testing/web-platform/tests/import-maps/resolving.tentative.html

   1 <!DOCTYPE html>
   2 <html>
   3 <script src="/resources/testharness.js"></script>
   4 <script src="/resources/testharnessreport.js"></script>
   5 <script>
   6 setup({allow_uncaught_exception : true});
   7
   8 // Hacky glue code to run Jest-based tests as WPT tests.
   9 // Only supports resolving.js.
  10 function require(name) {
  11   return {
  12     'URL': URL,
  13     'parseFromString': parseFromString,
  14     'resolve': resolve
  15   };
  16 }
  17
  18 function expect(v) {
  19   return {
  20     toMatchURL: expected => assert_equals(v, expected),
  21     toThrow: expected => assert_throws(expected(), v)
  22   };
  23 }
  24
  25 let current_message = '';
  26 function describe(message, f) {
  27   const old = current_message;
  28   if (current_message !== '') {
  29     current_message += ' / ';
  30   }
  31   current_message += message;
  32   f();
  33   current_message = old;
  34 }
  35 function it(message, f) {
  36   const old = current_message;
  37   if (current_message !== '') {
  38     current_message += ' / ';
  39   }
  40   current_message += message;
  41   test(t => t.step_func(f)(), current_message);
  42   current_message = old;
  43 }
  44
  45 // Creates a new Document (via <iframe>) and add an inline import map.
  46 // Currently document.write() is used to make everything synchronous, which
  47 // is just needed for running the existing Jest-based tests easily.
  48 function parseFromString(mapString, mapBaseURL) {
  49   const iframe = document.createElement('iframe');
  50   document.body.appendChild(iframe);
  51   iframe.contentDocument.write(`
  52     <base href="${mapBaseURL}">
  53     <script>
  54     let isError = false;
  55     function onError() {
  56       isError = true;
  57     }
  58     </sc` + `ript>
  59     <script type="importmap" onerror="onError()">
  60     ${mapString}
  61     </sc` + `ript>
  62   `);
  63   iframe.contentDocument.close();
  64   return iframe;
  65 }
  66
  67 // URL resolution is tested using Chromium's `internals`.
  68 // TODO(hiroshige): Remove the Chromium-specific dependency.
  69 function resolve(specifier, map, baseURL) {
  70   return internals.resolveModuleSpecifier(specifier,
  71                                           baseURL,
  72                                           map.contentDocument);
  73 }
  74
  75 </script>
  76
  77 <!--
  78 resolving.js is
  79 https://github.com/WICG/import-maps/blob/master/reference-implementation/__tests__/resolving.js
  80 -->
  81 <script type="module" src="resources/resolving.js"></script>