Throw

ShouldThrowAction
var homer = new Person { Name = "Homer", Salary = 30000 };
var denominator = 1;
Should.Throw<DivideByZeroException>(() =>
                {
                    var y = homer.Salary / denominator;
                });
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Exception
`var y = homer.Salary / denominator;`
    should throw
System.DivideByZeroException
    but did not
ShouldThrowAsync
Func<Task> doSomething = async () =>
{
    await Task.Delay(1);
};
var exception = await Should.ThrowAsync<DivideByZeroException>(() => doSomething());
​snippet source | anchor​
Exception
Task doSomething() should throw System.DivideByZeroException but did not
ShouldThrow Action Extension
var homer = new Person { Name = "Homer", Salary = 30000 };
var denominator = 1;
var action = () =>
                {
                    var y = homer.Salary / denominator;
                };
action.ShouldThrow<DivideByZeroException>();
​snippet source | anchor​
Exception
`action()`
    should throw
System.DivideByZeroException
    but did not
ShouldThrowFunc
Should.Throw<ArgumentNullException>(() => new Person("Homer"));
​snippet source | anchor​
Exception
`new Person("Homer")`
    should throw
System.ArgumentNullException
    but did not
ShouldThrow Func Extension
var func = () => new Person("Homer");
func.ShouldThrow<ArgumentNullException>();
​snippet source | anchor​
Exception
`func()`
    should throw
System.ArgumentNullException
    but did not
ShouldThrowFuncOfTask
var homer = new Person { Name = "Homer", Salary = 30000 };
var denominator = 1;
Should.Throw<DivideByZeroException>(() =>
                {
                    var task = Task.Factory.StartNew(
                        () =>
                        {
                            var y = homer.Salary / denominator;
                        });
                    return task;
                });
​snippet source | anchor​
Exception
Task `var task = Task.Factory.StartNew( () => { var y = homer.Salary / denominator; }); return task;`
    should throw
System.DivideByZeroException
    but did not

Last modified 5mo ago