goog.labs.testing.IsNullMatcher

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

The IsNull matcher.

new IsNullMatcher()

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.

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 values.

Parameters

None.

Returns

goog.labs.testing.objectmatcher.IsNullMatcher

A IsNullMatcher.

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goog.labs.testing.IsNullMatcher

new IsNullMatcher()

Instance Methods

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

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

Static Functions

IsNullMatcher.isNull() `→` `goog.labs.testing.objectmatcher.IsNullMatcher`

goog.labs.testing.IsNullMatcher

new IsNullMatcher()

Instance Methods

this.describe( value, opt_description ) → string

this.matches( value ) → boolean

Static Functions

IsNullMatcher.isNull() → goog.labs.testing.objectmatcher.IsNullMatcher

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

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

IsNullMatcher.isNull() `→` `goog.labs.testing.objectmatcher.IsNullMatcher`