[#855] Refactor PersonBuilder constructor to use TypicalPersons as argument (#889)

When creating a Person for testing, some tests specify almost all of
the fields of an existing TypicalPerson, with only a slight variation
in one or two fields. For example, the code below builds on top of
TypicalPerson#AMY with only changes to address and tags:

    toAdd = new PersonBuilder().withName(VALID_NAME_AMY).withPhone(VALID_PHONE_AMY)
            .withEmail(VALID_EMAIL_AMY).withAddress(VALID_ADDRESS_BOB)
            .withTags(VALID_TAG_FRIEND).build();

This is long-winded and unnecessary, as PersonBuilder allows us to start
from a ready-made Person, and modify as necessary. For example, the code
above can be refactored to:

    toAdd = new PersonBuilder(AMY).withAddress(VALID_ADDRESS_BOB).build();

Let's refactor the calls to PersonBuilder to make them more concise.

Author: yamgent

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

@@ -18,18 +18,16 @@
 import static seedu.address.logic.commands.CommandTestUtil.PREAMBLE_WHITESPACE;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_FRIEND;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_HUSBAND;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_ADDRESS_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_ADDRESS_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_NAME_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_NAME_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_FRIEND;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_HUSBAND;
 import static seedu.address.logic.parser.CommandParserTestUtil.assertParseFailure;
 import static seedu.address.logic.parser.CommandParserTestUtil.assertParseSuccess;
+import static seedu.address.testutil.TypicalPersons.AMY;
+import static seedu.address.testutil.TypicalPersons.BOB;
 
 import org.junit.Test;
 
@@ -47,8 +45,7 @@ public class AddCommandParserTest {
 
     @Test
     public void parse_allFieldsPresent_success() {
-        Person expectedPerson = new PersonBuilder().withName(VALID_NAME_BOB).withPhone(VALID_PHONE_BOB)
-                .withEmail(VALID_EMAIL_BOB).withAddress(VALID_ADDRESS_BOB).withTags(VALID_TAG_FRIEND).build();
+        Person expectedPerson = new PersonBuilder(BOB).withTags(VALID_TAG_FRIEND).build();
 
         // whitespace only preamble
         assertParseSuccess(parser, PREAMBLE_WHITESPACE + NAME_DESC_BOB + PHONE_DESC_BOB + EMAIL_DESC_BOB
@@ -71,18 +68,16 @@ public void parse_allFieldsPresent_success() {
                 + ADDRESS_DESC_BOB + TAG_DESC_FRIEND, new AddCommand(expectedPerson));
 
         // multiple tags - all accepted
-        Person expectedPersonMultipleTags = new PersonBuilder().withName(VALID_NAME_BOB).withPhone(VALID_PHONE_BOB)
-                .withEmail(VALID_EMAIL_BOB).withAddress(VALID_ADDRESS_BOB)
-                .withTags(VALID_TAG_FRIEND, VALID_TAG_HUSBAND).build();
+        Person expectedPersonMultipleTags = new PersonBuilder(BOB).withTags(VALID_TAG_FRIEND, VALID_TAG_HUSBAND)
+                .build();
         assertParseSuccess(parser, NAME_DESC_BOB + PHONE_DESC_BOB + EMAIL_DESC_BOB + ADDRESS_DESC_BOB
                 + TAG_DESC_HUSBAND + TAG_DESC_FRIEND, new AddCommand(expectedPersonMultipleTags));
     }
 
     @Test
     public void parse_optionalFieldsMissing_success() {
         // zero tags
-        Person expectedPerson = new PersonBuilder().withName(VALID_NAME_AMY).withPhone(VALID_PHONE_AMY)
-                .withEmail(VALID_EMAIL_AMY).withAddress(VALID_ADDRESS_AMY).withTags().build();
+        Person expectedPerson = new PersonBuilder(AMY).withTags().build();
         assertParseSuccess(parser, NAME_DESC_AMY + PHONE_DESC_AMY + EMAIL_DESC_AMY + ADDRESS_DESC_AMY,
                 new AddCommand(expectedPerson));
     }

src/test/java/systemtests/AddCommandSystemTest.java

@@ -16,14 +16,10 @@
 import static seedu.address.logic.commands.CommandTestUtil.PHONE_DESC_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_FRIEND;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_HUSBAND;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_ADDRESS_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_ADDRESS_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_NAME_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_BOB;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_FRIEND;
 import static seedu.address.logic.parser.CliSyntax.PREFIX_TAG;
 import static seedu.address.testutil.TypicalPersons.ALICE;
 import static seedu.address.testutil.TypicalPersons.AMY;
@@ -79,8 +75,7 @@ public void add() throws Exception {
         assertCommandSuccess(command, model, expectedResultMessage);
 
         /* Case: add a person with all fields same as another person in the address book except name -> added */
-        toAdd = new PersonBuilder().withName(VALID_NAME_BOB).withPhone(VALID_PHONE_AMY).withEmail(VALID_EMAIL_AMY)
-                .withAddress(VALID_ADDRESS_AMY).withTags(VALID_TAG_FRIEND).build();
+        toAdd = new PersonBuilder(AMY).withName(VALID_NAME_BOB).build();
         command = AddCommand.COMMAND_WORD + NAME_DESC_BOB + PHONE_DESC_AMY + EMAIL_DESC_AMY + ADDRESS_DESC_AMY
                 + TAG_DESC_FRIEND;
         assertCommandSuccess(command, toAdd);

src/test/java/systemtests/EditCommandSystemTest.java

@@ -18,13 +18,10 @@
 import static seedu.address.logic.commands.CommandTestUtil.PHONE_DESC_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_FRIEND;
 import static seedu.address.logic.commands.CommandTestUtil.TAG_DESC_HUSBAND;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_ADDRESS_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_AMY;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_EMAIL_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_NAME_AMY;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_NAME_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_AMY;
-import static seedu.address.logic.commands.CommandTestUtil.VALID_PHONE_BOB;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_HUSBAND;
 import static seedu.address.logic.parser.CliSyntax.PREFIX_TAG;
 import static seedu.address.model.Model.PREDICATE_SHOW_ALL_PERSONS;
@@ -67,8 +64,7 @@ public void edit() throws Exception {
         Index index = INDEX_FIRST_PERSON;
         String command = " " + EditCommand.COMMAND_WORD + "  " + index.getOneBased() + "  " + NAME_DESC_BOB + "  "
                 + PHONE_DESC_BOB + " " + EMAIL_DESC_BOB + "  " + ADDRESS_DESC_BOB + " " + TAG_DESC_HUSBAND + " ";
-        Person editedPerson = new PersonBuilder().withName(VALID_NAME_BOB).withPhone(VALID_PHONE_BOB)
-                .withEmail(VALID_EMAIL_BOB).withAddress(VALID_ADDRESS_BOB).withTags(VALID_TAG_HUSBAND).build();
+        Person editedPerson = new PersonBuilder(BOB).withTags(VALID_TAG_HUSBAND).build();
         assertCommandSuccess(command, index, editedPerson);
 
         /* Case: undo editing the last person in the list -> last person restored */