# Yahoo! UI Library

### yuitest 2.9.0

Yahoo! UI Library > yuitest > YAHOO.util.ShouldFail
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## Class YAHOO.util.ShouldFail - extends YAHOO.util.AssertionError

ShouldFail is subclass of AssertionError that is thrown whenever a test was expected to fail but did not.

### Constructor

YAHOO.util.ShouldFail `( message )`

Parameters:
  `message <String>` The message to display when the error occurs.

### Properties

#### name - `String`

The name of the error that occurred.

#### Properties inherited from YAHOO.util.AssertionError:

`name`

#### Methods inherited from YAHOO.util.AssertionError:

`getMessage, toString`

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