Add test

src/test/java/seedu/address/logic/commands/ConvertClientToLeadCommandTest.java

@@ -0,0 +1,41 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static seedu.address.logic.commands.CommandTestUtil.assertCommandSuccess;
+
+import org.junit.jupiter.api.Test;
+
+import seedu.address.model.Model;
+import seedu.address.model.ModelManager;
+import seedu.address.model.UserPrefs;
+import seedu.address.model.person.Client;
+import seedu.address.model.person.Lead;
+import seedu.address.testutil.TypicalPersons;
+
+public class ConvertClientToLeadCommandTest {
+    private Model model = new ModelManager(TypicalPersons.getTypicalAddressBook(), new UserPrefs());
+    private Model expectedModel = new ModelManager(TypicalPersons.getTypicalAddressBook(), new UserPrefs());
+
+    @Test
+    public void execute_validClientIndex_success() {
+        Client clientToConvert = TypicalPersons.getTypicalClients().get(0); // assuming you have a list of clients
+        ConvertClientToLeadCommand command = new ConvertClientToLeadCommand(clientToConvert.getIndex());
+
+        String expectedMessage = String.format(ConvertClientToLeadCommand.MESSAGE_CONVERT_SUCCESS, clientToConvert);
+        expectedModel.deletePerson(clientToConvert);
+        expectedModel.addPerson(new Lead(clientToConvert)); // Assuming a constructor for Lead is available
+
+        assertCommandSuccess(command, model, expectedMessage, expectedModel);
+    }
+
+    @Test
+    public void execute_invalidClientIndex_failure() {
+        int outOfBoundIndex = model.getFilteredPersonList().size() + 1;
+        ConvertClientToLeadCommand command = new ConvertClientToLeadCommand(Index.fromOneBased(outOfBoundIndex));
+
+        assertCommandFailure(command, model, Messages.MESSAGE_INVALID_PERSON_DISPLAYED_INDEX);
+    }
+
+    // Add more test cases for edge cases, if necessary
+}
+

src/test/java/seedu/address/logic/commands/ConvertLeadToClientCommandTest.java

@@ -0,0 +1,41 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static seedu.address.logic.commands.CommandTestUtil.assertCommandSuccess;
+
+import org.junit.jupiter.api.Test;
+
+import seedu.address.model.Model;
+import seedu.address.model.ModelManager;
+import seedu.address.model.UserPrefs;
+import seedu.address.model.person.Client;
+import seedu.address.model.person.Lead;
+import seedu.address.testutil.TypicalPersons;
+
+public class ConvertLeadToClientCommandTest {
+    private Model model = new ModelManager(TypicalPersons.getTypicalAddressBook(), new UserPrefs());
+    private Model expectedModel = new ModelManager(TypicalPersons.getTypicalAddressBook(), new UserPrefs());
+
+    @Test
+    public void execute_validLeadIndex_success() {
+        Lead leadToConvert = TypicalPersons.getTypicalLeads().get(0); // assuming you have a list of leads
+        ConvertLeadToClientCommand command = new ConvertLeadToClientCommand(leadToConvert.getIndex());
+
+        String expectedMessage = String.format(ConvertLeadToClientCommand.MESSAGE_CONVERT_SUCCESS, leadToConvert);
+        expectedModel.deletePerson(leadToConvert);
+        expectedModel.addPerson(new Client(leadToConvert)); // Assuming a constructor for Client is available
+
+        assertCommandSuccess(command, model, expectedMessage, expectedModel);
+    }
+
+    @Test
+    public void execute_invalidLeadIndex_failure() {
+        int outOfBoundIndex = model.getFilteredPersonList().size() + 1;
+        ConvertLeadToClientCommand command = new ConvertLeadToClientCommand(Index.fromOneBased(outOfBoundIndex));
+
+        assertCommandFailure(command, model, Messages.MESSAGE_INVALID_PERSON_DISPLAYED_INDEX);
+    }
+
+    // Add more test cases for edge cases, if necessary
+}
+