diff --git a/test-suite/tests/ab-pack-009.xml b/test-suite/tests/ab-pack-009.xml
new file mode 100644
index 00000000..acca862b
--- /dev/null
+++ b/test-suite/tests/ab-pack-009.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<t:test expected="pass"
+        xmlns:t="http://xproc.org/ns/testsuite/3.0">
+   <t:info>
+      <t:title>pack 009</t:title>
+      <t:revision-history>
+         <t:revision>
+            <t:date>2025-02-01</t:date>
+            <t:author>
+               <t:name>Norm Tovey-Walsh</t:name>
+            </t:author>
+            <t:description xmlns="http://www.w3.org/1999/xhtml">
+               <p>Created test.</p>
+            </t:description>
+         </t:revision>
+      </t:revision-history>
+   </t:info>
+   <t:description xmlns="http://www.w3.org/1999/xhtml">
+      <p>Tests that setting an xml:base attribute changes the base URI.</p>
+   </t:description>
+   <t:pipeline>
+      <p:declare-step version="3.0"
+                      xmlns:p="http://www.w3.org/ns/xproc">
+         <p:output port="result"/>
+         <p:pack wrapper="wrapper" attributes="map{'pairs': true(), 'xml:base': 'http://example.com/'}">
+            <p:with-input port="source">
+               <doc1/>
+               <doc2/>
+            </p:with-input>
+            <p:with-input port="alternate">
+               <doc-a/>
+               <doc-b/>
+            </p:with-input>
+         </p:pack>
+         <p:for-each>
+           <p:identity>
+             <p:with-input select="p:document-properties(.)"/>
+           </p:identity>
+           <p:cast-content-type content-type="application/xml"/>
+         </p:for-each>
+         <p:wrap-sequence wrapper="sequence-wrapper"/>
+      </p:declare-step>
+   </t:pipeline>
+   <t:schematron>
+      <s:schema queryBinding="xslt2"
+                xmlns:s="http://purl.oclc.org/dsdl/schematron">
+        <s:ns prefix="fn" uri="http://www.w3.org/2005/xpath-functions"/>
+        <s:pattern>
+          <s:rule context="/">
+            <s:assert test="sequence-wrapper">The document root is not sequence-wrapper.</s:assert>
+            <s:assert test="sequence-wrapper/fn:map[1]/fn:string[@key='base-uri']
+                            = 'http://example.com/'">The first base URI is incorrect.</s:assert>
+            <s:assert test="sequence-wrapper/fn:map[2]/fn:string[@key='base-uri']
+                            = 'http://example.com/'">The second base URI is incorrect.</s:assert>
+          </s:rule>
+        </s:pattern>
+      </s:schema>
+   </t:schematron>
+</t:test>
diff --git a/test-suite/tests/ab-wrap-013.xml b/test-suite/tests/ab-wrap-013.xml
index f1dbc17a..2af9dc8d 100644
--- a/test-suite/tests/ab-wrap-013.xml
+++ b/test-suite/tests/ab-wrap-013.xml
@@ -7,7 +7,7 @@
          <t:revision>
             <t:date>2025-02-01</t:date>
             <t:author>
-               <t:name>Achim Berndzen</t:name>
+               <t:name>Norm Tovey-Walsh</t:name>
             </t:author>
             <t:description xmlns="http://www.w3.org/1999/xhtml">
                <p>Created test.</p>
diff --git a/test-suite/tests/ab-wrap-014.xml b/test-suite/tests/ab-wrap-014.xml
new file mode 100644
index 00000000..c8906903
--- /dev/null
+++ b/test-suite/tests/ab-wrap-014.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<t:test expected="pass"
+        xmlns:t="http://xproc.org/ns/testsuite/3.0">
+   <t:info>
+      <t:title>p:wrap 014</t:title>
+      <t:revision-history>
+         <t:revision>
+            <t:date>2025-02-01</t:date>
+            <t:author>
+               <t:name>Norm Tovey-Walsh</t:name>
+            </t:author>
+            <t:description xmlns="http://www.w3.org/1999/xhtml">
+               <p>Created test.</p>
+            </t:description>
+         </t:revision>
+      </t:revision-history>
+   </t:info>
+   <t:description xmlns="http://www.w3.org/1999/xhtml">
+      <p>Tests that setting an xml:base attribute changes the base URI.</p>
+   </t:description>
+   <t:pipeline>
+      <p:declare-step name="pipeline"
+                      version="3.0"
+                      xmlns:p="http://www.w3.org/ns/xproc">
+         <p:output port="result"/>
+         <p:wrap match="element"
+                 wrapper="wrapper"
+                 attributes="map{'wrapped': true(), 'xml:base': 'http://example.com/'}">
+            <p:with-input>
+               <doc>
+                  <not-matched/>
+                  <element/>
+                  <element/>
+                  <not-matched/>
+               </doc>
+            </p:with-input>
+         </p:wrap>
+         <p:viewport match="wrapper">
+           <p:identity>
+             <p:with-input select="p:document-properties(.)"/>
+           </p:identity>
+           <p:cast-content-type content-type="application/xml"/>
+         </p:viewport>
+      </p:declare-step>
+   </t:pipeline>
+   <t:schematron>
+      <s:schema queryBinding="xslt2"
+                xmlns:s="http://purl.oclc.org/dsdl/schematron"
+                xmlns="http://www.w3.org/1999/xhtml">
+        <s:ns prefix="fn" uri="http://www.w3.org/2005/xpath-functions"/>
+         <s:pattern>
+            <s:rule context="/">
+               <s:assert test="doc">Root element is not 'doc'.</s:assert>
+               <s:assert test="doc/*[2]/self::fn:map">Second child of 'doc' is not 'fn:map'.</s:assert>
+               <s:assert test="doc/*[2]/fn:string[@key='base-uri']
+                               = 'http://example.com/'">The first base URI is incorrect.</s:assert>
+               <s:assert test="doc/*[3]/self::fn:map">Third child of 'doc' is not 'fn:map'.</s:assert>
+               <s:assert test="doc/*[3]/fn:string[@key='base-uri']
+                               = 'http://example.com/'">The second base URI is incorrect.</s:assert>
+            </s:rule>
+         </s:pattern>
+      </s:schema>
+   </t:schematron>
+</t:test>
diff --git a/test-suite/tests/ab-wrap-sequence-017.xml b/test-suite/tests/ab-wrap-sequence-017.xml
new file mode 100644
index 00000000..19f451c3
--- /dev/null
+++ b/test-suite/tests/ab-wrap-sequence-017.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<t:test expected="pass"
+        xmlns:t="http://xproc.org/ns/testsuite/3.0">
+   <t:info>
+      <t:title>p:wrap-sequence 017</t:title>
+      <t:revision-history>
+         <t:revision>
+            <t:date>2025-02-01</t:date>
+            <t:author>
+               <t:name>Norm Tovey-Walsh</t:name>
+            </t:author>
+            <t:description xmlns="http://www.w3.org/1999/xhtml">
+               <p>Tests for p:wrap-sequence (Partly ported from 1.0)</p>
+            </t:description>
+         </t:revision>
+      </t:revision-history>
+   </t:info>
+   <t:description xmlns="http://www.w3.org/1999/xhtml">
+      <p>Tests that setting an xml:base attribute changes the base URI.</p>
+   </t:description>
+   <t:pipeline>
+      <p:declare-step name="pipeline"
+                      version="3.0"
+                      xmlns:p="http://www.w3.org/ns/xproc">
+         <p:output port="result"/>
+
+         <p:wrap-sequence wrapper="sequence"
+                          attributes="map{'seq': true(), 'xml:base': 'http://example.com/'}">
+           <p:with-input>
+             <doc/>
+             <doc/>
+             <doc/>
+           </p:with-input>
+         </p:wrap-sequence>
+         <p:identity>
+           <p:with-input select="p:document-properties(.)"/>
+         </p:identity>
+         <p:cast-content-type content-type="application/xml"/>
+      </p:declare-step>
+   </t:pipeline>
+   <t:schematron>
+      <s:schema queryBinding="xslt2"
+                xmlns:s="http://purl.oclc.org/dsdl/schematron"
+                xmlns="http://www.w3.org/1999/xhtml">
+        <s:ns prefix="fn" uri="http://www.w3.org/2005/xpath-functions"/>
+         <s:pattern>
+            <s:rule context="/">
+               <s:assert test="fn:map">Root element is not 'fn:map'.</s:assert>
+               <s:assert test="fn:map/fn:string[@key='base-uri']
+                               = 'http://example.com/'">The base URI is incorrect.</s:assert>
+            </s:rule>
+         </s:pattern>
+      </s:schema>
+   </t:schematron>
+</t:test>