@Test
public void testPreassignProject() throws Exception {
s.preassignProject(testProject_1);
s.preassignProject(s.getRandomPreference());
assertEquals("there shouldn't be 2 preassigned project", 1, s.getOrderedPreferences().size());
assertEquals("expect true", true, s.hasPreassignedProject());
}
@Test
public void testHasPreassignedProject() throws Exception {
s.preassignProject(testProject_1);
assertEquals("expect equal", true, s.hasPreassignedProject());
}