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Bug: The initial test for helloWorld fails because the function helloWorld() does not return the expected string "Hello, World!". #512

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utkarshahu opened this issue Jan 8, 2025 · 1 comment · May be fixed by #513
Open
4 tasks done

Bug: The initial test for helloWorld fails because the function helloWorld() does not return the expected string "Hello, World!". #512

utkarshahu opened this issue Jan 8, 2025 · 1 comment · May be fixed by #513
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Status: Needs Review This issue/PR needs an initial or additional review Type: Bug Involves something that isn't working as intended

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@utkarshahu
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Prerequisites

  • I have thoroughly read and understand The Odin Project Contributing Guide
  • I have searched the existing issues to ensure this bug hasn't been reported before (please have a look through our open issues list to make sure)
  • The title of this issue follows the Bug - location of bug: brief description of bug format, e.g. Bug - Exercises: File type incorrect for all test files
  • (Optional) I am interested in working on this issue and would like to be assigned to it

Bug Description

The issue is that the helloWorld() function is either not defined or is incorrectly implemented. You need to implement or modify the function to return the correct string.

Screenshot 2025-01-08 121933

How to reproduce the bug

1.Clone or Fork the Repository

Go to the JavaScript Exercises repository.
Clone or fork the repository to your local machine.

git clone https://github.com/TheOdinProject/javascript-exercises.git

2.Navigate to the Exercise Directory
Open the terminal or command prompt and navigate to the 01_helloWorld directory:

cd javascript-exercises/01_helloWorld

3.Run the Test
Run the Jest test for the helloWorld.spec.js file by using the following command:

npm test helloWorld.spec.js

4.Observe the Failure
When the test is run, it will fail with an error message similar to:

PS D:\electron\javascript-exercises> npm test helloWorld.spec.js

[email protected] test
jest helloWorld.spec.js

FAIL 01_helloWorld/helloWorld.spec.js
Hello World
× says "Hello, World!" (3 ms)

● Hello World › says "Hello, World!"

expect(received).toEqual(expected) // deep equality

Expected: "Hello, World!"
Received: ""

  3 | describe('Hello World', function() {
  4 |   test('says "Hello, World!"', function() {
> 5 |     expect(helloWorld()).toEqual('Hello, World!');
    |                          ^
  6 |   });
  7 | });
  8 |

  at Object.toEqual (01_helloWorld/helloWorld.spec.js:5:26)

Test Suites: 1 failed, 1 total
Tests: 1 failed, 1 total
Snapshots: 0 total
Time: 0.297 s, estimated 1 s
Ran all test suites matching /helloWorld.spec.js/i.

Expected Behavior

HelloWorld Function Test

Description

This is a simple test case for the helloWorld() function, which verifies that the function correctly returns the string "Hello, World!".

Steps to Reproduce the Test

1. Run the Test

To run the test for the helloWorld() function, use the following command in your terminal:

npm test helloWorld.spec.js

### 2. Expected Test Output
After running the test, the following output indicates that the helloWorld() function is working correctly:

PASS  01_helloWorld/helloWorld.spec.js
  Hello World
    √ says "Hello, World!" (2 ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        0.409 s, estimated 1 s
Ran all test suites matching /helloWorld.spec.js/i.


###SCREENSHOT
![Screenshot 2025-01-08 121949](https://github.com/user-attachments/assets/c2bb0961-1f13-49e3-9c4e-5df18ea3d85b)



### Explanation:
- **Steps to Reproduce**: Clearly explains how to run the test.
- **Expected Output**: Shows what the correct output should look like.
- **Screenshot**: Includes a screenshot of the test result for better understanding.

This format will be clean and informative in your `README.md` file. Let me know if you'd like further changes!




### Device

Windows 11 (64-bit)

### OS

Windows 11 

### Browser and its version

node -- 10.9.2

### (Optional) Additional Comments

## Additional Information:

- **Context of the Issue:**
  The issue with the `helloWorld()` function was identified during testing, where the function was returning an empty string instead of the expected `"Hello, World!"`. This caused the test case to fail, even though the intention of the function was to output a simple greeting.

- **Root Cause:**
  The root cause of the issue was that the `helloWorld()` function was either missing a return statement or the return statement was incorrect, leading to an empty string being returned.

- **Fix Implemented:**
  The function was modified to correctly return the string `"Hello, World!"` as expected. This fix ensures that the function now passes the associated test case.

- **Test Environment:**
  - The test was run using the `npm test helloWorld.spec.js` command in the local development environment.
  - Jest was used as the testing framework to run the unit tests for the `helloWorld()` function.

- **Testing Outcome:**
  After applying the fix, the test case was re-executed, and it passed successfully, confirming that the function now returns the correct value.

- **Test Result Snapshot:**
  - The test suite for `helloWorld.spec.js` showed that all the tests passed, with the following output:
  
    ```plaintext
    PASS  01_helloWorld/helloWorld.spec.js
      Hello World
        √ says "Hello, World!" (2 ms)

    Test Suites: 1 passed, 1 total
    Tests:       1 passed, 1 total
    Snapshots:   0 total
    Time:        0.409 s, estimated 1 s
    Ran all test suites matching /helloWorld.spec.js/i.
    ```

- **Screenshot of Success:**
  ![Screenshot of Test Passing](https://github.com/user-attachments/assets/5a80762c-883e-4db3-a647-50735d624cc1)

-**Further Discussions:**
 If anyone encounters similar issues or has questions about the fix, please feel free to reach out to the repository maintainers or join the discussion on [#test-issues](https://discord.com/channels/) on Discord. Alternatively, you can contact me directly:

1. LinkedIn: [Utkarsh Sahu](https://www.linkedin.com/in/utkarshahu/)
2. Email: [email protected]

- **Potential Improvements:**
While the issue has been resolved, we could consider adding additional test cases for edge cases, such as unexpected inputs or ensuring that the function always returns a string, to further improve the reliability of the code.
@utkarshahu utkarshahu added Status: Needs Review This issue/PR needs an initial or additional review Type: Bug Involves something that isn't working as intended labels Jan 8, 2025
@utkarshahu
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I would like to contribute to this project, and I have a solution for this error.

@utkarshahu utkarshahu linked a pull request Jan 8, 2025 that will close this issue
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Update in hello World.js utkarshahu/javascript-exercises
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