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<!DOCTYPE HTML>
<html>
<head>
<title>Test for Messaging Layer Security</title>
<!-- SimpleTest Helpers -->
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<!-- Local Helpers -->
<script src="head_mls.js"></script>
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
async function test_group_remove() {
const mls = new MLS();
// Generate Signature KeyPairs for Alice and Bob
let alice = await mls.generateIdentity();
let bob = await mls.generateIdentity();
// Generate Credentials for Alice and Bob
let credential_alice = await mls.generateCredential("alice");
let credential_bob = await mls.generateCredential("bob");
// Generate a KeyPackage for Bob
let kp_bob = await mls.generateKeyPackage(bob, credential_bob);
// Creation of a Group by Alice
let group = await mls.groupCreate(alice, credential_alice);
// Get membership of the group
let membership_0 = await group.details();
// Test that the returned group membership is not null
info("Membership @ Epoch 0:", JSON.stringify(membership_0));
is(membership_0.members.length, 1, "There should be one member in the group");
// Alice adds Bob to a group
let commit_output = await group.add(kp_bob);
// Test that the returned commit output is not null
info("Commit 1:", byteArrayToHexString(commit_output.commit));
isnot(byteArrayToHexString(commit_output.commit), "", "Commit != ''");
// Alice receives the commit
await group.receive(commit_output.commit);
// Get membership of the group
let membership_1 = await group.details();
// Test that the returned group membership is not null
info("Membership @ Epoch 1:", JSON.stringify(membership_1));
is(membership_1.members.length, 2, "There should be two members in the group");
// Alice removes Bob from the group
let commit_output_2 = await group.remove(bob);
// Alice receives the commit
await group.receive(commit_output_2.commit);
// Get membership of the group
let membership_2 = await group.details();
// Test that the returned group membership is not null
info("Membership @ Epoch 2:", JSON.stringify(membership_2));
is(membership_2.members.length, 1, "There should be one member in the group");
// Verify that Alice is the only member in the group at epoch 0
is(membership_0.members.length, 1, "Alice should be alone in the group at epoch 0");
is(membership_0.members.some(member => byteArrayToHexString(member.clientId) === byteArrayToHexString(alice.content)), true, "Alice should be alone in the group at epoch 0");
// Verify that both Alice and Bob are members in the group at epoch 1
is(membership_1.members.length, 2, "There should be two members in the group at epoch 1");
is(membership_1.members.some(member => byteArrayToHexString(member.clientId) === byteArrayToHexString(bob.content)), true, "Bob should be in the group at epoch 1");
is(membership_1.members.some(member => byteArrayToHexString(member.clientId) === byteArrayToHexString(alice.content)), true, "Alice should be in the group at epoch 1");
// Verify that Alice is the only member in the group at epoch 2
is(membership_2.members.length, 1, "Alice should be alone in the group at epoch 2");
is(membership_2.members.some(member => byteArrayToHexString(member.clientId) === byteArrayToHexString(alice.content)), true, "Alice should be alone in the group at epoch 2");
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
test_group_remove();
</script>
</pre>
</body>
</html>
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