Add simple test for placeholders

src/main/java/de/oliver/fancynpcs/tests/impl/FancyNpcsTests.java

@@ -1,6 +1,7 @@
 package de.oliver.fancynpcs.tests.impl;
 
 import de.oliver.fancynpcs.tests.FNTestClass;
+import de.oliver.fancynpcs.tests.impl.api.ChatColorHandlerTest;
 import de.oliver.fancynpcs.tests.impl.api.CreateNpcTest;
 import de.oliver.fancynpcs.tests.impl.commands.*;
 import org.bukkit.entity.Player;
@@ -19,6 +20,7 @@ public class FancyNpcsTests {
     public FancyNpcsTests() {
         // api tests
         addTest(CreateNpcTest.class);
+        addTest(ChatColorHandlerTest.class);
 
         // command tests
         addTest(CreateCMDTest.class);

src/main/java/de/oliver/fancynpcs/tests/impl/api/ChatColorHandlerTest.java

@@ -0,0 +1,32 @@
+package de.oliver.fancynpcs.tests.impl.api;
+
+import de.oliver.fancynpcs.tests.annotations.FNTest;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+import org.lushplugins.chatcolorhandler.ChatColorHandler;
+import org.lushplugins.chatcolorhandler.parsers.ParserTypes;
+
+import static de.oliver.fancynpcs.tests.Expectable.expect;
+
+public class ChatColorHandlerTest {
+
+    @FNTest(name = "Test Placeholders")
+    public void testPlaceholders(Player player) {
+        if (!isPlaceholderAPIEnabled()) {
+            return;
+        }
+
+        String input = "Player name: %player_name%";
+        String got = ChatColorHandler.translate(input, player, ParserTypes.placeholder());
+        String expected = "Player name: " + player.getName();
+
+        expect(got).toEqual(expected);
+    }
+
+    private boolean isPlaceholderAPIEnabled() {
+        Plugin placeholderAPI = Bukkit.getPluginManager().getPlugin("PlaceholderAPI");
+        return placeholderAPI != null && placeholderAPI.isEnabled();
+    }
+
+}