add range header test to help investigate hexojs#186

test/index.js

@@ -127,15 +127,25 @@ describe('server', () => {
       res.headers.should.not.have.property('Content-Encoding');
     })));
 
-  it('static asset', () => {
+  describe('static asset', () => {
     const path = join(hexo.public_dir, 'test.html');
     const content = 'test html';
 
-    return fs.writeFile(path, content).then(() => Promise.using(prepareServer(), app => request(app).get('/test.html')
+    it("serves full", ()=>{
+      return fs.writeFile(path, content).then(() => Promise.using(prepareServer(), app => request(app).get('/test.html')
       .expect('Content-Type', 'text/html; charset=UTF-8')
       .expect(200, content))).finally(() => fs.unlink(path));
+    })
+
+    it('serves ranges', () => {
+      return fs.writeFile(path, content).then(() => Promise.using(prepareServer(), app => request(app).get('/test.html')
+        .set('Range', 'bytes=0-1')
+        .expect('Content-Length', '2')
+        .expect(206, "te"))).finally(() => fs.unlink(path));
+    });
   });
 
+
   it('invalid port', () => server({port: -100}).should.to.rejectedWith(RangeError, 'Port number -100 is invalid. Try a number between 1 and 65535.'));
 
   it('invalid port > 65535', () => server({port: 65536}).should.to.rejectedWith(RangeError, 'Port number 65536 is invalid. Try a number between 1 and 65535.'));