ValidateNonNegativeIntegerTest

src/test/java/scot/carricksoftware/grants/validators/helpers/ValidateNonNegativeIntegerTest.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2025.  Andrew Grant Carrick Software. All rights reserved
+ *
+ */
+
+package scot.carricksoftware.grants.validators.helpers;
+
+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 org.springframework.validation.BindingResult;
+
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
+
+@ExtendWith(MockitoExtension.class)
+class ValidateNonNegativeIntegerTest {
+
+    private ValidateTypes validateTypes;
+
+    private String field;
+    private String nullMessage;
+    private String formatMessage;
+
+    @Mock
+    private BindingResult bindingResultMock;
+
+    @BeforeEach
+    void setUp() {
+        validateTypes = new ValidateTypesImpl();
+        field = "field";
+        nullMessage = "nullMessage";
+        formatMessage = "formatMessage";
+    }
+
+    @Test
+    void nullTest() {
+        validateTypes.validateNonNegativeInteger(null, field, nullMessage, formatMessage, bindingResultMock);
+        verify(bindingResultMock).rejectValue(field, "", null, nullMessage);
+    }
+
+    @Test
+    void emptyTest() {
+        validateTypes.validateNonNegativeInteger("", field, nullMessage, formatMessage, bindingResultMock);
+        verify(bindingResultMock).rejectValue(field, "", null, nullMessage);
+    }
+
+    @Test
+    void negativeTest() {
+        validateTypes.validateNonNegativeInteger("-1", field, nullMessage, formatMessage, bindingResultMock);
+        verify(bindingResultMock).rejectValue(field, "", null, formatMessage);
+    }
+
+    @Test
+    void zeroTest() {
+        validateTypes.validateNonNegativeInteger("0", field, nullMessage, formatMessage, bindingResultMock);
+        verifyNoInteractions(bindingResultMock);
+    }
+
+    @Test
+    void positiveTest() {
+        validateTypes.validateNonNegativeInteger("1", field, nullMessage, formatMessage, bindingResultMock);
+        verifyNoInteractions(bindingResultMock);
+    }
+
+    @Test
+    void invalidFormatTest() {
+        validateTypes.validateNonNegativeInteger("z", field, nullMessage, formatMessage, bindingResultMock);
+        verify(bindingResultMock).rejectValue(field, "", null, formatMessage);
+    }
+
+
+
+}