diff --git a/test/plugins/addClassesToSVGElement.01.svg b/test/plugins/addClassesToSVGElement.01.svg
index 496864d96..8f3468dd4 100644
--- a/test/plugins/addClassesToSVGElement.01.svg
+++ b/test/plugins/addClassesToSVGElement.01.svg
@@ -1,3 +1,7 @@
+Should add classes when passed as a classNames Array
+
+===
+
 <svg xmlns="http://www.w3.org/2000/svg">
     test
 </svg>
diff --git a/test/plugins/addClassesToSVGElement.02.svg b/test/plugins/addClassesToSVGElement.02.svg
new file mode 100644
index 000000000..f21a9a3d8
--- /dev/null
+++ b/test/plugins/addClassesToSVGElement.02.svg
@@ -0,0 +1,17 @@
+Should add class when passed as a className String
+
+===
+
+<svg xmlns="http://www.w3.org/2000/svg">
+    test
+</svg>
+
+@@@
+
+<svg xmlns="http://www.w3.org/2000/svg" class="mySvg">
+    test
+</svg>
+
+@@@
+
+{"className":"mySvg"}