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Testing spatial methods in SQL Server 11.0 Branislav Uzelac Nemanja Matkovic Microsoft Development Center Serbia Danica Porobic EPFL Lausanne, Switzerland.

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Presentation on theme: "Testing spatial methods in SQL Server 11.0 Branislav Uzelac Nemanja Matkovic Microsoft Development Center Serbia Danica Porobic EPFL Lausanne, Switzerland."— Presentation transcript:

1 Testing spatial methods in SQL Server 11.0 Branislav Uzelac Nemanja Matkovic Microsoft Development Center Serbia Danica Porobic EPFL Lausanne, Switzerland

2 Introduction to Spatial Geometry Geography

3 Testing strategy at a glance Input Data Testing methods Verification methods World data Reference library Static cases Generated Data “Exact equal” Identity cases Transformed World data “Approximate equal” Repro minimization Minimize File a bug!

4 Data generators Objects tailored for specific aspects of testing

5 Data generators

6 Testing strategy Mathematical identities AB

7 Minimization of bug repro steps Large objects may have thousands of points Hard to analyze and pinpoint the problem Solution: minimize!

8 Minimization of bug repro steps Success rate

9 Questions? More on spatial: /us/spatial-data.aspx /us/spatial-data.aspx Contact authors – Branislav Uzelac, – Nemanja Matkovic, – Danica Porobic,


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