diff --git a/fx.collections/test/numbers.c b/fx.collections/test/numbers.c
index c26b655..6b57f3b 100644
--- a/fx.collections/test/numbers.c
+++ b/fx.collections/test/numbers.c
@@ -1,12 +1,7 @@
-#include <fx/double.h>
+#include <fx/float.h>
 #include <stdio.h>
 
 int main(void)
 {
-	fx_double *d = fx_double_create(6.8);
-
-	printf("double=%lf\n", fx_double_get_value(d));
-	fx_double_unref(d);
-
 	return 0;
 }
diff --git a/fx.collections/test/simple.c b/fx.collections/test/simple.c
index e001aa5..21bc4b0 100644
--- a/fx.collections/test/simple.c
+++ b/fx.collections/test/simple.c
@@ -2,9 +2,9 @@
 
 int main(void)
 {
-	fx_string *string = FX_CSTR("Hello, world!");
+	fx_string *string = fx_string_create_from_cstr("Hello, world!");
 	printf("string object = ");
-	fx_object_to_string(string, fx_stdout);
+	fx_object_to_string(string, fx_stdout, NULL);
 	printf("\n");
 	fx_string_unref(string);
 	return 0;