| // Copyright (c) 2013 The Chromium OS 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 "shill/scan_session.h" |
| |
| #include <limits> |
| #include <set> |
| #include <vector> |
| |
| #include <base/memory/scoped_ptr.h> |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| |
| #include "shill/manager.h" |
| #include "shill/mock_netlink_manager.h" |
| #include "shill/netlink_manager.h" |
| |
| using std::set; |
| using std::vector; |
| using testing::_; |
| using testing::ContainerEq; |
| using testing::Invoke; |
| using testing::Return; |
| using testing::Test; |
| |
| namespace shill { |
| |
| static const uint16_t kExpectedFreq5640 = 5640; |
| static const uint16_t kExpectedFreq5600 = 5600; |
| static const uint16_t kExpectedFreq5580 = 5580; |
| static const uint16_t kExpectedFreq5560 = 5560; |
| static const uint16_t kExpectedFreq5620 = 5620; |
| |
| static WiFiProvider::FrequencyCount kConnectedFrequencies[] = { |
| WiFiProvider::FrequencyCount(kExpectedFreq5640, 40), // 40th percentile. |
| WiFiProvider::FrequencyCount(kExpectedFreq5600, 25), // 65th percentile. |
| WiFiProvider::FrequencyCount(kExpectedFreq5580, 20), // 85th percentile. |
| WiFiProvider::FrequencyCount(kExpectedFreq5560, 10), // 95th percentile. |
| WiFiProvider::FrequencyCount(kExpectedFreq5620, 5) // 100th percentile. |
| }; |
| |
| static const uint16_t kExpectedFreq2432 = 2432; |
| static const uint16_t kExpectedFreq2427 = 2427; |
| static const uint16_t kExpectedFreq2422 = 2422; |
| static const uint16_t kExpectedFreq2417 = 2417; |
| static const uint16_t kExpectedFreq2412 = 2412; |
| |
| static uint16_t kUnconnectedFrequencies[] = { |
| kExpectedFreq2432, |
| kExpectedFreq2427, |
| kExpectedFreq2422, |
| kExpectedFreq2417, |
| kExpectedFreq2412 |
| }; |
| |
| // A number larger than 1 to make sure that ScanSession doesn't just snag up |
| // to 100 percent and stop. |
| static float kEverything = 1.1; |
| |
| class ScanSessionTest : public Test { |
| public: |
| // Test set of "all the other frequencies this device can support" in |
| // sorted order. |
| ScanSession *ConfigureScanSession() { |
| WiFiProvider::FrequencyCountList connected_frequencies = |
| GetScanFrequencies(); |
| |
| vector<uint16_t> unconnected_frequencies( |
| kUnconnectedFrequencies, |
| kUnconnectedFrequencies + arraysize(kUnconnectedFrequencies)); |
| ScanSession *scan_session(new ScanSession(connected_frequencies, |
| unconnected_frequencies)); |
| return scan_session; |
| } |
| |
| WiFiProvider::FrequencyCountList GetScanFrequencies() const { |
| WiFiProvider::FrequencyCountList freq_connects_list( |
| kConnectedFrequencies, |
| kConnectedFrequencies + arraysize(kConnectedFrequencies)); |
| return freq_connects_list; |
| } |
| |
| private: |
| MockNetlinkManager netlink_manager_; |
| }; |
| |
| // Test that we can get a bunch of frequencies up to a specified fraction. |
| TEST_F(ScanSessionTest, FractionTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 83% of the connected values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| result = scan_session->GetScanFrequencies( |
| .83, 1, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // Get the next 4 values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5560); |
| expected.push_back(kExpectedFreq5620); |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| result = scan_session->GetScanFrequencies(kEverything, 1, 4); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the remaining list. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies( |
| kEverything, 20, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get a bunch of frequencies up to a specified fraction, |
| // followed by another group up to a specified fraction. |
| TEST_F(ScanSessionTest, TwoFractionsTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 60% of the connected values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| result = scan_session->GetScanFrequencies( |
| .60, 0, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // Get the next 32% of the connected values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5580); |
| expected.push_back(kExpectedFreq5560); |
| result = scan_session->GetScanFrequencies( |
| .32, 0, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the remaining list. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5620); |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies( |
| kEverything, std::numeric_limits<size_t>::max(), |
| std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get a bunch of frequencies up to a minimum count, even |
| // when the requested fraction has already been reached. |
| TEST_F(ScanSessionTest, MinTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 3 previously seen values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| result = scan_session->GetScanFrequencies( |
| .30, 3, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // Get the next value by requensting a minimum of 1. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5560); |
| result = scan_session->GetScanFrequencies( |
| 0.0, 1, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the remaining list. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5620); |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies( |
| kEverything, std::numeric_limits<size_t>::max(), |
| std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get up to a specified maximum number of frequencies. |
| TEST_F(ScanSessionTest, MaxTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 7 values (crosses seen/unseen boundary). |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| expected.push_back(kExpectedFreq5560); |
| expected.push_back(kExpectedFreq5620); |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| result = scan_session->GetScanFrequencies(kEverything, 1, 7); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the remaining list. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies( |
| kEverything, 20, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get exactly the seen frequencies and exactly the unseen |
| // ones. |
| TEST_F(ScanSessionTest, ExactTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 5 values -- exectly on the seen/unseen border. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| expected.push_back(kExpectedFreq5560); |
| expected.push_back(kExpectedFreq5620); |
| result = scan_session->GetScanFrequencies(kEverything, 5, 5); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the last 5. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies(kEverything, 5, 5); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get everything in one read. |
| TEST_F(ScanSessionTest, AllOneReadTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| expected.push_back(kExpectedFreq5560); |
| expected.push_back(kExpectedFreq5620); |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| vector<uint16_t> result; |
| result = scan_session->GetScanFrequencies( |
| kEverything, std::numeric_limits<size_t>::max(), |
| std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // Test that we can get all the previously seen frequencies (and only the |
| // previously seen frequencies) via the requested fraction. |
| TEST_F(ScanSessionTest, EverythingFractionTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| |
| // Get the first 100% of the connected values. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| expected.push_back(kExpectedFreq5600); |
| expected.push_back(kExpectedFreq5580); |
| expected.push_back(kExpectedFreq5560); |
| expected.push_back(kExpectedFreq5620); |
| result = scan_session->GetScanFrequencies( |
| 1.0, 0, std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| |
| // And, get the remaining list. |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2432); |
| expected.push_back(kExpectedFreq2427); |
| expected.push_back(kExpectedFreq2422); |
| expected.push_back(kExpectedFreq2417); |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies( |
| kEverything, std::numeric_limits<size_t>::max(), |
| std::numeric_limits<size_t>::max()); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| // Test that we can get each value individually. |
| TEST_F(ScanSessionTest, IndividualReadsTest) { |
| scoped_ptr<ScanSession> scan_session(ConfigureScanSession()); |
| vector<uint16_t> result; |
| static const float kArbitraryFraction = 0.83; |
| |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5640); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5600); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5580); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5560); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq5620); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2432); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2427); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2422); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2417); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_TRUE(scan_session->HasMoreFrequencies()); |
| } |
| { |
| vector<uint16_t> expected; |
| expected.push_back(kExpectedFreq2412); |
| result = scan_session->GetScanFrequencies(kArbitraryFraction, 1, 1); |
| EXPECT_THAT(result, ContainerEq(expected)); |
| EXPECT_FALSE(scan_session->HasMoreFrequencies()); |
| } |
| } |
| |
| } // namespace shill |