diff --git a/tests/Makefile.am b/tests/Makefile.am
index 8b3a270..555b867 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -21,6 +21,9 @@ check_slug_SOURCES = check_slug.c
 TESTS += check_tree
 check_tree_SOURCES = check_tree.c
 
+TESTS += check_str_array
+check_str_array_SOURCES = check_str_array.c
+
 
 if ENABLE_JSON
 TESTS += check_json
diff --git a/tests/check_str_array.c b/tests/check_str_array.c
new file mode 100644
index 0000000..911591e
--- /dev/null
+++ b/tests/check_str_array.c
@@ -0,0 +1,53 @@
+/*
+ * check_str_array.c
+ * Copyright (C) 2014 c9s <c9s@c9smba.local>
+ *
+ * Distributed under terms of the MIT license.
+ */
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <check.h>
+#include "r3.h"
+#include "r3_str.h"
+#include "zmalloc.h"
+
+START_TEST (test_str_array)
+{
+    str_array * l = str_array_create(3);
+    ck_assert(l);
+
+    ck_assert(str_array_append(l, zstrdup("abc")));
+    ck_assert( l->len == 1 );
+
+    ck_assert(str_array_append(l, zstrdup("foo") ));
+    ck_assert( l->len == 2 );
+
+    ck_assert( str_array_append(l, zstrdup("bar") ) );
+    ck_assert( l->len == 3 );
+
+    ck_assert( str_array_append(l, zstrdup("zoo") ) );
+    ck_assert( l->len == 4 );
+
+    ck_assert( str_array_resize(l, l->cap * 2) );
+    str_array_free(l);
+}
+END_TEST
+
+Suite* r3_suite (void) {
+    Suite *suite = suite_create("str_array test");
+    TCase *tcase = tcase_create("testcase");
+    tcase_add_test(tcase, test_str_array);
+    suite_add_tcase(suite, tcase);
+    return suite;
+}
+
+int main (int argc, char *argv[]) {
+    int number_failed;
+    Suite *suite = r3_suite();
+    SRunner *runner = srunner_create(suite);
+    srunner_run_all(runner, CK_NORMAL);
+    number_failed = srunner_ntests_failed(runner);
+    srunner_free(runner);
+    return number_failed;
+}
diff --git a/tests/check_tree.c b/tests/check_tree.c
index 5bb381a..47fe795 100644
--- a/tests/check_tree.c
+++ b/tests/check_tree.c
@@ -277,28 +277,6 @@ END_TEST
 
 
 
-START_TEST (test_str_array)
-{
-    str_array * l = str_array_create(3);
-    ck_assert(l);
-
-    ck_assert(str_array_append(l, zstrdup("abc")));
-    ck_assert( l->len == 1 );
-
-    ck_assert(str_array_append(l, zstrdup("foo") ));
-    ck_assert( l->len == 2 );
-
-    fail_if( FALSE == str_array_append(l, zstrdup("bar") ) );
-    fail_if( l->len != 3 );
-
-    fail_if( FALSE == str_array_append(l, zstrdup("zoo") ) );
-    fail_if( l->len != 4 );
-
-    fail_if( FALSE == str_array_resize(l, l->cap * 2) );
-
-    str_array_free(l);
-}
-END_TEST
 
 START_TEST(test_route_cmp)
 {
@@ -422,7 +400,6 @@ Suite* r3_suite (void) {
 
         TCase *tcase = tcase_create("testcase");
         tcase_add_test(tcase, test_r3_node_construct_and_free);
-        tcase_add_test(tcase, test_str_array);
         tcase_add_test(tcase, test_ltrim_slash);
         tcase_add_test(tcase, testr3_tree_insert_pathl);
         tcase_add_test(tcase, test_compile);