1 files changed, 123 insertions, 0 deletions
diff --git a/flow/gsl/gslglibhashtest.cpp b/flow/gsl/gslglibhashtest.cpp
new file mode 100644
index 0000000..9205c8c
--- /dev/null
+++ b/flow/gsl/gslglibhashtest.cpp
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+/* GSL Glib Hashtable test
+ * Copyright (C) 2001 Stefan Westerfeld
+ *
+ * This 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 of the License, or (at your option) any later version.
+ *
+ * This 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 this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+#include "gsldefs.h"
+#include <string.h>
+
+/* cause hashvalue collisions for the test */
+guint g_str_narrow_hash (gconstpointer key) {
+	return g_str_hash (key) & 15;
+}
+
+struct Test {
+	char *key;
+	char *value;
+	int count;
+} test[50];
+
+void print_func (gpointer key, gpointer value, gpointer user_data) {
+#if 0	 /* <- enable to get printing  of some entries */
+	g_print ("%s: %s = %s\n", user_data, key, value);
+#endif
+}
+
+void fail_func (gpointer key, gpointer value, gpointer user_data) {
+	g_error ("*this* should not have happened");
+}
+
+
+void count_func (gpointer key, gpointer value, gpointer user_data) {
+  g_assert (value != NULL && key != NULL);
+	for(int i=0;i<50;i++)
+	{
+		if(strcmp((char *)key, test[i].key) == 0)
+		{
+			g_assert(strcmp((char *)value, test[i].value) == 0);
+			test[i].count++;
+		}
+	}
+}
+
+
+int main()
+{
+	GHashTable *t = g_hash_table_new (g_str_narrow_hash, g_str_equal);
+
+	for(int i=0;i<50;i++)
+	{
+		test[i].key = g_strdup_printf ("key-%d",i);
+		test[i].value = g_strdup_printf ("value-%d",i);
+		test[i].count = 0;
+
+		g_hash_table_insert (t, test[i].key, test[i].value);
+	}
+
+	g_assert (strcmp ((char *)g_hash_table_lookup (t, "key-24"), "value-24") == 0);
+	g_hash_table_foreach(t, print_func, g_strdup("all-keys-50"));
+	g_hash_table_foreach(t, count_func, 0);
+
+	for(int i=0;i<50;i++)
+	{
+		/* each key should have been found once in the hash table now */
+		g_assert(test[i].count == 1);
+	}
+
+	for(int i=0;i<25;i++)
+	{
+		test[i].key = g_strdup_printf ("key-%d",i);
+		test[i].value = g_strdup_printf ("another-value-%d",i);
+
+		g_hash_table_insert (t, test[i].key, test[i].value);
+	}
+
+	g_assert (strcmp ((char *)g_hash_table_lookup (t, "key-24"), "another-value-24") == 0);
+	g_hash_table_foreach(t, print_func, g_strdup("all-keys-new-25-old-25"));
+	g_hash_table_foreach(t, count_func, 0);
+
+	for(int i=0;i<50;i++)
+	{
+		/* each key should have been found once (with the new value) */
+		g_assert(test[i].count == 2);
+	}
+
+	for(int i=0;i<50;i+=2)
+	{
+		/* remove even valued keys */
+		g_hash_table_remove (t, test[i].key);
+	}
+
+	g_assert (g_hash_table_lookup (t, "key-24") == 0);
+	g_hash_table_foreach(t, print_func, g_strdup("only-odd-keys-25"));
+	g_hash_table_foreach(t, count_func, 0);
+
+	for(int i=0;i<50;i++)
+	{
+		/* only odd keys should be there */
+		g_assert((test[i].count == 3 && (i & 1))
+		      || (test[i].count == 2 && !(i & 1)));
+	}
+
+	for(int i=1;i<50;i+=2)
+	{
+		/* remove odd valued keys */
+		g_hash_table_remove (t, g_strdup(test[i].key));
+	}
+
+	g_hash_table_foreach(t, fail_func, 0);
+	return 0;
+}