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// Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <hooks/callout_handle.h>
#include <hooks/callout_manager.h>
#include <hooks/library_manager.h>
#include <hooks/library_manager_collection.h>
#include <hooks/tests/common_test_class.h>
#include <hooks/tests/test_libraries.h>
#include <boost/shared_ptr.hpp>
#include <gtest/gtest.h>
#include <algorithm>
#include <string>
using namespace isc;
using namespace isc::hooks;
using namespace std;
namespace {
/// @brief Library manager collection test class
class LibraryManagerCollectionTest : public ::testing::Test,
public HooksCommonTestClass {
};
/// @brief Public library manager collection class
///
/// This is an instance of the LibraryManagerCollection class but with the
/// protected methods made public for test purposes.
class PublicLibraryManagerCollection
: public isc::hooks::LibraryManagerCollection {
public:
/// @brief Constructor
///
/// @param List of libraries that this collection will manage. The order
/// of the libraries is important.
PublicLibraryManagerCollection(const std::vector<std::string>& libraries)
: LibraryManagerCollection(libraries)
{}
/// Public methods that call protected methods on the superclass.
using LibraryManagerCollection::unloadLibraries;
};
// This is effectively the same test as for LibraryManager, but using the
// LibraryManagerCollection object.
TEST_F(LibraryManagerCollectionTest, LoadLibraries) {
// Set up the list of libraries to be loaded.
std::vector<std::string> library_names;
library_names.push_back(std::string(FULL_CALLOUT_LIBRARY));
library_names.push_back(std::string(BASIC_CALLOUT_LIBRARY));
// Set up the library manager collection and get the callout manager we'll
// be using.
PublicLibraryManagerCollection lm_collection(library_names);
// Load the libraries.
EXPECT_TRUE(lm_collection.loadLibraries());
EXPECT_EQ(2, lm_collection.getLoadedLibraryCount());
// Execute the callouts. The first library implements the calculation.
//
// r3 = (7 * d1 - d2) * d3
//
// The last-loaded library implements the calculation
//
// r3 = (10 + d1) * d2 - d3
//
// Putting the processing for each library together in the appropriate
// order, we get:
//
// r3 = ((10 * d1 + d1) - d2) * d2 * d3 - d3
boost::shared_ptr<CalloutManager> manager =
lm_collection.getCalloutManager();
{
SCOPED_TRACE("Doing calculation with libraries loaded");
executeCallCallouts(manager, 10, 3, 33, 2, 62, 3, 183);
}
// Try unloading the libraries.
EXPECT_NO_THROW(lm_collection.unloadLibraries());
EXPECT_EQ(0, lm_collection.getLoadedLibraryCount());
// Re-execute the calculation - callouts can be called but as nothing
// happens, the result should always be -1.
{
SCOPED_TRACE("Doing calculation with libraries not loaded");
executeCallCallouts(manager, -1, 3, -1, 22, -1, 83, -1);
}
}
// This is effectively the same test as above, but with a library generating
// an error when loaded. It is expected that no libraries will be loaded.
TEST_F(LibraryManagerCollectionTest, LoadLibrariesWithError) {
// Set up the list of libraries to be loaded.
std::vector<std::string> library_names;
library_names.push_back(std::string(FULL_CALLOUT_LIBRARY));
library_names.push_back(std::string(INCORRECT_VERSION_LIBRARY));
library_names.push_back(std::string(BASIC_CALLOUT_LIBRARY));
// Set up the library manager collection and get the callout manager we'll
// be using.
PublicLibraryManagerCollection lm_collection(library_names);
// Load the libraries. We expect a failure status to be returned as
// one of the libraries failed to load.
EXPECT_FALSE(lm_collection.loadLibraries());
// Expect no libraries were loaded.
EXPECT_EQ(0, lm_collection.getLoadedLibraryCount());
}
// Check that everything works even with no libraries loaded.
TEST_F(LibraryManagerCollectionTest, NoLibrariesLoaded) {
// Set up the list of libraries to be loaded.
std::vector<std::string> library_names;
// Set up the library manager collection and get the callout manager we'll
// be using.
LibraryManagerCollection lm_collection(library_names);
EXPECT_TRUE(lm_collection.loadLibraries());
EXPECT_EQ(0, lm_collection.getLoadedLibraryCount());
boost::shared_ptr<CalloutManager> manager =
lm_collection.getCalloutManager();
// Execute the calculation - callouts can be called but as nothing
// happens, the result should always be -1.
executeCallCallouts(manager, -1, 3, -1, 22, -1, 83, -1);
}
// Check that we can get the names of the libraries.
TEST_F(LibraryManagerCollectionTest, LibraryNames) {
// Set up the list of libraries to be loaded.
std::vector<std::string> library_names;
library_names.push_back(std::string(FULL_CALLOUT_LIBRARY));
library_names.push_back(std::string(BASIC_CALLOUT_LIBRARY));
// Set up the library manager collection and get the callout manager we'll
// be using.
PublicLibraryManagerCollection lm_collection(library_names);
// Check the names before the libraries are loaded.
std::vector<std::string> collection_names = lm_collection.getLibraryNames();
EXPECT_TRUE(library_names == collection_names);
// Load the libraries and check the names again.
EXPECT_TRUE(lm_collection.loadLibraries());
EXPECT_EQ(2, lm_collection.getLoadedLibraryCount());
collection_names = lm_collection.getLibraryNames();
EXPECT_TRUE(library_names == collection_names);
}
// Test the library validation function.
TEST_F(LibraryManagerCollectionTest, validateLibraries) {
// Vector of libraries that failed validation
std::vector<std::string> failed;
// Test different vectors of libraries.
// No libraries should return a success.
std::vector<std::string> libraries;
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed.empty());
// Single valid library should validate.
libraries.clear();
libraries.push_back(BASIC_CALLOUT_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed.empty());
// Multiple valid libraries should succeed.
libraries.clear();
libraries.push_back(BASIC_CALLOUT_LIBRARY);
libraries.push_back(FULL_CALLOUT_LIBRARY);
libraries.push_back(UNLOAD_CALLOUT_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed.empty());
// Single invalid library should fail.
libraries.clear();
libraries.push_back(NOT_PRESENT_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed == libraries);
// Multiple invalid libraries should fail.
libraries.clear();
libraries.push_back(INCORRECT_VERSION_LIBRARY);
libraries.push_back(NO_VERSION_LIBRARY);
libraries.push_back(FRAMEWORK_EXCEPTION_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed == libraries);
// Combination of valid and invalid (first one valid) should fail.
libraries.clear();
libraries.push_back(FULL_CALLOUT_LIBRARY);
libraries.push_back(INCORRECT_VERSION_LIBRARY);
libraries.push_back(NO_VERSION_LIBRARY);
std::vector<std::string> expected_failures;
expected_failures.push_back(INCORRECT_VERSION_LIBRARY);
expected_failures.push_back(NO_VERSION_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed == expected_failures);
// Combination of valid and invalid (first one invalid) should fail.
libraries.clear();
libraries.push_back(NO_VERSION_LIBRARY);
libraries.push_back(FULL_CALLOUT_LIBRARY);
libraries.push_back(INCORRECT_VERSION_LIBRARY);
expected_failures.clear();
expected_failures.push_back(NO_VERSION_LIBRARY);
expected_failures.push_back(INCORRECT_VERSION_LIBRARY);
failed = LibraryManagerCollection::validateLibraries(libraries);
EXPECT_TRUE(failed == expected_failures);
}
} // Anonymous namespace
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