tweak testcase

Makefile

@@ -4,20 +4,24 @@ npm_bin= $$(npm bin)
 all: test
 install:
 	@npm install
+server:
+	npm i startserver --save-dev
+	${npm_bin}/startserver -s -p 8080 &
+pre-test: server
+	sleep 5
 test:
-	@node --harmony \
+	@node \
 		${npm_bin}/istanbul cover ${npm_bin}/_mocha \
 		-- \
 		--timeout 10000 \
 		--require co-mocha
-travis: install
-	@NODE_ENV=test $(BIN) $(FLAGS) \
-		./node_modules/.bin/istanbul cover \
-		./node_modules/.bin/_mocha \
+travis: install pre-test
+	@node \
+		${npm_bin}/istanbul cover ${npm_bin}/_mocha \
 		--report lcovonly \
 		-- -u exports \
-		$(REQUIRED) \
-		$(TESTS) \
+		--timeout 10000 \
+		--require co-mocha \
 		--bail
 jshint:
 	@${npm_bin}/jshint .

test/detect-port.test.js

@@ -40,34 +40,43 @@ describe('detect port test', () => {
   it('generator usage', function *() {
     var _port = 8080;
     try {
-      var port = yield detectPort(8080);
+      var port = yield detectPort(_port);
       port.should.within(_port, 65535);
     } catch (err) {
       console.log(err);
     }
   });
 
-  it('promise usage', function *() {
-    detectPort(8080)
+  it('promise usage', done => {
+    var _port = 8080;
+    detectPort(_port)
       .then(port => {
-        console.log(port);
+        port.should.within(_port, 65535);
+        done();
       })
       .catch(err => {
         console.log(err);
+        done();
       });
   });
 
-  it('generator with wrong arguments', function *() {
-    try {
-      yield detectPort();
-    } catch (err) {
-      err.should.containEql('wrong number of arguments');
-    }
+  it('promise with wrong arguments', done => {
+    detectPort()
+      .then(() => {
+        done();
+      })
+      .catch(err => {
+        err.should.containEql('wrong number of arguments');
+        done();
+      });
+  });
 
+  it('generator with wrong arguments', function *() {
     try {
       yield detectPort('8080');
     } catch (err) {
       err.should.containEql('wrong type of arguments');
     }
   });
+
 });