src/extensions/common/permissions/manifest_permission_set_unittest.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 "base/pickle.h"
   6 #include "base/values.h"
   7 #include "extensions/common/permissions/manifest_permission.h"
   8 #include "extensions/common/permissions/manifest_permission_set.h"
   9 #include "ipc/ipc_message.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace extensions {
  13
  14 class MockManifestPermission : public ManifestPermission {
  15  public:
  16   MockManifestPermission(const std::string& name)
  17       : name_(name) {
  18   }
  19
  20   std::string name() const override { return name_; }
  21
  22   std::string id() const override { return name(); }
  23
  24   bool HasMessages() const override { return false; }
  25
  26   PermissionMessages GetMessages() const override {
  27     return PermissionMessages();
  28   }
  29
  30   bool FromValue(const base::Value* value) override { return true; }
  31
  32   scoped_ptr<base::Value> ToValue() const override {
  33     return make_scoped_ptr(base::Value::CreateNullValue());
  34   }
  35
  36   ManifestPermission* Diff(const ManifestPermission* rhs) const override {
  37     const MockManifestPermission* other =
  38         static_cast<const MockManifestPermission*>(rhs);
  39     EXPECT_EQ(name_, other->name_);
  40     return NULL;
  41   }
  42
  43   ManifestPermission* Union(const ManifestPermission* rhs) const override {
  44     const MockManifestPermission* other =
  45         static_cast<const MockManifestPermission*>(rhs);
  46     EXPECT_EQ(name_, other->name_);
  47     return new MockManifestPermission(name_);
  48   }
  49
  50   ManifestPermission* Intersect(const ManifestPermission* rhs) const override {
  51     const MockManifestPermission* other =
  52         static_cast<const MockManifestPermission*>(rhs);
  53     EXPECT_EQ(name_, other->name_);
  54     return new MockManifestPermission(name_);
  55   }
  56
  57  private:
  58   std::string name_;
  59 };
  60
  61 TEST(ManifestPermissionSetTest, General) {
  62   ManifestPermissionSet set;
  63   set.insert(new MockManifestPermission("p1"));
  64   set.insert(new MockManifestPermission("p2"));
  65   set.insert(new MockManifestPermission("p3"));
  66   set.insert(new MockManifestPermission("p4"));
  67   set.insert(new MockManifestPermission("p5"));
  68
  69   EXPECT_EQ(set.find("p1")->id(), "p1");
  70   EXPECT_TRUE(set.find("p10") == set.end());
  71
  72   EXPECT_EQ(set.size(), 5u);
  73
  74   EXPECT_EQ(set.erase("p1"), 1u);
  75   EXPECT_EQ(set.size(), 4u);
  76
  77   EXPECT_EQ(set.erase("p1"), 0u);
  78   EXPECT_EQ(set.size(), 4u);
  79 }
  80
  81 TEST(ManifestPermissionSetTest, CreateUnion) {
  82   ManifestPermissionSet permissions1;
  83   ManifestPermissionSet permissions2;
  84   ManifestPermissionSet expected_permissions;
  85   ManifestPermissionSet result;
  86
  87   ManifestPermission* permission = new MockManifestPermission("p3");
  88
  89   // Union with an empty set.
  90   permissions1.insert(new MockManifestPermission("p1"));
  91   permissions1.insert(new MockManifestPermission("p2"));
  92   permissions1.insert(permission->Clone());
  93   expected_permissions.insert(new MockManifestPermission("p1"));
  94   expected_permissions.insert(new MockManifestPermission("p2"));
  95   expected_permissions.insert(permission);
  96
  97   ManifestPermissionSet::Union(permissions1, permissions2, &result);
  98
  99   EXPECT_TRUE(permissions1.Contains(permissions2));
 100   EXPECT_TRUE(permissions1.Contains(result));
 101   EXPECT_FALSE(permissions2.Contains(permissions1));
 102   EXPECT_FALSE(permissions2.Contains(result));
 103   EXPECT_TRUE(result.Contains(permissions1));
 104   EXPECT_TRUE(result.Contains(permissions2));
 105
 106   EXPECT_EQ(expected_permissions, result);
 107
 108   // Now use a real second set.
 109   permissions2.insert(new MockManifestPermission("p1"));
 110   permissions2.insert(new MockManifestPermission("p2"));
 111   permissions2.insert(new MockManifestPermission("p33"));
 112   permissions2.insert(new MockManifestPermission("p4"));
 113   permissions2.insert(new MockManifestPermission("p5"));
 114
 115   expected_permissions.insert(new MockManifestPermission("p1"));
 116   expected_permissions.insert(new MockManifestPermission("p2"));
 117   expected_permissions.insert(new MockManifestPermission("p3"));
 118   expected_permissions.insert(new MockManifestPermission("p4"));
 119   expected_permissions.insert(new MockManifestPermission("p5"));
 120   expected_permissions.insert(new MockManifestPermission("p33"));
 121
 122   ManifestPermissionSet::Union(permissions1, permissions2, &result);
 123
 124   {
 125     ManifestPermissionSet set1;
 126     set1.insert(new MockManifestPermission("p1"));
 127     set1.insert(new MockManifestPermission("p2"));
 128     ManifestPermissionSet set2;
 129     set2.insert(new MockManifestPermission("p3"));
 130
 131     EXPECT_FALSE(set1.Contains(set2));
 132     EXPECT_FALSE(set2.Contains(set1));
 133   }
 134
 135   EXPECT_FALSE(permissions1.Contains(permissions2));
 136   EXPECT_FALSE(permissions1.Contains(result));
 137   EXPECT_FALSE(permissions2.Contains(permissions1));
 138   EXPECT_FALSE(permissions2.Contains(result));
 139   EXPECT_TRUE(result.Contains(permissions1));
 140   EXPECT_TRUE(result.Contains(permissions2));
 141
 142   EXPECT_EQ(expected_permissions, result);
 143 }
 144
 145 TEST(ManifestPermissionSetTest, CreateIntersection) {
 146   ManifestPermissionSet permissions1;
 147   ManifestPermissionSet permissions2;
 148   ManifestPermissionSet expected_permissions;
 149   ManifestPermissionSet result;
 150
 151   // Intersection with an empty set.
 152   permissions1.insert(new MockManifestPermission("p1"));
 153   permissions1.insert(new MockManifestPermission("p2"));
 154   permissions1.insert(new MockManifestPermission("p3"));
 155
 156   ManifestPermissionSet::Intersection(permissions1, permissions2, &result);
 157   EXPECT_TRUE(permissions1.Contains(result));
 158   EXPECT_TRUE(permissions2.Contains(result));
 159   EXPECT_TRUE(permissions1.Contains(permissions2));
 160   EXPECT_FALSE(permissions2.Contains(permissions1));
 161   EXPECT_FALSE(result.Contains(permissions1));
 162   EXPECT_TRUE(result.Contains(permissions2));
 163
 164   EXPECT_TRUE(result.empty());
 165   EXPECT_EQ(expected_permissions, result);
 166
 167   // Now use a real second set.
 168   permissions2.insert(new MockManifestPermission("p1"));
 169   permissions2.insert(new MockManifestPermission("p3"));
 170   permissions2.insert(new MockManifestPermission("p4"));
 171   permissions2.insert(new MockManifestPermission("p5"));
 172
 173   expected_permissions.insert(new MockManifestPermission("p1"));
 174   expected_permissions.insert(new MockManifestPermission("p3"));
 175
 176   ManifestPermissionSet::Intersection(permissions1, permissions2, &result);
 177
 178   EXPECT_TRUE(permissions1.Contains(result));
 179   EXPECT_TRUE(permissions2.Contains(result));
 180   EXPECT_FALSE(permissions1.Contains(permissions2));
 181   EXPECT_FALSE(permissions2.Contains(permissions1));
 182   EXPECT_FALSE(result.Contains(permissions1));
 183   EXPECT_FALSE(result.Contains(permissions2));
 184
 185   EXPECT_EQ(expected_permissions, result);
 186 }
 187
 188 TEST(ManifestPermissionSetTest, CreateDifference) {
 189   ManifestPermissionSet permissions1;
 190   ManifestPermissionSet permissions2;
 191   ManifestPermissionSet expected_permissions;
 192   ManifestPermissionSet result;
 193
 194   // Difference with an empty set.
 195   permissions1.insert(new MockManifestPermission("p1"));
 196   permissions1.insert(new MockManifestPermission("p2"));
 197   permissions1.insert(new MockManifestPermission("p3"));
 198
 199   ManifestPermissionSet::Difference(permissions1, permissions2, &result);
 200
 201   EXPECT_EQ(permissions1, result);
 202
 203   // Now use a real second set.
 204   permissions2.insert(new MockManifestPermission("p1"));
 205   permissions2.insert(new MockManifestPermission("p2"));
 206   permissions2.insert(new MockManifestPermission("p4"));
 207   permissions2.insert(new MockManifestPermission("p5"));
 208   permissions2.insert(new MockManifestPermission("p6"));
 209
 210   expected_permissions.insert(new MockManifestPermission("p3"));
 211
 212   ManifestPermissionSet::Difference(permissions1, permissions2, &result);
 213
 214   EXPECT_TRUE(permissions1.Contains(result));
 215   EXPECT_FALSE(permissions2.Contains(result));
 216
 217   EXPECT_EQ(expected_permissions, result);
 218
 219   // |result| = |permissions1| - |permissions2| -->
 220   //   |result| intersect |permissions2| == empty_set
 221   ManifestPermissionSet result2;
 222   ManifestPermissionSet::Intersection(result, permissions2, &result2);
 223   EXPECT_TRUE(result2.empty());
 224 }
 225
 226 }  // namespace extensions