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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/sync/syncable/syncable_id.h"
      6 
      7 #include <vector>
      8 
      9 #include "base/memory/scoped_ptr.h"
     10 #include "base/values.h"
     11 #include "chrome/test/sync/engine/test_id_factory.h"
     12 #include "testing/gtest/include/gtest/gtest.h"
     13 
     14 using std::vector;
     15 
     16 namespace syncable {
     17 
     18 using browser_sync::TestIdFactory;
     19 
     20 class SyncableIdTest : public testing::Test { };
     21 
     22 TEST(SyncableIdTest, TestIDCreation) {
     23   vector<Id> v;
     24   v.push_back(TestIdFactory::FromNumber(5));
     25   v.push_back(TestIdFactory::FromNumber(1));
     26   v.push_back(TestIdFactory::FromNumber(-5));
     27   v.push_back(TestIdFactory::MakeLocal("A"));
     28   v.push_back(TestIdFactory::MakeLocal("B"));
     29   v.push_back(TestIdFactory::MakeServer("A"));
     30   v.push_back(TestIdFactory::MakeServer("B"));
     31   v.push_back(Id::CreateFromServerId("-5"));
     32   v.push_back(Id::CreateFromClientString("A"));
     33   v.push_back(Id::CreateFromServerId("A"));
     34 
     35   for (vector<Id>::iterator i = v.begin(); i != v.end(); ++i) {
     36     for (vector<Id>::iterator j = v.begin(); j != i; ++j) {
     37       ASSERT_NE(*i, *j) << "mis equated two distinct ids";
     38     }
     39     ASSERT_EQ(*i, *i) << "self-equality failed";
     40     Id copy1 = *i;
     41     Id copy2 = *i;
     42     ASSERT_EQ(copy1, copy2) << "equality after copy failed";
     43   }
     44 }
     45 
     46 TEST(SyncableIdTest, GetLeastIdForLexicographicComparison) {
     47   vector<Id> v;
     48   v.push_back(Id::CreateFromServerId("z5"));
     49   v.push_back(Id::CreateFromServerId("z55"));
     50   v.push_back(Id::CreateFromServerId("z6"));
     51   v.push_back(Id::CreateFromClientString("zA-"));
     52   v.push_back(Id::CreateFromClientString("zA--"));
     53   v.push_back(Id::CreateFromServerId("zA--"));
     54 
     55   for (int i = 0; i <= 255; ++i) {
     56     std::string one_character_id;
     57     one_character_id.push_back(i);
     58     v.push_back(Id::CreateFromClientString(one_character_id));
     59   }
     60 
     61   for (vector<Id>::iterator i = v.begin(); i != v.end(); ++i) {
     62     // The following looks redundant, but we're testing a custom operator<.
     63     ASSERT_LT(Id::GetLeastIdForLexicographicComparison(), *i);
     64     ASSERT_NE(*i, i->GetLexicographicSuccessor());
     65     ASSERT_NE(i->GetLexicographicSuccessor(), *i);
     66     ASSERT_LT(*i, i->GetLexicographicSuccessor());
     67     ASSERT_GT(i->GetLexicographicSuccessor(), *i);
     68     for (vector<Id>::iterator j = v.begin(); j != v.end(); ++j) {
     69       if (j == i)
     70         continue;
     71       if (*j < *i) {
     72         ASSERT_LT(j->GetLexicographicSuccessor(), *i);
     73         ASSERT_LT(j->GetLexicographicSuccessor(),
     74             i->GetLexicographicSuccessor());
     75         ASSERT_LT(*j, i->GetLexicographicSuccessor());
     76       } else {
     77         ASSERT_GT(j->GetLexicographicSuccessor(), *i);
     78         ASSERT_GT(j->GetLexicographicSuccessor(),
     79             i->GetLexicographicSuccessor());
     80         ASSERT_GT(*j, i->GetLexicographicSuccessor());
     81       }
     82     }
     83   }
     84 }
     85 
     86 namespace {
     87 
     88 // TODO(akalin): Move this to values_test_util.h.
     89 
     90 // Takes ownership of |actual|.
     91 void ExpectStringValue(const std::string& expected_str,
     92                        StringValue* actual) {
     93   scoped_ptr<StringValue> scoped_actual(actual);
     94   std::string actual_str;
     95   EXPECT_TRUE(scoped_actual->GetAsString(&actual_str));
     96   EXPECT_EQ(expected_str, actual_str);
     97 }
     98 
     99 }  // namespace
    100 
    101 TEST(SyncableIdTest, ToValue) {
    102   ExpectStringValue("r", Id::CreateFromServerId("0").ToValue());
    103   ExpectStringValue("svalue", Id::CreateFromServerId("value").ToValue());
    104 
    105   ExpectStringValue("r", Id::CreateFromClientString("0").ToValue());
    106   ExpectStringValue("cvalue", Id::CreateFromClientString("value").ToValue());
    107 }
    108 
    109 }  // namespace syncable
    110