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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 "chromeos/network/network_util.h"
      6 
      7 #include "testing/gtest/include/gtest/gtest.h"
      8 #include "third_party/cros_system_api/dbus/service_constants.h"
      9 
     10 using chromeos::CellularScanResult;
     11 using chromeos::network_util::NetmaskToPrefixLength;
     12 using chromeos::network_util::PrefixLengthToNetmask;
     13 using chromeos::network_util::ParseCellularScanResults;
     14 
     15 typedef testing::Test NetworkUtilTest;
     16 
     17 TEST_F(NetworkUtilTest, NetmaskToPrefixLength) {
     18   // Valid netmasks
     19   EXPECT_EQ(32, NetmaskToPrefixLength("255.255.255.255"));
     20   EXPECT_EQ(31, NetmaskToPrefixLength("255.255.255.254"));
     21   EXPECT_EQ(30, NetmaskToPrefixLength("255.255.255.252"));
     22   EXPECT_EQ(29, NetmaskToPrefixLength("255.255.255.248"));
     23   EXPECT_EQ(28, NetmaskToPrefixLength("255.255.255.240"));
     24   EXPECT_EQ(27, NetmaskToPrefixLength("255.255.255.224"));
     25   EXPECT_EQ(26, NetmaskToPrefixLength("255.255.255.192"));
     26   EXPECT_EQ(25, NetmaskToPrefixLength("255.255.255.128"));
     27   EXPECT_EQ(24, NetmaskToPrefixLength("255.255.255.0"));
     28   EXPECT_EQ(23, NetmaskToPrefixLength("255.255.254.0"));
     29   EXPECT_EQ(22, NetmaskToPrefixLength("255.255.252.0"));
     30   EXPECT_EQ(21, NetmaskToPrefixLength("255.255.248.0"));
     31   EXPECT_EQ(20, NetmaskToPrefixLength("255.255.240.0"));
     32   EXPECT_EQ(19, NetmaskToPrefixLength("255.255.224.0"));
     33   EXPECT_EQ(18, NetmaskToPrefixLength("255.255.192.0"));
     34   EXPECT_EQ(17, NetmaskToPrefixLength("255.255.128.0"));
     35   EXPECT_EQ(16, NetmaskToPrefixLength("255.255.0.0"));
     36   EXPECT_EQ(15, NetmaskToPrefixLength("255.254.0.0"));
     37   EXPECT_EQ(14, NetmaskToPrefixLength("255.252.0.0"));
     38   EXPECT_EQ(13, NetmaskToPrefixLength("255.248.0.0"));
     39   EXPECT_EQ(12, NetmaskToPrefixLength("255.240.0.0"));
     40   EXPECT_EQ(11, NetmaskToPrefixLength("255.224.0.0"));
     41   EXPECT_EQ(10, NetmaskToPrefixLength("255.192.0.0"));
     42   EXPECT_EQ(9, NetmaskToPrefixLength("255.128.0.0"));
     43   EXPECT_EQ(8, NetmaskToPrefixLength("255.0.0.0"));
     44   EXPECT_EQ(7, NetmaskToPrefixLength("254.0.0.0"));
     45   EXPECT_EQ(6, NetmaskToPrefixLength("252.0.0.0"));
     46   EXPECT_EQ(5, NetmaskToPrefixLength("248.0.0.0"));
     47   EXPECT_EQ(4, NetmaskToPrefixLength("240.0.0.0"));
     48   EXPECT_EQ(3, NetmaskToPrefixLength("224.0.0.0"));
     49   EXPECT_EQ(2, NetmaskToPrefixLength("192.0.0.0"));
     50   EXPECT_EQ(1, NetmaskToPrefixLength("128.0.0.0"));
     51   EXPECT_EQ(0, NetmaskToPrefixLength("0.0.0.0"));
     52   // Invalid netmasks
     53   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255"));
     54   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255.255.255"));
     55   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255.255.0"));
     56   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255.256"));
     57   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255.1"));
     58   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.240.255"));
     59   EXPECT_EQ(-1, NetmaskToPrefixLength("255.0.0.255"));
     60   EXPECT_EQ(-1, NetmaskToPrefixLength("255.255.255.FF"));
     61   EXPECT_EQ(-1, NetmaskToPrefixLength("255,255,255,255"));
     62   EXPECT_EQ(-1, NetmaskToPrefixLength("255 255 255 255"));
     63 }
     64 
     65 TEST_F(NetworkUtilTest, PrefixLengthToNetmask) {
     66   // Valid Prefix Lengths
     67   EXPECT_EQ("255.255.255.255", PrefixLengthToNetmask(32));
     68   EXPECT_EQ("255.255.255.254", PrefixLengthToNetmask(31));
     69   EXPECT_EQ("255.255.255.252", PrefixLengthToNetmask(30));
     70   EXPECT_EQ("255.255.255.248", PrefixLengthToNetmask(29));
     71   EXPECT_EQ("255.255.255.240", PrefixLengthToNetmask(28));
     72   EXPECT_EQ("255.255.255.224", PrefixLengthToNetmask(27));
     73   EXPECT_EQ("255.255.255.192", PrefixLengthToNetmask(26));
     74   EXPECT_EQ("255.255.255.128", PrefixLengthToNetmask(25));
     75   EXPECT_EQ("255.255.255.0", PrefixLengthToNetmask(24));
     76   EXPECT_EQ("255.255.254.0", PrefixLengthToNetmask(23));
     77   EXPECT_EQ("255.255.252.0", PrefixLengthToNetmask(22));
     78   EXPECT_EQ("255.255.248.0", PrefixLengthToNetmask(21));
     79   EXPECT_EQ("255.255.240.0", PrefixLengthToNetmask(20));
     80   EXPECT_EQ("255.255.224.0", PrefixLengthToNetmask(19));
     81   EXPECT_EQ("255.255.192.0", PrefixLengthToNetmask(18));
     82   EXPECT_EQ("255.255.128.0", PrefixLengthToNetmask(17));
     83   EXPECT_EQ("255.255.0.0", PrefixLengthToNetmask(16));
     84   EXPECT_EQ("255.254.0.0", PrefixLengthToNetmask(15));
     85   EXPECT_EQ("255.252.0.0", PrefixLengthToNetmask(14));
     86   EXPECT_EQ("255.248.0.0", PrefixLengthToNetmask(13));
     87   EXPECT_EQ("255.240.0.0", PrefixLengthToNetmask(12));
     88   EXPECT_EQ("255.224.0.0", PrefixLengthToNetmask(11));
     89   EXPECT_EQ("255.192.0.0", PrefixLengthToNetmask(10));
     90   EXPECT_EQ("255.128.0.0", PrefixLengthToNetmask(9));
     91   EXPECT_EQ("255.0.0.0", PrefixLengthToNetmask(8));
     92   EXPECT_EQ("254.0.0.0", PrefixLengthToNetmask(7));
     93   EXPECT_EQ("252.0.0.0", PrefixLengthToNetmask(6));
     94   EXPECT_EQ("248.0.0.0", PrefixLengthToNetmask(5));
     95   EXPECT_EQ("240.0.0.0", PrefixLengthToNetmask(4));
     96   EXPECT_EQ("224.0.0.0", PrefixLengthToNetmask(3));
     97   EXPECT_EQ("192.0.0.0", PrefixLengthToNetmask(2));
     98   EXPECT_EQ("128.0.0.0", PrefixLengthToNetmask(1));
     99   EXPECT_EQ("0.0.0.0", PrefixLengthToNetmask(0));
    100   // Invalid Prefix Lengths
    101   EXPECT_EQ("", PrefixLengthToNetmask(-1));
    102   EXPECT_EQ("", PrefixLengthToNetmask(33));
    103   EXPECT_EQ("", PrefixLengthToNetmask(255));
    104 }
    105 
    106 TEST_F(NetworkUtilTest, ParseScanResults) {
    107   base::ListValue list;
    108   std::vector<CellularScanResult> scan_results;
    109 
    110   // Empty list value.
    111   EXPECT_TRUE(ParseCellularScanResults(list, &scan_results));
    112 
    113   // List contains invalid item.
    114   list.AppendInteger(0);
    115   EXPECT_FALSE(ParseCellularScanResults(list, &scan_results));
    116 
    117   // Scan result has no network id.
    118   list.Clear();
    119   base::DictionaryValue* dict_value = new base::DictionaryValue();
    120   dict_value->SetString(shill::kStatusProperty, "available");
    121   list.Append(dict_value);
    122   EXPECT_TRUE(ParseCellularScanResults(list, &scan_results));
    123   EXPECT_TRUE(scan_results.empty());
    124 
    125   // Mixed parse results.
    126   dict_value = new base::DictionaryValue();
    127   dict_value->SetString(shill::kNetworkIdProperty, "000001");
    128   dict_value->SetString(shill::kStatusProperty, "unknown");
    129   dict_value->SetString(shill::kTechnologyProperty, "GSM");
    130   list.Append(dict_value);
    131 
    132   dict_value = new base::DictionaryValue();
    133   dict_value->SetString(shill::kNetworkIdProperty, "000002");
    134   dict_value->SetString(shill::kStatusProperty, "available");
    135   dict_value->SetString(shill::kLongNameProperty, "Long Name");
    136   list.Append(dict_value);
    137 
    138   EXPECT_TRUE(ParseCellularScanResults(list, &scan_results));
    139   EXPECT_EQ(static_cast<size_t>(2), scan_results.size());
    140   EXPECT_EQ("000001", scan_results[0].network_id);
    141   EXPECT_EQ("unknown", scan_results[0].status);
    142   EXPECT_EQ("GSM", scan_results[0].technology);
    143   EXPECT_TRUE(scan_results[0].long_name.empty());
    144   EXPECT_TRUE(scan_results[0].short_name.empty());
    145 
    146   EXPECT_EQ("000002", scan_results[1].network_id);
    147   EXPECT_EQ("available", scan_results[1].status);
    148   EXPECT_EQ("Long Name", scan_results[1].long_name);
    149   EXPECT_TRUE(scan_results[1].short_name.empty());
    150   EXPECT_TRUE(scan_results[1].technology.empty());
    151 }
    152