test: EditDistanceTest (#5397)

src/test/java/com/thealgorithms/dynamicprogramming/EditDistanceTest.java

@@ -0,0 +1,15 @@
+package com.thealgorithms.dynamicprogramming;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+public class EditDistanceTest {
+
+    @ParameterizedTest
+    @CsvSource({"'', '', 0", "'abc', '', 3", "'', 'abcd', 4", "'same', 'same', 0", "'a', 'b', 1", "'abc', 'abd', 1"})
+    void testMinDistance(String str1, String str2, int expected) {
+        assertEquals(expected, EditDistance.minDistance(str1, str2));
+    }
+}