test: unit test for iso 8601 formatter

eno-core/src/test/java/fr/insee/eno/core/i18n/date/Iso8601FormatterTest.java

@@ -0,0 +1,89 @@
+package fr.insee.eno.core.i18n.date;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class Iso8601FormatterTest {
+
+    private final Iso8601Formatter formatter = new Iso8601Formatter();
+
+    @Test
+    void convertYearMontDate_validDate_shouldReturnFormattedDate() {
+        // Arrange
+        String inputDate = "2024-12";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDate(inputDate);
+
+        // Assert
+        assertTrue(result.isValid());
+        assertEquals("2024-12", result.value());
+    }
+
+    @Test
+    void convertYearMontDate_invalidDate_shouldReturnFailure() {
+        // Arrange
+        String inputDate = "2024/12";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDate(inputDate);
+
+        // Assert
+        assertFalse(result.isValid());
+        assertTrue(result.errorMessage().contains("YYYY-MM"));
+    }
+
+    @Test
+    void convertYearMontDate_emptyString_shouldReturnFailure() {
+        // Arrange
+        String inputDate = "";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDate(inputDate);
+
+        // Assert
+        assertFalse(result.isValid());
+        assertTrue(result.errorMessage().contains("YYYY-MM"));
+    }
+
+    @Test
+    void convertYearMontDayDate_validDate_shouldReturnFormattedDate() {
+        // Arrange
+        String inputDate = "2024-12-17";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDayDate(inputDate);
+
+        // Assert
+        assertTrue(result.isValid());
+        assertEquals("2024-12-17", result.value());
+    }
+
+    @Test
+    void convertYearMontDayDate_invalidDate_shouldReturnFailure() {
+        // Arrange
+        String inputDate = "2024/12/17";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDayDate(inputDate);
+
+        // Assert
+        assertFalse(result.isValid());
+        assertTrue(result.errorMessage().contains("YYYY-MM-DD"));
+    }
+
+    @Test
+    void convertYearMontDayDate_emptyString_shouldReturnFailure() {
+        // Arrange
+        String inputDate = "";
+
+        // Act
+        DateFormatter.Result result = formatter.convertYearMontDayDate(inputDate);
+
+        // Assert
+        assertFalse(result.isValid());
+        assertTrue(result.errorMessage().contains("YYYY-MM-DD"));
+    }
+
+}