sync/syncable/entry_kernel_unittest.cc

   1 // Copyright 2014 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/syncable/entry_kernel.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace syncer {
  10
  11 namespace syncable {
  12
  13 class EntryKernelTest : public testing::Test {};
  14
  15 TEST_F(EntryKernelTest, ToValue) {
  16   EntryKernel kernel;
  17   scoped_ptr<base::DictionaryValue> value(kernel.ToValue(NULL));
  18   if (value) {
  19     // Not much to check without repeating the ToValue() code.
  20     EXPECT_TRUE(value->HasKey("isDirty"));
  21     // The extra +2 is for "isDirty" and "modelType".
  22     EXPECT_EQ(BIT_TEMPS_END - BEGIN_FIELDS + 2,
  23               static_cast<int>(value->size()));
  24   } else {
  25     ADD_FAILURE();
  26   }
  27 }
  28
  29 bool ProtoFieldValuesEqual(const sync_pb::EntitySpecifics& v1,
  30                            const sync_pb::EntitySpecifics& v2) {
  31   return v1.SerializeAsString() == v2.SerializeAsString();
  32 }
  33
  34 bool ProtoFieldValuesAreSame(const sync_pb::EntitySpecifics& v1,
  35                              const sync_pb::EntitySpecifics& v2) {
  36   return &v1 == &v2;
  37 }
  38
  39 bool ProtoFieldValueIsDefault(const sync_pb::EntitySpecifics& v) {
  40   return ProtoFieldValuesAreSame(v,
  41                                  sync_pb::EntitySpecifics::default_instance());
  42 }
  43
  44 // Tests default value, assignment, and sharing of proto fields.
  45 TEST_F(EntryKernelTest, ProtoFieldTest) {
  46   EntryKernel kernel;
  47
  48   // Check default values.
  49   EXPECT_TRUE(ProtoFieldValueIsDefault(kernel.ref(SPECIFICS)));
  50   EXPECT_TRUE(ProtoFieldValueIsDefault(kernel.ref(SERVER_SPECIFICS)));
  51   EXPECT_TRUE(ProtoFieldValueIsDefault(kernel.ref(BASE_SERVER_SPECIFICS)));
  52
  53   sync_pb::EntitySpecifics specifics;
  54
  55   // Assign empty value and verify that the field still returns the
  56   // default value.
  57   kernel.put(SPECIFICS, specifics);
  58   EXPECT_TRUE(ProtoFieldValueIsDefault(kernel.ref(SPECIFICS)));
  59   EXPECT_TRUE(ProtoFieldValuesEqual(kernel.ref(SPECIFICS), specifics));
  60
  61   // Verifies that the kernel holds the copy of the value assigned to it.
  62   specifics.mutable_bookmark()->set_url("http://demo/");
  63   EXPECT_FALSE(ProtoFieldValuesEqual(kernel.ref(SPECIFICS), specifics));
  64
  65   // Put the new value and verify the equality.
  66   kernel.put(SPECIFICS, specifics);
  67   EXPECT_TRUE(ProtoFieldValuesEqual(kernel.ref(SPECIFICS), specifics));
  68   EXPECT_FALSE(ProtoFieldValueIsDefault(kernel.ref(SPECIFICS)));
  69
  70   // Copy the value between the fields and verify that exactly the same
  71   // underlying value is shared.
  72   kernel.copy(SPECIFICS, SERVER_SPECIFICS);
  73   EXPECT_TRUE(ProtoFieldValuesEqual(kernel.ref(SERVER_SPECIFICS), specifics));
  74   EXPECT_TRUE(ProtoFieldValuesAreSame(kernel.ref(SPECIFICS),
  75                                       kernel.ref(SERVER_SPECIFICS)));
  76
  77   // Put the new value into SPECIFICS and verify that that stops sharing even
  78   // though the values are still equal.
  79   kernel.put(SPECIFICS, specifics);
  80   EXPECT_FALSE(ProtoFieldValuesAreSame(kernel.ref(SPECIFICS),
  81                                        kernel.ref(SERVER_SPECIFICS)));
  82 }
  83
  84 }  // namespace syncable
  85
  86 }  // namespace syncer