fix istanbul report writting by mock.restore in test/util/error.js

.travis.yml

@@ -4,4 +4,4 @@ node_js:
 before_script:
   - npm install -g mocha
 after_script: 
-  - NODE_ENV=test ./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec --recursive && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage
+  - NODE_ENV=test ./node_modules/.bin/istanbul cover --report lcovonly ./node_modules/mocha/bin/_mocha -- -R spec --recursive && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage

tags/layout.js

@@ -29,10 +29,6 @@ module.exports = function(liquid) {
                 .then((partial) => {
                     scope.pop();
                     return partial;
-                })
-                .catch((e) => {
-                    e.file = layout;
-                    throw e;
                 });
         }
     });

test/express.js

@@ -36,6 +36,9 @@ describe('engine#express()', function() {
             });
         });
     });
+    after(function(){
+        mock.restore();
+    });
     it('should render templates', function(done) {
         request(app).get('/name')
             .expect('My name is harttle.')

test/util/error.js

@@ -40,6 +40,7 @@ describe('error', function() {
             expect(err.input).to.equal('{% raw %}');
             expect(err.line).to.equal(4);
             expect(err.file).to.equal('/foo.html');
+            mock.restore();
         });
     });