codePoint: Int,
    encoding: Encoding,
    component: Component,
  ) {
    val expected = component.canonicalize(encoding.encode(codePoint))
    val urlString = component.urlString(expected)
    val url = urlString.toHttpUrl()
    val actual = component.encodedValue(url)
    if (actual != expected) {
      fail("Encoding $component $codePoint using $encoding: '$actual' != '$expected'")
    }
  }

      }

      // Find URL pointing to base of class path.
      String urlString = finalizerUrl.toString();
      if (!urlString.endsWith(finalizerPath)) {
        throw new IOException("Unsupported path style: " + urlString);
      }
      urlString = urlString.substring(0, urlString.length() - finalizerPath.length());
      return new URL(finalizerUrl, urlString);
    }

        String urlString = fragment.toURLString();
        assertNotNull(urlString);
        assertTrue(urlString.contains("text="));
        assertTrue(urlString.contains("start"));

        fragment = new ViewHelper.TextFragment(null, "start", null, null);
        urlString = fragment.toURLString();
        assertNotNull(urlString);
        assertTrue(urlString.contains("text=start"));

    val encoded = encoding.encode(codePoint)
    val httpUrl = component.urlString(encoded).toHttpUrl()
    val uri = httpUrl.toUri()
    val toAndFromUri = uri.toHttpUrlOrNull()
    val uriStripped = uriStrippedCodePoints.indexOf(codePointString) != -1
    if (uriStripped) {
      if (uri.toString() != component.urlString("")) {
        fail("Encoding $component $codePoint using $encoding")
      }
      return