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Add support for Zoomify and Google tile layouts

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Breaks existing tile API
This commit is contained in:
Lovell Fuller
2016-03-03 20:29:23 +00:00
parent f950294f70
commit 38ddb3b866
6 changed files with 176 additions and 144 deletions
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231
test/unit/tile.js
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@@ -47,156 +47,149 @@ var assertDeepZoomTiles = function(directory, expectedSize, expectedLevels, done
describe('Tile', function() {
describe('Invalid tile values', function() {
it('size - NaN', function(done) {
var isValid = true;
try {
sharp().tile('zoinks');
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Valid size values pass', function() {
[1, 8192].forEach(function(size) {
assert.doesNotThrow(function() {
sharp().tile({
size: size
});
});
});
});
it('size - float', function(done) {
var isValid = true;
try {
sharp().tile(1.1);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Invalid size values fail', function() {
['zoinks', 1.1, -1, 0, 8193].forEach(function(size) {
assert.throws(function() {
sharp().tile({
size: size
});
});
});
});
it('size - negative', function(done) {
var isValid = true;
try {
sharp().tile(-1);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Valid overlap values pass', function() {
[0, 8192].forEach(function(overlap) {
assert.doesNotThrow(function() {
sharp().tile({
size: 8192,
overlap: overlap
});
});
});
});
it('size - zero', function(done) {
var isValid = true;
try {
sharp().tile(0);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Invalid overlap values fail', function() {
['zoinks', 1.1, -1, 8193].forEach(function(overlap) {
assert.throws(function() {
sharp().tile({
overlap: overlap
});
});
});
});
it('size - too large', function(done) {
var isValid = true;
try {
sharp().tile(8193);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Valid layout values pass', function() {
['dz', 'google', 'zoomify'].forEach(function(layout) {
assert.doesNotThrow(function() {
sharp().tile({
layout: layout
});
});
});
});
it('overlap - NaN', function(done) {
var isValid = true;
try {
sharp().tile(null, 'zoinks');
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Invalid layout values fail', function() {
['zoinks', 1].forEach(function(layout) {
assert.throws(function() {
sharp().tile({
layout: layout
});
});
});
});
it('overlap - float', function(done) {
var isValid = true;
try {
sharp().tile(null, 1.1);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Prevent larger overlap than default size', function() {
assert.throws(function() {
sharp().tile({overlap: 257});
});
});
it('overlap - negative', function(done) {
var isValid = true;
try {
sharp().tile(null, -1);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
it('Prevent larger overlap than provided size', function() {
assert.throws(function() {
sharp().tile({size: 512, overlap: 513});
});
it('overlap - too large', function(done) {
var isValid = true;
try {
sharp().tile(null, 8193);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
});
it('overlap - larger than default size', function(done) {
var isValid = true;
try {
sharp().tile(null, 257);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
});
it('overlap - larger than provided size', function(done) {
var isValid = true;
try {
sharp().tile(512, 513);
} catch (err) {
isValid = false;
}
assert.strictEqual(false, isValid);
done();
});
});
if (sharp.format.dz.output.file) {
describe('Deep Zoom output', function() {
it('Tile size - 256px default', function(done) {
var directory = fixtures.path('output.256_files');
rimraf(directory, function() {
sharp(fixtures.inputJpg).toFile(fixtures.path('output.256.dzi'), function(err, info) {
it('Deep Zoom layout', function(done) {
var directory = fixtures.path('output.dz_files');
rimraf(directory, function() {
sharp(fixtures.inputJpg)
.toFile(fixtures.path('output.dz.dzi'), function(err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
assertDeepZoomTiles(directory, 256, 13, done);
});
});
});
});
it('Tile size/overlap - 512/16px', function(done) {
var directory = fixtures.path('output.512_files');
rimraf(directory, function() {
sharp(fixtures.inputJpg).tile(512, 16).toFile(fixtures.path('output.512.dzi'), function(err, info) {
it('Deep Zoom layout with custom size+overlap', function(done) {
var directory = fixtures.path('output.dz.512_files');
rimraf(directory, function() {
sharp(fixtures.inputJpg)
.tile({
size: 512,
overlap: 16
})
.toFile(fixtures.path('output.dz.512.dzi'), function(err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
assertDeepZoomTiles(directory, 512 + 2 * 16, 13, done);
});
});
});
});
it('Zoomify layout', function(done) {
var directory = fixtures.path('output.zoomify');
rimraf(directory, function() {
sharp(fixtures.inputJpg)
.tile({
layout: 'zoomify'
})
.toFile(fixtures.path('output.zoomify.dzi'), function(err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
fs.stat(path.join(directory, 'ImageProperties.xml'), function(err, stat) {
if (err) throw err;
assert.strictEqual(true, stat.isFile());
assert.strictEqual(true, stat.size > 0);
done();
});
});
});
});
it('Google layout', function(done) {
var directory = fixtures.path('output.google');
rimraf(directory, function() {
sharp(fixtures.inputJpg)
.tile({
layout: 'google'
})
.toFile(fixtures.path('output.google.dzi'), function(err, info) {
if (err) throw err;
assert.strictEqual('dz', info.format);
fs.stat(path.join(directory, '0', '0', '0.jpg'), function(err, stat) {
if (err) throw err;
assert.strictEqual(true, stat.isFile());
assert.strictEqual(true, stat.size > 0);
done();
});
});
});
});
}
});