public void IfOnlyFirstDigitIsANumberNotEqualToZero_ReturnExpectedOutput()
{
long number = 9000000;
string expected = "9000000";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}
public void IfLengthIsMoreThanThreeAndHasZeros_ReturnHundredsTensAndOnes()
{
long number = 54203;
string expected = "50000 + 4000 + 200 + 3";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}
public void IfLengthIsThreeAndThereAreNoZeros_ReturnHundredsTensAndOnes()
{
long number = 375;
string expected = "300 + 70 + 5";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}
public void IfLengthIsTwoAndOnePlaceIsZero_ReturnTensOnly()
{
long number = 20;
string expected = "20";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}
public void IfLengthIsTwo_ReturnTensPlusOnes()
{
long number = 21;
string expected = "20 + 1";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}
public void IfLengthIsOne_ReturnNumber()
{
long number = 1;
string expected = "1";
string actual = Expander.ExpandNumber(number);
Assert.AreEqual(expected, actual);
}