diff --git a/test/main.js b/test/main.js
index df4f8c6..c47db60 100644
--- a/test/main.js
+++ b/test/main.js
@@ -19,7 +19,7 @@ var createVinyl = function createVinyl(filename, contents) {
   });
 };
 
-describe('gulp-sass', function() {
+describe('gulp-sass -- async compile', function() {
   it('should pass file when it isNull()', function(done) {
     var stream = sass();
     var emptyFile = {
@@ -154,3 +154,139 @@ describe('gulp-sass', function() {
     stream.write(sassFile);
   });
 });
+
+describe('gulp-sass -- sync compile', function() {
+  it('should pass file when it isNull()', function(done) {
+    var stream = sass.sync();
+    var emptyFile = {
+      'isNull': function () {
+        return true;
+      }
+    };
+    stream.on('data', function(data) {
+      data.should.equal(emptyFile);
+      done();
+    });
+    stream.write(emptyFile);
+  });
+
+  it('should emit error when file isStream()', function (done) {
+    var stream = sass.sync();
+    var streamFile = {
+      'isNull': function () {
+        return false;
+      },
+      'isStream': function () {
+        return true;
+      }
+    };
+    stream.on('error', function(err) {
+      err.message.should.equal('Streaming not supported');
+      done();
+    });
+    stream.write(streamFile);
+  });
+
+  it('should compile a single sass file', function(done) {
+    var sassFile = createVinyl('mixins.scss');
+    var stream = sass.sync();
+    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/mixins.css'), 'utf8')
+      );
+      done();
+    });
+    stream.write(sassFile);
+  });
+
+  it('should compile multiple sass files', function(done) {
+    var files = [
+      createVinyl('mixins.scss'),
+      createVinyl('variables.scss')
+    ];
+    var stream = sass.sync();
+    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('variables') !== -1) {
+        expectedPath = 'expected/variables.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);
+    });
+  });
+
+  it('should compile files with partials in another folder', function(done) {
+    var sassFile = createVinyl('inheritance.scss');
+    var stream = sass.sync();
+    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/inheritance.css'), 'utf8')
+      );
+      done();
+    });
+    stream.write(sassFile);
+  });
+
+  it('should handle sass errors', function(done) {
+    var errorFile = createVinyl('error.scss');
+    var stream = sass.sync();
+
+    stream.on('error', function(err) {
+      err.message.indexOf('property "font" must be followed by a \':\'').should.equal(0);
+      done();
+    });
+    stream.write(errorFile);
+  });
+
+  it('should work with gulp-sourcemaps', function(done) {
+    var sassFile = createVinyl('inheritance.scss');
+
+    // Expected sources are relative to file.base
+    var expectedSources = [
+      'includes/_cats.scss',
+      'inheritance.scss'
+    ];
+
+    var stream;
+
+    sassFile.sourceMap = '{' +
+      '"version": 3,' +
+      '"file": "scss/subdir/multilevelimport.scss",' +
+      '"names": [],' +
+      '"mappings": "",' +
+      '"sources": [ "scss/subdir/multilevelimport.scss" ],' +
+      '"sourcesContent": [ "@import ../inheritance;" ]' +
+    '}';
+
+    stream = sass.sync();
+    stream.on('data', function(cssFile) {
+      should.exist(cssFile.sourceMap);
+      assert.deepEqual(cssFile.sourceMap.sources, expectedSources);
+      done();
+    });
+    stream.write(sassFile);
+  });
+});