diff --git a/test/css/no-strict-math/no-sm-operations.css b/test/css/no-strict-math/no-sm-operations.css
new file mode 100644
index 00000000..f1832023
--- /dev/null
+++ b/test/css/no-strict-math/no-sm-operations.css
@@ -0,0 +1,12 @@
+.named-colors-in-expressions {
+  color-0: 0 -red;
+  color-1: #000101;
+  color-2: #ff0000;
+  color-3: #ff0000;
+}
+.named-colors-in-expressions-bar-red {
+  x: y;
+}
+.named-colors-in-expressions-barred {
+  a: a;
+}
diff --git a/test/index.js b/test/index.js
index d8a7bb17..a7aab0eb 100644
--- a/test/index.js
+++ b/test/index.js
@@ -52,6 +52,7 @@ lessTester.runTestSet({plugin: 'test/plugins/postprocess/'}, "postProcessorPlugi
 lessTester.runTestSet({plugin: 'test/plugins/preprocess/'}, "preProcessorPlugin/");
 lessTester.runTestSet({plugin: 'test/plugins/visitor/'}, "visitorPlugin/");
 lessTester.runTestSet({plugin: 'test/plugins/filemanager/'}, "filemanagerPlugin/");
+lessTester.runTestSet({}, "no-strict-math/");
 lessTester.testSyncronous({syncImport: true}, "import");
 lessTester.testSyncronous({syncImport: true}, "css");
 lessTester.testNoOptions();
diff --git a/test/less/no-strict-math/no-sm-operations.less b/test/less/no-strict-math/no-sm-operations.less
new file mode 100644
index 00000000..3fe6791c
--- /dev/null
+++ b/test/less/no-strict-math/no-sm-operations.less
@@ -0,0 +1,10 @@
+.named-colors-in-expressions {
+    color-0: 0 -red;  
+    color-1: 1 - red; 
+    color-2: red * 2;
+    color-3: 2 * red;
+    @3: -red;
+    &-bar@{3} {x: y}
+    @color: red;
+    &-bar@{color} {a: a}
+}