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Add support for page selection with multi-page TIFF input (#1204)

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This commit is contained in:
Nathan Graves
2018-04-24 14:57:27 -07:00
committed by Lovell Fuller
parent 8ef1532691
commit b154cd0418
7 changed files with 84 additions and 1 deletions
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63
test/unit/io.js
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@@ -528,6 +528,22 @@ describe('Input/output', function () {
});
});
it('TIFF file input with invalid page fails gracefully', function (done) {
sharp(fixtures.inputTiffMultipage, { page: 2 })
.toBuffer(function (err) {
assert.strictEqual(true, !!err);
done();
});
});
it('TIFF buffer input with invalid page fails gracefully', function (done) {
sharp(fs.readFileSync(fixtures.inputTiffMultipage), { page: 2 })
.toBuffer(function (err) {
assert.strictEqual(true, !!err);
done();
});
});
describe('Output filename with unknown extension', function () {
it('Match JPEG input', function (done) {
sharp(fixtures.inputJpg)
@@ -880,6 +896,53 @@ describe('Input/output', function () {
});
});
it('Load multi-page TIFF\'s from file', function (done) {
sharp(fixtures.inputTiffMultipage) // defaults to page 0
.jpeg()
.toBuffer(function (err, defaultData, defaultInfo) {
if (err) throw err;
assert.strictEqual(true, defaultData.length > 0);
assert.strictEqual(defaultData.length, defaultInfo.size);
assert.strictEqual('jpeg', defaultInfo.format);
sharp(fixtures.inputTiffMultipage, { page: 1 }) // 50%-scale copy of page 0
.jpeg()
.toBuffer(function (err, scaledData, scaledInfo) {
if (err) throw err;
assert.strictEqual(true, scaledData.length > 0);
assert.strictEqual(scaledData.length, scaledInfo.size);
assert.strictEqual('jpeg', scaledInfo.format);
assert.strictEqual(defaultInfo.width, scaledInfo.width * 2);
assert.strictEqual(defaultInfo.height, scaledInfo.height * 2);
done();
});
});
});
it('Load multi-page TIFF\'s from Buffer', function (done) {
const inputTiffBuffer = fs.readFileSync(fixtures.inputTiffMultipage);
sharp(inputTiffBuffer) // defaults to page 0
.jpeg()
.toBuffer(function (err, defaultData, defaultInfo) {
if (err) throw err;
assert.strictEqual(true, defaultData.length > 0);
assert.strictEqual(defaultData.length, defaultInfo.size);
assert.strictEqual('jpeg', defaultInfo.format);
sharp(inputTiffBuffer, { page: 1 }) // 50%-scale copy of page 0
.jpeg()
.toBuffer(function (err, scaledData, scaledInfo) {
if (err) throw err;
assert.strictEqual(true, scaledData.length > 0);
assert.strictEqual(scaledData.length, scaledInfo.size);
assert.strictEqual('jpeg', scaledInfo.format);
assert.strictEqual(defaultInfo.width, scaledInfo.width * 2);
assert.strictEqual(defaultInfo.height, scaledInfo.height * 2);
done();
});
});
});
it('Save TIFF to Buffer', function (done) {
sharp(fixtures.inputTiff)
.resize(320, 240)