feat: add unit test

src/test/java/fr/insee/rmes/utils/DateUtilsTest.java

@@ -1,22 +1,65 @@
 package fr.insee.rmes.utils;
 
-import fr.insee.rmes.exceptions.RmesException;
 import org.junit.jupiter.api.Test;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.time.LocalDateTime;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 class DateUtilsTest {
 
 	@Test
-	void should_return_date_if_good_format() {
-		String date = DateUtils.getDate("2018-12-17");
-		assertEquals("2018-12-17", date);
+	void getCurrentDate_ShouldReturnNonNullValue() {
+		String currentDate = DateUtils.getCurrentDate();
+		assertNotNull(currentDate);
+	}
+
+	@Test
+	void parseDateTime_ShouldParseValidZonedDateTime() {
+		String dateStr = "2024-12-09T12:30:45+01:00";
+		LocalDateTime result = DateUtils.parseDateTime(dateStr);
+		assertEquals(LocalDateTime.of(2024, 12, 9, 12, 30, 45), result);
+	}
+
+	@Test
+	void parseDateTime_ShouldParseValidDateWithoutTime() {
+		String dateStr = "2024-12-09";
+		LocalDateTime result = DateUtils.parseDateTime(dateStr);
+		assertEquals(LocalDateTime.of(2024, 12, 9, 0, 0), result);
+	}
+
+	@Test
+	void parseDateTime_ShouldReturnNullForInvalidDate() {
+		String invalidDate = "invalid-date";
+		assertThrows(Exception.class, () -> DateUtils.parseDateTime(invalidDate));
+	}
+
+	@Test
+	void getDate_ShouldConvertToISODateFormat() {
+		String isoDateTime = "2024-12-09T15:45:30";
+		String result = DateUtils.getDate(isoDateTime);
+		assertEquals("2024-12-09", result);
+	}
+
+	@Test
+	void getDate_ShouldReturnOriginalForInvalidDate() {
+		String invalidDate = "invalid-date";
+		String result = DateUtils.getDate(invalidDate);
+		assertEquals(invalidDate, result);
+	}
+
+	@Test
+	void toDate_ShouldFormatToDDMMYYYY() {
+		String dateTime = "2024-12-09T15:45:30";
+		String result = DateUtils.toDate(dateTime);
+		assertEquals("09/12/2024", result);
 	}
 
 	@Test
-	void should_return_date_if_bad_format() {
-		String date = DateUtils.getDate("12-17");
-		assertEquals("12-17", date);
+	void toDate_ShouldReturnOriginalStringForShortString() {
+		String shortString = "2024";
+		String result = DateUtils.toDate(shortString);
+		assertEquals(shortString, result);
 	}
 
 }