CS$401$ Assignment #$3$: Testing String

Operations with JUnit @Parameters

Project Description:

In this project, students will implement JUnit parameterized tests to validate various

string operations. The objective is to familiarize students with the usage of JUnit's

@Parameters annotation to execute parameterized tests with non$-$numerical types,

specifically focusing on string inputs. Students will write test cases to verify the

correctness of string manipulation methods under different input scenarios.

Project Tasks:

Setup Project Environment:

$$ Set up a Java project in an Integrated Development Environment $($IDE$)$

such as Eclipse or IntelliJ IDEA.

$$ Configure the project to use JUnit testing framework.

Implement String Operations Class:

$$ Create a Java class named StringUtils with methods for string

operations such as:

$$ Concatenation of two strings.

$$ Reversal of a string.

$$ Conversion of a string to uppercase.

$$ Trimming of leading and trailing whitespace.

Write Parameterized Test Cases:

$$ Implement JUnit test class named StringUtilsTest with

parameterized test methods.

$$ Use the @Parameters annotation to define input parameters for test

methods.

$$ Write test methods to verify the functionality of string operations under

different input scenarios.

$$ Include test cases with various types of string inputs, including empty

strings, single characters, alphanumeric strings, and strings with

whitespace.

Execute and Validate Test Cases:

$$ Execute the parameterized test cases using the JUnit test runner.

$$ Verify that all test cases pass successfully, ensuring the correctness of

string manipulation methods for different input parameters.

$$ Analyze test results and troubleshoot any failures or errors encountered

during test execution.

Refactor and Enhance Test Coverage:

$$ Refactor test cases to improve code readability and maintainability.

$$ Enhance test coverage by adding additional parameterized test cases to

cover edge cases and corner scenarios.

$$ Verify that the string operations class behaves as expected under all

possible input conditions.

Documentation and Reporting:

$$ Document the test plan, including test objectives, test scenarios, and test

data.

$$ Record the test results and any issues encountered during testing.

$$ Prepare a test report summarizing the test coverage, test execution

results, and overall quality assessment of the string operations class