From edcd253a99b55e325a68f51c11aba4784256c8c4 Mon Sep 17 00:00:00 2001
From: Romain Deltour <rdeltour@gmail.com>
Date: Thu, 25 Feb 2021 23:58:24 +0100
Subject: [PATCH] feat: check required cardinality of meta properties

The cardinality of refining properties defined with the `meta` element
is defined in Appendix C "Meta Properties Vocabulary":
  https://www.w3.org/publishing/epub32/epub-packages.html#app-meta-property-vocab

Summary:
- add schematron rules to check that properties defined as
"zero or one" are not defined more than once
- add test for all properties
- rename some existing tests for consistency

Fixes #1121
---
 .../adobe/epubcheck/schema/30/package-30.sch  | 141 +++++++++++++----
 ...data-meta-authority-cardinality-error.opf} |   0
 ...metadata-meta-authority-no-term-error.opf} |   0
 ...eta-authority-refines-disallowed-error.opf |  17 ++
 ....opf => metadata-meta-authority-valid.opf} |   0
 ...meta-collection-type-cardinality-error.opf |  22 +++
 ...ata-meta-display-seq-cardinality-error.opf |  19 +++
 ...etadata-meta-file-as-cardinality-error.opf |  19 +++
 .../metadata-meta-file-as-valid.opf           |  18 +++
 ...-meta-group-position-cardinality-error.opf |  19 +++
 .../metadata-meta-group-position-valid.opf    |  18 +++
 ...meta-identifier-type-cardinality-error.opf |  18 +++
 ...entifier-type-refines-disallowed-error.opf |  17 ++
 ...entifier-type-refines-identifier-valid.opf |  17 ++
 ...a-identifier-type-refines-source-valid.opf |  18 +++
 .../metadata-meta-role-cardinality-error.opf  |  21 +++
 .../metadata-meta-scheme-list-error.opf       |   2 +-
 .../metadata-meta-scheme-unknown-error.opf    |   2 +-
 .../metadata-meta-scheme-valid.opf            |   2 +-
 ...adata-meta-source-of-cardinality-error.opf |  19 +++
 ... metadata-meta-term-cardinality-error.opf} |   0
 ...metadata-meta-term-no-authority-error.opf} |   0
 ...ata-meta-term-refines-disallowed-error.opf |  17 ++
 .../metadata-meta-term-valid.opf              |  19 +++
 ...data-meta-title-type-cardinality-error.opf |  18 +++
 ...ta-title-type-refines-disallowed-error.opf |  17 ++
 .../metadata-meta-title-type-valid.opf        |  17 ++
 .../resources/epub3/package-document.feature  | 148 ++++++++++++++----
 28 files changed, 560 insertions(+), 65 deletions(-)
 rename src/test/resources/epub3/files/package-document/{metadata-subject-authority-multiple-error.opf => metadata-meta-authority-cardinality-error.opf} (100%)
 rename src/test/resources/epub3/files/package-document/{metadata-subject-authority-no-term-error.opf => metadata-meta-authority-no-term-error.opf} (100%)
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-authority-refines-disallowed-error.opf
 rename src/test/resources/epub3/files/package-document/{metadata-subject-authority-valid.opf => metadata-meta-authority-valid.opf} (100%)
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-collection-type-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-display-seq-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-file-as-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-file-as-valid.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-group-position-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-group-position-valid.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-disallowed-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-identifier-valid.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-source-valid.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-role-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-source-of-cardinality-error.opf
 rename src/test/resources/epub3/files/package-document/{metadata-subject-term-multiple-error.opf => metadata-meta-term-cardinality-error.opf} (100%)
 rename src/test/resources/epub3/files/package-document/{metadata-subject-term-no-authority-error.opf => metadata-meta-term-no-authority-error.opf} (100%)
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-term-refines-disallowed-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-term-valid.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-title-type-cardinality-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-title-type-refines-disallowed-error.opf
 create mode 100644 src/test/resources/epub3/files/package-document/metadata-meta-title-type-valid.opf

diff --git a/src/main/resources/com/adobe/epubcheck/schema/30/package-30.sch b/src/main/resources/com/adobe/epubcheck/schema/30/package-30.sch
index 02a5d1859..2383716a4 100644
--- a/src/main/resources/com/adobe/epubcheck/schema/30/package-30.sch
+++ b/src/main/resources/com/adobe/epubcheck/schema/30/package-30.sch
@@ -3,6 +3,8 @@
 
     <ns uri="http://www.idpf.org/2007/opf" prefix="opf"/>
     <ns uri="http://purl.org/dc/elements/1.1/" prefix="dc"/>
+    
+    <!-- Unique ID checks -->
 
     <pattern id="opf.uid">
         <rule context="opf:package[@unique-identifier]">
@@ -27,25 +29,9 @@
                 >dcterms:modified illegal syntax (expecting: "CCYY-MM-DDThh:mm:ssZ")</assert>
         </rule>
     </pattern>
-
-    <pattern id="opf.refines.relative">
-        <rule context="*[@refines and starts-with(normalize-space(@refines),'#')][not(ancestor::opf:collection)]">
-        	<let name="refines-target-id" value="substring(normalize-space(@refines), 2)"/>
-            <assert test="//*[normalize-space(@id)=$refines-target-id]">@refines missing target id: "<value-of
-                    select="$refines-target-id"/>"</assert>
-        </rule>
-    </pattern>
-
-    <pattern id="opf.meta.source-of">
-        <rule context="opf:meta[normalize-space(@property)='source-of']">
-            <assert test="normalize-space(.) eq 'pagination'">The "source-of" property must have the
-                value "pagination"</assert>
-            <assert
-            	test="exists(@refines) and exists(../dc:source[normalize-space(@id)=substring(normalize-space(current()/@refines),2)])"
-                >The "source-of" property must refine a "dc:source" element.</assert>
-        </rule>
-    </pattern>
-
+    
+    <!-- Link checks -->
+    
     <pattern id="opf.link.record">
         <rule context="opf:link[tokenize(@rel,'\s+')='record']">
             <assert test="exists(@media-type)">The type of "record" references must be identifiable
@@ -61,6 +47,35 @@
             <assert test="exists(@refines)">"voicing" links must have a "refines" attribute.</assert>
         </rule>
     </pattern>
+    
+    <!-- Metadata checks -->
+
+    <pattern id="opf.refines.relative">
+        <rule context="*[@refines and starts-with(normalize-space(@refines),'#')][not(ancestor::opf:collection)]">
+        	<let name="refines-target-id" value="substring(normalize-space(@refines), 2)"/>
+            <assert test="//*[normalize-space(@id)=$refines-target-id]">@refines missing target id: "<value-of
+                    select="$refines-target-id"/>"</assert>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.dc.subject.authority-term">
+        <rule context="opf:metadata/dc:subject">
+            <let name="id" value="normalize-space(./@id)"/>
+            <let name="authority" value="//opf:meta[normalize-space(@property)='authority'][substring(normalize-space(@refines), 2) = $id]"/>
+            <let name="term" value="//opf:meta[normalize-space(@property)='term'][substring(normalize-space(@refines), 2) = $id]"/>
+            <report test="(count($authority) = 1 and count($term) = 0)">A term property must be associated with a dc:subject when an authority is specified</report>
+            <report test="(count($authority) = 0 and count($term) = 1)">An authority property must be associated with a dc:subject when a term is specified</report>
+            <report test="(count($authority) &gt; 1 or count($term) &gt; 1)">Only one pair of authority and term properties can be associated with a dc:subject</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.authority">
+        <rule context="opf:meta[normalize-space(@property)='authority']">
+            <assert test="exists(../dc:subject[concat('#',normalize-space(@id)) = normalize-space(current()/@refines)])"
+                >Property "authority" must refine a "subject" property.</assert>
+            <!-- Cardinality is checked in opf.dc.subject.authority-term -->
+        </rule>
+    </pattern>
 
     <pattern id="opf.meta.belongs-to-collection">
     	<rule context="opf:meta[normalize-space(@property)='belongs-to-collection']">
@@ -70,15 +85,86 @@
                 properties.</assert>
         </rule>
     </pattern>
-
+    
     <pattern id="opf.meta.collection-type">
         <rule context="opf:meta[normalize-space(@property)='collection-type']">
             <assert
             	test="exists(../opf:meta[normalize-space(@id)=substring(normalize-space(current()/@refines),2)][normalize-space(@property)='belongs-to-collection'])"
                 >Property "collection-type" must refine a "belongs-to-collection" property.</assert>
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "collection-type" cannot be declared more than once to refine the same "belongs-to-collection" expression.</report>
         </rule>
     </pattern>
-
+    
+    <pattern id="opf.meta.display-seq">
+        <rule context="opf:meta[normalize-space(@property)='display-seq']">
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "display-seq" cannot be declared more than once to refine the same expression.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.file-as">
+        <rule context="opf:meta[normalize-space(@property)='file-as']">
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "file-as" cannot be declared more than once to refine the same expression.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.group-position">
+        <rule context="opf:meta[normalize-space(@property)='group-position']">
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "group-position" cannot be declared more than once to refine the same expression.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.identifier-type">
+        <rule context="opf:meta[normalize-space(@property)='identifier-type']">
+            <assert test="exists(../(dc:identifier|dc:source)[concat('#',normalize-space(@id)) = normalize-space(current()/@refines)])"
+                >Property "identifier-type" must refine an "identifier" or "source" property.</assert>
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "identifier-type" cannot be declared more than once to refine the same expression.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.role">
+        <rule context="opf:meta[normalize-space(@property)='role']">
+            <assert test="exists(../(dc:creator|dc:contributor)[concat('#',normalize-space(@id)) = normalize-space(current()/@refines)])"
+                >Property "role" must refine a "creator" or "contributor" property.</assert>
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "role" cannot be declared more than once to refine a single "creator" or "contributor" property.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.source-of">
+        <rule context="opf:meta[normalize-space(@property)='source-of']">
+            <assert test="normalize-space(.) eq 'pagination'">The "source-of" property must have the
+                value "pagination"</assert>
+            <assert
+                test="exists(@refines) and exists(../dc:source[normalize-space(@id)=substring(normalize-space(current()/@refines),2)])"
+                >The "source-of" property must refine a "source" property.</assert>
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "source-of" cannot be declared more than once to refine the same "source" expression.</report>
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.term">
+        <rule context="opf:meta[normalize-space(@property)='term']">
+            <assert test="exists(../dc:subject[concat('#',normalize-space(@id)) = normalize-space(current()/@refines)])"
+                >Property "term" must refine a "subject" property.</assert>
+            <!-- Cardinality is checked in opf.dc.subject.authority-term -->
+        </rule>
+    </pattern>
+    
+    <pattern id="opf.meta.title-type">
+        <rule context="opf:meta[normalize-space(@property)='title-type']">
+            <assert test="exists(../dc:title[concat('#',normalize-space(@id)) = normalize-space(current()/@refines)])"
+                >Property "title-type" must refine a "title" property.</assert>
+            <report test="exists(preceding-sibling::opf:meta[normalize-space(@property) = normalize-space(current()/@property)][normalize-space(@refines) = normalize-space(current()/@refines)])"
+                >Property "title-type" cannot be declared more than once to refine the same "title" expression.</report>
+        </rule>
+    </pattern>
+    
+    <!-- Item checks -->
 
     <pattern id="opf.itemref">
         <rule context="opf:spine/opf:itemref[@idref]">
@@ -162,6 +248,8 @@
                 (number of "cover-image" items: <value-of select="count($item)"/>).</assert>
         </rule>
     </pattern>
+    
+    <!-- Rendition properties checks -->
 
     <pattern id="opf.rendition.globals">
         <rule context="opf:package/opf:metadata">
@@ -337,17 +425,6 @@
 		</rule>
 	</pattern>
 	
-	<pattern id="opf.subject.authority-term">
-		<rule context="opf:metadata/dc:subject">
-			<let name="id" value="normalize-space(./@id)"/>
-			<let name="authority" value="//opf:meta[normalize-space(@property)='authority'][substring(normalize-space(@refines), 2) = $id]"/>
-			<let name="term" value="//opf:meta[normalize-space(@property)='term'][substring(normalize-space(@refines), 2) = $id]"/>
-			<report test="(count($authority) = 1 and count($term) = 0)">A term property must be associated with a dc:subject when an authority is specified</report>
-			<report test="(count($authority) = 0 and count($term) = 1)">An authority property must be associated with a dc:subject when a term is specified</report>
-			<report test="(count($authority) &gt; 1 or count($term) &gt; 1)">Only one pair of authority and term properties can be associated with a dc:subject</report>
-		</rule>
-	</pattern>
-	
 	<!-- EPUB 3.2 Deprecated Features -->
 	
 	<pattern id="opf.bindings.deprecated">
diff --git a/src/test/resources/epub3/files/package-document/metadata-subject-authority-multiple-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-authority-cardinality-error.opf
similarity index 100%
rename from src/test/resources/epub3/files/package-document/metadata-subject-authority-multiple-error.opf
rename to src/test/resources/epub3/files/package-document/metadata-meta-authority-cardinality-error.opf
diff --git a/src/test/resources/epub3/files/package-document/metadata-subject-authority-no-term-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-authority-no-term-error.opf
similarity index 100%
rename from src/test/resources/epub3/files/package-document/metadata-subject-authority-no-term-error.opf
rename to src/test/resources/epub3/files/package-document/metadata-meta-authority-no-term-error.opf
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-authority-refines-disallowed-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-authority-refines-disallowed-error.opf
new file mode 100644
index 000000000..f8af3d8ad
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-authority-refines-disallowed-error.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title id="title">Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta refines="#title" property="authority">something</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-subject-authority-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-authority-valid.opf
similarity index 100%
rename from src/test/resources/epub3/files/package-document/metadata-subject-authority-valid.opf
rename to src/test/resources/epub3/files/package-document/metadata-meta-authority-valid.opf
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-collection-type-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-collection-type-cardinality-error.opf
new file mode 100644
index 000000000..55821458f
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-collection-type-cardinality-error.opf
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <!-- Collection metadata -->
+        <meta property="belongs-to-collection" id="c01">A Collection</meta>
+        <meta property="belongs-to-collection" id="c02" refines="#c01">A Super Collection</meta>
+        <meta refines="#c01" property="collection-type">set</meta>
+        <meta refines="#c01" property="collection-type">set</meta>
+        <meta refines="#c02" property="collection-type">set</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-display-seq-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-display-seq-cardinality-error.opf
new file mode 100644
index 000000000..00bdc504b
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-display-seq-cardinality-error.opf
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:creator id="creator">Me</dc:creator>
+        <meta refines="#creator" property="display-seq">1</meta>
+        <meta refines="#creator" property="display-seq">2</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-file-as-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-file-as-cardinality-error.opf
new file mode 100644
index 000000000..8f250d4f4
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-file-as-cardinality-error.opf
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:creator id="creator">Me</dc:creator>
+        <meta refines="#creator" property="file-as">Me</meta>
+        <meta refines="#creator" property="file-as">Also Me</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-file-as-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-file-as-valid.opf
new file mode 100644
index 000000000..49044bd72
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-file-as-valid.opf
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:creator id="creator">Me</dc:creator>
+        <meta refines="#creator" property="file-as">Me</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-group-position-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-group-position-cardinality-error.opf
new file mode 100644
index 000000000..f7b89069c
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-group-position-cardinality-error.opf
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="belongs-to-collection" id="c01">collection</meta>
+        <meta refines="#c01" property="group-position">1</meta>
+        <meta refines="#c01" property="group-position">2</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-group-position-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-group-position-valid.opf
new file mode 100644
index 000000000..9dfc26921
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-group-position-valid.opf
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="belongs-to-collection" id="c01">collection</meta>
+        <meta refines="#c01" property="group-position">1</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-cardinality-error.opf
new file mode 100644
index 000000000..78ead1e2b
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-cardinality-error.opf
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="identifier-type" refines="#uid" scheme="onix:codelist5">06</meta>
+        <meta property="identifier-type" refines="#uid" scheme="onix:codelist5">15</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-disallowed-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-disallowed-error.opf
new file mode 100644
index 000000000..9555ab721
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-disallowed-error.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title id="title">Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="identifier-type" refines="#title" scheme="onix:codelist5">06</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-identifier-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-identifier-valid.opf
new file mode 100644
index 000000000..fe916f1d7
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-identifier-valid.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="identifier-type" refines="#uid" scheme="onix:codelist5">06</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-source-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-source-valid.opf
new file mode 100644
index 000000000..e2f4e209d
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-identifier-type-refines-source-valid.opf
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:source id="source">urn:isbn:0000000000000</dc:source>
+        <meta property="identifier-type" refines="#source" scheme="onix:codelist5">06</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-role-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-role-cardinality-error.opf
new file mode 100644
index 000000000..cd542d640
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-role-cardinality-error.opf
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:creator id="creator1">Jane Doe</dc:creator>
+        <dc:creator id="creator2">John Doe</dc:creator>
+        <meta property="role" refines="#creator1">aut</meta>
+        <meta property="role" refines="#creator1">edt</meta>
+        <meta property="role" refines="#creator2">aut</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-list-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-list-error.opf
index 840f67e0c..eec93b5ea 100644
--- a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-list-error.opf
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-list-error.opf
@@ -6,7 +6,7 @@
         <dc:title>Title</dc:title>
         <dc:language>en</dc:language>
         <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
-		    <meta property="identifier-type" scheme="onix:codelist5 invalid">06</meta>
+        <meta property="identifier-type" refines="#uid" scheme="onix:codelist5 invalid">06</meta>
     </metadata>
     <manifest>
         <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-unknown-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-unknown-error.opf
index 5ed713500..e3fad95d7 100644
--- a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-unknown-error.opf
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-unknown-error.opf
@@ -6,7 +6,7 @@
         <dc:title>Title</dc:title>
         <dc:language>en</dc:language>
         <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
-        <meta property="identifier-type" scheme="codelist5">06</meta>
+        <meta property="identifier-type" refines="#uid" scheme="codelist5">06</meta>
     </metadata>
     <manifest>
         <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-valid.opf
index 86f84b0a7..fe916f1d7 100644
--- a/src/test/resources/epub3/files/package-document/metadata-meta-scheme-valid.opf
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-scheme-valid.opf
@@ -6,7 +6,7 @@
         <dc:language>en</dc:language>
         <dc:identifier id="uid">NOID</dc:identifier>
         <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
-        <meta property="identifier-type" scheme="onix:codelist5">06</meta>
+        <meta property="identifier-type" refines="#uid" scheme="onix:codelist5">06</meta>
     </metadata>
     <manifest>
         <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-source-of-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-source-of-cardinality-error.opf
new file mode 100644
index 000000000..fe963648b
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-source-of-cardinality-error.opf
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:source id="src-id">urn:isbn:9780375704024</dc:source>
+        <meta refines="#src-id" property="source-of">pagination</meta>
+        <meta refines="#src-id" property="source-of">pagination</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-subject-term-multiple-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-term-cardinality-error.opf
similarity index 100%
rename from src/test/resources/epub3/files/package-document/metadata-subject-term-multiple-error.opf
rename to src/test/resources/epub3/files/package-document/metadata-meta-term-cardinality-error.opf
diff --git a/src/test/resources/epub3/files/package-document/metadata-subject-term-no-authority-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-term-no-authority-error.opf
similarity index 100%
rename from src/test/resources/epub3/files/package-document/metadata-subject-term-no-authority-error.opf
rename to src/test/resources/epub3/files/package-document/metadata-meta-term-no-authority-error.opf
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-term-refines-disallowed-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-term-refines-disallowed-error.opf
new file mode 100644
index 000000000..ecc6e15dc
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-term-refines-disallowed-error.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title id="title">Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta refines="#title" property="term">something</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-term-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-term-valid.opf
new file mode 100644
index 000000000..3ef1ad0f2
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-term-valid.opf
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <dc:subject id="subject01">Something</dc:subject>
+        <meta refines="#subject01" property="authority">https://example.org/authority</meta>
+        <meta refines="#subject01" property="term">something</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-title-type-cardinality-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-cardinality-error.opf
new file mode 100644
index 000000000..a63b22cf6
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-cardinality-error.opf
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title id="title">Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="title-type" refines="#title">main</meta>
+        <meta property="title-type" refines="#title">short</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-title-type-refines-disallowed-error.opf b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-refines-disallowed-error.opf
new file mode 100644
index 000000000..0662cf184
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-refines-disallowed-error.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title>Title</dc:title>
+        <dc:language id="language">en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="title-type" refines="#language">main</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/files/package-document/metadata-meta-title-type-valid.opf b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-valid.opf
new file mode 100644
index 000000000..50123c605
--- /dev/null
+++ b/src/test/resources/epub3/files/package-document/metadata-meta-title-type-valid.opf
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="uid"
+    xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <metadata>
+        <dc:title id="title">Title</dc:title>
+        <dc:language>en</dc:language>
+        <dc:identifier id="uid">NOID</dc:identifier>
+        <meta property="dcterms:modified">2019-01-01T12:00:00Z</meta>
+        <meta property="title-type" refines="#title">main</meta>
+    </metadata>
+    <manifest>
+        <item id="t001" href="contents.xhtml" properties="nav" media-type="application/xhtml+xml"/>
+    </manifest>
+    <spine>
+        <itemref idref="t001"/>
+    </spine>
+</package>
diff --git a/src/test/resources/epub3/package-document.feature b/src/test/resources/epub3/package-document.feature
index a7528e07d..c5e3a740e 100644
--- a/src/test/resources/epub3/package-document.feature
+++ b/src/test/resources/epub3/package-document.feature
@@ -156,34 +156,6 @@ Feature: EPUB 3 ▸ Packages ▸ Package Document Checks
   Scenario: 'dc:source' valid values are allowed 
     When checking file 'metadata-source-valid.opf'
     Then no errors or warnings are reported
-    
-  Scenario: 'dc:subject' can be refined with a code term and authority
-  	When checking file 'metadata-subject-authority-valid.opf'
-  	Then no errors or warnings are reported
-  	
-  Scenario: 'dc:subject' authority must be associated to a term
-  	When checking file 'metadata-subject-authority-no-term-error.opf'
-  	Then error RSC-005 is reported
-  	And the message contains "A term property must be associated"
-  	And no other errors or warnings are reported
-  	
-  Scenario: 'dc:subject' authority must not be defined more than once
-  	When checking file 'metadata-subject-authority-multiple-error.opf'
-  	Then error RSC-005 is reported
-  	And the message contains "Only one pair of authority and term properties"
-  	And no other errors or warnings are reported
-  	
-  Scenario: 'dc:subject' term must be associated to an authority
-  	When checking file 'metadata-subject-term-no-authority-error.opf'
-  	Then error RSC-005 is reported
-  	And the message contains "An authority property must be associated"
-  	And no other errors or warnings are reported
-  	
-  Scenario: 'dc:subject' term must not be defined more than once
-  	When checking file 'metadata-subject-term-multiple-error.opf'
-  	Then error RSC-005 is reported
-  	And the message contains "Only one pair of authority and term properties"
-  	And no other errors or warnings are reported
   
   Scenario: 'dc:type' valid values are allowed 
     When checking file 'metadata-type-valid.opf'
@@ -656,6 +628,28 @@ Feature: EPUB 3 ▸ Packages ▸ Package Document Checks
 
   # C. Meta Properties Vocabulary
 
+  Scenario: 'authority' metadata can refine a subject expression
+  	When checking file 'metadata-meta-authority-valid.opf'
+  	Then no errors or warnings are reported
+
+  Scenario: 'authority' metadata can only refine a subject expression
+  	When checking file 'metadata-meta-authority-refines-disallowed-error.opf'
+  	Then error RSC-005 is reported
+    And the message contains 'Property "authority" must refine a "subject" property'
+  	Then no errors or warnings are reported
+
+  Scenario: 'authority' metadata must be associated to a term
+  	When checking file 'metadata-meta-authority-no-term-error.opf'
+  	Then error RSC-005 is reported
+  	And the message contains "A term property must be associated"
+  	And no other errors or warnings are reported
+
+  Scenario: 'authority' metadata must not be defined more than once
+  	When checking file 'metadata-meta-authority-cardinality-error.opf'
+  	Then error RSC-005 is reported
+  	And the message contains "Only one pair of authority and term properties"
+  	And no other errors or warnings are reported
+
   Scenario: 'belongs-to-collection' metadata can identify the publication’s collection
     When checking file 'metadata-meta-collection-valid.opf'
     Then no errors or warnings are reported
@@ -677,16 +671,66 @@ Feature: EPUB 3 ▸ Packages ▸ Package Document Checks
     Then error RSC-005 is reported
     And the message contains 'Property "collection-type" must refine a "belongs-to-collection" property'
     And no other errors or warnings are reported
+
+  Scenario: 'collection-type' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-collection-type-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"collection-type" cannot be declared more than once'
+    And no other errors or warnings are reported
   
   Scenario: 'display-seq' metadata is allowed 
     When checking file 'metadata-meta-display-seq-valid.opf'
     Then no errors or warnings are reported
+
+  Scenario: 'display-seq' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-display-seq-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"display-seq" cannot be declared more than once'
+    And no other errors or warnings are reported
+  
+  Scenario: 'file-as' metadata is allowed 
+    When checking file 'metadata-meta-file-as-valid.opf'
+    Then no errors or warnings are reported
+
+  Scenario: 'file-as' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-file-as-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"file-as" cannot be declared more than once'
+    And no other errors or warnings are reported
+
+  Scenario: 'group-position' metadata is allowed 
+    When checking file 'metadata-meta-group-position-valid.opf'
+    Then no errors or warnings are reported
+
+  Scenario: 'group-position' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-group-position-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"group-position" cannot be declared more than once'
+    And no other errors or warnings are reported
+
+	Scenario: 'identifier-type' metadata can only refine a 'source' or 'identifier' property
+    When checking file 'metadata-meta-identifier-type-refines-disallowed-error.opf'
+    Then error RSC-005 is reported
+    And the message contains 'Property "identifier-type" must refine an "identifier" or "source" property'
+    And no other errors or warnings are reported
+    
+  Scenario: 'identifier-type' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-identifier-type-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"identifier-type" cannot be declared more than once'
+    And no other errors or warnings are reported
     
   Scenario: 'meta-auth' metadata is deprecated 
     When checking file 'metadata-meta-meta-auth-deprecated-warning.opf'
     Then warning RSC-017 is reported
     And the message contains "the meta-auth property is deprecated"
     And no other errors or warnings are reported
+
+  Scenario: 'role' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-role-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"role" cannot be declared more than once'
+    And no other errors or warnings are reported
   
   Scenario: 'source-of' metadata can be used to refine the pagination source 
     When checking file 'metadata-meta-source-of-valid.opf'
@@ -701,13 +745,57 @@ Feature: EPUB 3 ▸ Packages ▸ Package Document Checks
   Scenario: 'source-of' metadata cannot be used as a primary metadata 
     When checking file 'metadata-meta-source-of-refines-missing-error.opf'
     Then error RSC-005 is reported
-    And the message contains 'The "source-of" property must refine a "dc:source" element'
+    And the message contains 'The "source-of" property must refine a "source" property'
     And no other errors or warnings are reported
   
   Scenario: 'source-of' metadata must refine a 'dc:source' metadata entry
     When checking file 'metadata-meta-source-of-refines-not-dcsource-error.opf'
     Then error RSC-005 is reported
-    And the message contains 'The "source-of" property must refine a "dc:source" element'
+    And the message contains 'The "source-of" property must refine a "source" property'
+    And no other errors or warnings are reported
+
+  Scenario: 'source-of' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-source-of-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"source-of" cannot be declared more than once'
+    And no other errors or warnings are reported
+
+  Scenario: 'term' metadata can refine a subject expression
+  	When checking file 'metadata-meta-term-valid.opf'
+  	Then no errors or warnings are reported
+
+  Scenario: 'term' metadata can only refine a subject expression
+  	When checking file 'metadata-meta-term-refines-disallowed-error.opf'
+  	Then error RSC-005 is reported
+    And the message contains 'Property "term" must refine a "subject" property'
+  	Then no errors or warnings are reported
+
+  Scenario: 'term' metadata must be associated to an authority
+  	When checking file 'metadata-meta-term-no-authority-error.opf'
+  	Then error RSC-005 is reported
+  	And the message contains "An authority property must be associated"
+  	And no other errors or warnings are reported
+
+  Scenario: 'term' metadata must not be defined more than once
+  	When checking file 'metadata-meta-term-cardinality-error.opf'
+  	Then error RSC-005 is reported
+  	And the message contains "Only one pair of authority and term properties"
+  	And no other errors or warnings are reported
+
+  Scenario: 'title-type' metadata can be used to refine a title expression 
+    When checking file 'metadata-meta-title-type-valid.opf'
+    Then no errors or warnings are reported
+
+	Scenario: 'title-type' metadata can only refine a 'title' expression
+    When checking file 'metadata-meta-title-type-refines-disallowed-error.opf'
+    Then error RSC-005 is reported
+    And the message contains 'Property "title-type" must refine a "title" property'
+    And no other errors or warnings are reported
+
+  Scenario: 'title-type' metadata cannot be defined more than once to refine the same expression 
+    When checking file 'metadata-meta-title-type-cardinality-error.opf'
+    Then error RSC-005 is reported
+    And the message contains '"title-type" cannot be declared more than once'
     And no other errors or warnings are reported
   
   # D. Metadata Link Vocabulary