SilkPerformer Citrix Tutorial - Borland Technical Publications

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2 CREATING TEST SCRIPTS Verification & Parsing via OCR Adding OCR parsing functions Understanding OCR verification & parsing 9 In the Severity portion of the dialog box, specify the severity that is to be raised if the verification returns a negative result (Error, Warning, Informational, or Custom). 10 Click OK. 11 A confirmation dialog appears. Click OK to add the OCR verification function to your Citrix test script. Procedure To generate an OCR parsing function: 1 From SilkPerformer record a Citix session as described in the “Creating a Load Test Script” section of this chapter. 2 Run a TryScript run, with the Animation checkbox selected on the TryScript dialog. This opens TrueLog Explorer. 3 When the TryScript run is complete, select the API node that includes the bitmap screengrab of the screen on which you’d like to parse text. 4 Click and drag your cursor onscreen to select the screen region that includes the text you would like to parse. 5 Right-click in the selected area and select Parse Text from the context menu. 6 The Insert Parsing Function dialog offers parameters by which the parsing function can be configured. Though the default settings will likely be correct, you can adjust: - Parameter name - Enter the name of the parameter that is to receive the result of the parsing function. - Informational statement insertion - Select Print statement to insert an informational Print statement into the script after the Web page call. This writes the result of the parsing function to SilkPerformer's Virtual User Output window. Select Writeln statement (“write line” statement) to write the parsed value to an output file to facilitate debugging (in addition to writing the value to the Virtual User Output window as a Print statement does). Because generating output files alters load-test time measurements, these files should only be used for debugging purposes and should not be generated for full load tests. 7 Click OK. 8 A confirmation dialog appears. Click OK to add the OCR parsing function to your Citrix test script. String verification via optical character recognition (OCR) is achieved using CitrixVerifyText API calls. These functions are inserted via TrueLog Explorer 24 SilkPerformer Citrix Tutorial
2 CREATING TEST SCRIPTS Verification & Parsing via OCR during script customization. CitrixVerifyText functions compare text strings in replay bitmaps to determine if they are identical. CitrixParseText functions are available for parsing text. These API calls work in the same way that standard parsing functions work (Web, database, etc). Optical character recognition relies on pattern databases to recognize varying fonts and text styles. Font databases must be generated before OCR can be run. See “Citrix System Settings for OCR” for details. Only Citrix TrueLogs show verification and parsing API calls in the tree view. With other TrueLog modes (Web, database, etc), new API nodes are not added to the tree view. Note It is absolutely important to perform OCR operations on stable content, because when used on a frequently changing screen it is only a matter of timing which image to use for the conversion, which results in accidental results. When synchronizing on window events it is possible that the screen refresh is slightly delayed, which again results in timing dependent outcome. Therefore it is a good practice to either script a wait or a CitrixWaitForScreen function call before all OCR verification/ parsing functions. SilkPerformer Citrix Tutorial 25
Page 1 and 2: Citrix Tutorial SilkPerformer®2010
Page 3 and 4: Contents Introduction 1 Overview .
Page 5 and 6: Introduction About these tutorials
Page 7 and 8: INTRODUCTION Support for Citrix Ter
Page 9 and 10: INTRODUCTION Support for Citrix Ter
Page 11 and 12: 1 Defining 1Chapter Load Test Proje
Page 13 and 14: 1 DEFINING LOAD TEST PROJECTS Defin
Page 15 and 16: 2 Creating 2Chapter Test Scripts In
Page 17 and 18: 2 CREATING TEST SCRIPTS Creating a
Page 23 and 24: 2 CREATING TEST SCRIPTS Screen Sync
Page 25 and 26: 2 CREATING TEST SCRIPTS Screen Sync
Page 27: 2 CREATING TEST SCRIPTS Verificatio
Page 31 and 32: 2 CREATING TEST SCRIPTS Trying Out
Page 45 and 46: 3 Customizing 3Chapter User Data In
Page 47 and 48: 3 CUSTOMIZING USER DATA Customizing
Page 53 and 54: 4 Testing 4Chapter Citrix Web Inter
Page 55 and 56: 4 TESTING CITRIX WEB INTERFACE SESS
Page 57 and 58: 5 Citrix 5Chapter Project & System
Page 59 and 60: 5 CITRIX PROJECT & SYSTEM SETTINGS
Page 65 and 66: 6 Best 6Chapter Practices Introduct
Page 67 and 68: 6 BEST PRACTICES Test Preparation U
Page 69 and 70: 6 BEST PRACTICES Test Preparation I
Page 71 and 72: 6 BEST PRACTICES Recording Use Case
Page 73 and 74: 6 BEST PRACTICES Recording Use Case
Page 75 and 76: 6 BEST PRACTICES Troubleshooting Sc
Page 77 and 78: 6 BEST PRACTICES Issues Specific to
Page 79 and 80:
6 BEST PRACTICES Issues Specific to
Page 81 and 82:
Index A Adding timers 70 Adding ver
Page 83 and 84:
SilkPerformer Citrix Tutorial 79
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SilkPerformer Citrix Tutorial - Borland Technical Publications

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