This is a test wiki for the Wikibase Quality Constraints extension. It currently demonstrates constraint status and the distinction between constraint violations and constraint definition errors.
John F. Kennedy contains several statements that violate constraints. Most of the constraints are not mandatory, so the violations (warnings) are indicated with an “info” icon. One of the constraints on killed by, however, is mandatory, so those violations are indicated with an “alert” icon.
Nelson Mandela has a date of death statement with two constraint violations: one is mandatory, one isn’t. In addition, another constraint on that property is configured incorrectly: this is shown as an “advanced issue”, collapsed by default. On the property page of date of death, where the problem can actually be fixed, it is indicated with a more prominent “warning” icon. Notice also how the advanced issue is not shown on John F. Kennedy’s date of death statement, since it has no other violations.
Feel free to add your own test data! You can import items and properties from Wikidata on Special:ImportEntity.
For more information about constraints, see the property constraints portal on Wikidata.
- The documentation links in the gadget (the question mark icon) won’t work, since constraint item IDs are different on Wikidata.