Allow multiple contains() expectations as well

Author: mirisuzanne

CHANGELOG.md

@@ -5,8 +5,8 @@
 - BREAKING: Remove the `$inspect` option from assertions,
   since Sass has improved comparisons and changed inspection.
   [#332](https://github.com/oddbird/true/pull/332)
-- NEW: Multiple `contains-string()` expectations can be used
-  in a single assertion.
+- NEW: Multiple `contains()` and `contains-string()` expectations
+  can be used in a single assertion.
 - INTERNAL: Update dependencies
 
 **Migration**:

test/scss/assert/_output.scss

@@ -185,6 +185,25 @@
         }
       }
     }
+
+    @include it('Can contain multiple/overlapping assertions') {
+      @include assert {
+        @include output {
+          .example {
+            width: 12em;
+            height: 1lh;
+            border: thin solid;
+          }
+        }
+
+        @include contains { width: 12em; }
+        @include contains { height: 1lh; }
+        @include contains {
+          height: 1lh;
+          border: thin solid;
+        }
+      }
+    }
   }
 
   @include it('Can be used with @at-root') {