add ll tests to check if all expected members are in memberlist

also move verify-device use case to timeline to reuse memberlist
query for this test.

src/scenarios/e2e-encryption.js

@@ -25,7 +25,7 @@ const {receiveMessage} = require('../usecases/timeline');
 const createRoom = require('../usecases/create-room');
 const changeRoomSettings = require('../usecases/room-settings');
 const {getE2EDeviceFromSettings} = require('../usecases/settings');
-const verifyDeviceForUser = require('../usecases/verify-device');
+const {verifyDeviceForUser} = require('../usecases/memberlist');
 
 module.exports = async function e2eEncryptionScenarios(alice, bob) {
     console.log(" creating an e2e encrypted room and join through invite:");

src/scenarios/lazy-loading.js

@@ -23,14 +23,17 @@ const {
     scrollToTimelineTop
 } = require('../usecases/timeline');
 const createRoom = require('../usecases/create-room');
+const {getMembersInMemberlist} = require('../usecases/memberlist');
 const changeRoomSettings = require('../usecases/room-settings');
 const {enableLazyLoading} = require('../usecases/settings');
+const assert = require('assert');
 
 module.exports = async function lazyLoadingScenarios(alice, bob, charlies) {
     console.log(" creating a room for lazy loading member scenarios:");
     await enableLazyLoading(alice);
     await setupRoomWithBobAliceAndCharlies(alice, bob, charlies);
     await checkPaginatedDisplayNames(alice, charlies);
+    await checkMemberList(alice, charlies);
 }
 
 const room = "Lazy Loading Test";
@@ -69,3 +72,16 @@ async function checkPaginatedDisplayNames(alice, charlies) {
     }, []);
     await checkTimelineContains(alice, expectedMessages, "Charly #1-10");
 }
+
+async function checkMemberList(alice, charlies) {
+    alice.log.step("checks the memberlist contains herself, bob and all charlies");
+    const displayNames = (await getMembersInMemberlist(alice)).map((m) => m.displayName);
+    assert(displayNames.includes("alice"));
+    assert(displayNames.includes("bob"));
+    charlies.sessions.forEach((charly) => {
+        assert(displayNames.includes(charly.displayName()),
+            `${charly.displayName()} should be in the member list, ` +
+            `only have ${displayNames}`);
+    });
+    alice.log.done();
+}

src/usecases/memberlist.js

@@ -16,16 +16,13 @@ limitations under the License.
 
 const assert = require('assert');
 
-module.exports = async function verifyDeviceForUser(session, name, expectedDevice) {
+module.exports.verifyDeviceForUser = async function(session, name, expectedDevice) {
     session.log.step(`verifies e2e device for ${name}`);
-    const memberNameElements = await session.queryAll(".mx_MemberList .mx_EntityTile_name");
-    const membersAndNames = await Promise.all(memberNameElements.map(async (el) => {
-        return [el, await session.innerText(el)];
-    }));
-    const matchingMember = membersAndNames.filter(([el, text]) => {
-        return text === name;
-    }).map(([el]) => el)[0];
-    await matchingMember.click();
+    const membersAndNames = await getMembersInMemberlist(session);
+    const matchingLabel = membersAndNames.filter((m) => {
+        return m.displayName === name;
+    }).map((m) => m.label)[0];
+    await matchingLabel.click();
     const firstVerifyButton = await session.waitAndQuery(".mx_MemberDeviceInfo_verify");
     await firstVerifyButton.click();
     const dialogCodeFields = await session.waitAndQueryAll(".mx_QuestionDialog code");
@@ -40,3 +37,12 @@ module.exports = async function verifyDeviceForUser(session, name, expectedDevic
     await closeMemberInfo.click();
     session.log.done();
 }
+
+async function getMembersInMemberlist(session) {
+    const memberNameElements = await session.waitAndQueryAll(".mx_MemberList .mx_EntityTile_name");
+    return Promise.all(memberNameElements.map(async (el) => {
+        return {label: el, displayName: await session.innerText(el)};
+    }));
+}
+
+module.exports.getMembersInMemberlist = getMembersInMemberlist;