128 lines
3.8 KiB
JavaScript
128 lines
3.8 KiB
JavaScript
var should = require('chai').should();
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var ScreenshotHandler = require('../../lib/screenshotHandler');
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var fs = require('fs');
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var path = require('path');
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describe('screenshotHandler', function() {
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var imagePath = path.join(__dirname, '../fixtures/logo-large.png');
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var screenshot, lwipImage;
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it('should open an image and return an lwip object', function(done) {
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ScreenshotHandler.openImage(imagePath)
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.then(function(image) {
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lwipImage = image;
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lwipImage.should.be.an('object');
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lwipImage.width().should.equal(620);
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lwipImage.height().should.equal(104);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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it('should resize an lwip image', function(done) {
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ScreenshotHandler.resizeImage(lwipImage, 310)
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.then(function(image) {
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lwipImage = image;
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lwipImage.width().should.equal(310);
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lwipImage.height().should.equal(52);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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it('should transform a lwip image into a buffer', function(done) {
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ScreenshotHandler.toBuffer(lwipImage)
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.then(function(buffer) {
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buffer.should.be.an.instanceof(Buffer);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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it('should optimize an image and return a buffered version', function(done) {
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ScreenshotHandler.optimize(imagePath, 200)
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.then(function(buffer) {
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buffer.should.be.an.instanceof(Buffer);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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it('should provide a temporary file object', function() {
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screenshot = ScreenshotHandler.getScreenshotTempFile();
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screenshot.should.have.a.property('getTmpFolder').that.is.a('function');
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screenshot.should.have.a.property('getTmpFilePath').that.is.a('function');
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screenshot.should.have.a.property('toThumbnail').that.is.a('function');
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screenshot.should.have.a.property('deleteTmpFile').that.is.a('function');
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});
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it('should have created the temporary folder', function() {
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var folder = screenshot.getTmpFolder();
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fs.existsSync(folder.path).should.equal(true);
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});
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it('should respond a temporary file', function() {
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var file = screenshot.getTmpFilePath();
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file.should.have.string('/screenshot.png');
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});
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it('should delete the temp folder when there is no file', function(done) {
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var tmpFolderPath = screenshot;
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screenshot.deleteTmpFile()
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.delay(1000)
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.then(function() {
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fs.existsSync(screenshot.getTmpFolder().path).should.equal(false);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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it('should delete the temp folder with the screenshot inside', function(done) {
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screenshot = ScreenshotHandler.getScreenshotTempFile();
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var tmpFolderPath = screenshot.getTmpFolder().path;
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var tmpImagePath = path.join(tmpFolderPath, 'screenshot.png');
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// Copy image
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var testImage = fs.readFileSync(imagePath);
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fs.writeFileSync(tmpImagePath, testImage);
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fs.existsSync(tmpImagePath).should.equal(true);
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screenshot.deleteTmpFile()
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.delay(1000)
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.then(function() {
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fs.existsSync(tmpImagePath).should.equal(false);
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fs.existsSync(tmpFolderPath).should.equal(false);
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done();
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})
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.fail(function(err) {
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done(err);
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});
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});
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}); |