fixed Homebox typo

backend/src/test/java/com/vaessl/app/connection/HomeboxConnectionProviderTest.java

@@ -0,0 +1,27 @@
+package com.vaessl.app.connection;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+import com.vaessl.app.dto.ConnectionRequest;
+import com.vaessl.app.exception.EmptyCredentialsException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static com.vaessl.app.connection.Mockdata.*;
+
+class HomeboxConnectionProviderTest {
+
+    private final HomeboxConnectionProvider provider = new HomeboxConnectionProvider(null, null);
+
+    @Test
+    void checkCredentials_ShouldThrowException_WhenFieldsAreMissing() {
+        ConnectionRequest request = new ConnectionRequest(MOCK_URL, "HOMEBOX", null, null, false);
+
+        EmptyCredentialsException exception = assertThrows(EmptyCredentialsException.class, () -> {
+            provider.checkCredentials(request);
+        });
+
+        assertThat(exception.getMissingFields()).containsExactly("username", "password");
+    }
+}