]> git.ozlabs.org Git - ccan/blobdiff - ccan/stringmap/test/run.c
Added module stringmap
[ccan] / ccan / stringmap / test / run.c
diff --git a/ccan/stringmap/test/run.c b/ccan/stringmap/test/run.c
new file mode 100644 (file)
index 0000000..37e98e6
--- /dev/null
@@ -0,0 +1,203 @@
+#include "stringmap/stringmap.h"
+#include "stringmap/stringmap.c"
+
+#include "tap/tap.h"
+
+static void test_trivial(void) {
+       stringmap(int) map = stringmap_new(NULL);
+       
+       ok1(stringmap_lookup(map, "one") == NULL);
+       *stringmap_enter(map, "one") = 1;
+       
+       ok1(stringmap_lookup(map, "two") == NULL);
+       *stringmap_enter(map, "two") = 2;
+       
+       ok1(stringmap_lookup(map, "three") == NULL);
+       *stringmap_enter(map, "three") = 3;
+       
+       ok1(stringmap_lookup(map, "four") == NULL);
+       *stringmap_enter(map, "four") = 4;
+       
+       ok1(*stringmap_lookup(map, "three") == 3);
+       ok1(*stringmap_lookup(map, "one") == 1);
+       ok1(*stringmap_lookup(map, "four") == 4);
+       ok1(*stringmap_lookup(map, "two") == 2);
+       
+       ok1(map.t.count == 4);
+       
+       stringmap_free(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(struct block_pool *bp) {
+       size_t len = random() % 100;
+       char *str = block_pool_alloc(bp, 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 {
+       const 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 (i>entries) {
+                       const char *last = i[-1].str;
+                       if (!strcmp(last, i->str)) {
+                               do 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 int test_stringmap(size_t count, FILE *out) {
+       stringmap(char*) map = stringmap_new(NULL);
+       
+       #define print(tag, fmt, ...) do { \
+                       if (out) \
+                               fprintf(out, tag fmt "\n", ##__VA_ARGS__); \
+               } while(0)
+       #define err(...) do { \
+                       print("error: ", __VA_ARGS__); \
+                       goto fail; \
+               } while(0)
+       #define debug(...) print("debug: ", __VA_ARGS__)
+       #define msg(...) print("info: ", __VA_ARGS__)
+       
+       struct block_pool *bp = block_pool_new(NULL);
+       struct test_entry *entries = block_pool_alloc(bp, sizeof(*entries) * count);
+       struct test_entry *i, *e = entries+count;
+       char *value_base = block_pool_alloc(bp, 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(bp);
+               size_t same_count = (random()%5 ? random()%3 : random()%10) + 1;
+               
+               for (;same_count-- && i<e; i++) {
+                       i->str = str;
+                       i->value = value;
+               }
+       }
+       
+       cull_duplicates(entries, &count);
+       e = entries+count;
+       scramble(entries, count, sizeof(*entries));
+       
+       msg("Inserting/looking up %zu entries...", count);
+       
+       for (i=entries; i<e; i++) {
+               char **node;
+               
+               debug("Looking up %s", i->str);
+               
+               node = stringmap_lookup(map, i->str);
+               
+               if (!node) {
+                       if (*i->value)
+                               err("Previously inserted entry not found");
+                       
+                       debug("Not found; entering");
+                       
+                       node = stringmap_enter(map, i->str);
+                       if (!node || strcmp(i->str, map.last->str))
+                               err("Node not properly entered");
+                       *node = i->value;
+                       *i->value = 1; //mark that the entry is entered
+                       
+                       unique_count++;
+               } else {
+                       if (strcmp(i->value, map.last->value))
+                               err("lookup returned incorrect string");
+                       if (i->value != *node)
+                               err("lookup returned incorrect value");
+                       if (!**node)
+                               err("lookup returned bogus value");
+               }
+       }
+       
+       if (map.t.count != unique_count)
+               err("Map has incorrect count");
+       
+       printf("stringmap test passed after %zu inserts, %zu lookups (%zu total operations)\n", unique_count, (i-entries)-unique_count, i-entries);
+       
+       block_pool_free(bp);
+       stringmap_free(map);
+       return 1;
+
+fail:
+       printf("stringmap test failed after %zu inserts, %zu lookups (%zu total operations)\n", unique_count, (i-entries)-unique_count, i-entries);
+       
+       block_pool_free(bp);
+       stringmap_free(map);
+       return 0;
+       
+       #undef print
+       #undef err
+       #undef debug
+       #undef msg
+}
+
+int main(void)
+{
+       plan_tests(10);
+       
+       test_trivial();
+       ok1(test_stringmap(10000, NULL));
+       
+       return exit_status();
+}