public void Should_Write_Program_Output_Strings_To_The_Console()
{
var sampleOutput = "Enter a positive number between 1 and 100: ";
using (StringWriter writeStream = new StringWriter())
{
Console.SetOut(writeStream);
var userInterface = MatrixUserInterface.GetInstance();
userInterface.Write(sampleOutput);
Assert.AreEqual(sampleOutput, writeStream.ToString());
}
}
public void Should_Append_New_Line_When_Using_The_WriteLine_Method()
{
var sampleOutput = "What gives?";
using (StringWriter writeStream = new StringWriter())
{
Console.SetOut(writeStream);
var userInterface = MatrixUserInterface.GetInstance();
userInterface.WriteLine(sampleOutput);
Assert.AreEqual(sampleOutput + Environment.NewLine, writeStream.ToString());
}
}
public void Should_Delegate_UserInput_To_The_Console()
{
var sampleInput = "Kylo Ren";
using (StringReader readerStream = new StringReader(sampleInput))
{
Console.SetIn(readerStream);
var userInterface = MatrixUserInterface.GetInstance();
var receivedInput = userInterface.ReadLine();
Assert.AreEqual(sampleInput, receivedInput);
}
}
public void Writing_Should_Work_With_Objects_Of_Any_Kind()
{
var objectOutput = new
{
Name = "Tyrion Lannister",
Job = "Hand of the king"
};
using (StringWriter writeStream = new StringWriter())
{
Console.SetOut(writeStream);
var userInterface = MatrixUserInterface.GetInstance();
userInterface.Write(objectOutput);
Assert.AreEqual(objectOutput.ToString(), writeStream.ToString());
}
}
