1 files changed, 169 insertions, 0 deletions
diff --git a/testing/web-platform/tests/web-bundle/resources/test-helpers.js b/testing/web-platform/tests/web-bundle/resources/test-helpers.js
new file mode 100644
index 0000000000..5c380c88d8
--- /dev/null
+++ b/testing/web-platform/tests/web-bundle/resources/test-helpers.js
@@ -0,0 +1,169 @@
+// Helper functions used in web-bundle tests.
+
+function addElementAndWaitForLoad(element) {
+  return new Promise((resolve, reject) => {
+    element.onload = () => resolve(element);
+    element.onerror = () => reject(element);
+    document.body.appendChild(element);
+  });
+}
+
+function addElementAndWaitForError(element) {
+  return new Promise((resolve, reject) => {
+    element.onload = () => reject(element);
+    element.onerror = () => resolve(element);
+    document.body.appendChild(element);
+  });
+}
+
+// Evaluates |code| in |iframe|. The following message event handler must be
+// registered on the iframe page:
+//   window.addEventListener(
+//       'message',
+//       (e) => { e.source.postMessage(eval(e.data), e.origin); });
+function evalInIframe(iframe, code) {
+  const message_promise = new Promise((resolve) => {
+      window.addEventListener(
+          'message',
+          (e) => { resolve(e.data); },
+          { once : true });
+    });
+  iframe.contentWindow.postMessage(code,'*');
+  return message_promise;
+}
+
+function fetchAndWaitForReject(url) {
+  return new Promise((resolve, reject) => {
+    fetch(url)
+      .then(() => {
+        reject();
+      })
+      .catch(() => {
+        resolve();
+      });
+  });
+}
+
+function isValidCrossOriginAttribute(crossorigin) {
+  if (crossorigin === undefined)
+    return true;
+  if ((typeof crossorigin) != 'string')
+    return false;
+  const lower_crossorigin = crossorigin.toLowerCase();
+  return (lower_crossorigin === 'anonymous') ||
+         (lower_crossorigin  === 'use-credentials');
+}
+
+function addScriptAndWaitForError(url) {
+  return new Promise((resolve, reject) => {
+    const script = document.createElement("script");
+    script.src = url;
+    script.onload = reject;
+    script.onerror = resolve;
+    document.body.appendChild(script);
+  });
+}
+
+function addScriptAndWaitForExecution(url) {
+  return new Promise((resolve, reject) => {
+    window.scriptLoaded = (val) => {
+      window.scriptLoaded = undefined;
+      resolve(val);
+    };
+    const script = document.createElement("script");
+    script.src = url;
+    script.onerror = reject;
+    document.body.appendChild(script);
+  });
+}
+
+function createWebBundleElement(url, resources, options) {
+  const script = document.createElement("script");
+  script.type = "webbundle";
+  const json_rule  = {"source": url, "resources": resources};
+  if (options && options.scopes) {
+    json_rule.scopes = options.scopes;
+  }
+  if (options && options.credentials) {
+    json_rule.credentials = options.credentials;
+  }
+  script.textContent = JSON.stringify(json_rule);
+  return script;
+}
+
+function addWebBundleElementAndWaitForLoad(url, resources, options) {
+  const element = createWebBundleElement(url, resources, options);
+  return addElementAndWaitForLoad(element);
+}
+
+function addWebBundleElementAndWaitForError(url, resources, options) {
+  const element = createWebBundleElement(url, resources, options);
+  return addElementAndWaitForError(element);
+}
+
+function changeWebBundleUrlInPlace(element, new_url) {
+  if (window.TEST_WEB_BUNDLE_ELEMENT_TYPE != 'link') {
+    throw new Error(
+        'Changing the URL of web bundle is not supported for : ' +
+        window.TEST_WEB_BUNDLE_ELEMENT_TYPE);
+  }
+  element.href= new_url;
+}
+
+function changeWebBundleScopesInPlace(element, scopes) {
+  if (window.TEST_WEB_BUNDLE_ELEMENT_TYPE != 'link') {
+    throw new Error(
+        'Changing the scopes of web bundle is not supported for : ' +
+        window.TEST_WEB_BUNDLE_ELEMENT_TYPE);
+  }
+  element.scopes = '';
+  for (const scope of scopes) {
+    element.scopes.add(scope);
+  }
+}
+
+function changeWebBundleResourcesInPlace(element, resources) {
+  if (window.TEST_WEB_BUNDLE_ELEMENT_TYPE != 'link') {
+    throw new Error(
+        'Changing the resources of web bundle is not supported for : ' +
+        window.TEST_WEB_BUNDLE_ELEMENT_TYPE);
+  }
+  element.resources = '';
+  for (const url of resources) {
+    element.resources.add(url);
+  }
+}
+
+// This function creates a new WebBundle element that has a rule
+// constructed in accordance with a JSON object |new_rule|:
+// 1. Copy over WebBundle rules from an existing element that are
+// not present in |new_rule|, in case of <link> API it is all
+// relevant attributes: href, resources, scopes and crossOrigin;
+// in case of <script> API, it is: source, resources, scopes and
+// credentials.
+// 2. Then create a new WebBundle element from |new_rule| (that now
+// has full information required after 1.) and return it.
+function createNewWebBundleElementWithUpdatedRule(element, new_rule) {
+  if (window.TEST_WEB_BUNDLE_ELEMENT_TYPE == 'link') {
+    if (element.resources && !new_rule.resources)
+      new_rule.resources = Array.from(element.resources);
+    if (element.scopes && !new_rule.scopes)
+      new_rule.scopes = Array.from(element.scopes);
+    if (element.crossOrigin && !new_rule.crossOrigin)
+      new_rule.crossOrigin = element.crossOrigin;
+    if (!new_rule.url)
+      new_rule.url = element.href;
+  } else {
+    const rule = JSON.parse(element.textContent);
+    if (rule.resources && !new_rule.resources)
+      new_rule.resources = rule.resources;
+    if (rule.scopes && !new_rule.scopes)
+      new_rule.scopes = rule.scopes;
+    if (rule.credentials && !new_rule.credentials)
+      new_rule.credentials = rule.credentials;
+    if (!new_rule.url)
+      new_rule.url = rule.source;
+  }
+
+  return createWebBundleElement(new_rule.url, new_rule.resources, new_rule);
+}