mongodb/jstests/repl/repl6.js

// Test one master replicating to two slaves

var baseName = "jstests_repl6test";

soonCount = function( m, count ) {
    assert.soon( function() { 
                return m.getDB( baseName ).a.find().count() == count; 
                }, "expected count: " + count + " from : " + m );    
}

doTest = function( signal ) {

    ports = allocatePorts( 3 );
    
    ms1 = new ReplTest( "repl6tests-1", [ ports[ 0 ], ports[ 1 ] ] );
    ms2 = new ReplTest( "repl6tests-2", [ ports[ 0 ], ports[ 2 ] ] );

    m = ms1.start( true );
    s1 = ms1.start( false );
    s2 = ms2.start( false );
    
    am = m.getDB( baseName ).a
    
    for( i = 0; i < 1000; ++i )
        am.save( { _id: new ObjectId(), i: i } );
    
    soonCount( s1, 1000 );
    soonCount( s2, 1000 );

    check = function( as ) {
        assert.eq( 1, as.find( { i: 0 } ).count() );
        assert.eq( 1, as.find( { i: 999 } ).count() );        
    }
    
    as = s1.getDB( baseName ).a
    check( as );
    as = s2.getDB( baseName ).a    
    check( as );    

    ms1.stop( false, signal );
    ms2.stop( false, signal );
    
    for( i = 1000; i < 1010; ++i )
        am.save( { _id: new ObjectId(), i: i } );

    s1 = ms1.start( false, null, true );
    soonCount( s1, 1010 );
    as = s1.getDB( baseName ).a
    assert.eq( 1, as.find( { i: 1009 } ).count() );

    ms1.stop( true, signal );

    m = ms1.start( true, null, true );
    am = m.getDB( baseName ).a
    
    for( i = 1010; i < 1020; ++i )
        am.save( { _id: new ObjectId(), i: i } );
    
    soonCount( s1, 1020 );
    assert.eq( 1, as.find( { i: 1019 } ).count() );

    s2 = ms2.start( false, null, true );
    soonCount( s2, 1020 );
    as = s2.getDB( baseName ).a
    assert.eq( 1, as.find( { i: 1009 } ).count() );
    assert.eq( 1, as.find( { i: 1019 } ).count() );

    ms1.stop();
    ms2.stop( false );
}

doTest( 15 ); // SIGTERM
doTest( 9 );  // SIGKILL