-/* PSPP - computes sample statistics.
- Copyright (C) 2007 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2007, 2010 Free Software Foundation, Inc.
- 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; either version 2 of the
- License, or (at your option) any later version.
+ 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, either version 3 of the License, or
+ (at your option) any later version.
- 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.
+ 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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* This is a test program for the routines defined in
range-map.c. This test program aims to be as comprehensive as
#include "xalloc.h"
\f
-/* Currently running test. */
-static const char *test_name;
-
/* Exit with a failure code.
(Place a breakpoint on this function while debugging.) */
static void
-check_die (void)
+check_die (void)
{
- exit (EXIT_FAILURE);
+ exit (EXIT_FAILURE);
}
/* If OK is not true, prints a message about failure on the
current source file and the given LINE and terminates. */
static void
-check_func (bool ok, int line)
+check_func (bool ok, int line)
{
- if (!ok)
+ if (!ok)
{
- printf ("Check failed in %s test at %s, line %d\n",
- test_name, __FILE__, line);
+ fprintf (stderr, "%s:%d: check failed\n", __FILE__, line);
check_die ();
}
}
\f
/* Swaps *A and *B. */
static void
-swap (int *a, int *b)
+swap (int *a, int *b)
{
int t = *a;
*a = *b;
if (cnt > 0)
{
size_t i = cnt - 1;
- while (i != 0)
+ while (i != 0)
{
i--;
if (values[i] < values[i + 1])
swap (values + i, values + j);
reverse (values + (i + 1), cnt - (i + 1));
return true;
- }
+ }
}
-
+
reverse (values, cnt);
}
-
+
return false;
}
/* Returns N!. */
static unsigned int
-factorial (unsigned int n)
+factorial (unsigned int n)
{
unsigned int value = 1;
/* Disallow N values that overflow on 32-bit machines. */
assert (n <= 12);
- for (; n > 1; )
+ for (; n > 1;)
value *= n--;
return value;
}
/* Tests whether PARTS is a K-part integer composition of N.
Returns true if so, false otherwise. */
static bool UNUSED
-is_k_composition (int n, int k, const int parts[])
+is_k_composition (int n, int k, const int parts[])
{
int sum;
int i;
already the greatest K-part composition of N (in which case
PARTS is unaltered). */
static bool
-next_k_composition (int n UNUSED, int k, int parts[])
+next_k_composition (int n UNUSED, int k, int parts[])
{
int x, i;
/* Sets the K integers in PARTS to the lexicographically first
K-part composition of N. */
static void
-first_k_composition (int n, int k, int parts[])
+first_k_composition (int n, int k, int parts[])
{
int i;
Returns true if successful, false if the set of compositions
has been exhausted. */
static bool
-next_composition (int n, int *k, int parts[])
+next_composition (int n, int *k, int parts[])
{
if (*k >= 1 && next_k_composition (n, *k, parts))
return true;
};
static struct element *
-range_map_node_to_element (struct range_map_node *node)
+range_map_node_to_element (struct range_map_node *node)
{
return range_map_data (node, struct element, node);
}
/* Element we expect to find. */
-struct expected_element
+struct expected_element
{
int x; /* Primary value. */
unsigned long int start; /* Start of region. */
/* Compares expected_element A and B and returns a strcmp()-type
result. */
static int
-compare_expected_element (const void *a_, const void *b_)
+compare_expected_element (const void *a_, const void *b_)
{
const struct expected_element *a = (const struct expected_element *) a_;
const struct expected_element *b = (const struct expected_element *) b_;
ELEMENTS[]. */
static void
check_range_map (struct range_map *rm,
- struct expected_element elements[], size_t elem_cnt)
+ struct expected_element elements[], size_t n_elems)
{
struct expected_element *sorted;
struct range_map_node *node;
size_t i;
- sorted = xnmalloc (elem_cnt, sizeof *sorted);
- memcpy (sorted, elements, elem_cnt * sizeof *elements);
- qsort (sorted, elem_cnt, sizeof *sorted, compare_expected_element);
-
- check (range_map_is_empty (rm) == (elem_cnt == 0));
+ sorted = xnmalloc (n_elems, sizeof *sorted);
+ memcpy (sorted, elements, n_elems * sizeof *elements);
+ qsort (sorted, n_elems, sizeof *sorted, compare_expected_element);
- for (i = 0; i < elem_cnt; i++)
+ check (range_map_is_empty (rm) == (n_elems == 0));
+
+ for (i = 0; i < n_elems; i++)
{
struct expected_element *e = &sorted[i];
unsigned long int position;
/* Check that range_map_lookup finds all the positions
within the element. */
- for (position = e->start; position < e->end; position++)
+ for (position = e->start; position < e->end; position++)
{
struct range_map_node *found = range_map_lookup (rm, position);
check (found != NULL);
range_map_lookup doesn't find any there. */
if (e->start > 0 && (i == 0 || e[-1].end < e->start))
check (range_map_lookup (rm, e->start - 1) == NULL);
- if (i == elem_cnt - 1 || e->end < e[1].start)
+ if (i == n_elems - 1 || e->end < e[1].start)
check (range_map_lookup (rm, e->end) == NULL);
}
for (node = (rand () % 2 ? range_map_first (rm) : range_map_next (rm, NULL)),
i = 0;
node != NULL;
- node = range_map_next (rm, node), i++)
+ node = range_map_next (rm, node), i++)
{
struct expected_element *e = &sorted[i];
check (range_map_node_to_element (node)->x == e->x);
}
- check (i == elem_cnt);
+ check (i == n_elems);
free (sorted);
}
in all possible orders, up to a specified maximum overall
range. */
static void
-test_insert (void)
+test_insert (void)
{
const int max_range = 7;
int cnt;
- for (cnt = 1; cnt <= max_range; cnt++)
+ for (cnt = 1; cnt <= max_range; cnt++)
{
- unsigned int composition_cnt;
+ unsigned int n_compositions;
struct expected_element *expected;
int *widths;
- int elem_cnt;
+ int n_elems;
int *order;
struct element *elements;
-
+
expected = xnmalloc (cnt, sizeof *expected);
widths = xnmalloc (cnt, sizeof *widths);
order = xnmalloc (cnt, sizeof *order);
elements = xnmalloc (cnt, sizeof *elements);
- elem_cnt = 0;
- composition_cnt = 0;
- while (next_composition (cnt, &elem_cnt, widths))
+ n_elems = 0;
+ n_compositions = 0;
+ while (next_composition (cnt, &n_elems, widths))
{
int i, j;
- unsigned int permutation_cnt;
+ unsigned int n_permutations;
- for (i = 0; i < elem_cnt; i++)
+ for (i = 0; i < n_elems; i++)
order[i] = i;
- permutation_cnt = 0;
- while (permutation_cnt == 0 || next_permutation (order, elem_cnt))
+ n_permutations = 0;
+ while (n_permutations == 0 || next_permutation (order, n_elems))
{
struct range_map rm;
- /* Inserts the elem_cnt elements with the given
+ /* Inserts the n_elems elements with the given
widths[] into T in the order given by order[]. */
range_map_init (&rm);
- for (i = 0; i < elem_cnt; i++)
+ for (i = 0; i < n_elems; i++)
{
unsigned long int start, end;
int idx;
expected[i].end = end;
check_range_map (&rm, expected, i + 1);
}
- permutation_cnt++;
+ n_permutations++;
}
- check (permutation_cnt == factorial (elem_cnt));
-
- composition_cnt++;
+ check (n_permutations == factorial (n_elems));
+
+ n_compositions++;
}
- check (composition_cnt == 1 << (cnt - 1));
+ check (n_compositions == 1 << (cnt - 1));
free (expected);
free (widths);
/* Tests deleting ranges from a range map in all possible orders,
up to a specified maximum overall range. */
static void
-test_delete (int gap)
+test_delete (int gap)
{
const int max_range = 7;
int cnt;
- for (cnt = 1; cnt <= max_range; cnt++)
+ for (cnt = 1; cnt <= max_range; cnt++)
{
- unsigned int composition_cnt;
+ unsigned int n_compositions;
struct expected_element *expected;
int *widths;
- int elem_cnt;
+ int n_elems;
int *order;
struct element *elements;
-
+
expected = xnmalloc (cnt, sizeof *expected);
widths = xnmalloc (cnt, sizeof *widths);
order = xnmalloc (cnt, sizeof *order);
elements = xnmalloc (cnt, sizeof *elements);
- elem_cnt = 0;
- composition_cnt = 0;
- while (next_composition (cnt, &elem_cnt, widths))
+ n_elems = 0;
+ n_compositions = 0;
+ while (next_composition (cnt, &n_elems, widths))
{
int i, j;
- unsigned int permutation_cnt;
+ unsigned int n_permutations;
- for (i = 0; i < elem_cnt; i++)
+ for (i = 0; i < n_elems; i++)
order[i] = i;
- permutation_cnt = 0;
- while (permutation_cnt == 0 || next_permutation (order, elem_cnt))
+ n_permutations = 0;
+ while (n_permutations == 0 || next_permutation (order, n_elems))
{
struct range_map rm;
unsigned long int start;
/* Insert all the elements. */
range_map_init (&rm);
start = 0;
- for (i = 0; i < elem_cnt; i++)
+ for (i = 0; i < n_elems; i++)
{
int width = widths[i] > gap ? widths[i] - gap : widths[i];
unsigned long int end = start + width;
range_map_insert (&rm, start, end - start,
&elements[i].node);
- for (j = 0; ; j++)
+ for (j = 0; ; j++)
{
- assert (j < elem_cnt);
- if (order[j] == i)
+ assert (j < n_elems);
+ if (order[j] == i)
{
expected[j].x = i;
expected[j].start = start;
break;
}
}
-
+
start += widths[i];
}
- check_range_map (&rm, expected, elem_cnt);
+ check_range_map (&rm, expected, n_elems);
/* Delete the elements in the specified order. */
- for (i = 0; i < elem_cnt; i++)
+ for (i = 0; i < n_elems; i++)
{
range_map_delete (&rm, &elements[order[i]].node);
- check_range_map (&rm, expected + i + 1, elem_cnt - i - 1);
+ check_range_map (&rm, expected + i + 1, n_elems - i - 1);
}
- permutation_cnt++;
+ n_permutations++;
}
- check (permutation_cnt == factorial (elem_cnt));
-
- composition_cnt++;
+ check (n_permutations == factorial (n_elems));
+
+ n_compositions++;
}
- check (composition_cnt == 1 << (cnt - 1));
+ check (n_compositions == 1 << (cnt - 1));
free (expected);
free (widths);
ranges in all possible orders, up to a specified maximum
overall range. */
static void
-test_delete_contiguous (void)
+test_delete_contiguous (void)
{
test_delete (0);
}
sometimes separated by gaps in all possible orders, up to a
specified maximum overall range. */
static void
-test_delete_gaps (void)
+test_delete_gaps (void)
{
test_delete (1);
}
\f
/* Main program. */
-/* Runs TEST_FUNCTION and prints a message about NAME. */
-static void
-run_test (void (*test_function) (void), const char *name)
-{
- test_name = name;
- putchar ('.');
- fflush (stdout);
- test_function ();
-}
+struct test
+ {
+ const char *name;
+ const char *description;
+ void (*function) (void);
+ };
+
+static const struct test tests[] =
+ {
+ {
+ "insert",
+ "insert",
+ test_insert
+ },
+ {
+ "delete-contiguous",
+ "delete from contiguous ranges",
+ test_delete_contiguous
+ },
+ {
+ "delete-gaps",
+ "delete from ranges separated by gaps",
+ test_delete_gaps
+ },
+ };
+
+enum { N_TESTS = sizeof tests / sizeof *tests };
int
-main (void)
+main (int argc, char *argv[])
{
- run_test (test_insert, "insert");
- run_test (test_delete_contiguous, "delete from contiguous ranges");
- run_test (test_delete_gaps, "delete from ranges separated by gaps");
- putchar ('\n');
+ int i;
- return 0;
+ if (argc != 2)
+ {
+ fprintf (stderr, "exactly one argument required; use --help for help\n");
+ return EXIT_FAILURE;
+ }
+ else if (!strcmp (argv[1], "--help"))
+ {
+ printf ("%s: test range map library\n"
+ "usage: %s TEST-NAME\n"
+ "where TEST-NAME is one of the following:\n",
+ argv[0], argv[0]);
+ for (i = 0; i < N_TESTS; i++)
+ printf (" %s\n %s\n", tests[i].name, tests[i].description);
+ return 0;
+ }
+ else
+ {
+ for (i = 0; i < N_TESTS; i++)
+ if (!strcmp (argv[1], tests[i].name))
+ {
+ tests[i].function ();
+ return 0;
+ }
+
+ fprintf (stderr, "unknown test %s; use --help for help\n", argv[1]);
+ return EXIT_FAILURE;
+ }
}
projects / pspp / blobdiff