80154: xfi:decimals

Documentation

Test the functionality of the xfi:decimals function. Suggested conversion from precision to decimals: If precision is INF, decimals is INF. If fraction, decimals is INF. If non-zero precision is reported then decimals is (precision - (floor(log10(value)) + 1)). If precision 0 is reported, decimals can't really be specified, so there is no clearly correct decimals, but it has been suggested to report INF and allow formulas to execute. (An "unfriendly" alternate may be to raise an exception. There is no variation to test precision 0 as it has no meaningful decimals representation.)

Owners

Name	Affiliation	Email	Start	End
Herm Fischer	UBMatrix / Mark V Systems	fischer@markv.com	06-04-2008 at 12:12:00

References

http://www.xbrl.org/Specification/XF-PWD-2006-12-07.htm#_Toc152670664

Test Case Variations

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V-01 Returns error for a non-numeric concept

Documentation

The concept has an xbrli:stringItemType data type.

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V01)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c1[1] )
  
  (against file V01)

Outputs

• Error code: xfie:ItemIsNotNumeric

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V-02 Decimals is 0 for 400, reported as decimals 0

Documentation

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V02)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c2[1] )
  
  (against file V02)

Outputs

• Result test: $result instance of xs:integer and $result eq 0

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V-03 Decimals is INF for 400, reported as decimals INF

Documentation

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V03)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c2[2] )
  
  (against file V03)

Outputs

• Result test: $result instance of xs:string and $result eq 'INF'

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V-04 Decimals is -2 for 4e2, reported as decimals -2

Documentation

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V04)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c2[3] )
  
  (against file V04)

Outputs

• Result test: $result instance of xs:integer and $result eq -2

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V-05 Decimals is 1 for 400, reported as precision 4.

Documentation

Formula is decimals = (precision - (floor(log10(value)) + 1)) = (4 - (floor(2.6)+1)) = (4 - 3) = 1.

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V05)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c2[4] )
  
  (against file V05)

Outputs

• Result test: $result instance of xs:integer and $result eq 1

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V-06 Returns INF for a fraction concept

Documentation

The concept has an xs:fractionItemType data type.

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V06)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c3[1] )
  
  (against file V06)

Outputs

• Result test: $result instance of xs:string and $result eq 'INF'

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V-07 Returns error for a tuple concept

Documentation

The concept is a tuple.

Inputs

• schema: decimals-test.xsd
• instance: decimals-instance.xml (DTS Discovery starting point) (ID=V07)
• Function Call: xfi:decimals( /xbrli:xbrl/concept:c4[1] )
  
  (against file V07)

Outputs

• Error code: xqt-err:XPTY0004

Revisions

Name	On	Details
Herm Fischer	06-04-2008 at 12:12:00	Created the test case.
Herm Fischer	22-06-2011 at 00:00:00	Added xmlns:xs.