goog.labs.testing.IsNullOrUndefinedMatcher

Provided By	`goog.labs.testing.IsNullOrUndefinedMatcher`
All Implemented Interfaces	`goog.labs.testing.Matcher`
Alias for	`goog.labs.testing.objectmatcher.IsNullOrUndefinedMatcher`

The IsNullOrUndefined matcher.

new IsNullOrUndefinedMatcher()

Parameters	None.

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Instance Methods

Describes why the matcher failed.

Specified by

goog.labs.testing.Matcher

Parameters

`value`	`*`
	The value that didn't match.
`opt_description`	`string=`
	A partial description to which the reason will be appended.

Returns

string

Description of why the matcher failed.

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Determines if input value is null or undefined.

Specified by

goog.labs.testing.Matcher

Parameters

`value`	`*`
	The object to match.

Returns

boolean

Whether the input value matches this matcher.

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Static Functions

Returns a matcher that matches all null and undefined values.

Parameters

None.

Returns

goog.labs.testing.objectmatcher.IsNullOrUndefinedMatcher

A IsNullOrUndefinedMatcher.

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goog.labs.testing.IsNullOrUndefinedMatcher

new IsNullOrUndefinedMatcher()

Instance Methods

`this.`describe( `value`, `opt_description` ) `→` `string`

`this.`matches( `value` ) `→` `boolean`

Static Functions

IsNullOrUndefinedMatcher.isNullOrUndefined() `→` `goog.labs.testing.objectmatcher.IsNullOrUndefinedMatcher`

goog.labs.testing.IsNullOrUndefinedMatcher

new IsNullOrUndefinedMatcher()

Instance Methods

this.describe( value, opt_description ) → string

this.matches( value ) → boolean

Static Functions

IsNullOrUndefinedMatcher.isNullOrUndefined() → goog.labs.testing.objectmatcher.IsNullOrUndefinedMatcher

`this.`describe( `value`, `opt_description` ) `→` `string`

`this.`matches( `value` ) `→` `boolean`

IsNullOrUndefinedMatcher.isNullOrUndefined() `→` `goog.labs.testing.objectmatcher.IsNullOrUndefinedMatcher`