Test case for Utils.formatTimer

app/src/main/java/com/amaze/filemanager/utils/Utils.java

@@ -262,7 +262,6 @@ public class Utils {
      * Formats input to plain mm:ss format
      */
     public static String formatTimer(long timer) {
-
         final long min = timer / 60;
         final long sec = timer % 60;
         return String.format(Locale.US, "%02d:%02d", min, sec);

app/src/test/java/com/amaze/filemanager/utils/UtilsTest.java

@@ -3,6 +3,7 @@ package com.amaze.filemanager.utils;
 import org.junit.Test;
 
 import static com.amaze.filemanager.utils.Utils.sanitizeInput;
+import static com.amaze.filemanager.utils.Utils.formatTimer;
 import static org.junit.Assert.*;
 
 public class UtilsTest {
@@ -17,4 +18,13 @@ public class UtilsTest {
         assertEquals("an apple",sanitizeInput("an ...apple"));  //test the removing of dots which are between two words.
         assertEquals("an apple.",sanitizeInput(";an |apple...."));  //test the removing of pipe sign and dots which are between two words. And test the fourth dot is not removed.
     }
+
+    @Test
+    public void testFormatTimer() {
+        assertEquals("10:00", formatTimer(600));
+        assertEquals("00:00", formatTimer(0));
+        assertEquals("00:45", formatTimer(45));
+        assertEquals("02:45", formatTimer(165));
+        assertEquals("30:33", formatTimer(1833));
+    }
 }