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stdio-common: Add tests for formatted snprintf output specifiers

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Wire snprintf into test infrastructure for formatted printf output
specifiers.

Reviewed-by: DJ Delorie <dj@redhat.com>
This commit is contained in:
Maciej W. Rozycki 2024-11-07 06:14:24 +00:00
parent c683ac8520
commit 0b6379cb98
16 changed files with 341 additions and 1 deletions
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2
stdio-common/Makefile
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@ -23,7 +23,7 @@ subdir := stdio-common
include ../Makeconfig
# List of markers for printf family function tests.
xprintf-funcs := p as d f s
xprintf-funcs := p as d f s sn
# List of data types and formats for individual per-conversion printf tests.
fmt-convs := double ldouble

20
stdio-common/tst-printf-format-sn-c.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for the 'c' conversion.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-c.c"

20
stdio-common/tst-printf-format-sn-char.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for signed char conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-char.c"

20
stdio-common/tst-printf-format-sn-double.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for double conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-double.c"

20
stdio-common/tst-printf-format-sn-int.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-int.c"

20
stdio-common/tst-printf-format-sn-ldouble.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for long double conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-ldouble.c"

20
stdio-common/tst-printf-format-sn-llong.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for long long int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-llong.c"

20
stdio-common/tst-printf-format-sn-long.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for long int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-long.c"

20
stdio-common/tst-printf-format-sn-s.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for the 's' conversion.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-s.c"

20
stdio-common/tst-printf-format-sn-short.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for short int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-short.c"

20
stdio-common/tst-printf-format-sn-uchar.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for unsigned char conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-uchar.c"

20
stdio-common/tst-printf-format-sn-uint.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for unsigned int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-uint.c"

20
stdio-common/tst-printf-format-sn-ullong.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for unsigned long long int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-ullong.c"

20
stdio-common/tst-printf-format-sn-ulong.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for unsigned long int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-ulong.c"

20
stdio-common/tst-printf-format-sn-ushort.c Normal file
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@ -0,0 +1,20 @@
/* Test for formatted 'snprintf' output for unsigned short int conversions.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include "tst-printf-format-sn.h"
#include "tst-printf-format-skeleton-ushort.c"

60
stdio-common/tst-printf-format-sn.h Normal file
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@ -0,0 +1,60 @@
/* Test feature wrapper for formatted 'snprintf' output.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <support/next_to_fault.h>
#define SPRINTF_BUFFER_SIZE 65536
static struct support_next_to_fault ntf;
#define PREPARE printf_under_test_init
static void
printf_under_test_init (int argc, char **argv)
{
ntf = support_next_to_fault_allocate (SPRINTF_BUFFER_SIZE);
}
static void __attribute__ ((destructor))
printf_under_test_fini (void)
{
support_next_to_fault_free (&ntf);
}
#define printf_under_test(...) \
({ \
__label__ out; \
char *str = ntf.buffer; \
int result; \
\
result = snprintf (str, ntf.length, __VA_ARGS__); \
if (result < 0) \
{ \
perror ("snprintf"); \
goto out; \
} \
if (fwrite (str, sizeof (*str), result, stdout) != result) \
{ \
perror ("fwrite"); \
result = -1; \
} \
out: \
result; \
})