# Yahoo! UI Library

### test 3.0.0b1

Yahoo! UI Library > test > Assert.UnexpectedValue
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## Class Assert.UnexpectedValue - extends Assert.Error

UnexpectedValue is subclass of Error that is thrown whenever a value was unexpected in its scope. This typically means that a test was performed to determine that a value was *not* equal to a certain value.

### Constructor

Assert.UnexpectedValue `( message , unexpected )`

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

### Properties

#### name - `String`

The name of the error that occurred.

#### unexpected - `Object`

The unexpected value.

#### Properties inherited from Assert.Error:

`name`

### Methods

#### getMessage

`String getMessage ( )`
Returns a fully formatted error for an assertion failure. The message contains information about the unexpected value that was encountered.

Returns: `String`
  A string describing the error.

#### Methods inherited from Assert.Error:

`getMessage, toString, valueOf`

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