How XSpec Works - xspec/xspec GitHub Wiki

Overview

The diagram below illustrates how the XSpec pipeline is executed:

XSpec pipeline

Jeni Tennison presented XSpec at XML Prague 2009:

Jeni Tennison's presentation at XML Prague 2009 - Test XSLT with XSpec

Compilation

How XSpec test suites are compiled into XSLT and XQuery is discussed in tutorial/under-the-hood/.