Tests: add case for SVG with truncated embedded PNG

Author: lovell

package.json

@@ -80,7 +80,7 @@
     "install": "(node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)",
     "clean": "rm -rf node_modules/ build/ vendor/ .nyc_output/ coverage/ test/fixtures/output.*",
     "test": "semistandard && cpplint && npm run test-unit && npm run test-licensing",
-    "test-unit": "nyc --reporter=lcov --branches=99 mocha --parallel --slow=1000 --timeout=60000 ./test/unit/*.js",
+    "test-unit": "nyc --reporter=lcov --branches=99 mocha --slow=1000 --timeout=60000 ./test/unit/*.js",
     "test-licensing": "license-checker --production --summary --onlyAllow=\"Apache-2.0;BSD;ISC;MIT\"",
     "test-coverage": "./test/coverage/report.sh",
     "test-leak": "./test/leak/leak.sh",

test/unit/svg.js

@@ -1,5 +1,6 @@
 'use strict';
 
+const fs = require('fs');
 const assert = require('assert');
 
 const sharp = require('../../');
@@ -99,4 +100,18 @@ describe('SVG input', function () {
         fixtures.assertSimilar(fixtures.expected('svg-embedded.png'), data, done);
       });
   });
+
+  it('Converts SVG with truncated embedded PNG', async () => {
+    const truncatedPng = fs.readFileSync(fixtures.inputPngTruncated).toString('base64');
+    const svg = `<?xml version="1.0" encoding="UTF-8"?>
+      <svg width="294" height="240" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+        <image width="294" height="240" xlink:href="data:image/png;base64,${truncatedPng}"/>
+      </svg>`;
+
+    const { info } = await sharp(Buffer.from(svg)).toBuffer({ resolveWithObject: true });
+    assert.strictEqual(info.format, 'png');
+    assert.strictEqual(info.width, 294);
+    assert.strictEqual(info.height, 240);
+    assert.strictEqual(info.channels, 4);
+  });
 });