diff --git a/tests/src/string/main.c b/tests/src/string/main.c
index 8b90e66..141e0cc 100644
--- a/tests/src/string/main.c
+++ b/tests/src/string/main.c
@@ -3,6 +3,29 @@
 
 #include "plug.h"
 
+static void string_concat_random(vtype_string* x, unsigned int n) {
+    char* v;
+
+    if (random_boolean()) {
+        v = random_utf8_cstring(n);
+    } else v = random_ascii_cstring(n);
+
+    string_concat(x, v);
+    free(v);
+}
+
+static void string_replace_random(vtype_string* x, unsigned int n) {
+    char* v;
+
+    if (random_boolean()) {
+        v = random_utf8_cstring(n);
+    } else v = random_ascii_cstring(n);
+
+    string_replace(x, x, v, -1);
+
+    free(v);
+}
+
 static void string_print_compare(const vtype_string* s0, const vtype_string* s1) {
     int c = string_compare(s0, s1);
     char* m;
diff --git a/tests/src/string/plug.h b/tests/src/string/plug.h
index d0fc750..472bbf1 100644
--- a/tests/src/string/plug.h
+++ b/tests/src/string/plug.h
@@ -68,26 +68,3 @@ static vtype_string string_random(unsigned int n) {
 
     return x;
 }
-
-static void string_concat_random(vtype_string* x, unsigned int n) {
-    char* v;
-
-    if (random_boolean()) {
-        v = random_utf8_cstring(n);
-    } else v = random_ascii_cstring(n);
-
-    string_concat(x, v);
-    free(v);
-}
-
-static void string_replace_random(vtype_string* x, unsigned int n) {
-    char* v;
-
-    if (random_boolean()) {
-        v = random_utf8_cstring(n);
-    } else v = random_ascii_cstring(n);
-
-    string_replace(x, x, v, -1);
-
-    free(v);
-}
diff --git a/tests/src/string/trim.c b/tests/src/string/trim.c
index 4111e50..c5329d8 100644
--- a/tests/src/string/trim.c
+++ b/tests/src/string/trim.c
@@ -12,17 +12,21 @@ int main(int argc, char** argv) {
     x = string_random(12);
 
     string_align_center(&x, 30, 0);
+    string_info(&x);
     string_print(&x, 0);
 
     string_trim_spaces(&x);
-    string_print(&x, 0);
-
+    string_info(&x);
+    string_print(&x, "trimmed");
 
+    put_separator();
     string_align_center(&x, 30, c);
+    string_info(&x);
     string_print(&x, 0);
 
     string_trim(&x, c);
-    string_print(&x, 0);
+    string_info(&x);
+    string_print(&x, "trimmed");
 
 
     string_free(&x);