public void ModifyContent_WithValidArgument_AddsStrings(string prefix, string suffix, string toModify, string expected)
{
var action = new AddStringContentAction(prefix, suffix);
var result = action.ModifyContent(toModify);
Assert.Equal(expected, result);
}
public void ModifyContent_WithNullArgument_ReturnsNull()
{
var action = new AddStringContentAction(null, null);
var result = action.ModifyContent(null);
Assert.Null(result);
}
