var should = require("should"); var sinon = require('sinon'); //var fs = require("fs"); var helper = require('../../../test/helper.js'); var exifNode = require('../../../utility/exif/94-exif.js'); describe('exif node', function() { "use strict"; beforeEach(function(done) { helper.startServer(done); }); afterEach(function(done) { helper.unload().then(function() { helper.stopServer(done); }); }); it('extracts location data from Exif data of JPEG', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; // the jpg file is a single black dot but it was originally a photo taken at IBM Hursley //console.log(process.cwd()); //var data = fs.readFileSync("test/utility/exif/exif_test_image.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor //var data = fs.readFileSync("exif_test_image.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = { gps: { GPSLatitudeRef: 'N', GPSLatitude: [ 50, 57, 22.4697 ], GPSLongitudeRef: 'W', GPSLongitude: [ 1, 22, 1.2467 ], GPSAltitudeRef: 0, GPSAltitude: 50, GPSTimeStamp: [ 7, 32, 2 ], GPSImgDirectionRef: 'M', GPSImgDirection: 267, GPSProcessingMethod: 'ASCII\u0000\u0000\u0000FUSED', GPSDateStamp: '2014:06:10' } }; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2) { arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); helperNode1.on("input", function(msg) { msg.location.lat.should.equal(50.95624); // this data is stored in the jpg file msg.location.lon.should.equal(-1.36701); exif.ExifImage.restore(); done(); }); exifNode1.receive({payload:new Buffer.from("hello")}); }); }); it('extracts location data in Southern and Eastern hemispheres', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; // the jpg file is a single black dot but it was originally a photo taken at IBM Hursley //console.log(process.cwd()); //var data = fs.readFileSync("test/utility/exif/exif_test_image.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor //var data = fs.readFileSync("exif_test_image.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = { gps: { GPSLatitudeRef: 'S', GPSLatitude: [ 50, 57, 22.4697 ], GPSLongitudeRef: 'E', GPSLongitude: [ 1, 22, 1.2467 ], GPSTimeStamp: [ 7, 32, 2 ], GPSImgDirectionRef: 'M', GPSImgDirection: 267, GPSProcessingMethod: 'ASCII\u0000\u0000\u0000FUSED', GPSDateStamp: '2014:06:10' } }; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2) { arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); helperNode1.on("input", function(msg) { msg.location.lat.should.equal(-50.95624); // this data is stored in the jpg file msg.location.lon.should.equal(1.36701); exif.ExifImage.restore(); done(); }); exifNode1.receive({payload:new Buffer.from("hello")}); }); }); it('should report if no data found', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; // the jpg file is a single black dot but it was originally a photo taken at IBM Hursley //console.log(process.cwd()); //var data = fs.readFileSync("test/utility/exif/exif_test_image2.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor //var data = fs.readFileSync("exif_test_image2.jpg", null); // extracting genuine exif data to be fed back as the result of the stubbed ExifImage constructor var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = {}; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2){ arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("The incoming image did not contain Exif GPS"); exif.ExifImage.restore(); done(); },150); exifNode1.receive({payload:new Buffer.from("hello")}); }); }); it('should report if not a jpeg', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; // this time just use a buffer that isn't an jpeg image var data = new Buffer.from("hello"); var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("Error: The given image is not a JPEG"); done(); },150); exifNode1.receive({payload:data}); }); }); it('should report if bad payload', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; var data = "hello"; var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("Invalid payload received, "); done(); },150); exifNode1.receive({payload:data}); }); }); it('should report if no payload', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; var data = new Buffer.from("hello"); var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("No payload received, "); done(); },150); exifNode1.receive({topic:data}); }); }); it('should report if bad latitude', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; var data = new Buffer.from("hello"); var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = { gps: { GPSLatitudeRef: 'N', GPSLatitude: [ 50, 57 ], GPSLongitudeRef: 'W', GPSLongitude: [ 1, 22, 1.2467 ], GPSAltitudeRef: 0, GPSAltitude: 50, GPSTimeStamp: [ 7, 32, 2 ] } }; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2){ arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("Invalid latitude data,"); exif.ExifImage.restore(); done(); },150); exifNode1.receive({payload:data}); }); }); it('should report if bad longitude', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; var data = new Buffer.from("hello"); var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = { gps: { GPSLatitudeRef: 'N', GPSLatitude: [ 50, 57, 1.3 ], GPSLongitudeRef: 'W', GPSLongitude: [ 1, 22 ], GPSAltitudeRef: 0, GPSAltitude: 50, GPSTimeStamp: [ 7, 32, 2 ] } }; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2){ arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("Invalid longitude data,"); exif.ExifImage.restore(); done(); },150); exifNode1.receive({payload:data}); }); }); it('should report if unsure about location', function(done) { var exif = require('exif'); var ExifImage = exif.ExifImage; var data = new Buffer.from("hello"); var eD; var flow = [{id:"exifNode1", type:"exif", wires:[["helperNode1"]]}, {id:"helperNode1", type:"helper"}]; var gpsmsg = { gps: { GPSLatitudeRef: 'N', GPSLatitude: [ 50, 57, 1.3 ], GPSAltitudeRef: 0, GPSAltitude: 50, GPSTimeStamp: [ 7, 32, 2 ] } }; var spy = sinon.stub(exif, 'ExifImage', function(arg1,arg2){ arg2(null,gpsmsg); }); helper.load(exifNode, flow, function() { var exifNode1 = helper.getNode("exifNode1"); var helperNode1 = helper.getNode("helperNode1"); setTimeout(function() { var logEvents = helper.log().args.filter(function(evt) { return evt[0].type == "exif"; }); logEvents.should.have.length(1); logEvents[0][0].should.have.a.property('msg'); logEvents[0][0].msg.toString().should.startWith("The location of this image cannot be determined safely"); exif.ExifImage.restore(); done(); },150); exifNode1.receive({payload:data}); }); }); });