public void TestCalculate()
{
ICalculator calculator = new RomanCalculator();
Assert.AreEqual(calculator.Calculate(commands[0], romanSymbolDefinition), 5331);
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[1], romanSymbolDefinition)).Message,
"V can not be subtracted");
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[2], romanSymbolDefinition)).Message,
"I can not be subtracted from L");
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[3], romanSymbolDefinition)).Message,
"D can not be repeated");
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[4], romanSymbolDefinition)).Message,
"Symbols must be placed in order of value, starting with the largest values");
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[5], romanSymbolDefinition)).Message,
"The symbols can be repeated three times in succession, but no more");
Assert.AreEqual(
Assert.ThrowsException <Exception>(
() => calculator.Calculate(commands[6], romanSymbolDefinition)).Message,
"Invalid Symbol");
}
