sync/internal_api/public/base/object_id_invalidation_map_test_util.cc

   1 // Copyright 2013 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 "sync/internal_api/public/base/object_id_invalidation_map_test_util.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/basictypes.h"
  10
  11 namespace syncer {
  12
  13 using ::testing::MakeMatcher;
  14 using ::testing::MatchResultListener;
  15 using ::testing::Matcher;
  16 using ::testing::MatcherInterface;
  17 using ::testing::PrintToString;
  18
  19 namespace {
  20
  21 class ObjectIdInvalidationMapEqMatcher
  22     : public MatcherInterface<const ObjectIdInvalidationMap&> {
  23  public:
  24   explicit ObjectIdInvalidationMapEqMatcher(
  25       const ObjectIdInvalidationMap& expected);
  26
  27   virtual bool MatchAndExplain(const ObjectIdInvalidationMap& lhs,
  28                                MatchResultListener* listener) const;
  29   virtual void DescribeTo(::std::ostream* os) const;
  30   virtual void DescribeNegationTo(::std::ostream* os) const;
  31
  32  private:
  33   const ObjectIdInvalidationMap expected_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(ObjectIdInvalidationMapEqMatcher);
  36 };
  37
  38 ObjectIdInvalidationMapEqMatcher::ObjectIdInvalidationMapEqMatcher(
  39     const ObjectIdInvalidationMap& expected) : expected_(expected) {
  40 }
  41
  42 namespace {
  43
  44 struct InvalidationEqPredicate {
  45   InvalidationEqPredicate(const Invalidation& inv1)
  46       : inv1_(inv1) { }
  47
  48   bool operator()(const Invalidation& inv2) {
  49     return inv1_.Equals(inv2);
  50   }
  51
  52   const Invalidation& inv1_;
  53 };
  54
  55 }
  56
  57 bool ObjectIdInvalidationMapEqMatcher::MatchAndExplain(
  58     const ObjectIdInvalidationMap& actual,
  59     MatchResultListener* listener) const {
  60
  61   std::vector<syncer::Invalidation> expected_invalidations;
  62   std::vector<syncer::Invalidation> actual_invalidations;
  63
  64   expected_.GetAllInvalidations(&expected_invalidations);
  65   actual.GetAllInvalidations(&actual_invalidations);
  66
  67   std::vector<syncer::Invalidation> expected_only;
  68   std::vector<syncer::Invalidation> actual_only;
  69
  70   for (std::vector<syncer::Invalidation>::iterator it =
  71        expected_invalidations.begin();
  72        it != expected_invalidations.end(); ++it) {
  73     if (std::find_if(actual_invalidations.begin(),
  74                      actual_invalidations.end(),
  75                      InvalidationEqPredicate(*it))
  76         == actual_invalidations.end()) {
  77       expected_only.push_back(*it);
  78     }
  79   }
  80
  81   for (std::vector<syncer::Invalidation>::iterator it =
  82        actual_invalidations.begin();
  83        it != actual_invalidations.end(); ++it) {
  84     if (std::find_if(expected_invalidations.begin(),
  85                      expected_invalidations.end(),
  86                      InvalidationEqPredicate(*it))
  87         == expected_invalidations.end()) {
  88       actual_only.push_back(*it);
  89     }
  90   }
  91
  92   if (expected_only.empty() && actual_only.empty())
  93     return true;
  94
  95   bool printed_header = false;
  96   if (!actual_only.empty()) {
  97     *listener << " which has these unexpected elements: "
  98               << PrintToString(actual_only);
  99     printed_header = true;
 100   }
 101
 102   if (!expected_only.empty()) {
 103     *listener << (printed_header ? ",\nand" : "which")
 104               << " doesn't have these expected elements: "
 105               << PrintToString(expected_only);
 106     printed_header = true;
 107   }
 108
 109   return false;
 110 }
 111
 112 void ObjectIdInvalidationMapEqMatcher::DescribeTo(::std::ostream* os) const {
 113   *os << " is equal to " << PrintToString(expected_);
 114 }
 115
 116 void ObjectIdInvalidationMapEqMatcher::DescribeNegationTo(
 117     ::std::ostream* os) const {
 118   *os << " isn't equal to " << PrintToString(expected_);
 119 }
 120
 121 }  // namespace
 122
 123 Matcher<const ObjectIdInvalidationMap&> Eq(
 124     const ObjectIdInvalidationMap& expected) {
 125   return MakeMatcher(new ObjectIdInvalidationMapEqMatcher(expected));
 126 }
 127
 128 }  // namespace syncer