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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/document/bucket/bucketidfactory.h>
#include <vespa/document/base/documentid.h>
#include <vespa/document/base/globalid.h>
#include <vespa/vespalib/util/random.h>
#include <vespa/vespalib/stllike/asciistream.h>
#include <gtest/gtest.h>
namespace document {
class GlobalIdTest : public ::testing::Test {
protected:
void verifyGlobalIdRange(const std::vector<DocumentId>& ids,
uint32_t countBits);
};
TEST_F(GlobalIdTest, testNormalUsage)
{
const char* emptystring = "\0\0\0\0\0\0\0\0\0\0\0\0";
const char* teststring = "1234567890ABCDEF";
EXPECT_TRUE(strlen(teststring) > GlobalId::LENGTH);
{ // Test empty global id
GlobalId id;
for (uint32_t i=0; i<GlobalId::LENGTH; ++i) {
EXPECT_EQ((unsigned char) '\0', id.get()[i]);
}
GlobalId id2(emptystring);
EXPECT_EQ(id, id2);
EXPECT_TRUE(!(id != id2));
EXPECT_TRUE(!(id < id2) && !(id2 < id));
EXPECT_EQ(std::string(emptystring, GlobalId::LENGTH),
std::string((const char*) id.get(), GlobalId::LENGTH));
}
{ // Test non-empty global id
GlobalId empty;
GlobalId initialempty;
initialempty.set(teststring);
GlobalId id(teststring);
EXPECT_EQ(id, initialempty);
EXPECT_TRUE(!(id != initialempty));
EXPECT_TRUE(!(id < initialempty) && !(initialempty < id));
EXPECT_TRUE(id != empty);
EXPECT_TRUE(!(id == empty));
EXPECT_TRUE(!(id < empty) && (empty < id));
EXPECT_EQ(
std::string(teststring, GlobalId::LENGTH),
std::string((const char*) id.get(), GlobalId::LENGTH));
EXPECT_EQ(std::string(teststring, GlobalId::LENGTH),
std::string((const char*) initialempty.get(),
GlobalId::LENGTH));
}
{ // Test printing and parsing
GlobalId id1("LIN!#LNKASD#!MYL#&NK");
EXPECT_EQ(vespalib::string("gid(0x4c494e21234c4e4b41534423)"),
id1.toString());
GlobalId id2 = GlobalId::parse(id1.toString());
EXPECT_EQ(id1, id2);
// Verify string representation too, to verify that operator== works
EXPECT_EQ(vespalib::string("gid(0x4c494e21234c4e4b41534423)"),
id2.toString());
}
}
namespace {
void verifyDocumentId(const std::string& s) {
document::DocumentId did(s);
BucketIdFactory factory;
BucketId bid = factory.getBucketId(did);
GlobalId gid = did.getGlobalId();
BucketId generated = gid.convertToBucketId();
//std::cerr << bid << ", " << generated << "\n";
if (bid != generated) {
FAIL() << "Document id " << s << " with gid " << gid
<< " belongs to bucket " << bid
<< ", but globalid convert function generated bucketid "
<< generated;
}
}
}
TEST_F(GlobalIdTest, testBucketIdConversion)
{
verifyDocumentId("id:ns:test:n=1:abc");
verifyDocumentId("id:ns:test:n=1000:abc");
verifyDocumentId("id:hsgf:test:n=18446744073700000000:dfdfsdfg");
verifyDocumentId("id:ns:mytype:g=somegroup:hmm");
verifyDocumentId("id:ns:test::");
verifyDocumentId("id:myns:test::http://foo.bar");
verifyDocumentId("id:ns:test::jsrthsdf:a234aleingzldkifvasdfgadf");
}
void
GlobalIdTest::verifyGlobalIdRange(const std::vector<DocumentId>& ids, uint32_t countBits)
{
BucketIdFactory factory;
for (uint32_t i=0, n=ids.size(); i<n; ++i) {
// Create the bucket this document would be in with given
// countbits
BucketId bucket(factory.getBucketId(ids[i]));
bucket.setUsedBits(countBits);
bucket = bucket.stripUnused();
// Get the min and max GIDs for this bucket
GlobalId first = GlobalId::calculateFirstInBucket(bucket);
GlobalId last = GlobalId::calculateLastInBucket(bucket);
// For each document in set, verify that they are within
// limits if they are contained in bucket.
for (uint32_t j=0; j<n; ++j) {
BucketId bid(factory.getBucketId(ids[j]));
GlobalId gid(ids[j].getGlobalId());
uint64_t gidKey = gid.convertToBucketId().toKey();
if (bucket.contains(bid)) {
if ((gidKey < last.convertToBucketId().toKey()) || (gidKey > last.convertToBucketId().toKey())) {
std::ostringstream msg;
msg << gid << " should be in the range " << first
<< " - " << last;
msg << ", as bucket " << gid.convertToBucketId()
<< " should be in the range "
<< first.convertToBucketId() << " - "
<< last.convertToBucketId() << "\n";
msg << ", reverted " << std::hex
<< gid.convertToBucketId().toKey()
<< " should be in the range "
<< first.convertToBucketId().toKey() << " - "
<< last.convertToBucketId().toKey() << "\n";
EXPECT_TRUE(gid.convertToBucketId().toKey() >= first.convertToBucketId().toKey()) << msg.str();
EXPECT_TRUE(gid.convertToBucketId().toKey() <= last.convertToBucketId().toKey()) << msg.str();
}
} else {
if ((gidKey >= first.convertToBucketId().toKey()) && (gidKey <= last.convertToBucketId().toKey())) {
std::ostringstream msg;
msg << gid << " should not be in the range " << first
<< " - " << last;
EXPECT_TRUE((gid.convertToBucketId().toKey() < first.convertToBucketId().toKey()) ||
(gid.convertToBucketId().toKey() > last.convertToBucketId().toKey())) << msg.str();
}
}
}
}
}
TEST_F(GlobalIdTest, testGidRangeConversion)
{
// Generate a lot of random document ids used for test
std::vector<DocumentId> docIds;
vespalib::RandomGen randomizer(0xdeadbabe);
for (uint32_t j=0; j<100; ++j) {
vespalib::asciistream name_space;
vespalib::asciistream ost;
for (uint32_t i=0, n=randomizer.nextUint32(1, 5); i<n; ++i) {
name_space << (char) ('a' + randomizer.nextUint32(0, 25));
}
uint32_t scheme = randomizer.nextUint32(0, 2);
switch (scheme) {
case 0: ost << "id:" << name_space.str() << ":mytype::";
break;
case 1: ost << "id:" << name_space.str() << ":mytype:n=";
ost << randomizer.nextUint32() << ":";
break;
case 2: ost << "id:" << name_space.str() << ":mytype:g=";
for (uint32_t i=0, n=randomizer.nextUint32(1, 10); i<n; ++i) {
ost << (char) ('a' + randomizer.nextUint32(0, 25));
}
ost << ":";
break;
default: EXPECT_TRUE(false);
}
ost << "http://";
for (uint32_t i=0, n=randomizer.nextUint32(1, 20); i<n; ++i) {
ost << (char) ('a' + randomizer.nextUint32(0, 25));
}
docIds.push_back(DocumentId(ost.str()));
}
//std::cerr << "\nDoing " << ((58 - 16) * docIds.size() * docIds.size())
// << " tests for whether global id calculation is correct.\n";
for (uint32_t i=1; i<=58; ++i) {
//std::cerr << "Verifying with " << i << " countbits\n";
verifyGlobalIdRange(docIds, i);
}
}
TEST_F(GlobalIdTest, testBucketOrderCmp)
{
using C = GlobalId::BucketOrderCmp;
EXPECT_TRUE(C::compareRaw(0, 0) == 0);
EXPECT_TRUE(C::compareRaw(0, 1) == -1);
EXPECT_TRUE(C::compareRaw(1, 0) == 1);
EXPECT_TRUE(C::compareRaw(255, 255) == 0);
EXPECT_TRUE(C::compareRaw(0, 255) == -255);
EXPECT_TRUE(C::compareRaw(255, 0) == 255);
EXPECT_TRUE(C::compareRaw(254, 254) == 0);
EXPECT_TRUE(C::compareRaw(254, 255) == -1);
EXPECT_TRUE(C::compareRaw(255, 254) == 1);
{
// Test raw comparator object.
GlobalId foo = GlobalId::parse("gid(0x000001103330333077700000)");
GlobalId bar = GlobalId::parse("gid(0x000000100030003000700000)");
GlobalId baz = GlobalId::parse("gid(0x000000103330333000700000)");
GlobalId::BucketOrderCmp cmp;
EXPECT_TRUE(!cmp(foo, foo));
EXPECT_TRUE(!cmp(bar, bar));
EXPECT_TRUE(!cmp(baz, baz));
EXPECT_TRUE(!cmp(foo, bar));
EXPECT_TRUE( cmp(bar, foo));
EXPECT_TRUE(!cmp(foo, baz));
EXPECT_TRUE( cmp(baz, foo));
EXPECT_TRUE(!cmp(baz, bar));
EXPECT_TRUE( cmp(bar, baz));
}
{
// Test sorting by bucket.
GlobalId foo = GlobalId::parse("gid(0x000001103330333077700000)");
GlobalId bar = GlobalId::parse("gid(0x000000100030003000700000)");
GlobalId baz = GlobalId::parse("gid(0x000000103330333000700000)");
using GidMap = std::map<GlobalId, uint32_t, GlobalId::BucketOrderCmp>;
GidMap gidMap;
gidMap[foo] = 666;
gidMap[bar] = 777;
gidMap[baz] = 888;
GidMap::iterator it = gidMap.begin();
EXPECT_TRUE(it->first == bar);
EXPECT_TRUE(it->second == 777);
++it;
EXPECT_TRUE(it->first == baz);
EXPECT_TRUE(it->second == 888);
++it;
EXPECT_TRUE(it->first == foo);
EXPECT_TRUE(it->second == 666);
}
}
}
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