javascript - NodeJS/MongoDB: Only connect one time to DB -


i'm doing e2e tests of nodejs application. in before/after hooks need add/remove mongodb documents , how that:

shouldn't possible connect 1 time mongo server @ all?

what do:

  1. remove documents { _id: articleid } @ beginning (right missing in code)
  2. insert new document db (collection.insertone(articles.main))
  3. remove documents after tests has finished

my code feels not me

describe('article module', function () {   before(function () {     mongoclient.connect(mongoserver, (err, db) => {       expect(err).to.be.null       db.collection('content', (err, collection) => {         expect(err).to.be.null         collection.findone({ _id: articleid }, (err, item) => {           expect(err).to.be.null           if (!item) collection.insertone(articles.main)           db.close()         })       })     })   })    after(function () {     mongoclient.connect(mongoserver, (err, db) => {       expect(err).to.be.null       db.collection('content', (err, collection) => {         expect(err).to.be.null         collection.remove({ _id: articleid }, (err, removed) => {           expect(err).to.be.null           db.close()         })       })     })   }) }) 

describe('article module', () => {   before(() => {      mongoclient.connect(mongoserver, (err, db) => {       expect(err).to.be.null        const content = db.collection('content');        content.findone({ _id: articleid })       .then(item => {         return content.insertone(articles.main);       })       .then(insertresult => {         db.close();       })       .catch(err => {         expect(err).to.be.null;       })     })    })    after(() => {     mongoclient.connect(mongoserver, (err, db) => {       expect(err).to.be.null        const content = db.collection('content');        content.remove({ _id: articleid })       .then(removed => {         db.close();       })       .catch(err => {         expect(err).to.be.null;       })     })   }) })

you can call db using third party promise well


Comments

Post a Comment

Popular posts from this blog

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

javascript - Z-index in d3.js -

i have map , when hover effect on region of map below yellow line , circle, last ones disappear. how can solve problem? http://jsfiddle.net/ot21n9qx/ var arc = g.append("path") .style("fill", "none") .style("stroke", "yellow") .style("stroke-width", 2) .attr("d", "m" + pathorigin[0] + "," + pathorigin[1] + " q" + svgpoint[0] + "," + pathorigin[1] + " " + svgpoint[0] + "," + svgpoint[1]); var circlesize = d3.scale.linear() .domain([0, 0.5, 1]) .range([4, 10, 4]); svg not have z order draws objects in order created. need create path , circle after create highlight regions. here forked fiddle: http://jsfiddle.net/o00fzgaf/1/
Read more