Added run-dictionary.c test to ciniparser

ccan/ciniparser/test/run-dictionary.c

+#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();
+}