Guide
XPath Testing Guide
Write small XPath assertions for XML fixtures and inspect node versus scalar results.
Written by DevPouch Editorial TeamSource-review record dated 2026-10-02; see the scope and method below.
Reviewed against the listed primary reference and synthetic local workflow; this is not a runtime or security certification.
Related tools
The debugging problem
XPath tests are easier to trust when each expression has a clear context node, namespace mapping, and expected cardinality.
A practical sequence
- Validate the XML first.
- Bind prefixes used in the expression.
- Start with one simple absolute or descendant path.
- Assert node count and selected text or attribute values separately.
Synthetic example
XML: <r><item id="a"/><item id="b"/></r>
XPath: //item/@id
Expected values: a, bA failure to watch for
An expression returning an empty node set is not automatically a parser error. Check the context node and namespaces before changing the document.
Limits and interpretation
Browser document.evaluate implements XPath 1.0, not XPath 2.0 or XQuery.
References
FAQ
What should I verify first when using this xpath testing guide workflow?
Validate the XML first.
What can this workflow not prove?
Browser document.evaluate implements XPath 1.0, not XPath 2.0 or XQuery.