Merge pull request #175 from macbre/tests-node-sass

Run tests with node-sass installed

.github/workflows/nodejs.yml

@@ -24,7 +24,19 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm ci
-    - run: npm test
+
+    - name: Install dependencies
+      run: npm ci
+
+    - name: Lint the code
+      run: npm run lint
+
+    - name: Run tests (with node-sass support)
+      run: |
+        npm install [email protected]
+        npm test
+
     - name: Check that "binary" script works
-      run: ./bin/analyze-css.js --file examples/ti.mobile.css  -p | grep metrics -B2
+      run: |
+        ./bin/analyze-css.js --file examples/ti.mobile.css  -p | grep metrics -B2
+        ./bin/analyze-css.js --file examples/base.scss  -p | grep offenders -A3

lib/preprocessors/sass.js

@@ -25,7 +25,7 @@ module.exports = {
 			throw new Error("Can't process SASS/SCSS, please run 'npm install node-sass'");
 		}
 
-		var includeDir = path.dirname(options.file);
+		var includeDir = options.file ? path.dirname(options.file) : undefined;
 		debug('Using "%s" include path', includeDir);
 
 		try {