Added run-dictionary.c test to ciniparser
authorJoey Adams <joeyadams3.14159@gmail.com>
Wed, 15 Jul 2009 21:48:32 +0000 (17:48 -0400)
committerJoey Adams <joeyadams3.14159@gmail.com>
Wed, 15 Jul 2009 21:48:32 +0000 (17:48 -0400)
ccan/ciniparser/test/run-dictionary.c [new file with mode: 0644]

diff --git a/ccan/ciniparser/test/run-dictionary.c b/ccan/ciniparser/test/run-dictionary.c
new file mode 100644 (file)
index 0000000..54c3dd7
--- /dev/null
@@ -0,0 +1,226 @@
+#include "ciniparser/dictionary.h"
+#include "ciniparser/dictionary.c"
+
+#include "tap/tap.h"
+
+static void test_trivial(void) {
+       dictionary *map = dictionary_new(0);
+       char *notfound = (char*)0xDEADBEEF;
+       
+       ok1(dictionary_get(map, "notfound", notfound) == notfound);
+       
+       ok1(dictionary_get(map, "one", NULL) == NULL);
+       ok1(dictionary_set(map, "one", "1") == 0);
+       
+       ok1(dictionary_get(map, "two", NULL) == NULL);
+       ok1(dictionary_set(map, "two", "2") == 0);
+       
+       ok1(dictionary_get(map, "three", NULL) == NULL);
+       ok1(dictionary_set(map, "three", "3") == 0);
+       
+       ok1(dictionary_get(map, "four", NULL) == NULL);
+       ok1(dictionary_set(map, "four", "4") == 0);
+       
+       ok1(!strcmp(dictionary_get(map, "three", NULL), "3"));
+       ok1(!strcmp(dictionary_get(map, "one", NULL), "1"));
+       ok1(!strcmp(dictionary_get(map, "four", NULL), "4"));
+       ok1(!strcmp(dictionary_get(map, "two", NULL), "2"));
+       
+       ok1(map->n == 4);
+       
+       dictionary_del(map);
+}
+
+static void scramble(void *base, size_t nmemb, size_t size) {
+   char *i = base;
+   char *o;
+   size_t sd;
+   for (;nmemb>1;nmemb--) {
+      o = i + size*(random()%nmemb);
+      for (sd=size;sd--;) {
+         char tmp = *o;
+         *o++ = *i;
+         *i++ = tmp;
+      }
+   }
+}
+
+//#define RANDOM_STRING_READABLE
+
+static char *random_string(void) {
+       size_t len = random() % 100;
+       char *str = malloc(len+1);
+       char *i;
+       
+       for (i=str; len--; i++) {
+               #ifndef RANDOM_STRING_READABLE
+               char c = random();
+               *i = c ? c : ' ';
+               #else
+               //only generate characters [32,126]
+               char c = random()%95 + 32;
+               *i = c;
+               #endif
+       }
+       *i = 0;
+       
+       return str;
+}
+
+struct test_entry {
+       char *str;
+       char *value;
+};
+
+static int by_str(const void *ap, const void *bp) {
+       return strcmp(((struct test_entry*)ap)->str, ((struct test_entry*)bp)->str);
+}
+
+static void cull_duplicates(struct test_entry *entries, size_t *count) {
+       struct test_entry *i, *o, *e = entries + *count;
+       
+       qsort(entries, *count, sizeof(*entries), by_str);
+       
+       for (i=entries, o=entries; i<e;) {
+               //skip repeated strings
+               if (o>entries) {
+                       const char *last = o[-1].str;
+                       if (!strcmp(last, i->str)) {
+                               do {
+                                       free(i->str);
+                                       i++;
+                               } while(i<e && !strcmp(last, i->str));
+                               continue;
+                       }
+               }
+               
+               //write all entries with the same value (should also have same string)
+               {
+                       char *value = i->value;
+                       do *o++ = *i++; while(i<e && i->value == value);
+               }
+       }
+       
+       *count = o-entries;
+}
+
+static void free_test_entries(struct test_entry *entries, size_t count) {
+       struct test_entry *i = entries;
+       for (;count--;i++)
+               free(i->str);
+       free(entries);
+}
+
+static int test_dictionary(size_t count, FILE *out) {
+       dictionary *map = dictionary_new(0);
+       
+       #define print(tag, fmt, ...) do { \
+                       if (out) \
+                               fprintf(out, tag fmt "\n", ##__VA_ARGS__); \
+               } while(0)
+       #define debug(...) print("debug: ", __VA_ARGS__)
+       #define msg(...) print("info: ", __VA_ARGS__)
+       
+       struct test_entry *entries = malloc(sizeof(*entries) * count);
+       struct test_entry *i, *e = entries+count;
+       char *value_base = malloc(count), *value = value_base;
+       size_t unique_count = 0;
+       
+       //we use value to track whether an entry has been added or not
+       memset(value, 0, count);
+       
+       msg("Generating %zu test entries...", count);
+       
+       for (i=entries; i<e; value++) {
+               char *str = random_string();
+               size_t same_count = random()%5 ? random()%3 : random()%10;
+               
+               i->str = str;
+               i->value = value;
+               i++;
+               
+               for (;same_count-- && i<e; i++) {
+                       i->str = strdup(str);
+                       i->value = value;
+               }
+       }
+       
+       cull_duplicates(entries, &count);
+       e = entries+count;
+       scramble(entries, count, sizeof(*entries));
+       
+       #define err(...) do { \
+                       print("error: ", __VA_ARGS__); \
+                       goto fail; \
+               } while(0)
+       
+       msg("Inserting/looking up %zu entries...", count);
+       
+       for (i=entries; i<e; i++) {
+               char *value;
+               
+               debug("Looking up %s", i->str);
+               
+               value = dictionary_get(map, i->str, NULL);
+               
+               if (!value) {
+                       char value_str[64];
+                       
+                       if (*i->value)
+                               err("Previously inserted entry not found");
+                       
+                       debug("Not found; entering");
+                       
+                       /* Because dictionary only accepts strings, and we want
+                          to store pointer indices, we'll write the indices as
+                          decimal numbers :) */
+                       sprintf(value_str, "%lu", (unsigned long)(i->value - value_base));
+                       
+                       if (dictionary_set(map, i->str, value_str) != 0)
+                               err("dictionary_set had an error");
+                       
+                       *i->value = 1; //mark that the entry is entered
+                       
+                       unique_count++;
+               } else {
+                       if ((unsigned long)(i->value - value_base) !=
+                                       strtoul(value, NULL, 10))
+                               err("lookup returned incorrect value");
+                       if (!*i->value)
+                               err("lookup returned bogus value");
+               }
+       }
+       
+       if (map->n != unique_count)
+               err("Dictionary has incorrect count");
+       
+       printf("dictionary test passed after %zu inserts, %zu lookups (%zu total operations)\n", unique_count, (i-entries)-unique_count, i-entries);
+       
+       free_test_entries(entries, e-entries);
+       free(value_base);
+       dictionary_del(map);
+       return 1;
+
+fail:
+       printf("dictionary test failed after %zu inserts, %zu lookups (%zu total operations)\n", unique_count, (i-entries)-unique_count, i-entries);
+       
+       free_test_entries(entries, e-entries);
+       free(value_base);
+       dictionary_del(map);
+       return 0;
+       
+       #undef print
+       #undef err
+       #undef debug
+       #undef msg
+}
+
+int main(void)
+{
+       plan_tests(15);
+       
+       test_trivial();
+       ok1(test_dictionary(10000, NULL));
+       
+       return exit_status();
+}