fix: placement and tests

src/test/java/BonusTestDates.java

@@ -0,0 +1,47 @@
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+public class BonusTestDates {
+    static BonusExercises ex;
+
+    @BeforeAll
+    static void setUp() {
+        ex = new BonusExercises();
+    }
+
+    @Test
+    void testDates0() {
+        String input = "Today is 12/09/2023.";
+        String expected = "12/09/2023";
+        assertEquals(expected, ex.findDate(input));
+    }
+
+    @Test
+    void testDates1() {
+        String input = "Meeting: 2024-07-15 at noon.";
+        String expected = "2024-07-15";
+        assertEquals(expected, ex.findDate(input));
+    }
+
+    @Test
+    void testDates2() {
+        String input = "No date here.";
+        assertNull(ex.findDate(input));
+    }
+
+    @Test
+    void testDates3() {
+        String input = "Release date will be 2025/01/01 (hopefully) at midnight";
+        String expected = "2025/01/01";
+        assertEquals(expected, ex.findDate(input));
+    }
+
+    @Test
+    void testDates4() {
+        String input = "Meet me at 45/12/2023.";
+        assertNull(ex.findDate(input));
+    }
+}