Quelle netinfo-basics.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/testing/web-platform/tests/netinfo/netinfo-basics.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>NetInfo basic functionality</title>
<link rel="help" href="https://wicg.github.io/netinfo/">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<script>
test(function() {
      assert_in_array(navigator.connection.type,  ["bluetooth", "cellular",
        "ethernet", "mixed", "none", "other", "unknown", "wifi", "wimax"], 'type is unexpected');
}, "type attribute");

test(function() {
      assert_in_array(navigator.connection.saveData,  [false, true], 'saveData is unexpected');
}, "saveData attribute");

test(function() {
      assert_greater_than_equal(navigator.connection.downlinkMax, 0);
}, "downlinkMax attribute");

test(function() {
      assert_in_array(navigator.connection.effectiveType, ["slow-2g", "2g",
          "3g", "4g"], 'effectiveType is unexpected');
}, "effectiveType attribute");

test(function() {
      var rtt  = navigator.connection.rtt;
      assert_greater_than_equal(rtt, 0);
      assert_less_than_equal(rtt, 3000);
      assert_equals(rtt % 50, 0, 'rtt must be a multiple of 50 msec');
}, "rtt attribute");

test(function() {
  var downlinkKbps  = navigator.connection.downlink * 1000;
  assert_greater_than_equal(downlinkKbps, 0);
  assert_less_than_equal(downlinkKbps, 10000);

  // Verify that downlinkKbps is a multiple of 50.
  var quotient = parseInt(downlinkKbps  / 50, 10);
  // mod is the remainder left after dividing downlinkKbps by 50 while
  // restricting the quotient to an integer. For example, if downlinkKbps is
  // 1050, then mod will be 0. If downlinkKpbps is 1030, mod will be 30.
  var mod = downlinkKbps - 50 * quotient;
  assert_less_than_equal(0.0, mod, 'mod outside the range');
  assert_greater_than(50.0, mod, 'mod outside the range');
  // It is possible that mod is not exactly 0 because of floating point
  // computations. e.g., downlinkKbps may be 99.999999, in which case mod
  // will be 49.999999.
  assert_true(mod < 1e-5 || (50-mod) < 1e-5, 'downlink must be a multiple of 50 kbps');
}, "downlink attribute");
</script>

Messung V0.5

¤ Dauer der Verarbeitung: 0.3 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.