Add Test case for EggDropping (#3687)

src/main/java/com/thealgorithms/dynamicprogramming/EggDropping.java

@@ -6,7 +6,7 @@ package com.thealgorithms.dynamicprogramming;
 public class EggDropping {
 
     // min trials with n eggs and m floors
-    private static int minTrials(int n, int m) {
+    public static int minTrials(int n, int m) {
         int[][] eggFloor = new int[n + 1][m + 1];
         int result, x;
 

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

@@ -0,0 +1,28 @@
+package com.thealgorithms.dynamicprogramming;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class EggDroppingTest {
+
+    @Test
+    void hasMultipleEggSingleFloor(){
+        assertEquals(1,EggDropping.minTrials(3,1));
+    }
+
+    @Test
+    void hasSingleEggSingleFloor(){
+        assertEquals(1,EggDropping.minTrials(1,1));
+    }
+
+    @Test
+    void hasSingleEggMultipleFloor(){
+        assertEquals(3,EggDropping.minTrials(1,3));
+    }
+
+    @Test
+    void hasMultipleEggMultipleFloor(){
+        assertEquals(7,EggDropping.minTrials(100,101));
+    }
+}