public void GetOutPutString_Add_AtTheBegining()
{
Dictionary <double, Alphabet> list = new Dictionary <double, Alphabet>();
string input = "fed";
string expectedInitial = "def";
IAlphabetMachine machine = new AlphabetMachine(input);
Assert.Equal(expectedInitial, machine.GetOutPutString());
// now add ab&c
string expected = "abcdef";
machine.AddAlphabet(new Alphabet('c'));
machine.AddAlphabet(new Alphabet('a'));
machine.AddAlphabet(new Alphabet('b'));
string actual = machine.GetOutPutString();
Assert.Equal(expected, actual);
}
public void GetOutPutString_AddRandomly_DisplayInOrder()
{
string expected = "abcde";
IAlphabetMachine machine = new AlphabetMachine();
machine.AddAlphabet(new Alphabet('b'));
machine.AddAlphabet(new Alphabet('c'));
machine.AddAlphabet(new Alphabet('d'));
machine.AddAlphabet(new Alphabet('e'));
machine.AddAlphabet(new Alphabet('a'));
string actual = machine.GetOutPutString();
Assert.Equal(expected, actual);
}
public void AddAlphabet_DuplicateTwice_CountIs3()
{
Alphabet a = new Alphabet('a');
Dictionary <double, Alphabet> list = new Dictionary <double, Alphabet>();
IAlphabetMachine machine = new AlphabetMachine();
Assert.Empty(machine.List);
machine.AddAlphabet(a);
machine.AddAlphabet(a);
machine.AddAlphabet(a);
Assert.NotEmpty(machine.List);
Assert.Equal(3, machine.List[a.Position].Count);
}
public void AddAlphabet_New()
{
Alphabet a = new Alphabet('a');
IAlphabetMachine machine = new AlphabetMachine();
Assert.Empty(machine.List);
machine.AddAlphabet(a);
Assert.NotEmpty(machine.List);
Assert.Equal(1, machine.List[a.Position].Count);
}
public void GetOutPutString_Add_ToTheEnd()
{
Dictionary <double, Alphabet> list = new Dictionary <double, Alphabet>();
string input = "xy";
string expectedInitial = "xy";
IAlphabetMachine machine = new AlphabetMachine(input);
Assert.Equal(expectedInitial, machine.GetOutPutString());
// now add ab&c
string expected = "xyz";
machine.AddAlphabet(new Alphabet('z'));
string actual = machine.GetOutPutString();
Assert.Equal(expected, actual);
}