root/extensions/common/permissions/manifest_permission_set_unittest.cc

DEFINITIONS

1. name
2. id
3. HasMessages
4. GetMessages
5. FromValue
6. ToValue
7. Clone
8. Diff
9. Union
10. Intersect
11. Contains
12. Equal
13. Write
14. Read
15. Log
16. TEST
17. TEST
18. TEST
19. TEST

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/pickle.h"
#include "base/values.h"
#include "extensions/common/extension_messages.h"
#include "extensions/common/permissions/manifest_permission.h"
#include "extensions/common/permissions/manifest_permission_set.h"
#include "ipc/ipc_message.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace extensions {

class MockManifestPermission : public ManifestPermission {
 public:
  MockManifestPermission(const std::string& name)
      : name_(name) {
  }

  virtual std::string name() const OVERRIDE {
    return name_;
  }

  virtual std::string id() const OVERRIDE {
    return name();
  }

  virtual bool HasMessages() const OVERRIDE {
    return false;
  }

  virtual PermissionMessages GetMessages() const OVERRIDE {
    return PermissionMessages();
  }

  virtual bool FromValue(const base::Value* value) OVERRIDE {
    return false;
  }

  virtual scoped_ptr<base::Value> ToValue() const OVERRIDE {
    return scoped_ptr<base::Value>(base::Value::CreateNullValue());
  }

  virtual ManifestPermission* Clone() const OVERRIDE {
    return new MockManifestPermission(name_);
  }

  virtual ManifestPermission* Diff(const ManifestPermission* rhs)
      const OVERRIDE {
    const MockManifestPermission* other =
        static_cast<const MockManifestPermission*>(rhs);
    EXPECT_EQ(name_, other->name_);
    return NULL;
  }

  virtual ManifestPermission* Union(const ManifestPermission* rhs)
      const OVERRIDE {
    const MockManifestPermission* other =
        static_cast<const MockManifestPermission*>(rhs);
    EXPECT_EQ(name_, other->name_);
    return new MockManifestPermission(name_);
  }

  virtual ManifestPermission* Intersect(const ManifestPermission* rhs)
      const OVERRIDE {
    const MockManifestPermission* other =
        static_cast<const MockManifestPermission*>(rhs);
    EXPECT_EQ(name_, other->name_);
    return new MockManifestPermission(name_);
  }

  virtual bool Contains(const ManifestPermission* rhs) const OVERRIDE {
    const MockManifestPermission* other =
        static_cast<const MockManifestPermission*>(rhs);
    EXPECT_EQ(name_, other->name_);
    return true;
  }

  virtual bool Equal(const ManifestPermission* rhs) const OVERRIDE {
    const MockManifestPermission* other =
        static_cast<const MockManifestPermission*>(rhs);
    EXPECT_EQ(name_, other->name_);
    return true;
  }

  virtual void Write(IPC::Message* m) const OVERRIDE {
    IPC::WriteParam(m, name_);
  }

  virtual bool Read(const IPC::Message* m, PickleIterator* iter) OVERRIDE {
    std::string read_name;
    bool result = IPC::ReadParam(m, iter, &read_name);
    if (!result)
      return result;
    EXPECT_EQ(read_name, name_);
    return true;
  }

  virtual void Log(std::string* log) const OVERRIDE {
  }

 private:
  std::string name_;
};

TEST(ManifestPermissionSetTest, General) {
  ManifestPermissionSet set;
  set.insert(new MockManifestPermission("p1"));
  set.insert(new MockManifestPermission("p2"));
  set.insert(new MockManifestPermission("p3"));
  set.insert(new MockManifestPermission("p4"));
  set.insert(new MockManifestPermission("p5"));

  EXPECT_EQ(set.find("p1")->id(), "p1");
  EXPECT_TRUE(set.find("p10") == set.end());

  EXPECT_EQ(set.size(), 5u);

  EXPECT_EQ(set.erase("p1"), 1u);
  EXPECT_EQ(set.size(), 4u);

  EXPECT_EQ(set.erase("p1"), 0u);
  EXPECT_EQ(set.size(), 4u);
}

TEST(ManifestPermissionSetTest, CreateUnion) {
  ManifestPermissionSet permissions1;
  ManifestPermissionSet permissions2;
  ManifestPermissionSet expected_permissions;
  ManifestPermissionSet result;

  ManifestPermission* permission = new MockManifestPermission("p3");

  // Union with an empty set.
  permissions1.insert(new MockManifestPermission("p1"));
  permissions1.insert(new MockManifestPermission("p2"));
  permissions1.insert(permission->Clone());
  expected_permissions.insert(new MockManifestPermission("p1"));
  expected_permissions.insert(new MockManifestPermission("p2"));
  expected_permissions.insert(permission);

  ManifestPermissionSet::Union(permissions1, permissions2, &result);

  EXPECT_TRUE(permissions1.Contains(permissions2));
  EXPECT_TRUE(permissions1.Contains(result));
  EXPECT_FALSE(permissions2.Contains(permissions1));
  EXPECT_FALSE(permissions2.Contains(result));
  EXPECT_TRUE(result.Contains(permissions1));
  EXPECT_TRUE(result.Contains(permissions2));

  EXPECT_EQ(expected_permissions, result);

  // Now use a real second set.
  permissions2.insert(new MockManifestPermission("p1"));
  permissions2.insert(new MockManifestPermission("p2"));
  permissions2.insert(new MockManifestPermission("p33"));
  permissions2.insert(new MockManifestPermission("p4"));
  permissions2.insert(new MockManifestPermission("p5"));

  expected_permissions.insert(new MockManifestPermission("p1"));
  expected_permissions.insert(new MockManifestPermission("p2"));
  expected_permissions.insert(new MockManifestPermission("p3"));
  expected_permissions.insert(new MockManifestPermission("p4"));
  expected_permissions.insert(new MockManifestPermission("p5"));
  expected_permissions.insert(new MockManifestPermission("p33"));

  ManifestPermissionSet::Union(permissions1, permissions2, &result);

  {
    ManifestPermissionSet set1;
    set1.insert(new MockManifestPermission("p1"));
    set1.insert(new MockManifestPermission("p2"));
    ManifestPermissionSet set2;
    set2.insert(new MockManifestPermission("p3"));

    EXPECT_FALSE(set1.Contains(set2));
    EXPECT_FALSE(set2.Contains(set1));
  }

  EXPECT_FALSE(permissions1.Contains(permissions2));
  EXPECT_FALSE(permissions1.Contains(result));
  EXPECT_FALSE(permissions2.Contains(permissions1));
  EXPECT_FALSE(permissions2.Contains(result));
  EXPECT_TRUE(result.Contains(permissions1));
  EXPECT_TRUE(result.Contains(permissions2));

  EXPECT_EQ(expected_permissions, result);
}

TEST(ManifestPermissionSetTest, CreateIntersection) {
  ManifestPermissionSet permissions1;
  ManifestPermissionSet permissions2;
  ManifestPermissionSet expected_permissions;
  ManifestPermissionSet result;

  // Intersection with an empty set.
  permissions1.insert(new MockManifestPermission("p1"));
  permissions1.insert(new MockManifestPermission("p2"));
  permissions1.insert(new MockManifestPermission("p3"));

  ManifestPermissionSet::Intersection(permissions1, permissions2, &result);
  EXPECT_TRUE(permissions1.Contains(result));
  EXPECT_TRUE(permissions2.Contains(result));
  EXPECT_TRUE(permissions1.Contains(permissions2));
  EXPECT_FALSE(permissions2.Contains(permissions1));
  EXPECT_FALSE(result.Contains(permissions1));
  EXPECT_TRUE(result.Contains(permissions2));

  EXPECT_TRUE(result.empty());
  EXPECT_EQ(expected_permissions, result);

  // Now use a real second set.
  permissions2.insert(new MockManifestPermission("p1"));
  permissions2.insert(new MockManifestPermission("p3"));
  permissions2.insert(new MockManifestPermission("p4"));
  permissions2.insert(new MockManifestPermission("p5"));

  expected_permissions.insert(new MockManifestPermission("p1"));
  expected_permissions.insert(new MockManifestPermission("p3"));

  ManifestPermissionSet::Intersection(permissions1, permissions2, &result);

  EXPECT_TRUE(permissions1.Contains(result));
  EXPECT_TRUE(permissions2.Contains(result));
  EXPECT_FALSE(permissions1.Contains(permissions2));
  EXPECT_FALSE(permissions2.Contains(permissions1));
  EXPECT_FALSE(result.Contains(permissions1));
  EXPECT_FALSE(result.Contains(permissions2));

  EXPECT_EQ(expected_permissions, result);
}

TEST(ManifestPermissionSetTest, CreateDifference) {
  ManifestPermissionSet permissions1;
  ManifestPermissionSet permissions2;
  ManifestPermissionSet expected_permissions;
  ManifestPermissionSet result;

  // Difference with an empty set.
  permissions1.insert(new MockManifestPermission("p1"));
  permissions1.insert(new MockManifestPermission("p2"));
  permissions1.insert(new MockManifestPermission("p3"));

  ManifestPermissionSet::Difference(permissions1, permissions2, &result);

  EXPECT_EQ(permissions1, result);

  // Now use a real second set.
  permissions2.insert(new MockManifestPermission("p1"));
  permissions2.insert(new MockManifestPermission("p2"));
  permissions2.insert(new MockManifestPermission("p4"));
  permissions2.insert(new MockManifestPermission("p5"));
  permissions2.insert(new MockManifestPermission("p6"));

  expected_permissions.insert(new MockManifestPermission("p3"));

  ManifestPermissionSet::Difference(permissions1, permissions2, &result);

  EXPECT_TRUE(permissions1.Contains(result));
  EXPECT_FALSE(permissions2.Contains(result));

  EXPECT_EQ(expected_permissions, result);

  // |result| = |permissions1| - |permissions2| -->
  //   |result| intersect |permissions2| == empty_set
  ManifestPermissionSet result2;
  ManifestPermissionSet::Intersection(result, permissions2, &result2);
  EXPECT_TRUE(result2.empty());
}

}  // namespace extensions