmemopen(NULL, BUFSIZ, "r+");
EXPECT_EQ(EOF, fgetc(f));
EXPECT_TRUE(feof(f));
EXPECT_FALSE(ferror(f));
EXPECT_EQ(0, fclose(f));
}
TEST(fgetwc, testEnd) {
f = fmemopen(NULL, BUFSIZ, "r+");
EXPECT_EQ(WEOF, fgetwc(f));
EXPECT_TRUE(feof(f));
EXPECT_FALSE(ferror(f));
EXPECT_EQ(0, fclose(f));
}
TEST(fgetwc, testMultibyte) {
f = fmemopen(NULL, BUFSIZ, "r+");
EXPECT_EQ(L'𝑥', fputwc(L'𝑥', f));
EXPECT_EQ(L'𝑦', fputwc(L'𝑦', f));
EXPECT_EQ(L'𝑧', fputwc(L'𝑧', f));
EXPECT_EQ(L'𝑥', fgetwc(f));
EXPECT_EQ(L'𝑦', fgetwc(f));
EXPECT_EQ(L'𝑧', fgetwc(f));
EXPECT_EQ(WEOF, fgetwc(f));
EXPECT_TRUE(feof(f));
fclose(f);
}
TEST(fgetc, testPipe) {
ASSERT_NE(-1, pipe(pipefd));
writer = fdopen(pipefd[1], "w");
reader = fdopen(pipefd[0], "r");
EXPECT_EQ('a', fputc('a', writer));
EXPECT_EQ('b', fputc('b', writer));
EXPECT_EQ('c', fputc('c', writer));
EXPECT_EQ(3, fflush(writer));
EXPECT_EQ('a', fgetc(reader));
EXPECT_EQ('b', fgetc(reader));
EXPECT_EQ('c', fgetc(reader));
EXPECT_EQ(0, fclose(reader));
EXPECT_EQ(0, fclose(writer));
}