diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/contents.plist b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/contents.plist
new file mode 100644
index 000000000..023bf6160
--- /dev/null
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/contents.plist
@@ -0,0 +1,8 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>nlitest</key>
+    <string>nlitest.glif</string>
+  </dict>
+</plist>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/nlitest.glif b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/nlitest.glif
new file mode 100644
index 000000000..10f63500c
--- /dev/null
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_end/nlitest.glif
@@ -0,0 +1,12 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<glyph name="nlitest" format="2">
+  <advance width="750"/>
+  <outline>
+    <contour>
+      <point x="0" y="50" type="line"/>
+      <point x="0" y="0" type="line"/>
+      <point x="50" y="0" type="line"/>
+      <point x="750" y="0" type="line"/>
+    </contour>
+  </outline>
+</glyph>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/contents.plist b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/contents.plist
new file mode 100644
index 000000000..023bf6160
--- /dev/null
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/contents.plist
@@ -0,0 +1,8 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>nlitest</key>
+    <string>nlitest.glif</string>
+  </dict>
+</plist>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/nlitest.glif b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/nlitest.glif
new file mode 100644
index 000000000..727330dd7
--- /dev/null
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs.rotate_off/nlitest.glif
@@ -0,0 +1,12 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<glyph name="nlitest" format="2">
+  <advance width="750"/>
+  <outline>
+    <contour>
+      <point x="0" y="50" type="line"/>
+      <point x="0" y="0" type="line"/>
+      <point x="50" y="0" type="line"/>
+      <point x="750" y="750" type="line"/>
+    </contour>
+  </outline>
+</glyph>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/contents.plist b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/contents.plist
index cd85400b8..ae707149c 100644
--- a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/contents.plist
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/contents.plist
@@ -88,6 +88,8 @@
     <string>dot.glif</string>
     <key>em</key>
     <string>em.glif</string>
+    <key>nlitest</key>
+    <string>nlitest.glif</string>
     <key>period</key>
     <string>period.glif</string>
     <key>quotedblbase</key>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/nlitest.glif b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/nlitest.glif
new file mode 100644
index 000000000..fcae18f6e
--- /dev/null
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/glyphs/nlitest.glif
@@ -0,0 +1,88 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<glyph name="nlitest" format="2">
+  <advance width="750"/>
+  <outline>
+    <contour>
+      <point x="0" y="50" type="line"/>
+      <point x="0" y="0" type="line"/>
+      <point x="50" y="0" type="line"/>
+      <point x="0" y="750" type="line"/>
+    </contour>
+  </outline>
+  <lib>
+    <dict>
+      <key>com.black-foundry.glyph-designspace</key>
+      <dict>
+        <key>axes</key>
+        <array>
+          <dict>
+            <key>default</key>
+            <integer>0</integer>
+            <key>maximum</key>
+            <integer>100</integer>
+            <key>minimum</key>
+            <integer>0</integer>
+            <key>name</key>
+            <string>rotate*1</string>
+          </dict>
+          <dict>
+            <key>default</key>
+            <integer>0</integer>
+            <key>maximum</key>
+            <integer>100</integer>
+            <key>minimum</key>
+            <integer>0</integer>
+            <key>name</key>
+            <string>rotate*2</string>
+          </dict>
+        </array>
+        <key>sources</key>
+        <array>
+          <dict>
+            <key>layername</key>
+            <string>rotate_off</string>
+            <key>location</key>
+            <dict>
+              <key>rotate*1</key>
+              <integer>100</integer>
+            </dict>
+          </dict>
+          <dict>
+            <key>layername</key>
+            <string>rotate_off</string>
+            <key>location</key>
+            <dict>
+              <key>rotate*2</key>
+              <integer>100</integer>
+            </dict>
+          </dict>
+          <dict>
+            <key>layername</key>
+            <string>rotate_end</string>
+            <key>location</key>
+            <dict>
+              <key>rotate*1</key>
+              <integer>100</integer>
+              <key>rotate*2</key>
+              <integer>100</integer>
+            </dict>
+          </dict>
+        </array>
+      </dict>
+      <key>xyz.fontra.layer-names</key>
+      <dict>
+        <key>MutatorSansLightCondensed/foreground</key>
+        <string>&lt;default&gt;</string>
+        <key>MutatorSansLightCondensed/rotate_end</key>
+        <string>rotate_end</string>
+        <key>MutatorSansLightCondensed/rotate_off</key>
+        <string>rotate_off</string>
+      </dict>
+      <key>xyz.fontra.source-names</key>
+      <dict>
+        <key>LightCondensed</key>
+        <string>&lt;default&gt;</string>
+      </dict>
+    </dict>
+  </lib>
+</glyph>
diff --git a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/layercontents.plist b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/layercontents.plist
index 363065214..8195c9570 100644
--- a/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/layercontents.plist
+++ b/test-py/data/mutatorsans/MutatorSansLightCondensed.ufo/layercontents.plist
@@ -46,5 +46,13 @@
       <string>width=1,weight=1</string>
       <string>glyphs.width=1,weight=1</string>
     </array>
+    <array>
+      <string>rotate_end</string>
+      <string>glyphs.rotate_end</string>
+    </array>
+    <array>
+      <string>rotate_off</string>
+      <string>glyphs.rotate_off</string>
+    </array>
   </array>
 </plist>