Assert Functions

TODO: check whether this list is up to date

The testing component has a helper library that provides several assert functions:

  • assert-true($supposed-truths as xs:boolean*)
  • assert-true($supposed-truths as xs:boolean*, $msg as item()*)
  • assert-false($supposed-falsehoods as xs:boolean*)
  • assert-equal($expected as item()*, $actual as item()*)
  • assert-not-equal($expected as item()*, $actual as item()*)
  • assert-exists($item as item()*)
  • assert-all-exist($count as xs:unsignedInt, $item as item()*)
  • assert-not-exists($item as item()*)
  • assert-at-least-one-equal($expected as item()*, $actual as item()*)
  • assert-same-values($expected as item()*, $actual as item()*) - Return true if and only if the two sequences have the same values, regardless of order.
  • assert-meets-minimum-threshold($expected as xs:decimal, $actual as xs:decimal+)
  • assert-meets-maximum-threshold($expected as xs:decimal, $actual as xs:decimal+)
  • assert-throws-error($function as xdmp:function)
  • assert-throws-error($function as xdmp:function, $error-code as xs:string?)
  • assert-throws-error($function as xdmp:function, $params as item()*, $error-code as xs:string?)
  • assert-http-get-status($url as xs:string, $options as element(xdmp-http:options), $status-code)

It is good practice to use a specific assert function. So rather than:

test:assert-equal(fn:true(), $actual)`

use this instead:


Using specific asserts makes your intentions more clear to developers who read your test code.