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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/smb_client/discovery/network_scanner.h"
#include <map>
#include <string>
#include <utility>
#include "base/functional/bind.h"
#include "chrome/browser/ash/smb_client/discovery/in_memory_host_locator.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash::smb_client {
namespace {
// Expects |actual_hosts| to equal |expected_hosts|.
void ExpectMapEntriesEqual(const HostMap& expected_hosts,
bool success,
const HostMap& actual_hosts) {
EXPECT_TRUE(success);
EXPECT_EQ(expected_hosts, actual_hosts);
}
void ExpectFailure(bool success, const HostMap& actual_hosts) {
EXPECT_FALSE(success);
EXPECT_TRUE(actual_hosts.empty());
}
} // namespace
class NetworkScannerTest : public testing::Test {
public:
NetworkScannerTest() = default;
NetworkScannerTest(const NetworkScannerTest&) = delete;
NetworkScannerTest& operator=(const NetworkScannerTest&) = delete;
~NetworkScannerTest() override = default;
protected:
void RegisterHostLocatorWithHosts(const HostMap& hosts) {
std::unique_ptr<InMemoryHostLocator> host_locator =
std::make_unique<InMemoryHostLocator>();
host_locator->AddHosts(hosts);
scanner_.RegisterHostLocator(std::move(host_locator));
}
void ExpectHostMapEqual(const HostMap& expected_hosts) {
scanner_.FindHostsInNetwork(
base::BindOnce(&ExpectMapEntriesEqual, expected_hosts));
}
void ExpectCallFailure() {
scanner_.FindHostsInNetwork(base::BindOnce(&ExpectFailure));
}
void ExpectResolvedHostEquals(const std::string& expected,
const std::string& host) {
EXPECT_EQ(expected, scanner_.ResolveHost(host).ToString());
}
// Registers |hosts| with a host locator and call FindHostsInNetwork() which
// caches the results.
void RegisterAndCacheHosts(const HostMap& hosts) {
RegisterHostLocatorWithHosts(hosts);
ExpectHostMapEqual(hosts);
}
private:
NetworkScanner scanner_;
};
TEST_F(NetworkScannerTest, SuccessIsFalseAndHostsMapIsEmptyWithNoLocator) {
ExpectCallFailure();
}
TEST_F(NetworkScannerTest, ShouldFindNoHostsWithOneLocator) {
RegisterHostLocatorWithHosts(HostMap());
ExpectHostMapEqual(HostMap());
}
TEST_F(NetworkScannerTest, ShouldFindNoHostsWithMultipleLocators) {
RegisterHostLocatorWithHosts(HostMap());
RegisterHostLocatorWithHosts(HostMap());
ExpectHostMapEqual(HostMap());
}
TEST_F(NetworkScannerTest, ShouldFindOneHostWithOneLocator) {
HostMap hosts;
hosts["share1"] = {1, 2, 3, 4};
RegisterHostLocatorWithHosts(hosts);
ExpectHostMapEqual(hosts);
}
TEST_F(NetworkScannerTest, ShouldFindMultipleHostsWithOneLocator) {
HostMap hosts;
hosts["share1"] = {1, 2, 3, 4};
hosts["share2"] = {5, 6, 7, 8};
RegisterHostLocatorWithHosts(hosts);
ExpectHostMapEqual(hosts);
}
TEST_F(NetworkScannerTest, ShouldFindMultipleHostsWithMultipleLocators) {
HostMap hosts1;
hosts1["share1"] = {1, 2, 3, 4};
hosts1["share2"] = {5, 6, 7, 8};
RegisterHostLocatorWithHosts(hosts1);
HostMap hosts2;
hosts2["share3"] = {11, 12, 13, 14};
hosts2["share4"] = {15, 16, 17, 18};
RegisterHostLocatorWithHosts(hosts2);
HostMap expected;
expected["share1"] = {1, 2, 3, 4};
expected["share2"] = {5, 6, 7, 8};
expected["share3"] = {11, 12, 13, 14};
expected["share4"] = {15, 16, 17, 18};
ExpectHostMapEqual(expected);
}
TEST_F(NetworkScannerTest, ShouldResolveMultipleHostsWithSameAddress) {
HostMap hosts1;
hosts1["share1"] = {1, 2, 3, 4};
hosts1["share2"] = {5, 6, 7, 8};
RegisterHostLocatorWithHosts(hosts1);
HostMap hosts2;
hosts2["share2"] = {11, 12, 13, 14};
hosts2["share3"] = {15, 16, 17, 18};
RegisterHostLocatorWithHosts(hosts2);
// share2 should have the value from host1 since it is found first.
HostMap expected;
expected["share1"] = {1, 2, 3, 4};
expected["share2"] = {5, 6, 7, 8};
expected["share3"] = {15, 16, 17, 18};
ExpectHostMapEqual(expected);
}
TEST_F(NetworkScannerTest, ResolveHostReturnsEmptyStringIfNoHostFound) {
HostMap hosts;
// Register a hostlocator with no hosts.
RegisterAndCacheHosts(hosts);
// Returns an empty string since host could not be resolved.
ExpectResolvedHostEquals("", "server");
}
TEST_F(NetworkScannerTest, ResolveHostResolvesHostsFound) {
HostMap hosts;
hosts["share1"] = {1, 2, 3, 4};
hosts["share2"] = {4, 5, 6, 7};
RegisterAndCacheHosts(hosts);
ExpectResolvedHostEquals("1.2.3.4", "share1");
ExpectResolvedHostEquals("4.5.6.7", "share2");
// Returns an empty string since host could not be resolved.
ExpectResolvedHostEquals("", "share3");
}
TEST_F(NetworkScannerTest, ResolveHostWithUppercaseHost) {
HostMap hosts;
hosts["share1"] = {1, 2, 3, 4};
RegisterAndCacheHosts(hosts);
ExpectResolvedHostEquals("1.2.3.4", "SHARE1");
}
TEST_F(NetworkScannerTest, HostsAreStoredAsLowercase) {
HostMap hosts;
hosts["SHARE1"] = {1, 2, 3, 4};
hosts["sHaRe2"] = {11, 12, 13, 14};
hosts["Share3"] = {21, 22, 23, 24};
RegisterHostLocatorWithHosts(hosts);
// expected_hosts should have all lowercase hosts.
HostMap expected_hosts;
expected_hosts["share1"] = {1, 2, 3, 4};
expected_hosts["share2"] = {11, 12, 13, 14};
expected_hosts["share3"] = {21, 22, 23, 24};
ExpectHostMapEqual(expected_hosts);
ExpectResolvedHostEquals("1.2.3.4", "share1");
ExpectResolvedHostEquals("11.12.13.14", "share2");
ExpectResolvedHostEquals("21.22.23.24", "share3");
}
} // namespace ash::smb_client
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