Lab 11: Writing test cases for threads

Setup

Download the Lab11_Tests.java file.
Download the Lab11_Thread.java file.

Use git, as discussed in Lab 0, to create a repo called gitusername-lab11, add the file above to it, and commit and push the changes to github. Copy the file above into it and follow the comments in the code to write your unit tests.

Writing test cases to find bugs

You will be writing unit tests that all pass against the correct implementation of Lab11_Thread above. Once your tests pass locally, you’ll be uploading your code to the submitserver and see if you found all the bugs in buggy implementations there.

You may not modify (in spirit or in text) the existing code provided in the test case template, but you should, instead, add new lines of code.

Note: you must engineer your tests so that they run together in any arbitrary order and interleaving of statements. If your tests run fine individually, but don’t run together (i.e. when you turn them all on) you’ll need to think about why and figure out how to get around this problem in your test suite.

Running your code

To run your unit tests – remember, you need to have the junit jar file in the same directory – compile and run your code with the following commands on the terminal (depending on your OS):

Windows

javac -classpath ".;junit-platform-console-standalone-1.7.0-M1.jar" *.java
java -classpath ".;junit-platform-console-standalone-1.7.0-M1.jar" org.junit.runner.JUnitCore Lab11_Tests

Mac/Linux

javac -classpath ".:junit-platform-console-standalone-1.7.0-M1.jar" *.java
java -classpath ".:junit-platform-console-standalone-1.7.0-M1.jar" org.junit.runner.JUnitCore Lab11_Tests

All your tests should pass at home before submitting to the submitserver.

Grading rubric and submission

Type the following command to compress your files into the required submission format:
tar -cvf lab11.tar Lab11_Tests.java

Submit your code, as lab11.tar on the submitserver.

Note: your tests cases must all pass at home in order to be eligible to earn points for finding bugs, similar to Lab3. You must also have meaningfully/usefully changed the test template provided with this lab in order to earn the 50 points below for passing all tests on a correct implementation.

Item	Points
Your test suite passes all tests on a correct implementation of Lab11_Thread	50
Your test suite finds all the bugs in incorrect implementations of Lab11_Thread	50 (25 pts each)
TOTAL	100