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/*
* SERVER-6165: use of an integer valued double in a $mod expression can cause an incorrect result
*
* This test validates the SERVER-6165 ticket. Return a long if $mod is operating on a long and a
* double. Previously it would be forced into an int and convert improperly.
*/
/*
* 1) Clear and create testing db
* 2) Run aggregations testing various combinations of number types with the $mod operator
* 3) Assert that the results are what we expected
*/
// Clear db
db.s6165.drop();
db.s6165.save({});
// Aggregate checking various combinations of number types
// The $match portion ensures they are of the correct type as the shell turns
// the ints back to doubles at the end so we can not check types with asserts
var s6165 = db.s6165.aggregate(
{ $project: {
_id: 0,
dub_dub: {$mod: [138.5, 3.0]},
dub_int: {$mod: [138.5, NumberLong(3)]},
dub_long: {$mod: [138.5, NumberInt(3)]},
int_dub: {$mod: [NumberInt(8), 3.25]},
int_dubint: {$mod: [NumberInt(8), 3.0]},
int_int: {$mod: [NumberInt(8), NumberInt(3)]},
int_long: {$mod: [NumberInt(8), NumberLong(3)]},
long_dub: {$mod: [NumberLong(8), 3.25]},
long_dubint: {$mod: [NumberLong(8), 3.0]},
long_dublong: {$mod: [NumberLong(500000000000), 450000000000.0]},
long_int: {$mod: [NumberLong(8), NumberInt(3)]},
long_long: {$mod: [NumberLong(8), NumberLong(3)]},
verylong_verylong: {$mod: [NumberLong(800000000000), NumberLong(300000000000)]}
}},
{ $match: {
// 1 is NumberDouble
dub_dub: {$type: 1},
dub_int: {$type: 1},
dub_long: {$type: 1},
int_dub: {$type: 1},
// 16 is NumberInt
int_dubint: {$type: 16},
int_int: {$type: 16},
// 18 is NumberLong
int_long: {$type: 18},
long_dub: {$type: 1},
long_dubint: {$type: 18},
long_dublong: {$type: 1},
long_int: {$type: 18},
long_long: {$type: 18},
verylong_verylong: {$type: 18}
}}
);
// Correct answers (it is mainly the types that are important here)
var s6165result = [
{
dub_dub: 0.5,
dub_int: 0.5,
dub_long: 0.5,
int_dub: 1.5,
int_dubint: 2,
int_int: 2,
int_long: NumberLong(2),
long_dub: 1.5,
long_dubint: NumberLong(2),
long_dublong: 50000000000,
long_int: NumberLong(2),
long_long: NumberLong(2),
verylong_verylong: NumberLong(200000000000)
}
];
// Assert
assert.eq(s6165.toArray(), s6165result, 's6165 failed');
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