Validation¶
Validation allows you to check your data source and helps to identify features which do not conform to the test(s) you specify.
- Select a layer from the Layers View and go to
 - Select a test (*Is Valid Geometry for example*) from the list and click New to create the new test.
 - Customize your test and click Run
 
Each feature in the current layer will be validated to ensure it passes each test. Features which fail a test will be displayed in the Issues List, which appears if at least one feature fails a validation.
Available tests:
- Is Valid Geometry: the feature conforms to its own geometry specification
 - NameExists
 - Line Not Self Intersection: LineStrings do not intersect self
 - Line Not Self Overlapping: LineStrings do not overlap self
 - Line Without Dangles
 - UniqueFID: FID is unique