Invalid request produced by WCS 1.0.0 test wcs1-0-0:getcoverage_operations-getcoverage_response-encoding-supportedFormats

[robinhoutmeyers]

The assertion of the test is "A valid getCoverage response is returned for each of the supportedFormats.". For this purpose, it first performs a DescribeCoverage request. It then sends a GetCoverage request for one of the coverages. However, the GetCoverage request received from the test engine is wrong, because it contains a space:

LuciadOGCServices/wcs100?&CoVeRaGe=usa&HeIgHt=100&CrS=EPSG:4326 urn:ogc:def:crs:OGC:1.3:CRS84&ReQuEsT=GetCoverage&BbOx=-168.1,13.0,-60.099999999999994,75.0&FoRmAt=GeoTIFF&WiDtH=200&SeRvIcE=WCS&VeRsIoN=1.0.0

Note the two values in the CRS parameter and the space between them.

The DescribeCoverage responses looks as follows

<CoverageDescription xmlns:gml="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink"
                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                     version="1.0.0"
                     xsi:schemaLocation="http://www.opengis.net/wcs http://84.193.120.58:8080/LuciadOGCServices/schemas/wcs/1.0.0/describeCoverage.xsd">
               <CoverageOffering>
                  <description>null</description>
                  <name>usa</name>
                  <label>usa</label>
                  <lonLatEnvelope>
                     <gml:pos>-168.1 13.0</gml:pos>
                     <gml:pos>-60.099999999999994 75.0</gml:pos>
                  </lonLatEnvelope>
                  <domainSet>
                     <spatialDomain>
                        <gml:Envelope srsName="EPSG:4326">
                           <gml:pos>-168.1 13.0</gml:pos>
                           <gml:pos>-60.099999999999994 75.0</gml:pos>
                        </gml:Envelope>
                        <gml:Envelope srsName="urn:ogc:def:crs:OGC:1.3:CRS84">
                           <gml:pos>-168.1 13.0</gml:pos>
                           <gml:pos>-60.099999999999994 75.0</gml:pos>
                        </gml:Envelope>
                        <gml:RectifiedGrid dimension="2" srsName="urn:ogc:def:crs:OGC:1.3:CRS84">
                           <gml:limits>
                              <gml:GridEnvelope>
                                 <gml:low>0 0</gml:low>              
                                 <gml:high>1295 743</gml:high>            
                              </gml:GridEnvelope>
                           </gml:limits>
                           <gml:axisName>x</gml:axisName>
                           <gml:axisName>y</gml:axisName>
                           <gml:origin>
                              <gml:pos>-168.05833333333334 74.95833333333333</gml:pos>
                           </gml:origin>
                           <gml:offsetVector>0.08333333333333333 0.0</gml:offsetVector>
                           <gml:offsetVector>0.0 -0.08333333333333333</gml:offsetVector>
                        </gml:RectifiedGrid>
                     </spatialDomain>
                  </domainSet>
                  <rangeSet>
                     <RangeSet>
                        <name>usa</name>
                        <label>usa</label>
                        <nullValues>
                           <singleValue>35</singleValue>
                        </nullValues>
                     </RangeSet>
                  </rangeSet>
                  <supportedCRSs>
                     <requestCRSs>urn:ogc:def:crs:OGC:1.3:CRS84</requestCRSs>
                     <requestCRSs>EPSG:4326</requestCRSs>
                     <responseCRSs>urn:ogc:def:crs:OGC:1.3:CRS84</responseCRSs>
                  </supportedCRSs>
                  <supportedFormats>
                     <formats>GeoTIFF</formats>
                  </supportedFormats>
                  <supportedInterpolations>
                     <interpolationMethod>nearest neighbor</interpolationMethod>
                     <interpolationMethod>bilinear</interpolationMethod>
                  </supportedInterpolations>
               </CoverageOffering>
               <CoverageOffering>
                  <description>null</description>
                  <name>dc</name>
                  <label>dc</label>
                  <lonLatEnvelope>
                     <gml:pos>-77.12033405913915 38.811607758478395</gml:pos>
                     <gml:pos>-76.99460865503322 39.00446717890099</gml:pos>
                  </lonLatEnvelope>
                  <domainSet>
                     <spatialDomain>
                        <gml:Envelope srsName="EPSG:4326">
                           <gml:pos>-77.12033405913915 38.811607758478395</gml:pos>
                           <gml:pos>-76.99460865503322 39.00446717890099</gml:pos>
                        </gml:Envelope>
                        <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3450">
                           <gml:pos>316393.8 4297995.0</gml:pos>
                           <gml:pos>326823.8 4319175.0</gml:pos>
                        </gml:Envelope>
                        <gml:RectifiedGrid dimension="2" srsName="urn:ogc:def:crs:EPSG::3450">
                           <gml:limits>
                              <gml:GridEnvelope>
                                 <gml:low>0 0</gml:low>              
                                 <gml:high>347 706</gml:high>            
                              </gml:GridEnvelope>
                           </gml:limits>
                           <gml:axisName>x</gml:axisName>
                           <gml:axisName>y</gml:axisName>
                           <gml:origin>
                              <gml:pos>316408.7856321839 4319160.021216407</gml:pos>
                           </gml:origin>
                           <gml:offsetVector>29.971264367816094 0.0</gml:offsetVector>
                           <gml:offsetVector>0.0 -29.957567185289957</gml:offsetVector>
                        </gml:RectifiedGrid>
                     </spatialDomain>
                  </domainSet>
                  <rangeSet>
                     <RangeSet>
                        <name>dc</name>
                        <label>dc</label>
                        <nullValues>
                           <singleValue>255</singleValue>
                        </nullValues>
                     </RangeSet>
                  </rangeSet>
                  <supportedCRSs>
                     <requestCRSs>urn:ogc:def:crs:EPSG::3450</requestCRSs>
                     <requestCRSs>EPSG:4326</requestCRSs>
                     <responseCRSs>urn:ogc:def:crs:EPSG::3450</responseCRSs>
                  </supportedCRSs>
                  <supportedFormats>
                     <formats>GeoTIFF</formats>
                  </supportedFormats>
                  <supportedInterpolations>
                     <interpolationMethod>nearest neighbor</interpolationMethod>
                     <interpolationMethod>bilinear</interpolationMethod>
                  </supportedInterpolations>
               </CoverageOffering>

Based on https://github.com/opengeospatial/ets-wcs10/blob/master/src/main/scripts/ctl/wcs.xml, the test uses the srsName value of the gml:Envelope of a coverage. However, there are 2 gml:Envelope elements, which is allowed according to https://schemas.opengis.net/wcs/1.0.0/describeCoverage.xsd. Hence, I suspect that the XSLT logic to determine the srsName cannot cope with this.

[dstenger]

Thank you for reporting.
Your findings are comprehensible.
Do you have a test instance we can use to reproduce the behavior?

[robinhoutmeyers]

Yes, you can reproduce the test issue with this service: https://demo.luciad.com/LuciadFusionPlatform/ogc/wcs/compliance_test?service=WCS&request=GetCapabilities&VERSION=1.0.0

[dstenger]

@robinhoutmeyers We created a pull request fixing this problem. At the same time, we realized that test wcs1-0-0:getcoverage_operations-getcoverage_response-encoding-supportedFormats is not listed in the generated report of TEAM Engine (might be related to #23). Did you have the same problem?

[robinhoutmeyers]

@dstenger No, it did appear (as a failure) in my report; I just double-checked this.

[dstenger]

@robinhoutmeyers Thanks for the feedback. We will release the fix in the coming days to Beta environment (as the test is not displayed in the report, it will not have a big effect on users; still, we will also update some dependencies).

Of course, you are welcome to already execute a test with branch issue#56.

[dstenger]

@robinhoutmeyers The fix was merged to master branch and installed on Beta environment.