public void Append_NumberToAppendIsTheClearButton_DisplayedValueIsZero()
{
string displayedValue = "1";
string numbertoAppend = "C";
AppendsToDisplayedValue.Append(displayedValue, numbertoAppend).Should().Be("0");
}
public void Append_DisplayedValueWasZero_ReplacesDisplayedeValue()
{
string displayedValue = "0";
string numberToAppend = "1";
AppendsToDisplayedValue.Append(displayedValue, numberToAppend).Should().Be("1");
}
public void Append_DisplayedValueWasNotZero_AppendsValueToString()
{
string displayedValue = "1";
string numberToAppend = "1";
AppendsToDisplayedValue.Append(displayedValue, numberToAppend).Should().Be("11");
}
private void AppendButtonValueToCurrentNumerend(string numberToAppend)
{
_currentValue = AppendsToDisplayedValue.Append(_currentValue, numberToAppend);
DisplayedValue.Text = _currentValue; //this seems dumb but I don't know what to do about it yet
}
