Added basic tests.

Author: Pedromdrp

README.md

@@ -1,2 +1,14 @@
 # mongoose-cursor-pagination
-Mongoose cursor-based pagination
+[![Build Status](https://travis-ci.org/enkidevs/mongoose-cursor-pagination.svg?branch=master)](https://travis-ci.org/enkidevs/mongoose-cursor-pagination.svg?branch=master)
+[![Dependency Status](https://david-dm.org/enkidevs/mongoose-cursor-pagination.svg)](https://david-dm.org/enkidevs/mongoose-cursor-pagination)
+[![devDependency Status](https://david-dm.org/enkidevs/mongoose-cursor-pagination/dev-status.svg)](https://david-dm.org/enkidevs/mongoose-cursor-pagination#info=devDependencies)
+[![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/enkidevs/mongoose-cursor-pagination/issues)
+[![HitCount](http://hits.dwyl.io/enkidevs/mongoose-cursor-pagination.svg)](http://hits.dwyl.io/enkidevs/mongoose-cursor-pagination)
+
+> Mongoose cursor-based pagination
+
+## Installation
+
+```bash
+npm install mongoose-cursor-pagination --save
+```

package.json

@@ -7,8 +7,8 @@
     "lib"
   ],
   "scripts": {
-    "build": "babel src --out-dir lib",
-    "test": "standard"
+    "prepare": "babel src --out-dir lib",
+    "test": "standard && mocha 'lib/**/__tests__/*'"
   },
   "repository": {
     "type": "git",
@@ -32,7 +32,9 @@
     "babel-cli": "^6.26.0",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-stage-0": "^6.24.1",
+    "mocha": "^4.0.1",
     "mongoose": "^4.12.3",
+    "should": "^13.1.2",
     "standard": "*"
   }
 }

src/__tests__/index.js

@@ -0,0 +1,113 @@
+/* eslint-env mocha */
+import should from 'should'
+import mongoose from 'mongoose'
+import paginationPlugin from '../index'
+
+describe('mongoose-cursor-pagination', function () {
+  before(function () {
+    mongoose.Promise = Promise
+    return mongoose.connect('mongodb://127.0.0.1/test', {
+      useMongoClient: true
+    })
+  })
+
+  before(function () {
+    const UserSchema = new mongoose.Schema({
+      name: { type: String },
+      value: { type: Number, unique: true, index: true }
+    })
+    UserSchema.plugin(paginationPlugin, {
+      limit: 5
+    })
+    mongoose.model('User', UserSchema)
+  })
+
+  before(function () {
+    /* return mongoose.model('User').insertMany(Array(1000)
+      .fill()
+      .map((_, i) => ({
+        name: `User ${i}`,
+        value: i
+      }))) */
+  })
+
+  after(function () {
+    // return mongoose.model('User').remove()
+  })
+
+  it('pagination with no options', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value'
+    })
+      .then(results => {
+        should.equal(results.items.length, 5)
+      })
+  })
+
+  it('pagination by key and ascendingly', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value',
+      sort: { value: 1 }
+    })
+      .then(results => {
+        should.equal(results.items.length, 5)
+        should.equal(results.hasMore, true)
+        should.equal(results.items[0].value, 0)
+        should.equal(results.items[4].value, 4)
+      })
+  })
+
+  it('pagination by key, ascendingly and startingAfter', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value',
+      sort: { value: 1 },
+      startingAfter: 4
+    })
+      .then(results => {
+        should.equal(results.items.length, 5)
+        should.equal(results.hasMore, true)
+        should.equal(results.items[0].value, 5)
+        should.equal(results.items[4].value, 9)
+      })
+  })
+
+  it('pagination when it reaches the end', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value',
+      sort: { value: 1 },
+      startingAfter: 998
+    })
+      .then(results => {
+        should.equal(results.items.length, 1)
+        should.equal(results.hasMore, false)
+        should.equal(results.items[0].value, 999)
+      })
+  })
+
+  it('pagination by key and descendingly', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value',
+      sort: { value: -1 }
+    })
+      .then(results => {
+        should.equal(results.items.length, 5)
+        should.equal(results.hasMore, true)
+        should.equal(results.items[0].value, 999)
+        should.equal(results.items[4].value, 995)
+      })
+  })
+
+  it('pagination by key, ascendingly and endingBefore', function () {
+    return mongoose.model('User').paginate({}, {
+      key: 'value',
+      sort: { value: -1 },
+      endingBefore: 995
+    })
+      .then(results => {
+        should.equal(results.items.length, 5)
+        should.equal(results.hasMore, true)
+        should.equal(results.items[0].value, 994)
+        should.equal(results.items[4].value, 990)
+      })
+  })
+})