diff --git a/testsuite/reftests/meson.build b/testsuite/reftests/meson.build
index 998d76349d..9845b42e06 100644
--- a/testsuite/reftests/meson.build
+++ b/testsuite/reftests/meson.build
@@ -325,6 +325,9 @@ testdata = [
'paned-undersized.css',
'paned-undersized.ref.ui',
'paned-undersized.ui',
+ 'partial-rounded-border.css',
+ 'partial-rounded-border.ref.ui',
+ 'partial-rounded-border.ui',
'picture-load-invalid-file.ui',
'picture-load-invalid-file.ref.ui',
'pseudoclass-on-box.css',
diff --git a/testsuite/reftests/partial-rounded-border.css b/testsuite/reftests/partial-rounded-border.css
new file mode 100644
index 0000000000..404f3017a8
--- /dev/null
+++ b/testsuite/reftests/partial-rounded-border.css
@@ -0,0 +1,40 @@
+* {
+ all: unset;
+}
+
+.background {
+ background-color: red;
+}
+
+button {
+ padding: 10px;
+}
+
+#topleft {
+ border-top-left-radius: 20px;
+ border-left: 5px solid blue;
+ border-top: 5px solid blue;
+}
+
+#topright {
+ border-top-right-radius: 20px;
+ border-right: 5px solid blue;
+ border-top: 5px solid blue;
+}
+
+#bottomleft {
+ border-bottom-left-radius: 20px;
+ border-left: 5px solid blue;
+ border-bottom: 5px solid blue;
+}
+
+#bottomright {
+ border-bottom-right-radius: 20px;
+ border-right: 5px solid blue;
+ border-bottom: 5px solid blue;
+}
+
+#reference {
+ border: 5px solid blue;
+ border-radius: 20px;
+}
diff --git a/testsuite/reftests/partial-rounded-border.ref.ui b/testsuite/reftests/partial-rounded-border.ref.ui
new file mode 100644
index 0000000000..04bd817a67
--- /dev/null
+++ b/testsuite/reftests/partial-rounded-border.ref.ui
@@ -0,0 +1,47 @@
+
+
+
+
diff --git a/testsuite/reftests/partial-rounded-border.ui b/testsuite/reftests/partial-rounded-border.ui
new file mode 100644
index 0000000000..c0d272463c
--- /dev/null
+++ b/testsuite/reftests/partial-rounded-border.ui
@@ -0,0 +1,50 @@
+
+
+
+