Function testBuf

src/workerd/api/node/tests/string-decoder-test.js:387–409

(encoding, buf)

    }

    function testBuf(encoding, buf) {
      // Write one byte at a time.
      let s = new StringDecoder(encoding);
      let res1 = '';
      for (let i = 0; i < buf.length; i++) {
        res1 += s.write(buf.slice(i, i + 1));
      }
      res1 += s.end();

      // Write the whole buffer at once.
      let res2 = '';
      s = new StringDecoder(encoding);
      res2 += s.write(buf);
      res2 += s.end();

      // .toString() on the buffer
      const res3 = buf.toString(encoding);

      // One byte at a time should match toString
      strictEqual(res1, res3);
      // All bytes at once should match toString
      strictEqual(res2, res3);
    }

    function testEnd(encoding, incomplete, next, expected) {
      let res = '';