### POST /streaming/account/{{accountId}}/group/ (Create Stereo Pair via Marge)
###
### Replays the exact shape a SoundTouch 10 master sends when it forwards the
### addGroup payload to its configured Marge server while forming a stereo pair
### (issue #252). Notable properties of the wire contract this exercises:
###
###   * URL has a trailing slash ("/group/", not "/group").
###   * <groupRole> elements have no <ipAddress>.
###   * No <senderIPAddress> (this is the master-bound payload).
###   * No numeric group <id> attribute and no <status> on the request.
###   * Content-Type is the vendor-specific media type.
###
### The speaker retries this POST every 15 s while in AddingMaster state; if
### AfterTouch doesn't accept it, the group never completes and reverts to
### NoGroup after a timeout.
POST {{host}}/streaming/account/{{accountId}}/group/
Content-Type: application/vnd.bose.streaming-v1.2+xml
Authorization: Bearer {{token}}
User-Agent: Bose_Lisa/27.0.6
Accept: application/vnd.bose.streaming-v1.2+xml

<?xml version="1.0" encoding="UTF-8" ?>
<group>
    <masterDeviceId>{{deviceId}}</masterDeviceId>
    <name>TEST</name>
    <roles>
        <groupRole>
            <deviceId>{{deviceId}}</deviceId>
            <role>LEFT</role>
        </groupRole>
        <groupRole>
            <deviceId>{{macAddress2}}</deviceId>
            <role>RIGHT</role>
        </groupRole>
    </roles>
</group>

> {%
    client.test("Group created successfully", function() {
        client.assert(response.status === 201, "Response status should be 201 Created, got " + response.status);
        client.assert(response.contentType.mimeType === "application/vnd.bose.streaming-v1.2+xml",
            "Response Content-Type should be application/vnd.bose.streaming-v1.2+xml, got '" + response.contentType.mimeType + "'");
        client.assert(response.headers.valueOf("Location") !== null,
            "Response should include a Location header pointing to the new group");
        client.assert(response.headers.valueOf("Location").includes("/account/" + client.variables.environment.get("accountId") + "/group/"),
            "Location header should reference the new group under the account, got '" + response.headers.valueOf("Location") + "'");
    });

    client.test("Response body echoes the requested group", function() {
        const doc = response.body;
        const group = doc.getElementsByTagName("group")[0];
        client.assert(group !== undefined, "Response body should contain <group>");

        const master = group.getElementsByTagName("masterDeviceId")[0];
        client.assert(master !== undefined, "Response body should contain <masterDeviceId>");
        client.assert(master.textContent === client.variables.environment.get("deviceId"),
            "masterDeviceId should match the request, got '" + master.textContent + "'");

        const name = group.getElementsByTagName("name")[0];
        client.assert(name !== undefined, "Response body should contain <name>");
        client.assert(name.textContent === "TEST", "name should match the requested 'TEST', got '" + name.textContent + "'");

        const roles = group.getElementsByTagName("groupRole");
        client.assert(roles.length === 2, "Response should contain exactly 2 <groupRole> entries, got " + roles.length);
    });
%}