public void AgainstNullArgument_FalseCondition_NoException()
{
string param = "notNull";
Assert.That(() => Guard.AgainstNullArgument("param", param), Throws.Nothing);
Assert.That(() => new GuardSubject().Method("notNull"), Throws.Nothing);
}
public void AgainstNullArgument_TrueCondition_ExceptionWithDefaultMessageAndParam()
{
string param = null, paramName = "param", actualMessage = new ArgumentNullException(paramName).Message;
Assert.That(() => Guard.AgainstNullArgument(paramName, param),
Throws.InstanceOf <ArgumentNullException>()
.With.Property("Message").EqualTo(actualMessage).IgnoreCase
.And.With.Property("ParamName").EqualTo(paramName));
Assert.That(() => new GuardSubject().Method(null),
Throws.InstanceOf <ArgumentNullException>()
.With.Property("Message").EqualTo(actualMessage).IgnoreCase
.And.With.Property("ParamName").EqualTo(paramName));
}
public void Method(string param)
{
Guard.AgainstNullArgument("param", param);
}