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 ### Part 11.2 - Test `Alumni` Class
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 * Write a test class which ensures that each `Student` in the `Alumni` class has been taught `1200` hours upon injection of the `Alumni` dependency.
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 * Ensure the `numberOfHoursTaught` has been evenly distributed amongst each of the instructors.
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+
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+* **Tip:** How to derive `numberOfHoursTaught` dynamically
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+```java
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+int numberOfInstructors = instructors.size();
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+int numberOfStudents = students.size();
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+double numberOfHoursToTeachEachStudent = 1200;
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+double numberOfHoursToTeach = numberOfHoursToTeachEachStudent * numberOfStudents;
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+double numberOfHoursPerInstructor = numberOfHoursToTeach / numberOfInstructors;
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+```