Your task is to add the following three test cases to your Testiny project, and execute them in a test run. You will have to execute these on the Chat Application. The priority of each test case can be set to any appropriate level.


```
- Test Case ID: TC-01
- Title: Registration with Existing Email
- Precondition:
    1. The user is on the registration page.
    2. An account is already registered using the email "testuser1@example.com".
- Test Steps:
    1. Enter "testuser2" in the "Username" field.
    2. Enter "testuser1@example.com" in the "Email" field.
    3. Enter "examplePassword123" in the "Password" field.
    5. Click the "Register" button.
- Expected Result (Postcondition):
    1. The message "User already exists" should be displayed on the screen.


- Test Case ID: TC-02
- Title: Successful Login
- Precondition:
    1. The user is on the login page.
    2. An account with the username "testuser1" is already registered.
- Test Steps:
    1. Enter a "testuser1" in the "Username" field.
    2. Enter "examplePassword123" in the "Password" field.
    3. Click the "Login" button.
- Expected Result (Postcondition):
    1. The user should be successfully logged in.
    2. The user should be redirected to the chat page where they can see the Chat Box.


- Test Case ID: TC-03
- Title: Sending an empty message in the Chat
- Precondition:
    1. The user is already logged in and is on the chat page.
- Test Steps:
    1. Make sure the chatbox input field is empty.
    2. Click "Send"
- Expected Result (Postcondition):
    1. No message is sent in the chatbox.
```

After you execute the test cases, write their results as "Passed" or "Failed" in the box.

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In this course, the user will get an introduction on how to perform manual testing on primarily web applications. The skills aquired in this course can be used in automation testing as well.

In this section, the user will get acquainted with the concepts of Software Testing & Quality Assurance. The importance of Software Testing & QA will be explained along with the different types of Software Testing, and some tips on when to use certain types of testing.

If you want to better understand Black Box and Gray Box Testing then this course is suitable for you.

In this section, we will look at Software Testing in a practical manner. This section is primarily focused on learning how to formally write test cases in textual form, and how to use a Test Management Application to create and execute test cases.

In this section, we will be learning about different types of testing that fall under the category of Functional Testing. We will learn how to perform those tests using a Test Management Application which we explored in the last section.

In this chapter, we will cover all the important types of software testing that fall under the category of Non-Functional Testing. Although most of the non-functional testing is Whitebox, we will still try to cover each type as much as relevant in this course.

Introduction to Manual Testing & QA in Web Development

Test Case Execution Task