ITestOutputHelper

CalculatorTest.cs

Public class CalculatorTest { 

	private readonly ITestOutputHelper _testOutput; 

	public CalculatorTest(ITestOutputHelper _testOutput) 
	{ 
		this._testOutput = _testOutput; 
	} 

	[Fact] 
	public void MyTest(){
	
		// test goes here
		
		// ... ... ...

		_testOutput.WriteLine("This will write to test output, not in console output"); 
	} 
}