w3c/xsdtests

W3C XML Schema 1.1 test suite

Beginner friendly Everything

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9 open issues indexed

Particles: particlesZ001 and XSD 1.0 Open

Difficulty 3/5 1-2 days Newbie friendliness 54/100

w3c/xsdtests#23 · 1 comment · Opened Jul 15, 2026
Tests with non-BMP characters in regexes Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

w3c/xsdtests#21 · 2 comments · Opened Jul 13, 2026
Tests relying on case-insensitive handling of URIs Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

w3c/xsdtests#18 · 2 comments · Opened Jul 13, 2026
xs:NOTATION as a member type of a union Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/xsdtests#12 · 2 comments · Opened Mar 31, 2026
Using a non-standard schema for the XML namespace Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

w3c/xsdtests#11 · 1 comment · Opened Dec 1, 2025
xsi:schemaLocation and XSD 1.1 schema composition Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c/xsdtests#10 · 2 comments · Opened Oct 25, 2023
xml and xmlns prefix and xmlns namespace name tests Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

w3c/xsdtests#9 · 2 comments · Opened Aug 23, 2023
Tests for override and redefines Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

w3c/xsdtests#8 · Opened Jul 26, 2023
Tests with dangling component references Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/xsdtests#3 · 3 comments · Opened Feb 25, 2020

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