mirror of
https://github.com/lovell/sharp.git
synced 2025-07-09 10:30:15 +02:00
550 lines
18 KiB
JavaScript
Executable File
550 lines
18 KiB
JavaScript
Executable File
/*jslint node: true */
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/*jslint es5: true */
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'use strict';
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var sharp = require("../index");
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var fs = require("fs");
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var path = require("path");
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var assert = require("assert");
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var async = require("async");
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var fixturesPath = path.join(__dirname, "fixtures");
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var inputJpg = path.join(fixturesPath, "2569067123_aca715a2ee_o.jpg"); // http://www.flickr.com/photos/grizdave/2569067123/
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var outputJpg = path.join(fixturesPath, "output.jpg");
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var inputTiff = path.join(fixturesPath, "G31D.TIF"); // http://www.fileformat.info/format/tiff/sample/e6c9a6e5253348f4aef6d17b534360ab/index.htm
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var outputTiff = path.join(fixturesPath, "output.tiff");
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var inputJpgWithExif = path.join(fixturesPath, "Landscape_8.jpg"); // https://github.com/recurser/exif-orientation-examples/blob/master/Landscape_8.jpg
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var inputPng = path.join(fixturesPath, "50020484-00001.png"); // http://c.searspartsdirect.com/lis_png/PLDM/50020484-00001.png
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var inputWebp = path.join(fixturesPath, "4.webp"); // http://www.gstatic.com/webp/gallery/4.webp
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var inputGif = path.join(fixturesPath, "Crash_test.gif"); // http://upload.wikimedia.org/wikipedia/commons/e/e3/Crash_test.gif
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// Ensure cache limits can be set
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sharp.cache(0); // Disable
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sharp.cache(50, 500); // 50MB, 500 items
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async.series([
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// Resize with exact crop
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function(done) {
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sharp(inputJpg).resize(320, 240).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Resize to fixed width
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function(done) {
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sharp(inputJpg).resize(320).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(261, info.height);
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done();
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});
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},
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// Resize to fixed height
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function(done) {
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sharp(inputJpg).resize(null, 320).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(391, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Identity transform
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function(done) {
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sharp(inputJpg).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(2725, info.width);
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assert.strictEqual(2225, info.height);
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done();
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});
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},
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// Upscale
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function(done) {
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sharp(inputJpg).resize(3000).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(3000, info.width);
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assert.strictEqual(2449, info.height);
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done();
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});
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},
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// Quality
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function(done) {
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sharp(inputJpg).resize(320, 240).quality(70).toBuffer(function(err, buffer70) {
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if (err) throw err;
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sharp(inputJpg).resize(320, 240).toBuffer(function(err, buffer80) {
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if (err) throw err;
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sharp(inputJpg).resize(320, 240).quality(90).toBuffer(function(err, buffer90) {
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assert(buffer70.length < buffer80.length);
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assert(buffer80.length < buffer90.length);
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done();
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});
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});
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});
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},
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// TIFF with dimensions known to cause rounding errors
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function(done) {
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sharp(inputTiff).resize(240, 320).embedBlack().jpeg().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(240, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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function(done) {
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sharp(inputTiff).resize(240, 320).jpeg().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(240, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Resize to max width or height considering ratio (landscape)
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function(done) {
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sharp(inputJpg).resize(320, 320).max().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(261, info.height);
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done();
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});
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},
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// Resize to max width or height considering ratio (portrait)
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function(done) {
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sharp(inputTiff).resize(320, 320).max().jpeg().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(243, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Attempt to resize to max but only provide one dimension, so should default to crop
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function(done) {
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sharp(inputJpg).resize(320).max().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(261, info.height);
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done();
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});
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},
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// Attempt to output to input, should fail
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function(done) {
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sharp(inputJpg).toFile(inputJpg, function(err) {
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assert(!!err);
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done();
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});
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},
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// Rotate by 90 degrees, respecting output input size
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function(done) {
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sharp(inputJpg).rotate(90).resize(320, 240).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Input image has Orientation EXIF tag but do not rotate output
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function(done) {
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sharp(inputJpgWithExif).resize(320).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(426, info.height);
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done();
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});
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},
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// Input image has Orientation EXIF tag value of 8 (270 degrees), auto-rotate
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function(done) {
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sharp(inputJpgWithExif).rotate().resize(320).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Attempt to auto-rotate using image that has no EXIF
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function(done) {
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sharp(inputJpg).rotate().resize(320).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(261, info.height);
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done();
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});
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},
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// Rotate to an invalid angle, should fail
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function(done) {
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var fail = false;
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try {
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sharp(inputJpg).rotate(1);
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fail = true;
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} catch (e) {}
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assert(!fail);
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done();
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},
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// Do not enlarge the output if the input width is already less than the output width
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function(done) {
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sharp(inputJpg).resize(2800).withoutEnlargement().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(2725, info.width);
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assert.strictEqual(2225, info.height);
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done();
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});
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},
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// Do not enlarge the output if the input height is already less than the output height
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function(done) {
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sharp(inputJpg).resize(null, 2300).withoutEnlargement().toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(2725, info.width);
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assert.strictEqual(2225, info.height);
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done();
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});
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},
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// Promises/A+
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function(done) {
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sharp(inputJpg).resize(320, 240).toBuffer().then(function(data) {
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sharp(data).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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}).catch(function(err) {
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throw err;
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});
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},
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// Empty Buffer, should fail
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function(done) {
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var fail = false;
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try {
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sharp(new Buffer(0));
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fail = true;
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} catch (e) {}
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assert(!fail);
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done();
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},
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// Check colour space conversion occurs from TIFF to WebP (this used to segfault)
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function(done) {
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sharp(inputTiff).webp().toBuffer().then(function() {
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done();
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});
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},
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// Interpolation: bilinear
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function(done) {
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sharp(inputJpg).resize(320, 240).interpolateWith(sharp.interpolator.bilinear).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Interpolation: bicubic
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function(done) {
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sharp(inputJpg).resize(320, 240).interpolateWith(sharp.interpolator.bicubic).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Interpolation: nohalo
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function(done) {
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sharp(inputJpg).resize(320, 240).interpolateWith(sharp.interpolator.nohalo).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Interpolation: locally bounded bicubic (LBB)
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function(done) {
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sharp(inputJpg).resize(320, 240).interpolateWith(sharp.interpolator.locallyBoundedBicubic).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// Interpolation: vertex split quadratic basis spline (VSQBS)
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function(done) {
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sharp(inputJpg).resize(320, 240).interpolateWith(sharp.interpolator.vertexSplitQuadraticBasisSpline).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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},
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// File-Stream
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function(done) {
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var writable = fs.createWriteStream(outputJpg);
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writable.on('finish', function() {
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sharp(outputJpg).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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fs.unlinkSync(outputJpg);
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done();
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});
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});
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sharp(inputJpg).resize(320, 240).pipe(writable);
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},
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// Buffer-Stream
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function(done) {
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var inputJpgBuffer = fs.readFileSync(inputJpg);
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var writable = fs.createWriteStream(outputJpg);
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writable.on('finish', function() {
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sharp(outputJpg).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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fs.unlinkSync(outputJpg);
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done();
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});
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});
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sharp(inputJpgBuffer).resize(320, 240).pipe(writable);
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},
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// Stream-File
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function(done) {
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var readable = fs.createReadStream(inputJpg);
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var pipeline = sharp().resize(320, 240).toFile(outputJpg, function(err, info) {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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fs.unlinkSync(outputJpg);
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done();
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});
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readable.pipe(pipeline);
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},
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// Stream-Buffer
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function(done) {
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var readable = fs.createReadStream(inputJpg);
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var pipeline = sharp().resize(320, 240).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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done();
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});
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readable.pipe(pipeline);
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},
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// Stream-Stream
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function(done) {
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var readable = fs.createReadStream(inputJpg);
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var writable = fs.createWriteStream(outputJpg);
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writable.on('finish', function() {
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sharp(outputJpg).toBuffer(function(err, data, info) {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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fs.unlinkSync(outputJpg);
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done();
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});
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});
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var pipeline = sharp().resize(320, 240);
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readable.pipe(pipeline).pipe(writable);
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},
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// Crop, gravity=north
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function(done) {
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sharp(inputJpg).resize(320, 80).crop(sharp.gravity.north).toFile(path.join(fixturesPath, 'output.gravity-north.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(80, info.height);
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done();
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});
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},
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// Crop, gravity=east
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function(done) {
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sharp(inputJpg).resize(80, 320).crop(sharp.gravity.east).toFile(path.join(fixturesPath, 'output.gravity-east.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(80, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Crop, gravity=south
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function(done) {
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sharp(inputJpg).resize(320, 80).crop(sharp.gravity.south).toFile(path.join(fixturesPath, 'output.gravity-south.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(80, info.height);
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done();
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});
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},
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// Crop, gravity=west
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function(done) {
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sharp(inputJpg).resize(80, 320).crop(sharp.gravity.west).toFile(path.join(fixturesPath, 'output.gravity-west.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(80, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Crop, gravity=center
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function(done) {
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sharp(inputJpg).resize(320, 80).crop(sharp.gravity.center).toFile(path.join(fixturesPath, 'output.gravity-center.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(80, info.height);
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done();
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});
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},
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// Crop, gravity=centre
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function(done) {
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sharp(inputJpg).resize(80, 320).crop(sharp.gravity.centre).toFile(path.join(fixturesPath, 'output.gravity-centre.jpg'), function(err, info) {
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if (err) throw err;
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assert.strictEqual(80, info.width);
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assert.strictEqual(320, info.height);
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done();
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});
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},
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// Metadata - JPEG
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function(done) {
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sharp(inputJpg).metadata(function(err, metadata) {
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if (err) throw err;
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assert.strictEqual('jpeg', metadata.format);
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assert.strictEqual(2725, metadata.width);
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assert.strictEqual(2225, metadata.height);
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assert.strictEqual('srgb', metadata.space);
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assert.strictEqual(3, metadata.channels);
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assert.strictEqual('undefined', typeof metadata.orientation);
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done();
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});
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},
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// Metadata - JPEG with EXIF
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function(done) {
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sharp(inputJpgWithExif).metadata(function(err, metadata) {
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if (err) throw err;
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assert.strictEqual('jpeg', metadata.format);
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assert.strictEqual(450, metadata.width);
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assert.strictEqual(600, metadata.height);
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assert.strictEqual('srgb', metadata.space);
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assert.strictEqual(3, metadata.channels);
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assert.strictEqual(8, metadata.orientation);
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done();
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});
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},
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// Metadata - TIFF
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function(done) {
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sharp(inputTiff).metadata(function(err, metadata) {
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if (err) throw err;
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assert.strictEqual('tiff', metadata.format);
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assert.strictEqual(2464, metadata.width);
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assert.strictEqual(3248, metadata.height);
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assert.strictEqual('b-w', metadata.space);
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assert.strictEqual(1, metadata.channels);
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done();
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});
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},
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// Metadata - PNG
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function(done) {
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sharp(inputPng).metadata(function(err, metadata) {
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if (err) throw err;
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assert.strictEqual('png', metadata.format);
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assert.strictEqual(2809, metadata.width);
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assert.strictEqual(2074, metadata.height);
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assert.strictEqual('b-w', metadata.space);
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assert.strictEqual(1, metadata.channels);
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done();
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});
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},
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// Metadata - WebP
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function(done) {
|
|
sharp(inputWebp).metadata(function(err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual('webp', metadata.format);
|
|
assert.strictEqual(1024, metadata.width);
|
|
assert.strictEqual(772, metadata.height);
|
|
assert.strictEqual('srgb', metadata.space);
|
|
assert.strictEqual(3, metadata.channels);
|
|
done();
|
|
});
|
|
},
|
|
// Metadata - GIF (via libmagick)
|
|
function(done) {
|
|
sharp(inputGif).metadata(function(err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual('magick', metadata.format);
|
|
assert.strictEqual(800, metadata.width);
|
|
assert.strictEqual(533, metadata.height);
|
|
assert.strictEqual(3, metadata.channels);
|
|
done();
|
|
});
|
|
},
|
|
// Metadata - Promise
|
|
function(done) {
|
|
sharp(inputJpg).metadata().then(function(metadata) {
|
|
assert.strictEqual('jpeg', metadata.format);
|
|
assert.strictEqual(2725, metadata.width);
|
|
assert.strictEqual(2225, metadata.height);
|
|
assert.strictEqual('srgb', metadata.space);
|
|
assert.strictEqual(3, metadata.channels);
|
|
done();
|
|
});
|
|
},
|
|
// Metadata - Stream
|
|
function(done) {
|
|
var readable = fs.createReadStream(inputJpg);
|
|
var pipeline = sharp().metadata(function(err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', metadata.format);
|
|
assert.strictEqual(2725, metadata.width);
|
|
assert.strictEqual(2225, metadata.height);
|
|
assert.strictEqual('srgb', metadata.space);
|
|
assert.strictEqual(3, metadata.channels);
|
|
done();
|
|
});
|
|
readable.pipe(pipeline);
|
|
},
|
|
// Get metadata then resize to half width
|
|
function(done) {
|
|
var image = sharp(inputJpg);
|
|
image.metadata(function(err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', metadata.format);
|
|
assert.strictEqual(2725, metadata.width);
|
|
assert.strictEqual(2225, metadata.height);
|
|
assert.strictEqual('srgb', metadata.space);
|
|
assert.strictEqual(3, metadata.channels);
|
|
image.resize(metadata.width / 2).toBuffer(function(err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual(1362, info.width);
|
|
assert.strictEqual(1112, info.height);
|
|
done();
|
|
});
|
|
});
|
|
},
|
|
// Verify internal counters
|
|
function(done) {
|
|
var counters = sharp.counters();
|
|
assert.strictEqual(0, counters.queue);
|
|
assert.strictEqual(0, counters.process);
|
|
done();
|
|
}
|
|
]);
|