Merge pull request nus-cs2103-AY2021S1#82 from jerrylchong/branch-Clear-Contacts

Edit ClearCommand to use 'contact clear' command and add back parseCommand clear test

Author: EkamSinghPandher

src/main/java/seedu/address/logic/commands/ClearCommand.java

@@ -10,8 +10,8 @@
  */
 public class ClearCommand extends Command {
 
-    public static final String COMMAND_WORD = "clear";
-    public static final String MESSAGE_SUCCESS = "Address book has been cleared!";
+    public static final String COMMAND_WORD = "contact clear";
+    public static final String MESSAGE_SUCCESS = "All contacts have been cleared!";
 
 
     @Override

src/test/java/seedu/address/logic/parser/AddressBookParserTest.java

@@ -9,6 +9,7 @@
 import org.junit.jupiter.api.Test;
 
 import seedu.address.logic.commands.AddCommand;
+import seedu.address.logic.commands.ClearCommand;
 import seedu.address.logic.commands.ExitCommand;
 import seedu.address.logic.commands.HelpCommand;
 import seedu.address.logic.parser.exceptions.ParseException;
@@ -27,11 +28,11 @@ public void parseCommand_add() throws Exception {
         assertEquals(new AddCommand(person), command);
     }
 
-    //    @Test
-    //    public void parseCommand_clear() throws Exception {
-    //        assertTrue(parser.parseCommand(ClearCommand.COMMAND_WORD) instanceof ClearCommand);
-    //        assertTrue(parser.parseCommand(ClearCommand.COMMAND_WORD + " 3") instanceof ClearCommand);
-    //    }
+    @Test
+    public void parseCommand_clear() throws Exception {
+        assertTrue(parser.parseCommand(ClearCommand.COMMAND_WORD) instanceof ClearCommand);
+        assertTrue(parser.parseCommand(ClearCommand.COMMAND_WORD + " 3") instanceof ClearCommand);
+    }
 
     //    @Test
     //    public void parseCommand_delete() throws Exception {