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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* exported testCachedRelation, testRelated */
+
+// Load the shared-head file first.
+Services.scriptloader.loadSubScript(
+ "chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js",
+ this
+);
+
+// Loading and common.js from accessible/tests/mochitest/ for all tests, as
+// well as promisified-events.js and relations.js.
+/* import-globals-from ../../mochitest/relations.js */
+loadScripts(
+ { name: "common.js", dir: MOCHITESTS_DIR },
+ { name: "promisified-events.js", dir: MOCHITESTS_DIR },
+ { name: "relations.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test the accessible relation.
+ *
+ * @param identifier [in] identifier to get an accessible, may be ID
+ * attribute or DOM element or accessible object
+ * @param relType [in] relation type (see constants above)
+ * @param relatedIdentifiers [in] identifier or array of identifiers of
+ * expected related accessibles
+ */
+async function testCachedRelation(identifier, relType, relatedIdentifiers) {
+ const relDescr = getRelationErrorMsg(identifier, relType);
+ const relDescrStart = getRelationErrorMsg(identifier, relType, true);
+ info(`Testing ${relDescr}`);
+
+ if (!relatedIdentifiers) {
+ await untilCacheOk(function () {
+ let r = getRelationByType(identifier, relType);
+ if (r) {
+ info(`Fetched ${r.targetsCount} relations from cache`);
+ } else {
+ info("Could not fetch relations");
+ }
+ return r && !r.targetsCount;
+ }, relDescrStart + " has no targets, as expected");
+ return;
+ }
+
+ const relatedIds =
+ relatedIdentifiers instanceof Array
+ ? relatedIdentifiers
+ : [relatedIdentifiers];
+ await untilCacheOk(function () {
+ let r = getRelationByType(identifier, relType);
+ if (r) {
+ info(
+ `Fetched ${r.targetsCount} relations from cache, looking for ${relatedIds.length}`
+ );
+ } else {
+ info("Could not fetch relations");
+ }
+
+ return r && r.targetsCount == relatedIds.length;
+ }, "Found correct number of expected relations");
+
+ let targets = [];
+ for (let idx = 0; idx < relatedIds.length; idx++) {
+ targets.push(getAccessible(relatedIds[idx]));
+ }
+
+ if (targets.length != relatedIds.length) {
+ return;
+ }
+
+ await untilCacheOk(function () {
+ const relation = getRelationByType(identifier, relType);
+ const actualTargets = relation ? relation.getTargets() : null;
+ if (!actualTargets) {
+ info("Could not fetch relations");
+ return false;
+ }
+
+ // Check if all given related accessibles are targets of obtained relation.
+ for (let idx = 0; idx < targets.length; idx++) {
+ let isFound = false;
+ for (let relatedAcc of actualTargets.enumerate(Ci.nsIAccessible)) {
+ if (targets[idx] == relatedAcc) {
+ isFound = true;
+ break;
+ }
+ }
+
+ if (!isFound) {
+ info(
+ prettyName(relatedIds[idx]) +
+ " could not be found in relation: " +
+ relDescr
+ );
+ return false;
+ }
+ }
+
+ return true;
+ }, "All given related accessibles are targets of fetched relation.");
+
+ await untilCacheOk(function () {
+ const relation = getRelationByType(identifier, relType);
+ const actualTargets = relation ? relation.getTargets() : null;
+ if (!actualTargets) {
+ info("Could not fetch relations");
+ return false;
+ }
+
+ // Check if all obtained targets are given related accessibles.
+ for (let relatedAcc of actualTargets.enumerate(Ci.nsIAccessible)) {
+ let wasFound = false;
+ for (let idx = 0; idx < targets.length; idx++) {
+ if (relatedAcc == targets[idx]) {
+ wasFound = true;
+ }
+ }
+ if (!wasFound) {
+ info(
+ prettyName(relatedAcc) +
+ " was found, but shouldn't be in relation: " +
+ relDescr
+ );
+ return false;
+ }
+ }
+ return true;
+ }, "No unexpected targets found.");
+}
+
+async function testRelated(
+ browser,
+ accDoc,
+ attr,
+ hostRelation,
+ dependantRelation
+) {
+ let host = findAccessibleChildByID(accDoc, "host");
+ let dependant1 = findAccessibleChildByID(accDoc, "dependant1");
+ let dependant2 = findAccessibleChildByID(accDoc, "dependant2");
+
+ /**
+ * Test data has the format of:
+ * {
+ * desc {String} description for better logging
+ * attrs {?Array} an optional list of attributes to update
+ * expected {Array} expected relation values for dependant1, dependant2
+ * and host respectively.
+ * }
+ */
+ const tests = [
+ {
+ desc: "No attribute",
+ expected: [null, null, null],
+ },
+ {
+ desc: "Set attribute",
+ attrs: [{ key: attr, value: "dependant1" }],
+ expected: [host, null, dependant1],
+ },
+ {
+ desc: "Change attribute",
+ attrs: [{ key: attr, value: "dependant2" }],
+ expected: [null, host, dependant2],
+ },
+ {
+ desc: "Remove attribute",
+ attrs: [{ key: attr }],
+ expected: [null, null, null],
+ },
+ ];
+
+ for (let { desc, attrs, expected } of tests) {
+ info(desc);
+
+ if (attrs) {
+ for (let { key, value } of attrs) {
+ await invokeSetAttribute(browser, "host", key, value);
+ }
+ }
+
+ await testCachedRelation(dependant1, dependantRelation, expected[0]);
+ await testCachedRelation(dependant2, dependantRelation, expected[1]);
+ await testCachedRelation(host, hostRelation, expected[2]);
+ }
+}