Java AutoGrader

This repo aims to download a list of projects from replit and check it against a standard input/output.

Currently, it is running locally right now, but in the future I hope to expand this to use online methods, either through onlinegdb or another java compiler.

THE CURRENT TEST YOU ARE RUNNING IS CALLED powerball

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How to set this up on Replit

1. Download this repository by clicking on the green <> Code button at the top and click Download Zip
2. Open repl.it and create a new Python repl
3. Unzip the folder you downloaded and drag the contents onto the repl (Make sure the main.py overwrites the current main.py)
4. Alternatively, when creating a new repl click Import from GitHub and follow the instructions
5. On the right side, click shell and run java -version
6. When it prompts you to select a java version, select the adoptopenjdk-openj9-bin-16
7. Read here to read how to get your connect.sid cookie
8. Add a secret to your repl. On the left handed bar, click the padlock icon, and put CONNECT_SID where the key is, and the cookie you just grabbed in the value section.
9. Click in the green run button at the top

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How to Run Locally

1. Install Python 3.8 or above (type python in terminal to test if it works)
2. Install Java JDK and set %JAVA_HOME% env variable (open terminal and type java or javac to test if it works)
3. Download this repository by clicking on the green <> Code button at the top and click Download Zip
4. Unzip the folder and navigate to it from the command line
5. Alternatively if you have git, clone this repository.
6. Setup pip dependencies by running python -m pip install -r requirements.txt
7. Read here to read how to get your connect.sid cookie
8. Rename example.env to .env, and replace REPLACE_THIS with your cookie
9. Run the program by running python main.py or double clicking main.py

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How to get connect.sid cookie

1. In your search bar, click on the padlock icon and click Cookies.
2. Expand the replit.com and Cookies dropdowns.
3. Look for the connect.sid header, click on it, and copy the cookie content.

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How this works

This downloads a zip from the replit through requests library, though you must be logged in to actually get the download. It then unzips and deletes all unnecessary files, as well as injects mixins based off the file mixins/mixin.json. Finally, it compiles all the java files and runs it using python's subprocess library and compares it to the output supplied in test/name.json.

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How to create your own tests

In the tests directory, create a JSON file with its name being the name of the project.

Example test config

File Structure

 - AutoGrader
   - tests
     - example.json

example.json

[
   {
      "input": "hello",
      "output": "world"
   }
]

Reminder: the output does not have the newline/text inputted by the user.