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Allow PNG and WebP tile-based output in addition to JPEG (#622)

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This commit is contained in:
Patrick Paskaris
2016-11-13 15:36:43 -05:00
committed by Lovell Fuller
parent 6b426014ad
commit bc84d1e47a
5 changed files with 179 additions and 2 deletions
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121
test/unit/tile.js
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@@ -128,6 +128,22 @@ describe('Tile', function () {
});
});
it('Valid formats pass', function () {
['jpeg', 'png', 'webp'].forEach(function (format) {
assert.doesNotThrow(function () {
sharp().toFormat(format).tile();
});
});
});
it('Invalid formats fail', function () {
['tiff', 'raw'].forEach(function (format) {
assert.throws(function () {
sharp().toFormat(format).tile();
});
});
});
it('Prevent larger overlap than default size', function () {
assert.throws(function () {
sharp().tile({overlap: 257});
@@ -224,6 +240,111 @@ describe('Tile', function () {
});
});
it('Google layout with jpeg format', function (done) {
const directory = fixtures.path('output.jpg.google.dzi');
rimraf(directory, function () {
sharp(fixtures.inputJpg)
.jpeg({ quality: 1 })
.tile({
layout: 'google'
})
.toFile(directory, function (err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2225, info.height);
assert.strictEqual(3, info.channels);
assert.strictEqual('number', typeof info.size);
const sample = path.join(directory, '0', '0', '0.jpg');
sharp(sample).metadata(function (err, metadata) {
if (err) throw err;
assert.strictEqual('jpeg', metadata.format);
assert.strictEqual('srgb', metadata.space);
assert.strictEqual(3, metadata.channels);
assert.strictEqual(false, metadata.hasProfile);
assert.strictEqual(false, metadata.hasAlpha);
assert.strictEqual(true, metadata.width === 256);
assert.strictEqual(true, metadata.height === 256);
fs.stat(sample, function (err, stat) {
if (err) throw err;
assert.strictEqual(true, stat.size < 2000);
done();
});
});
});
});
});
it('Google layout with png format', function (done) {
const directory = fixtures.path('output.png.google.dzi');
rimraf(directory, function () {
sharp(fixtures.inputJpg)
.png({ compressionLevel: 1 })
.tile({
layout: 'google'
})
.toFile(directory, function (err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2225, info.height);
assert.strictEqual(3, info.channels);
assert.strictEqual('number', typeof info.size);
const sample = path.join(directory, '0', '0', '0.png');
sharp(sample).metadata(function (err, metadata) {
if (err) throw err;
assert.strictEqual('png', metadata.format);
assert.strictEqual('srgb', metadata.space);
assert.strictEqual(3, metadata.channels);
assert.strictEqual(false, metadata.hasProfile);
assert.strictEqual(false, metadata.hasAlpha);
assert.strictEqual(true, metadata.width === 256);
assert.strictEqual(true, metadata.height === 256);
fs.stat(sample, function (err, stat) {
if (err) throw err;
assert.strictEqual(true, stat.size > 44000);
done();
});
});
});
});
});
it('Google layout with webp format', function (done) {
const directory = fixtures.path('output.webp.google.dzi');
rimraf(directory, function () {
sharp(fixtures.inputJpg)
.webp({ quality: 1 })
.tile({
layout: 'google'
})
.toFile(directory, function (err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2225, info.height);
assert.strictEqual(3, info.channels);
assert.strictEqual('number', typeof info.size);
const sample = path.join(directory, '0', '0', '0.webp');
sharp(sample).metadata(function (err, metadata) {
if (err) throw err;
assert.strictEqual('webp', metadata.format);
assert.strictEqual('srgb', metadata.space);
assert.strictEqual(3, metadata.channels);
assert.strictEqual(false, metadata.hasProfile);
assert.strictEqual(false, metadata.hasAlpha);
assert.strictEqual(true, metadata.width === 256);
assert.strictEqual(true, metadata.height === 256);
fs.stat(sample, function (err, stat) {
if (err) throw err;
assert.strictEqual(true, stat.size < 2000);
done();
});
});
});
});
});
it('Write to ZIP container using file extension', function (done) {
const container = fixtures.path('output.dz.container.zip');
const extractTo = fixtures.path('output.dz.container');