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unique2.js
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unique2.js
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// Test unique and dropDups index options.
function checkNprev( np ) {
// getPrevError() is not available sharded.
if ( typeof( myShardingTest ) == 'undefined' ) {
assert.eq( np, db.getPrevError().nPrev );
}
}
t = db.jstests_unique2;
t.drop();
/* test for good behavior when indexing multikeys */
t.insert({k:3});
t.insert({k:[2,3]});
t.insert({k:[4,3]});
t.insert({k:[4,3]}); // tests SERVER-4770
t.ensureIndex({k:1}, {unique:true, dropDups:true});
assert( t.count() == 1 ) ;
assert( t.find().sort({k:1}).toArray().length == 1 ) ;
assert( t.find().sort({k:1}).count() == 1 ) ;
t.drop();
/* same test wtih background:true*/
t.insert({k:3});
t.insert({k:[2,3]});
t.insert({k:[4,3]});
t.insert({k:[4,3]});
t.ensureIndex({k:1}, {unique:true, dropDups:true, background:true});
assert( t.count() == 1 ) ;
assert( t.find().sort({k:1}).toArray().length == 1 ) ;
assert( t.find().sort({k:1}).count() == 1 ) ;
t.drop();
/* */
t.ensureIndex({k:1}, {unique:true});
t.insert({k:3});
t.insert({k:[2,3]});
assert( db.getLastError() );
t.insert({k:[4,3]});
assert( db.getLastError() );
assert( t.count() == 1 ) ;
assert( t.find().sort({k:1}).toArray().length == 1 ) ;
assert( t.find().sort({k:1}).count() == 1 ) ;
t.dropIndexes();
t.insert({k:[2,3]});
t.insert({k:[4,3]});
assert( t.count() == 3 ) ;
// Trigger an error, so we can test n of getPrevError() later.
assert.throws( function() { t.find( {$where:'aaa'} ).itcount(); } );
assert( db.getLastError() );
checkNprev( 1 );
t.ensureIndex({k:1}, {unique:true, dropDups:true});
// Check error flag was not set SERVER-2054.
assert( !db.getLastError() );
// Check that offset of previous error is correct.
checkNprev( 2 );
// Check the dups were dropped.
assert( t.count() == 1 ) ;
assert( t.find().sort({k:1}).toArray().length == 1 ) ;
assert( t.find().sort({k:1}).count() == 1 ) ;
// Check that a new conflicting insert will cause an error.
t.insert({k:[2,3]});
assert( db.getLastError() );
t.drop();
t.insert({k:3});
t.insert({k:[2,3]});
t.insert({k:[4,3]});
assert( t.count() == 3 ) ;
// Now try with a background index op.
// Trigger an error, so we can test n of getPrevError() later.
assert.throws( function() { t.find( {$where:'aaa'} ).itcount(); } );
assert( db.getLastError() );
checkNprev( 1 );
t.ensureIndex({k:1}, {background:true, unique:true, dropDups:true});
// Check error flag was not set SERVER-2054.
assert( !db.getLastError() );
// Check that offset of pervious error is correct.
checkNprev( 2 );
// Check the dups were dropped.
assert( t.count() == 1 ) ;
assert( t.find().sort({k:1}).toArray().length == 1 ) ;
assert( t.find().sort({k:1}).count() == 1 ) ;
// Check that a new conflicting insert will cause an error.
t.insert({k:[2,3]});
assert( db.getLastError() );