/*
 * Test that replSetInitiate and replSetReconfig prohibit zero-vote arbiters,
 * SERVER-13627.
 *
 * @tags: [multiversion_incompatible]
 */

var NewReplicaSetConfigurationIncompatible = 103;
var InvalidReplicaSetConfig = 93;

// Skip db hash check since replsets are assigned invalid configs.
TestData.skipCheckDBHashes = true;

/*
 * Create replica set with 3 nodes, add new node as 0-vote arbiter.
 */
(function addArbiterZeroVotes() {
    var replTest = new ReplSetTest({nodes: 3});
    replTest.startSet();
    replTest.initiate();

    var arbiterConn = replTest.add();
    var admin = replTest.getPrimary().getDB("admin");
    var conf = admin.runCommand({replSetGetConfig: 1}).config;
    conf.members.push({_id: 3, host: arbiterConn.host, arbiterOnly: true, votes: 0});
    conf.version++;

    jsTestLog('Add arbiter with zero votes:');
    var response = admin.runCommand({replSetReconfig: conf});
    assert.commandFailed(response);
    assert.eq(response.code, InvalidReplicaSetConfig);
    assert(/.*arbiter must vote.*/i.test(response.errmsg));

    replTest.stopSet();
})();

/*
 * Replica set with 4 nodes, 2 are arbiters. Reconfigure one with 0 votes.
 */
(function reconfigArbiterZeroVotes() {
    var replTest = new ReplSetTest({nodes: 4});
    replTest.startSet();
    var config = replTest.getReplSetConfig();
    config.members[2].arbiterOnly = true;
    config.members[3].arbiterOnly = true;
    replTest.initiate(config);

    var admin = replTest.getPrimary().getDB("admin");
    var conf = admin.runCommand({replSetGetConfig: 1}).config;

    jsTestLog('Reconfig arbiter with zero votes:');
    conf.members[3].votes = 0;
    conf.version++;
    var response = admin.runCommand({replSetReconfig: conf});
    printjson(response);
    assert.commandFailed(response);
    assert.eq(response.code, InvalidReplicaSetConfig);
    assert(/.*arbiter must vote.*/i.test(response.errmsg));

    replTest.stopSet();
})();

/*
 * replSetInitiate with a 0-vote arbiter.
 */
(function initiateArbiterZeroVotes() {
    var replTest = new ReplSetTest({nodes: 3});
    var conns = replTest.startSet();
    var config = replTest.getReplSetConfig();
    config.members[2].arbiterOnly = true;
    config.members[2].votes = 0;

    var admin = conns[0].getDB("admin");

    jsTestLog('replSetInitiate with 0-vote arbiter:');
    var response = admin.runCommand({replSetInitiate: config});
    printjson(response);
    assert.commandFailed(response);

    // Test for SERVER-15838 wrong error from RS init with 0-vote arbiter.
    assert.eq(response.code, InvalidReplicaSetConfig);
    assert(/.*arbiter must vote.*/i.test(response.errmsg));

    replTest.stopSet();
})();

/*
 * Replica set with max number of voting nodes. Add a 0-vote arbiter.
 */
(function maxVoteEdgeAddArbiterZeroVotes() {
    var replTest = new ReplSetTest({nodes: 7});
    replTest.startSet();
    replTest.initiate();

    var arbiterConn = replTest.add();
    var admin = replTest.getPrimary().getDB("admin");
    var conf = admin.runCommand({replSetGetConfig: 1}).config;
    conf.members.push({_id: 7, host: arbiterConn.host, arbiterOnly: true, votes: 0});
    conf.version++;

    jsTestLog('Add arbiter with zero votes:');
    var response = admin.runCommand({replSetReconfig: conf});
    assert.commandFailed(response);
    assert.eq(response.code, InvalidReplicaSetConfig);
    assert(/.*arbiter must vote.*/i.test(response.errmsg));

    replTest.stopSet();
})();