diff --git a/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/fail.xml b/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/fail.xml
new file mode 100644
index 0000000000..251da5e5b3
--- /dev/null
+++ b/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/fail.xml
@@ -0,0 +1,16 @@
+<?oxygen SCHSchema="abstract-lang-test-1.sch"?>
+<!--Context: abstract[@xml:lang]
+Test: assert    $subtag-description!=''
+Message: The xml:lang attribute on  must contain one of the IETF RFC 5646 subtags. '' is not one of these values. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <article-meta>
+            <abstract xml:lang="spanish"/>
+            <abstract xml:lang="german"/>
+            <abstract xml:lang="irish"/>
+            <abstract xml:lang="hatian-creole"/>
+            <abstract xml:lang="hiri-motu"/>
+            <abstract xml:lang="zulu"/>
+        </article-meta>
+    </article>
+</root>
\ No newline at end of file
diff --git a/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/pass.xml b/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/pass.xml
new file mode 100644
index 0000000000..50d683e79e
--- /dev/null
+++ b/test/tests/rp/abstract-lang-checks/abstract-lang-test-1/pass.xml
@@ -0,0 +1,16 @@
+<?oxygen SCHSchema="abstract-lang-test-1.sch"?>
+<!--Context: abstract[@xml:lang]
+Test: assert    $subtag-description!=''
+Message: The xml:lang attribute on  must contain one of the IETF RFC 5646 subtags. '' is not one of these values. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <article-meta>
+            <abstract xml:lang="es"/>
+            <abstract xml:lang="de"/>
+            <abstract xml:lang="ga"/>
+            <abstract xml:lang="ht"/>
+            <abstract xml:lang="ho"/>
+            <abstract xml:lang="zu"/>
+        </article-meta>
+    </article>
+</root>
\ No newline at end of file
diff --git a/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/fail.xml b/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/fail.xml
new file mode 100644
index 0000000000..c2264f15ae
--- /dev/null
+++ b/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/fail.xml
@@ -0,0 +1,16 @@
+<?oxygen SCHSchema="abstract-lang-test-2.sch"?>
+<!--Context: abstract[@xml:lang]
+Test: report    $subtag-description!=''
+Message:  has an xml:lang attribute with the value '', which corresponds to the following language: . Please check this is correct. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <article-meta>
+            <abstract xml:lang="es"/>
+            <abstract xml:lang="de"/>
+            <abstract xml:lang="ga"/>
+            <abstract xml:lang="ht"/>
+            <abstract xml:lang="ho"/>
+            <abstract xml:lang="zu"/>
+        </article-meta>
+    </article>
+</root>
\ No newline at end of file
diff --git a/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/pass.xml b/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/pass.xml
new file mode 100644
index 0000000000..113c2b4693
--- /dev/null
+++ b/test/tests/rp/abstract-lang-checks/abstract-lang-test-2/pass.xml
@@ -0,0 +1,11 @@
+<?oxygen SCHSchema="abstract-lang-test-2.sch"?>
+<!--Context: abstract[@xml:lang]
+Test: report    $subtag-description!=''
+Message:  has an xml:lang attribute with the value '', which corresponds to the following language: . Please check this is correct. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <article-meta>
+            <abstract xml:lang=""/>
+        </article-meta>
+    </article>
+</root>
\ No newline at end of file