prod/test: creates spellHeal function and test

src/c/spell.c

@@ -7,4 +7,10 @@
 int spellFireball(Character *character) {
     int damage = 10 + (getCharacterIntelligence(character) / 2);
     return damage;
+}
+
+
+int spellHeal(Character *character) {
+    int heal = 10 + (getCharacterIntelligence(character) / 3);
+    return heal;
 }

src/c/spell.h

@@ -1,6 +1,9 @@
 #ifndef SPELL_H
 #define SPELL_H
 
+#include "character.h"
+
 int spellFireball(Character *character);
+int spellHeal(Character *character);
 
 #endif

test/c/test_spell.c

@@ -35,4 +35,10 @@ void test_spellFireball(void)
     TEST_ASSERT_EQUAL_INT(10,spellFireball(&testCharacter));
     TEST_ASSERT_EQUAL_INT(13,spellFireball(&testCharacter2));
 }
+
+void test_spellHeal(void)
+{
+    TEST_ASSERT_EQUAL_INT(10,spellHeal(&testCharacter));
+    TEST_ASSERT_EQUAL_INT(12,spellHeal(&testCharacter2));
+}
 #endif // TEST