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diff --git a/misc/openlayers/tests/WPSProcess.html b/misc/openlayers/tests/WPSProcess.html
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+<html>
+<head>
+  <script src="OLLoader.js"></script>
+  <script type="text/javascript">
+
+  var wkt = new OpenLayers.Format.WKT();
+  var process;
+  var client = new OpenLayers.WPSClient({
+      servers: {
+          local: 'geoserver/wps'
+      }
+  });
+  client.servers.local.processDescription = {
+      'JTS:intersection': '<?xml version="1.0" encoding="UTF-8"?>' +
+          '<wps:ProcessDescriptions xml:lang="en" service="WPS" version="1.0.0" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0 http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink"><ProcessDescription wps:processVersion="1.0.0" statusSupported="true" storeSupported="true"><ows:Identifier>JTS:intersection</ows:Identifier><ows:Title>Returns the intersectoin between a and b (eventually an empty collection if there is no intersection)</ows:Title><ows:Abstract>Returns the intersectoin between a and b (eventually an empty collection if there is no intersection)</ows:Abstract><DataInputs><Input maxOccurs="1" minOccurs="1"><ows:Identifier>a</ows:Identifier><ows:Title>a</ows:Title><ows:Abstract>[undescribed]</ows:Abstract><ComplexData><Default><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format></Default><Supported><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format><Format><MimeType>text/xml; subtype=gml/2.1.2</MimeType></Format><Format><MimeType>application/wkt</MimeType></Format><Format><MimeType>application/gml-3.1.1</MimeType></Format><Format><MimeType>application/gml-2.1.2</MimeType></Format></Supported></ComplexData></Input><Input maxOccurs="1" minOccurs="1"><ows:Identifier>b</ows:Identifier><ows:Title>b</ows:Title><ows:Abstract>[undescribed]</ows:Abstract><ComplexData><Default><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format></Default><Supported><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format><Format><MimeType>text/xml; subtype=gml/2.1.2</MimeType></Format><Format><MimeType>application/wkt</MimeType></Format><Format><MimeType>application/gml-3.1.1</MimeType></Format><Format><MimeType>application/gml-2.1.2</MimeType></Format></Supported></ComplexData></Input></DataInputs><ProcessOutputs><Output><ows:Identifier>result</ows:Identifier><ows:Title>Process result</ows:Title><ComplexOutput><Default><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format></Default><Supported><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format><Format><MimeType>text/xml; subtype=gml/2.1.2</MimeType></Format><Format><MimeType>application/wkt</MimeType></Format><Format><MimeType>application/gml-3.1.1</MimeType></Format><Format><MimeType>application/gml-2.1.2</MimeType></Format></Supported></ComplexOutput></Output></ProcessOutputs></ProcessDescription></wps:ProcessDescriptions>' 
+  };
+  
+  function test_initialize(t) {
+      t.plan(1);
+      process = new OpenLayers.WPSProcess();
+      t.ok(process instanceof OpenLayers.WPSProcess, 'creates an instance');
+  }
+  
+  function test_describe(t) {
+      t.plan(2);
+      process = client.getProcess('local', 'JTS:intersection');
+      var log = [];
+      process.describe({
+          callback: function(description) { log.push(description); }
+      });
+      t.delay_call(0.1, function() {
+          t.eq(log.length, 1, 'callback called');
+          t.eq(log[0].identifier, 'JTS:intersection', 'callback called with correct description');
+      });
+  }
+  
+  function test_execute(t) {
+      t.plan(7);
+      
+      var log = [];
+      var originalPOST = OpenLayers.Request.POST;
+      OpenLayers.Request.POST = function(cfg) {
+          log.push(cfg);
+          cfg.success.call(cfg.scope, {responseText: ''});
+      }
+      
+      process = new OpenLayers.WPSProcess({
+          client: client,
+          server: 'local',
+          identifier: 'gs:splitPolygon'
+      });
+      process.description = {
+          dataInputs: [{
+              identifier: 'line',
+              complexData: {
+                  supported: {
+                      formats: {'application/wkt': true}
+                  }
+              }
+          }, {
+              identifier: 'polygon',
+              complexData: {
+                  supported: {
+                      formats: {'application/wkt': true}
+                  }
+              }
+          }],
+          processOutputs: [{
+              identifier: 'foo',
+              complexOutput: {
+                  supported: {
+                      formats: {'application/wkt': true}
+                  }
+              }
+          }]
+      };
+      var line = 'LINESTRING(117 22,112 18,118 13,115 8)';
+      var polygon = 'POLYGON((110 20,120 20,120 10,110 10,110 20),(112 17,118 18,118 16,112 15,112 17))';
+      var output = [];
+      function success(result) {
+          output.push(result);
+      }
+      // configured with output identifier
+      process.execute({
+          inputs: {
+              line: wkt.read(line),
+              polygon: wkt.read(polygon)
+          },
+          output: 'foo',
+          success: success
+      });
+      // configured without output identifier
+      process.execute({
+          inputs: {
+              line: wkt.read(line),
+              polygon: wkt.read(polygon)
+          },
+          success: success
+      });
+      
+      t.delay_call(0.1, function() {
+          t.eq(log.length, 2, 'Two execute requests sent');
+          t.eq(process.description.dataInputs[0].data.complexData.value, line, 'data for first input correct');
+          t.eq(process.description.dataInputs[0].data.complexData.mimeType, 'application/wkt', 'format for first input correct');
+          t.eq(process.description.responseForm.rawDataOutput.identifier, 'foo', 'correct identifier for responseForm');
+          t.eq(process.description.responseForm.rawDataOutput.mimeType, 'application/wkt', 'correct format for responseForm');
+          t.ok('foo' in output[0], 'process result contains output with correct identifier when configured with output');
+          t.ok('result' in output[1], 'process result contains output with correct identifier when configured without output');
+
+          OpenLayers.Request.POST = originalPOST;
+      });      
+  }
+  
+  function test_chainProcess(t) {
+      t.plan(5);
+      
+      var originalGET = OpenLayers.Request.GET;
+      OpenLayers.Request.GET = function(cfg) {
+          window.setTimeout(function() {
+              cfg.success.call(cfg.scope, {
+                  responseText: '<?xml version="1.0" encoding="UTF-8"?>' +
+                      '<wps:ProcessDescriptions xml:lang="en" service="WPS" version="1.0.0" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0 http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink"><ProcessDescription wps:processVersion="1.0.0" statusSupported="true" storeSupported="true"><ows:Identifier>JTS:buffer</ows:Identifier><ows:Title>Buffers a geometry using a certain distance</ows:Title><ows:Abstract>Buffers a geometry using a certain distance</ows:Abstract><DataInputs><Input maxOccurs="1" minOccurs="1"><ows:Identifier>geom</ows:Identifier><ows:Title>geom</ows:Title><ows:Abstract>The geometry to be buffered</ows:Abstract><ComplexData><Default><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format></Default><Supported><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format><Format><MimeType>text/xml; subtype=gml/2.1.2</MimeType></Format><Format><MimeType>application/wkt</MimeType></Format><Format><MimeType>application/gml-3.1.1</MimeType></Format><Format><MimeType>application/gml-2.1.2</MimeType></Format></Supported></ComplexData></Input><Input maxOccurs="1" minOccurs="1"><ows:Identifier>distance</ows:Identifier><ows:Title>distance</ows:Title><ows:Abstract>The distance (same unit of measure as the geometry)</ows:Abstract><LiteralData><ows:DataType>xs:double</ows:DataType><ows:AnyValue/></LiteralData></Input><Input maxOccurs="1" minOccurs="0"><ows:Identifier>quadrantSegments</ows:Identifier><ows:Title>quadrantSegments</ows:Title><ows:Abstract>Number of quadrant segments. Use &gt; 0 for round joins, 0 for flat joins, &lt; 0 for mitred joins</ows:Abstract><LiteralData><ows:DataType>xs:int</ows:DataType><ows:AnyValue/></LiteralData></Input><Input maxOccurs="1" minOccurs="0"><ows:Identifier>capStyle</ows:Identifier><ows:Title>capStyle</ows:Title><ows:Abstract>The buffer cap style, round, flat, square</ows:Abstract><LiteralData><ows:AllowedValues><ows:Value>Round</ows:Value><ows:Value>Flat</ows:Value><ows:Value>Square</ows:Value></ows:AllowedValues></LiteralData></Input></DataInputs><ProcessOutputs><Output><ows:Identifier>result</ows:Identifier><ows:Title>result</ows:Title><ComplexOutput><Default><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format></Default><Supported><Format><MimeType>text/xml; subtype=gml/3.1.1</MimeType></Format><Format><MimeType>text/xml; subtype=gml/2.1.2</MimeType></Format><Format><MimeType>application/wkt</MimeType></Format><Format><MimeType>application/gml-3.1.1</MimeType></Format><Format><MimeType>application/gml-2.1.2</MimeType></Format></Supported></ComplexOutput></Output></ProcessOutputs></ProcessDescription></wps:ProcessDescriptions>'
+              });
+          }, 100);
+      }
+      var originalPOST = OpenLayers.Request.POST;
+      OpenLayers.Request.POST = function(cfg) {
+          cfg.success.call(cfg.scope, {responseText: ''});
+      };
+
+      var intersect = client.getProcess('local', 'JTS:intersection');    
+      intersect.configure({
+          inputs: {
+              a: wkt.read(
+                     'LINESTRING(117 22,112 18,118 13,115 8)'
+                 ),
+              b: wkt.read(
+                     'POLYGON((110 20,120 20,120 10,110 10,110 20),(112 17,118 18,118 16,112 15,112 17))'
+                 )
+          }
+      });
+
+      // one buffer process to make sure chaining works
+      var buffer1 = client.getProcess('local', 'JTS:buffer');
+      // another buffer process to make sure that things work asynchronously
+      var buffer2 = client.getProcess('local', 'JTS:buffer');
+      var log = [];
+      buffer1.chainProcess = buffer2.chainProcess = function() {
+          log.push(this.executeCallbacks.length);
+          OpenLayers.WPSProcess.prototype.chainProcess.apply(this, arguments);
+      };
+      var done1 = done2 = false;
+      buffer1.execute({
+          inputs: {
+              geom: intersect.output(),
+              distance: 1
+          },
+          success: function(outputs) {
+              done1 = true;
+          }
+      });
+      buffer2.execute({
+          inputs: {
+              geom: intersect.output(),
+              distance: 2
+          },
+          success: function(outputs) {
+              done2 = true;
+          }
+      });
+      
+      t.delay_call(0.5, function() {
+          t.eq(log.length, 2, 'chainProcess called once for each process');
+          t.eq(log[0], 1, 'executeCallback queued to wait for 1 chained process');
+          t.eq(log[1], 1, 'executeCallback queued to wait for 1 chained process');
+          t.eq(done1, true, 'execute for buffer1 process successfully completed');
+          t.eq(done2, true, 'execute for buffer2 process successfully completed');
+
+          OpenLayers.Request.GET = originalGET;
+          OpenLayers.Request.POST = originalPOST;
+      });
+  }
+
+  </script>
+</head>
+<body>
+</body>
+</html>