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      1 // Copyright (c) 2012 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/strings/utf_string_conversions.h"
      6 #include "chrome/browser/extensions/management_policy.h"
      7 #include "chrome/browser/extensions/test_management_policy.h"
      8 #include "testing/gtest/include/gtest/gtest.h"
      9 
     10 typedef extensions::TestManagementPolicyProvider TestProvider;
     11 using extensions::Extension;
     12 
     13 class ManagementPolicyTest : public testing::Test {
     14  public:
     15   virtual void SetUp() {
     16     allow_all_.SetProhibitedActions(TestProvider::ALLOW_ALL);
     17     no_modify_status_.SetProhibitedActions(
     18         TestProvider::PROHIBIT_MODIFY_STATUS);
     19     no_load_.SetProhibitedActions(TestProvider::PROHIBIT_LOAD);
     20     must_remain_enabled_.SetProhibitedActions(
     21         TestProvider::MUST_REMAIN_ENABLED);
     22     restrict_all_.SetProhibitedActions(TestProvider::PROHIBIT_MODIFY_STATUS |
     23                                        TestProvider::PROHIBIT_LOAD |
     24                                        TestProvider::MUST_REMAIN_ENABLED);
     25   }
     26 
     27  protected:
     28   extensions::ManagementPolicy policy_;
     29 
     30   TestProvider allow_all_;
     31   TestProvider no_modify_status_;
     32   TestProvider no_load_;
     33   TestProvider must_remain_enabled_;
     34   TestProvider restrict_all_;
     35 };
     36 
     37 TEST_F(ManagementPolicyTest, RegisterAndUnregister) {
     38   EXPECT_EQ(0, policy_.GetNumProviders());
     39   policy_.RegisterProvider(&allow_all_);
     40   EXPECT_EQ(1, policy_.GetNumProviders());
     41   policy_.RegisterProvider(&allow_all_);
     42   EXPECT_EQ(1, policy_.GetNumProviders());
     43 
     44   policy_.RegisterProvider(&no_modify_status_);
     45   EXPECT_EQ(2, policy_.GetNumProviders());
     46   policy_.UnregisterProvider(&allow_all_);
     47   EXPECT_EQ(1, policy_.GetNumProviders());
     48   policy_.UnregisterProvider(&allow_all_);
     49   EXPECT_EQ(1, policy_.GetNumProviders());
     50   policy_.UnregisterProvider(&no_modify_status_);
     51   EXPECT_EQ(0, policy_.GetNumProviders());
     52 
     53   policy_.RegisterProvider(&allow_all_);
     54   policy_.RegisterProvider(&no_modify_status_);
     55   EXPECT_EQ(2, policy_.GetNumProviders());
     56   policy_.UnregisterAllProviders();
     57   EXPECT_EQ(0, policy_.GetNumProviders());
     58 }
     59 
     60 TEST_F(ManagementPolicyTest, UserMayLoad) {
     61   // No providers registered.
     62   string16 error;
     63   // The extension and location are irrelevant to the
     64   // TestManagementPolicyProviders.
     65   EXPECT_TRUE(policy_.UserMayLoad(NULL, &error));
     66   EXPECT_TRUE(error.empty());
     67 
     68   // One provider, no relevant restriction.
     69   policy_.RegisterProvider(&no_modify_status_);
     70   EXPECT_TRUE(policy_.UserMayLoad(NULL, &error));
     71   EXPECT_TRUE(error.empty());
     72 
     73   // Two providers, no relevant restrictions.
     74   policy_.RegisterProvider(&must_remain_enabled_);
     75   EXPECT_TRUE(policy_.UserMayLoad(NULL, &error));
     76   EXPECT_TRUE(error.empty());
     77 
     78   // Three providers, one with a relevant restriction.
     79   policy_.RegisterProvider(&no_load_);
     80   EXPECT_FALSE(policy_.UserMayLoad(NULL, &error));
     81   EXPECT_FALSE(error.empty());
     82 
     83   // Remove the restriction.
     84   policy_.UnregisterProvider(&no_load_);
     85   error.clear();
     86   EXPECT_TRUE(policy_.UserMayLoad(NULL, &error));
     87   EXPECT_TRUE(error.empty());
     88 }
     89 TEST_F(ManagementPolicyTest, UserMayModifySettings) {
     90   // No providers registered.
     91   string16 error;
     92   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, &error));
     93   EXPECT_TRUE(error.empty());
     94 
     95   // One provider, no relevant restriction.
     96   policy_.RegisterProvider(&allow_all_);
     97   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, &error));
     98   EXPECT_TRUE(error.empty());
     99 
    100   // Two providers, no relevant restrictions.
    101   policy_.RegisterProvider(&no_load_);
    102   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, &error));
    103   EXPECT_TRUE(error.empty());
    104 
    105   // Three providers, one with a relevant restriction.
    106   policy_.RegisterProvider(&no_modify_status_);
    107   EXPECT_FALSE(policy_.UserMayModifySettings(NULL, &error));
    108   EXPECT_FALSE(error.empty());
    109 
    110   // Remove the restriction.
    111   policy_.UnregisterProvider(&no_modify_status_);
    112   error.clear();
    113   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, &error));
    114   EXPECT_TRUE(error.empty());
    115 }
    116 
    117 TEST_F(ManagementPolicyTest, MustRemainEnabled) {
    118   // No providers registered.
    119   string16 error;
    120   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, &error));
    121   EXPECT_TRUE(error.empty());
    122 
    123   // One provider, no relevant restriction.
    124   policy_.RegisterProvider(&allow_all_);
    125   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, &error));
    126   EXPECT_TRUE(error.empty());
    127 
    128   // Two providers, no relevant restrictions.
    129   policy_.RegisterProvider(&no_modify_status_);
    130   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, &error));
    131   EXPECT_TRUE(error.empty());
    132 
    133   // Three providers, one with a relevant restriction.
    134   policy_.RegisterProvider(&must_remain_enabled_);
    135   EXPECT_TRUE(policy_.MustRemainEnabled(NULL, &error));
    136   EXPECT_FALSE(error.empty());
    137 
    138   // Remove the restriction.
    139   policy_.UnregisterProvider(&must_remain_enabled_);
    140   error.clear();
    141   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, &error));
    142   EXPECT_TRUE(error.empty());
    143 }
    144 
    145 // Tests error handling in the ManagementPolicy.
    146 TEST_F(ManagementPolicyTest, ErrorHandling) {
    147   // The error parameter should be unchanged if no restriction was found.
    148   std::string original_error = "Ceci est en effet une erreur.";
    149   string16 original_error16 = UTF8ToUTF16(original_error);
    150   string16 error = original_error16;
    151   EXPECT_TRUE(policy_.UserMayLoad(NULL, &error));
    152   EXPECT_EQ(original_error, UTF16ToUTF8(error));
    153   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, &error));
    154   EXPECT_EQ(original_error, UTF16ToUTF8(error));
    155   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, &error));
    156   EXPECT_EQ(original_error, UTF16ToUTF8(error));
    157 
    158   // Ensure no crashes if no error message was requested.
    159   EXPECT_TRUE(policy_.UserMayLoad(NULL, NULL));
    160   EXPECT_TRUE(policy_.UserMayModifySettings(NULL, NULL));
    161   EXPECT_FALSE(policy_.MustRemainEnabled(NULL, NULL));
    162   policy_.RegisterProvider(&restrict_all_);
    163   EXPECT_FALSE(policy_.UserMayLoad(NULL, NULL));
    164   EXPECT_FALSE(policy_.UserMayModifySettings(NULL, NULL));
    165   EXPECT_TRUE(policy_.MustRemainEnabled(NULL, NULL));
    166 
    167   // Make sure returned error is correct.
    168   error = original_error16;
    169   EXPECT_FALSE(policy_.UserMayLoad(NULL, &error));
    170   EXPECT_EQ(UTF8ToUTF16(TestProvider::expected_error()), error);
    171   error = original_error16;
    172   EXPECT_FALSE(policy_.UserMayModifySettings(NULL, &error));
    173   EXPECT_EQ(UTF8ToUTF16(TestProvider::expected_error()), error);
    174   error = original_error16;
    175   EXPECT_TRUE(policy_.MustRemainEnabled(NULL, &error));
    176   EXPECT_EQ(UTF8ToUTF16(TestProvider::expected_error()), error);
    177 }
    178