diff --git a/tests/inputs/mixins.scss b/tests/inputs/mixins.scss
index 9baffc17..9cf55dd4 100644
--- a/tests/inputs/mixins.scss
+++ b/tests/inputs/mixins.scss
@@ -97,3 +97,46 @@ div {
         color: blue;
     }
 }
+
+
+// mixin content (http://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#mixin-content)
+@mixin content-simple {
+    div.mixin-content-simple {
+        @content;
+    }
+}
+
+@mixin content-with-arg ( $background ) {
+    div.mixin-content-with-arg {
+        background: $background;
+        @content;
+    }
+}
+
+@include content-simple {
+    color: red;
+}
+
+@include content-with-arg($background: blue) {
+    color: red;
+}
+
+@include content-with-arg($background: purple) { 
+    @include hello_world;
+}
+
+@include content-simple {
+    @include cool(10px, 12px, 21px);
+}
+
+@include content-simple {
+    @include something(orange);
+}
+
+@include content-with-arg($background: purple) { 
+    @include cool(10px, 12px, 21px);
+}
+
+@include content-with-arg($background: purple) { 
+    @include something(orange);
+}
\ No newline at end of file