diff --git a/app/proprietary/src/test/java/stirling/software/proprietary/security/model/exception/NoProviderFoundExceptionTest.java b/app/proprietary/src/test/java/stirling/software/proprietary/security/model/exception/NoProviderFoundExceptionTest.java
new file mode 100644
index 000000000..8b2dba756
--- /dev/null
+++ b/app/proprietary/src/test/java/stirling/software/proprietary/security/model/exception/NoProviderFoundExceptionTest.java
@@ -0,0 +1,33 @@
+package stirling.software.proprietary.security.model.exception;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+class NoProviderFoundExceptionTest {
+
+    @Test
+    void constructor_setsMessage_withoutCause() {
+        NoProviderFoundException ex = new NoProviderFoundException("no provider");
+        assertEquals("no provider", ex.getMessage());
+        assertNull(ex.getCause(), "Cause should be null for single-arg constructor");
+    }
+
+    @Test
+    void constructor_setsMessage_andCause() {
+        Throwable cause = new IllegalStateException("root");
+        NoProviderFoundException ex = new NoProviderFoundException("missing", cause);
+
+        assertEquals("missing", ex.getMessage());
+        assertSame(cause, ex.getCause());
+    }
+
+    @Test
+    void canBeThrownAndCaught_checkedException() {
+        try {
+            throw new NoProviderFoundException("boom");
+        } catch (NoProviderFoundException ex) {
+            assertEquals("boom", ex.getMessage());
+        }
+    }
+}