diff --git a/src/test/kotlin/entity/healthcareuser/PatientIDTest.kt b/src/test/kotlin/entity/healthcareuser/PatientIDTest.kt
new file mode 100644
index 0000000..a82c8d0
--- /dev/null
+++ b/src/test/kotlin/entity/healthcareuser/PatientIDTest.kt
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023. Smart Operating Block
+ *
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+
+package entity.healthcareuser
+
+import io.kotest.assertions.throwables.shouldThrow
+import io.kotest.core.spec.style.StringSpec
+
+class PatientIDTest : StringSpec({
+    "patient id should not be empty" {
+        shouldThrow<IllegalArgumentException> { PatientID("") }
+    }
+})