| /* |
| Copyright (C) 2015-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <scratch_buffer.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| static bool |
| unchanged_array_size (struct scratch_buffer *buf, size_t a, size_t b) |
| { |
| size_t old_length = buf->length; |
| if (!scratch_buffer_set_array_size (buf, a, b)) |
| { |
| printf ("scratch_buffer_set_array_size failed: %zu %zu\n", |
| a, b); |
| return false; |
| } |
| if (old_length != buf->length) |
| { |
| printf ("scratch_buffer_set_array_size did not preserve size: %zu %zu\n", |
| a, b); |
| return false; |
| } |
| return true; |
| } |
| |
| static bool |
| array_size_must_fail (size_t a, size_t b) |
| { |
| for (int pass = 0; pass < 2; ++pass) |
| { |
| struct scratch_buffer buf; |
| scratch_buffer_init (&buf); |
| if (pass > 0) |
| if (!scratch_buffer_grow (&buf)) |
| { |
| printf ("scratch_buffer_grow in array_size_must_fail failed\n"); |
| return false; |
| } |
| if (scratch_buffer_set_array_size (&buf, a, b)) |
| { |
| printf ("scratch_buffer_set_array_size passed: %d %zu %zu\n", |
| pass, a, b); |
| return false; |
| } |
| if (buf.data != buf.__space.__c) |
| { |
| printf ("scratch_buffer_set_array_size did not free: %d %zu %zu\n", |
| pass, a, b); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| static int |
| do_test (void) |
| { |
| { |
| struct scratch_buffer buf; |
| scratch_buffer_init (&buf); |
| memset (buf.data, ' ', buf.length); |
| scratch_buffer_free (&buf); |
| } |
| { |
| struct scratch_buffer buf; |
| scratch_buffer_init (&buf); |
| memset (buf.data, ' ', buf.length); |
| size_t old_length = buf.length; |
| scratch_buffer_grow (&buf); |
| if (buf.length <= old_length) |
| { |
| printf ("scratch_buffer_grow did not enlarge buffer\n"); |
| return 1; |
| } |
| memset (buf.data, ' ', buf.length); |
| scratch_buffer_free (&buf); |
| } |
| { |
| struct scratch_buffer buf; |
| scratch_buffer_init (&buf); |
| memset (buf.data, '@', buf.length); |
| strcpy (buf.data, "prefix"); |
| size_t old_length = buf.length; |
| scratch_buffer_grow_preserve (&buf); |
| if (buf.length <= old_length) |
| { |
| printf ("scratch_buffer_grow_preserve did not enlarge buffer\n"); |
| return 1; |
| } |
| if (strcmp (buf.data, "prefix") != 0) |
| { |
| printf ("scratch_buffer_grow_preserve did not copy buffer\n"); |
| return 1; |
| } |
| for (unsigned i = 7; i < old_length; ++i) |
| if (((char *)buf.data)[i] != '@') |
| { |
| printf ("scratch_buffer_grow_preserve did not copy buffer (%u)\n", |
| i); |
| return 1; |
| } |
| scratch_buffer_free (&buf); |
| } |
| { |
| struct scratch_buffer buf; |
| scratch_buffer_init (&buf); |
| for (int pass = 0; pass < 4; ++pass) |
| { |
| if (!(unchanged_array_size (&buf, 0, 0) |
| && unchanged_array_size (&buf, 1, 0) |
| && unchanged_array_size (&buf, 0, 1) |
| && unchanged_array_size (&buf, -1, 0) |
| && unchanged_array_size (&buf, 0, -1) |
| && unchanged_array_size (&buf, 1ULL << 16, 0) |
| && unchanged_array_size (&buf, 0, 1ULL << 16) |
| && unchanged_array_size (&buf, (size_t) (1ULL << 32), 0) |
| && unchanged_array_size (&buf, 0, (size_t) (1ULL << 32)))) |
| return 1; |
| if (!scratch_buffer_grow (&buf)) |
| { |
| printf ("scratch_buffer_grow_failed (pass %d)\n", pass); |
| } |
| } |
| scratch_buffer_free (&buf); |
| } |
| { |
| if (!(array_size_must_fail (-1, 1) |
| && array_size_must_fail (-1, -1) |
| && array_size_must_fail (1, -1) |
| && array_size_must_fail (((size_t)-1) / 4, 4) |
| && array_size_must_fail (4, ((size_t)-1) / 4))) |
| return 1; |
| } |
| return 0; |
| } |
| |
| #define TEST_FUNCTION do_test () |
| #include "../test-skeleton.c" |