UpdatedCertifiedYearOfBirthTest

src/test/java/scot/carricksoftware/grants/services/certificates/birthcertificates/UpdateCertifiedYearOfBirthTest.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2025.  Andrew Grant Carrick Software. All rights reserved
+ *
+ */
+
+package scot.carricksoftware.grants.services.certificates.birthcertificates;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import scot.carricksoftware.grants.commands.certificates.birthcertificates.BirthCertificateCommand;
+import scot.carricksoftware.grants.converters.people.PersonConverter;
+import scot.carricksoftware.grants.services.people.PersonService;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.verifyNoInteractions;
+
+@ExtendWith(MockitoExtension.class)
+class UpdateCertifiedYearOfBirthTest {
+
+    private UpdateCertifiedYearOfBirth updateCertifiedYearOfBirth;
+
+    @Mock
+    private PersonService personServiceMock;
+
+    @Mock
+    private PersonConverter personConverterMock;
+
+    @Mock
+    private BirthCertificateCommand birthCertificateCommandMock;
+
+    @BeforeEach
+    void setUp() {
+        updateCertifiedYearOfBirth = new UpdateCertifiedYearOfBirthImpl(personConverterMock, personServiceMock);
+    }
+
+    @Test
+    void nullPersonTest() {
+        updateCertifiedYearOfBirth.updateCertifiedYearOfBirth(birthCertificateCommandMock);
+        verifyNoInteractions(personConverterMock);
+    }
+
+    @Test()
+    void nullPersonCommandTest() {
+        assertThrows(NullPointerException.class, () -> updateCertifiedYearOfBirth.updateCertifiedYearOfBirth(null));
+    }
+}