generated from wessel/boilerplate
53 lines
2.4 KiB
Markdown
53 lines
2.4 KiB
Markdown
## 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 `FinalGradeDeterminator` node.
|
|
- **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)
|
|
- **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)
|
|
- **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)
|
|
- **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.
|