public void TeachingAssistantCanTeachASingleClass()
{
var underTest = new TeachingAssistant(3);
underTest.AddClassTitle("Biology 101");
Assert.Equal("Biology 101", underTest.ClassTitles.Single());
}
public void TeachingAssistantCanTeachTwoClasses()
{
var underTest = new TeachingAssistant(3);
underTest.AddClassTitle("Biology 101");
underTest.AddClassTitle("Physics 206");
Assert.Equal("Biology 101", underTest.ClassTitles.First());
Assert.Equal("Physics 206", underTest.ClassTitles.Last());
Assert.Equal(2, underTest.ClassTitles.Count());
}
public void TeachingAssistantCanTeachNoMoreThanTwoClasses()
{
var underTest = new TeachingAssistant(3);
underTest.AddClassTitle("Biology 101");
underTest.AddClassTitle("Physics 206");
Assert.Throws<InvalidOperationException>(() => underTest.AddClassTitle("Chemistry 112"));
Assert.Equal("Biology 101", underTest.ClassTitles.First());
Assert.Equal("Physics 206", underTest.ClassTitles.Last());
Assert.Equal(2, underTest.ClassTitles.Count());
}
public void TeachingAssistantHasProperDefault()
{
var underTest = new TeachingAssistant(42)
{
FirstName = "An",
LastName = "Assistant",
SubjectArea = "Science"
};
Assert.Equal(42, underTest.Id);
Assert.Equal("Science", underTest.SubjectArea);
Assert.False(underTest.ClassTitles.Any());
}
public void TeachingAssistantCanReplaceAClass()
{
var underTest = new TeachingAssistant(3);
underTest.AddClassTitle("Biology 101");
underTest.AddClassTitle("Physics 206");
underTest.RemoveClassTitle("Biology 101");
underTest.AddClassTitle("Chemistry 112");
Assert.Equal("Chemistry 112", underTest.ClassTitles.First());
Assert.Equal("Physics 206", underTest.ClassTitles.Last());
Assert.Equal(2, underTest.ClassTitles.Count());
}
