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// SERVER-2829 Test arrays matching themselves within a $in expression.
t = db.jstests_in8;
t.drop();
t.save( {key: [1]} );
t.save( {key: ['1']} );
t.save( {key: [[2]]} );
function doTest() {
assert.eq( 1, t.count( {key:[1]} ) );
assert.eq( 1, t.count( {key:{$in:[[1]]}} ) );
assert.eq( 1, t.count( {key:{$in:[[1]],$ne:[2]}} ) );
assert.eq( 1, t.count( {key:{$in:[['1']],$type:2}} ) );
assert.eq( 1, t.count( {key:['1']} ) );
assert.eq( 1, t.count( {key:{$in:[['1']]}} ) );
assert.eq( 1, t.count( {key:[2]} ) );
assert.eq( 1, t.count( {key:{$in:[[2]]}} ) );
}
doTest();
t.ensureIndex( {key:1} );
doTest();
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