diff options
Diffstat (limited to 'src/mongo/dbtests/jsobjhashingtests.cpp')
| -rw-r--r-- | src/mongo/dbtests/jsobjhashingtests.cpp | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/src/mongo/dbtests/jsobjhashingtests.cpp b/src/mongo/dbtests/jsobjhashingtests.cpp deleted file mode 100644 index 9ed92ae70e0..00000000000 --- a/src/mongo/dbtests/jsobjhashingtests.cpp +++ /dev/null @@ -1,170 +0,0 @@ -// jsobjhashingtests.cpp - Tests for hasher.{h,cpp} code -// - -/** - * Copyright (C) 2012 10gen Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License, version 3, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - - -#include "mongo/db/hasher.h" -#include "mongo/db/json.h" -#include "mongo/dbtests/dbtests.h" - -namespace JsobjHashingTests { - - class BSONElementHashingTest { - public: - void run() { - int seed = 0; - - //test different oids hash to different things - long long int oidHash = BSONElementHasher::hash64( - BSONObjBuilder().genOID().obj().firstElement() , seed ); - long long int oidHash2 = BSONElementHasher::hash64( - BSONObjBuilder().genOID().obj().firstElement() , seed ); - long long int oidHash3 = BSONElementHasher::hash64( - BSONObjBuilder().genOID().obj().firstElement() , seed ); - - ASSERT_NOT_EQUALS( oidHash , oidHash2 ); - ASSERT_NOT_EQUALS( oidHash , oidHash3 ); - ASSERT_NOT_EQUALS( oidHash3 , oidHash2 ); - - //test 32-bit ints, 64-bit ints, doubles hash to same thing - int i = 3; - BSONObj p1 = BSON("a" << i); - long long int intHash = BSONElementHasher::hash64( p1.firstElement() , seed ); - - long long int ilong = 3; - BSONObj p2 = BSON("a" << ilong); - long long int longHash = BSONElementHasher::hash64( p2.firstElement() , seed ); - - double d = 3.1; - BSONObj p3 = BSON("a" << d); - long long int doubleHash = BSONElementHasher::hash64( p3.firstElement() , seed ); - - ASSERT_EQUALS( intHash, longHash ); - ASSERT_EQUALS( doubleHash, longHash ); - - //test different ints don't hash to same thing - BSONObj p4 = BSON("a" << 4); - long long int intHash4 = BSONElementHasher::hash64( p4.firstElement() , seed ); - ASSERT_NOT_EQUALS( intHash , intHash4 ); - - //test seed makes a difference - long long int intHash4Seed = BSONElementHasher::hash64( p4.firstElement() , 1 ); - ASSERT_NOT_EQUALS( intHash4 , intHash4Seed ); - - //test strings hash to different things - BSONObj p5 = BSON("a" << "3"); - long long int stringHash = BSONElementHasher::hash64( p5.firstElement() , seed ); - ASSERT_NOT_EQUALS( intHash , stringHash ); - - //test regexps and strings hash to different things - BSONObjBuilder b; - b.appendRegex("a","3"); - long long int regexHash = BSONElementHasher::hash64( b.obj().firstElement() , seed ); - ASSERT_NOT_EQUALS( stringHash , regexHash ); - - //test arrays and subobject hash to different things - BSONObj p6 = fromjson("{a : {'0' : 0 , '1' : 1}}"); - BSONObj p7 = fromjson("{a : [0,1]}"); - ASSERT_NOT_EQUALS( - BSONElementHasher::hash64( p6.firstElement() , seed ) , - BSONElementHasher::hash64( p7.firstElement() , seed ) - ); - - //testing sub-document grouping - BSONObj p8 = fromjson("{x : {a : {}, b : 1}}"); - BSONObj p9 = fromjson("{x : {a : {b : 1}}}"); - ASSERT_NOT_EQUALS( - BSONElementHasher::hash64( p8.firstElement() , seed ) , - BSONElementHasher::hash64( p9.firstElement() , seed ) - ); - - //testing codeWscope scope squashing - BSONObjBuilder b1; - b1.appendCodeWScope("a","print('this is some stupid code')", BSON("a" << 3)); - BSONObj p10 = b1.obj(); - - BSONObjBuilder b2; - b2.appendCodeWScope("a","print('this is some stupid code')", BSON("a" << 3.1)); - - BSONObjBuilder b3; - b3.appendCodeWScope("a","print('this is \nsome stupider code')", BSON("a" << 3)); - ASSERT_EQUALS( - BSONElementHasher::hash64( p10.firstElement() , seed ) , - BSONElementHasher::hash64( b2.obj().firstElement() , seed ) - ); - ASSERT_NOT_EQUALS( - BSONElementHasher::hash64( p10.firstElement() , seed ) , - BSONElementHasher::hash64( b3.obj().firstElement() , seed ) - ); - - //test some recursive squashing - BSONObj p11 = fromjson("{x : {a : 3 , b : [ 3.1, {c : 3}]}}"); - BSONObj p12 = fromjson("{x : {a : 3.1 , b : [3, {c : 3.0}]}}"); - ASSERT_EQUALS( - BSONElementHasher::hash64( p11.firstElement() , seed ) , - BSONElementHasher::hash64( p12.firstElement() , seed ) - ); - - //test minkey and maxkey don't hash to same thing - BSONObj p13 = BSON("a" << MAXKEY); - BSONObj p14 = BSON("a" << MINKEY); - ASSERT_NOT_EQUALS( - BSONElementHasher::hash64( p13.firstElement() , seed ) , - BSONElementHasher::hash64( p14.firstElement() , seed ) - ); - - //test squashing very large doubles and very small doubles - long long maxInt = std::numeric_limits<long long>::max(); - double smallerDouble = maxInt/2; - double biggerDouble = ( (double)maxInt )*( (double)maxInt ); - BSONObj p15 = BSON("a" << maxInt ); - BSONObj p16 = BSON("a" << smallerDouble ); - BSONObj p17 = BSON("a" << biggerDouble ); - ASSERT_NOT_EQUALS( - BSONElementHasher::hash64( p15.firstElement() , seed ) , - BSONElementHasher::hash64( p16.firstElement() , seed ) - ); - ASSERT_EQUALS( - BSONElementHasher::hash64( p15.firstElement() , seed ) , - BSONElementHasher::hash64( p17.firstElement() , seed ) - ); - - long long minInt = std::numeric_limits<long long>::min(); - double negativeDouble = -( (double)maxInt )*( (double)maxInt ); - BSONObj p18 = BSON("a" << minInt ); - BSONObj p19 = BSON("a" << negativeDouble ); - ASSERT_EQUALS( - BSONElementHasher::hash64( p18.firstElement() , seed ) , - BSONElementHasher::hash64( p19.firstElement() , seed ) - ); - - } - }; - - class All : public Suite { - public: - All() : Suite( "jsobjhashing" ) { - } - - void setupTests() { - add< BSONElementHashingTest >(); - } - } myall; - -} // namespace JsobjTests - |