Lesson: 03 | School Grading

Codes

public class SchoolGrading{
    public static String getTaskPriority(Integer score) {
        String grade;
        
        if (score > 85) {
            grade = 'A'; 
        } else if (score > 70) {
            grade = 'B';
        } else if (score > 60) {
            grade = 'C';
        } else if (score > 50) {
            grade = 'D';
        } else {
            grade = 'F';
        }
        
        return grade;
    }
}

Apex Test Class

@isTest
private class SchoolGradingTest {
    @isTest
    static void testGetTaskPriority() {
        Integer score = 90;
        String expectedGrade = 'A';
        String actualGrade = SchoolGrading.getTaskPriority(score);
        System.assertEquals(expectedGrade, actualGrade, 'Expected grade to be "A" for score of 90');
        
        score = 75;
        expectedGrade = 'B';
        actualGrade = SchoolGrading.getTaskPriority(score);
        System.assertEquals(expectedGrade, actualGrade, 'Expected grade to be "B" for score of 75');
        
        score = 65;
        expectedGrade = 'C';
        actualGrade = SchoolGrading.getTaskPriority(score);
        System.assertEquals(expectedGrade, actualGrade, 'Expected grade to be "C" for score of 65');
        
        score = 55;
        expectedGrade = 'D';
        actualGrade = SchoolGrading.getTaskPriority(score);
        System.assertEquals(expectedGrade, actualGrade, 'Expected grade to be "D" for score of 55');
        
        score = 40;
        expectedGrade = 'F';
        actualGrade = SchoolGrading.getTaskPriority(score);
        System.assertEquals(expectedGrade, actualGrade, 'Expected grade to be "F" for score of 40');
    }
}

Video