From b8e373a64b0d2e3b96f0264d60479bd874a6adff Mon Sep 17 00:00:00 2001
From: forge-bot <bot@forge.local>
Date: Sun, 12 Jul 2026 00:42:45 +0000
Subject: [PATCH] =?UTF-8?q?BAIS=20payments=20=EB=A9=80=ED=8B=B0=EB=AA=A8?=
 =?UTF-8?q?=EB=93=88=20=EC=B5=9C=EC=86=8C=20=EA=B5=AC=ED=98=84=20(BAIS-MAV?=
 =?UTF-8?q?EN-1783816946)?=
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---
 .../payments/PaymentReferenceServiceTest.java | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 services/payments/src/test/java/com/klaro/bais/payments/PaymentReferenceServiceTest.java

diff --git a/services/payments/src/test/java/com/klaro/bais/payments/PaymentReferenceServiceTest.java b/services/payments/src/test/java/com/klaro/bais/payments/PaymentReferenceServiceTest.java
new file mode 100644
index 0000000..a969e5f
--- /dev/null
+++ b/services/payments/src/test/java/com/klaro/bais/payments/PaymentReferenceServiceTest.java
@@ -0,0 +1,29 @@
+package com.klaro.bais.payments;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class PaymentReferenceServiceTest {
+
+    private final PaymentReferenceService service = new PaymentReferenceService();
+
+    @Test
+    void testNormalize_Null() {
+        assertEquals("", service.normalize(null));
+    }
+
+    @Test
+    void testNormalize_Empty() {
+        assertEquals("", service.normalize(""));
+    }
+
+    @Test
+    void testNormalize_Whitespace() {
+        assertEquals("", service.normalize("   "));
+    }
+
+    @Test
+    void testNormalize_ValidString() {
+        assertEquals("valid", service.normalize(" valid "));
+    }
+}