[W5][T09-3] Yow Ren Jie

docs/UserGuide.adoc

@@ -156,6 +156,11 @@ Views all details of the 1st person in the results of the `find` command.
 Clears all entries from the address book. +
 Format: `clear`
 
+== Prints a goodbye message : `goodbye`
+
+Prints message "goodbye world"
+Format: `goodbye`
+
 == Exiting the program : `exit`
 
 Exits the program. +

src/seedu/addressbook/commands/GoodbyeCommand.java

@@ -0,0 +1,20 @@
+package seedu.addressbook.commands;
+
+
+/**
+ * print goodbye message.
+ */
+public class GoodbyeCommand extends Command {
+
+    public static final String COMMAND_WORD = "goodbye";
+
+    public static final String MESSAGE_USAGE = COMMAND_WORD + ": prints goodbye message.\n"
+            + "Example: " + COMMAND_WORD;
+
+    @Override
+    public CommandResult execute() {
+        return new CommandResult(
+                "Goodbye World"
+        );
+    }
+}

src/seedu/addressbook/commands/HelpCommand.java

@@ -22,7 +22,8 @@ public CommandResult execute() {
                 + "\n" + ViewCommand.MESSAGE_USAGE
                 + "\n" + ViewAllCommand.MESSAGE_USAGE
                 + "\n" + HelpCommand.MESSAGE_USAGE
-                + "\n" + ExitCommand.MESSAGE_USAGE
+                        + "\n" + GoodbyeCommand.MESSAGE_USAGE
+                        + "\n" + ExitCommand.MESSAGE_USAGE
         );
     }
 }

src/seedu/addressbook/parser/Parser.java

@@ -11,17 +11,7 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import seedu.addressbook.commands.AddCommand;
-import seedu.addressbook.commands.ClearCommand;
-import seedu.addressbook.commands.Command;
-import seedu.addressbook.commands.DeleteCommand;
-import seedu.addressbook.commands.ExitCommand;
-import seedu.addressbook.commands.FindCommand;
-import seedu.addressbook.commands.HelpCommand;
-import seedu.addressbook.commands.IncorrectCommand;
-import seedu.addressbook.commands.ListCommand;
-import seedu.addressbook.commands.ViewAllCommand;
-import seedu.addressbook.commands.ViewCommand;
+import seedu.addressbook.commands.*;
 import seedu.addressbook.data.exception.IllegalValueException;
 
 /**
@@ -73,6 +63,9 @@ public Command parseCommand(String userInput) {
 
         switch (commandWord) {
 
+            case GoodbyeCommand.COMMAND_WORD:
+                return new GoodbyeCommand();
+
         case AddCommand.COMMAND_WORD:
             return prepareAdd(arguments);
 

test/expected.txt

@@ -27,6 +27,8 @@
 || Example: viewall 1
 || help: Shows program usage instructions.
 || Example: help
+|| goodbye: prints goodbye message.
+|| Example: goodbye
 || exit: Exits the program.
 || Example: exit
 || ===================================================

test/java/seedu/addressbook/commands/AddCommandTest.java

@@ -28,7 +28,7 @@ public class AddCommandTest {
     private static final List<ReadOnlyPerson> EMPTY_PERSON_LIST = Collections.emptyList();
     private static final Set<String> EMPTY_STRING_SET = Collections.emptySet();
 
-    @Test
+    @org.junit.jupiter.api.Test
     public void addCommand_invalidName_throwsException() {
         final String[] invalidNames = { "", " ", "[]\\[;]" };
         for (String name : invalidNames) {

test/java/seedu/addressbook/parser/ParserTest.java

@@ -12,6 +12,7 @@
 import org.junit.Before;
 import org.junit.Test;
 
+import seedu.addressbook.commands.GoodbyeCommand;
 import seedu.addressbook.commands.AddCommand;
 import seedu.addressbook.commands.ClearCommand;
 import seedu.addressbook.commands.Command;
@@ -63,6 +64,12 @@ public void parse_unknownCommandWord_returnsHelp() {
      * Tests for 0-argument commands =======================================================================
      */
 
+    @Test
+    public void parse_goodbyeCommand_parsedCorrectly() {
+        final String input = "goodbye";
+        parseAndAssertCommandType(input, GoodbyeCommand.class);
+    }
+
     @Test
     public void parse_helpCommand_parsedCorrectly() {
         final String input = "help";