function testSetCourseNumber()
 {
     //Arrange
     $name = "Philosophy 101";
     $course_number = "PHIL101";
     $test_course = new Course($name, $course_number);
     //Act
     $test_course->setCourseNumber('PHIL101');
     $result = $test_course->getCourseNumber();
     //Assert
     $this->assertEquals('PHIL101', $result);
 }
 function test_setCourseNumber()
 {
     //Arrange
     $name = "History";
     $course_number = "HIST101";
     $test_course = new Course($name, $course_number);
     //Act
     $test_course->setCourseNumber("ENG500");
     $result = $test_course->getCourseNumber();
     //Assert
     $this->assertEquals("ENG500", $result);
 }
 function test_setCourseNumber()
 {
     //Arrange
     $course_name = "History";
     $id = null;
     $course_number = "HIST:101";
     $test_course = new Course($course_name, $course_number, $id);
     //Act
     $test_course->setCourseNumber("BIO:111");
     $result = $test_course->getCourseNumber();
     //Assert
     $this->assertEquals("BIO:111", $result);
 }
 function test_setCourseNumber()
 {
     //Arrange
     $course_name = "Monster Literature";
     $course_number = "ENG304";
     $test_course = new Course($course_name, $course_number);
     $new_number = "ENG204";
     //Act
     $test_course->setCourseNumber($new_number);
     $result = $test_course->getCourseNumber();
     //Assert
     $this->assertEquals($new_number, $result);
 }