diff --git a/test/expected/indent.css b/test/expected/indent.css
new file mode 100644
index 0000000..39efa47
--- /dev/null
+++ b/test/expected/indent.css
@@ -0,0 +1,2 @@
+body .div {
+  color: blue; }
diff --git a/test/expected/inheritance.css b/test/expected/inheritance.css
index d2c002a..62fc9a3 100644
--- a/test/expected/inheritance.css
+++ b/test/expected/inheritance.css
@@ -1,6 +1,9 @@
 body {
   background: pink; }
 
+footer {
+  background: red; }
+
 .error, .badError {
   border: #f00;
   background: #fdd; }
diff --git a/test/main.js b/test/main.js
index ebec4e1..8dc6522 100644
--- a/test/main.js
+++ b/test/main.js
@@ -5,7 +5,6 @@ var gutil = require('gulp-util');
 var path = require('path');
 var fs = require('fs');
 var sass = require('../index');
-var assert = require('assert');
 
 var createVinyl = function createVinyl(filename, contents) {
   var base = path.join(__dirname, 'scss');
@@ -131,6 +130,7 @@ describe('gulp-sass -- async compile', function() {
     // Expected sources are relative to file.base
     var expectedSources = [
       'includes/_cats.scss',
+      'includes/_dogs.sass',
       'inheritance.scss'
     ];
 
@@ -148,11 +148,58 @@ describe('gulp-sass -- async compile', function() {
     stream = sass();
     stream.on('data', function(cssFile) {
       should.exist(cssFile.sourceMap);
-      assert.deepEqual(cssFile.sourceMap.sources, expectedSources);
+      cssFile.sourceMap.sources.should.eql(expectedSources);
       done();
     });
     stream.write(sassFile);
   });
+
+  it('should compile a single indented sass file', function(done) {
+    var sassFile = createVinyl('indent.sass');
+    var stream = sass();
+    stream.on('data', function(cssFile) {
+      should.exist(cssFile);
+      should.exist(cssFile.path);
+      should.exist(cssFile.relative);
+      should.exist(cssFile.contents);
+      String(cssFile.contents).should.equal(
+        fs.readFileSync(path.join(__dirname, 'expected/indent.css'), 'utf8')
+      );
+      done();
+    });
+    stream.write(sassFile);
+  });
+
+  it('should parse files in sass and scss', function(done) {
+    var files = [
+      createVinyl('mixins.scss'),
+      createVinyl('indent.sass')
+    ];
+    var stream = sass();
+    var mustSee = files.length;
+    var expectedPath = 'expected/mixins.css';
+
+    stream.on('data', function(cssFile) {
+      should.exist(cssFile);
+      should.exist(cssFile.path);
+      should.exist(cssFile.relative);
+      should.exist(cssFile.contents);
+      if (cssFile.path.indexOf('indent') !== -1) {
+        expectedPath = 'expected/indent.css';
+      }
+      String(cssFile.contents).should.equal(
+        fs.readFileSync(path.join(__dirname, expectedPath), 'utf8')
+      );
+      mustSee--;
+      if (mustSee <= 0) {
+        done();
+      }
+    });
+
+    files.forEach(function (file) {
+      stream.write(file);
+    });
+  });
 });
 
 describe('gulp-sass -- sync compile', function() {
@@ -267,6 +314,7 @@ describe('gulp-sass -- sync compile', function() {
     // Expected sources are relative to file.base
     var expectedSources = [
       'includes/_cats.scss',
+      'includes/_dogs.sass',
       'inheritance.scss'
     ];
 
@@ -284,7 +332,7 @@ describe('gulp-sass -- sync compile', function() {
     stream = sass.sync();
     stream.on('data', function(cssFile) {
       should.exist(cssFile.sourceMap);
-      assert.deepEqual(cssFile.sourceMap.sources, expectedSources);
+      cssFile.sourceMap.sources.should.eql(expectedSources);
       done();
     });
     stream.write(sassFile);
diff --git a/test/scss/includes/_dogs.sass b/test/scss/includes/_dogs.sass
new file mode 100644
index 0000000..fbdee6e
--- /dev/null
+++ b/test/scss/includes/_dogs.sass
@@ -0,0 +1,5 @@
+$blue: #3bbfce;
+$margin: 16px;
+
+footer
+  background: red;
diff --git a/test/scss/indent.sass b/test/scss/indent.sass
new file mode 100644
index 0000000..1c72199
--- /dev/null
+++ b/test/scss/indent.sass
@@ -0,0 +1,4 @@
+$color: blue
+
+body .div
+  color: $color
diff --git a/test/scss/inheritance.scss b/test/scss/inheritance.scss
index f42ec79..b2cab38 100644
--- a/test/scss/inheritance.scss
+++ b/test/scss/inheritance.scss
@@ -1,4 +1,5 @@
 @import "includes/cats";
+@import "includes/dogs";
 
 .error {
   border: #f00;