Vincent W
5e1df5367c
Split documentation into three folders: Architecture, Testing and Installation. Rework and expand architecture.md alongside interfaces.md Split all parts to do with testing from Architecture md's into Test md's Add parameter to ExamResultGenerator node documentation
2.4 KiB
Unit Tests
Unit tests for FinalGradeDeterminator are implemented in src/g2_2025_grade_calculator_pkg/test/FinalGradeDeterminator.test.cpp using Google Test and ROS2 test utilities. The tests use a mock database manager and a mock grade calculator service to simulate the node's interactions.
Test Cases
1. ConstructorTest
Description: Verifies that the node can be constructed without errors.
- Input: Construct a
FinalGradeDeterminatornode. - Expected Output: No exceptions are thrown. The node is created successfully.
2. ExamCollectionTest
Description: Sends the required number of exam results and checks that a grade calculation request is triggered, a student message is published, and the results are stored.
- Input:
- Student:
"Test Student" - Course:
"Test Course" - Grades published:
[80, 85, 90, 75, 95](5 exam results, which is the default required amount)
- Student:
- Expected Output:
- A grade calculation service request is made with the correct student, course, and grades.
- A student message is published with the correct student and course.
- The final grade is calculated as the average: (80 + 85 + 90 + 75 + 95) / 5 = 85.
3. PartialExamCollectionTest
Description: Sends fewer than the required number of exam results and checks that no grade calculation or student message occurs.
- Input:
- Student:
"Test Student" - Course:
"Test Course" - Grades published:
[80, 85, 90](only 3 exam results, less than required)
- Student:
- Expected Output:
- No grade calculation service request is made.
- No student message is published.
4. MultipleStudentsTest
Description: Simulates multiple students submitting exam results and verifies that each student triggers independent grade calculation and messaging.
- Input:
- Students:
"Alice","Bob" - Course:
"Test Course" - Each student receives grades:
[80, 85, 90, 75, 95](5 exam results per student)
- Students:
- Expected Output:
- Two grade calculation service requests are made, one for each student, with the correct grades.
- Two student messages are published, one for each student.
- The final grade for each student is calculated as the average: (80 + 85 + 90 + 75 + 95) / 5 = 85.
These tests ensure that the node correctly collects exam results, triggers grade calculation at the right time, publishes the appropriate messages, and interacts with the database as expected.