refactoring: change_direction

src/main/c/global.h

@@ -3,6 +3,6 @@
 
 typedef enum {
     N, E, S, W
-} Dir;
+} Direction;
 
 #endif

src/main/c/labyrinth.c

@@ -5,7 +5,7 @@
 #include "stdio.h"
 #include "stdlib.h"
 
-void change_direction(Dir *direction){
+void turn_direction_right(Direction *direction){
     switch (*direction) {
         case N:
             *direction = E;

src/main/c/labyrinth.h

@@ -3,6 +3,6 @@
 
 #include "global.h"
 
-void change_direction(Dir *direction);
+void turn_direction_right(Direction *direction);
 
 #endif // TEST_H

src/test/c/test_labyrinth.c

@@ -15,11 +15,11 @@ void tearDown(void)
 void test_change_direction_from_N_expected_E(void)
 {
     /* arrange */
-    Dir actual = N;
-    Dir expected = E;
+    Direction actual = N;
+    Direction expected = E;
 
     /* act */
-    change_direction(&actual);
+    turn_direction_right(&actual);
 
     /* assert */
 	TEST_ASSERT_TRUE(expected == actual);