extensions/browser/error_map_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 "extensions/browser/error_map.h"
   6
   7 #include "base/logging.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/strings/string_number_conversions.h"
  10 #include "components/crx_file/id_util.h"
  11 #include "extensions/browser/extension_error.h"
  12 #include "extensions/browser/extension_error_test_util.h"
  13 #include "extensions/common/constants.h"
  14 #include "testing/gtest/include/gtest/gtest.h"
  15
  16 namespace extensions {
  17
  18 using error_test_util::CreateNewRuntimeError;
  19
  20 class ErrorMapUnitTest : public testing::Test {
  21  public:
  22   ErrorMapUnitTest() { }
  23   virtual ~ErrorMapUnitTest() { }
  24
  25   virtual void SetUp() OVERRIDE {
  26     testing::Test::SetUp();
  27   }
  28
  29  protected:
  30   ErrorMap errors_;
  31 };
  32
  33 // Test adding errors, and removing them by reference, by incognito status,
  34 // and in bulk.
  35 TEST_F(ErrorMapUnitTest, AddAndRemoveErrors) {
  36   ASSERT_EQ(0u, errors_.size());
  37
  38   const size_t kNumTotalErrors = 6;
  39   const size_t kNumNonIncognitoErrors = 3;
  40   const std::string kId = crx_file::id_util::GenerateId("id");
  41   // Populate with both incognito and non-incognito errors (evenly distributed).
  42   for (size_t i = 0; i < kNumTotalErrors; ++i) {
  43     ASSERT_TRUE(errors_.AddError(
  44         CreateNewRuntimeError(kId, base::UintToString(i), i % 2 == 0)));
  45   }
  46
  47   // There should only be one entry in the map, since errors are stored in lists
  48   // keyed by extension id.
  49   ASSERT_EQ(1u, errors_.size());
  50
  51   ASSERT_EQ(kNumTotalErrors, errors_.GetErrorsForExtension(kId).size());
  52
  53   // Remove the incognito errors; three errors should remain, and all should
  54   // be from non-incognito contexts.
  55   errors_.RemoveIncognitoErrors();
  56   const ErrorList& list = errors_.GetErrorsForExtension(kId);
  57   ASSERT_EQ(kNumNonIncognitoErrors, list.size());
  58   for (size_t i = 0; i < list.size(); ++i)
  59     ASSERT_FALSE(list[i]->from_incognito());
  60
  61   // Add another error for a different extension id.
  62   const std::string kSecondId = crx_file::id_util::GenerateId("id2");
  63   ASSERT_TRUE(errors_.AddError(CreateNewRuntimeError(kSecondId, "foo")));
  64
  65   // There should be two entries now, one for each id, and there should be one
  66   // error for the second extension.
  67   ASSERT_EQ(2u, errors_.size());
  68   ASSERT_EQ(1u, errors_.GetErrorsForExtension(kSecondId).size());
  69
  70   // Remove all errors for the second id.
  71   errors_.Remove(kSecondId);
  72   ASSERT_EQ(1u, errors_.size());
  73   ASSERT_EQ(0u, errors_.GetErrorsForExtension(kSecondId).size());
  74   // First extension should be unaffected.
  75   ASSERT_EQ(kNumNonIncognitoErrors,
  76             errors_.GetErrorsForExtension(kId).size());
  77
  78   // Remove remaining errors.
  79   errors_.RemoveAllErrors();
  80   ASSERT_EQ(0u, errors_.size());
  81   ASSERT_EQ(0u, errors_.GetErrorsForExtension(kId).size());
  82 }
  83
  84 // Test that if we add enough errors, only the most recent
  85 // kMaxErrorsPerExtension are kept.
  86 TEST_F(ErrorMapUnitTest, ExcessiveErrorsGetCropped) {
  87   ASSERT_EQ(0u, errors_.size());
  88
  89   // This constant matches one of the same name in error_console.cc.
  90   const size_t kMaxErrorsPerExtension = 100;
  91   const size_t kNumExtraErrors = 5;
  92   const std::string kId = crx_file::id_util::GenerateId("id");
  93
  94   // Add new errors, with each error's message set to its number.
  95   for (size_t i = 0; i < kMaxErrorsPerExtension + kNumExtraErrors; ++i) {
  96     ASSERT_TRUE(errors_.AddError(
  97         CreateNewRuntimeError(kId, base::UintToString(i))));
  98   }
  99
 100   ASSERT_EQ(1u, errors_.size());
 101
 102   const ErrorList& list = errors_.GetErrorsForExtension(kId);
 103   ASSERT_EQ(kMaxErrorsPerExtension, list.size());
 104
 105   // We should have popped off errors in the order they arrived, so the
 106   // first stored error should be the 6th reported (zero-based)...
 107   ASSERT_EQ(base::UintToString16(kNumExtraErrors),
 108             list.front()->message());
 109   // ..and the last stored should be the 105th reported.
 110   ASSERT_EQ(base::UintToString16(kMaxErrorsPerExtension + kNumExtraErrors - 1),
 111             list.back()->message());
 112 }
 113
 114 // Test to ensure that the error console will not add duplicate errors, but will
 115 // keep the latest version of an error.
 116 TEST_F(ErrorMapUnitTest, DuplicateErrorsAreReplaced) {
 117   ASSERT_EQ(0u, errors_.size());
 118
 119   const std::string kId = crx_file::id_util::GenerateId("id");
 120   const size_t kNumErrors = 3u;
 121
 122   // Report three errors.
 123   for (size_t i = 0; i < kNumErrors; ++i) {
 124     ASSERT_TRUE(errors_.AddError(
 125         CreateNewRuntimeError(kId, base::UintToString(i))));
 126   }
 127
 128   // Create an error identical to the second error reported, save its
 129   // location, and add it to the error map.
 130   scoped_ptr<ExtensionError> runtime_error2 =
 131       CreateNewRuntimeError(kId, base::UintToString(1u));
 132   const ExtensionError* weak_error = runtime_error2.get();
 133   ASSERT_TRUE(errors_.AddError(runtime_error2.Pass()));
 134
 135   // We should only have three errors stored, since two of the four reported
 136   // were identical, and the older should have been replaced.
 137   ASSERT_EQ(1u, errors_.size());
 138   const ErrorList& list = errors_.GetErrorsForExtension(kId);
 139   ASSERT_EQ(kNumErrors, list.size());
 140
 141   // The duplicate error should be the last reported (pointer comparison)...
 142   ASSERT_EQ(weak_error, list.back());
 143   // ... and should have two reported occurrences.
 144   ASSERT_EQ(2u, list.back()->occurrences());
 145 }
 146
 147 }  // namespace extensions