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Expose erode and dilate operations #4243

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This commit is contained in:
Quentin Pinçon
2025-03-27 12:59:02 +00:00
committed by Lovell Fuller
parent 03e1b19764
commit 031c808aa5
17 changed files with 249 additions and 0 deletions
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38
test/unit/dilate.js Normal file
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'use strict';
const assert = require('assert');
const sharp = require('../../');
const fixtures = require('../fixtures');
describe('Dilate', function () {
it('dilate 1 png', function (done) {
sharp(fixtures.inputPngDotAndLines)
.dilate(1)
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual('png', info.format);
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
fixtures.assertSimilar(fixtures.expected('dilate-1.png'), data, done);
});
});
it('dilate 1 png - default width', function (done) {
sharp(fixtures.inputPngDotAndLines)
.dilate()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual('png', info.format);
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
fixtures.assertSimilar(fixtures.expected('dilate-1.png'), data, done);
});
});
it('invalid dilation width', function () {
assert.throws(function () {
sharp(fixtures.inputJpg).dilate(-1);
});
});
});

38
test/unit/erode.js Normal file
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'use strict';
const assert = require('assert');
const sharp = require('../../');
const fixtures = require('../fixtures');
describe('Erode', function () {
it('erode 1 png', function (done) {
sharp(fixtures.inputPngDotAndLines)
.erode(1)
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual('png', info.format);
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
fixtures.assertSimilar(fixtures.expected('erode-1.png'), data, done);
});
});
it('erode 1 png - default width', function (done) {
sharp(fixtures.inputPngDotAndLines)
.erode()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual('png', info.format);
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
fixtures.assertSimilar(fixtures.expected('erode-1.png'), data, done);
});
});
it('invalid erosion width', function () {
assert.throws(function () {
sharp(fixtures.inputJpg).erode(-1);
});
});
});