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509 | // Copyright (C) 2020 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <dhcpsrv/resource_handler.h>
#include <gtest/gtest.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
using namespace isc;
using namespace isc::asiolink;
using namespace isc::dhcp;
namespace {
// Verifies behavior with empty block.
TEST(ResourceHandleTest, empty) {
try {
// Get a resource handler.
ResourceHandler resource_handler;
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with empty block (v4).
TEST(ResourceHandleTest, empty4) {<--- syntax error
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with one handler.
TEST(ResourceHandleTest, one) {
IOAddress addr("2001:db8::1");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with one IPv4 handler.
TEST(ResourceHandleTest, one4) {
IOAddress addr("192.0.2.1");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two handlers.
TEST(ResourceHandleTest, two) {
IOAddress addr("2001:db8::");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_PD, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_PD, addr));
// Should return true (busy);
EXPECT_TRUE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two IPv4 handlers.
TEST(ResourceHandleTest, two4) {
IOAddress addr("192.0.2.1");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler4 resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock4(addr));
// Should return true (busy);
EXPECT_TRUE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two handlers in different blocks (sequence).
TEST(ResourceHandleTest, sequence) {
IOAddress addr("2001:db8::1");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
try {
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_NA, addr));
// Should return false (free)
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two IPv4 handlers in different blocks (sequence).
TEST(ResourceHandleTest, sequence4) {
IOAddress addr("192.0.2.1");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
try {
// Get a second resource handler.
ResourceHandler4 resource_handler2;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler2.tryLock4(addr));
// Should return false (free)
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two handlers for different addresses.
TEST(ResourceHandleTest, differentAddress) {
IOAddress addr("2001:db8::1");
IOAddress addr2("2001:db8::2");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_NA, addr2));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two IPv4 handlers for different addresses.
TEST(ResourceHandleTest, differentAddress4) {
IOAddress addr("192.0.2.1");
IOAddress addr2("192.0.2.2");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler4 resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock4(addr2));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two handlers for different types.
TEST(ResourceHandleTest, differentTypes) {
IOAddress addr("2001:db8::");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_PD, addr));
// Should return false (free).
EXPECT_FALSE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior of the isLocked predicate.
TEST(ResourceHandleTest, isLocked) {
IOAddress addr("2001:db8::1");
IOAddress addr2("2001:db8::2");
IOAddress addr3("2001:db8::3");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_NA, addr2));
// Should return false (free).
EXPECT_FALSE(busy);
// Check ownership.
EXPECT_TRUE(resource_handler.isLocked(Lease::TYPE_NA, addr));
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_NA, addr2));
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_NA, addr3));
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_PD, addr));
EXPECT_FALSE(resource_handler2.isLocked(Lease::TYPE_NA, addr));
EXPECT_TRUE(resource_handler2.isLocked(Lease::TYPE_NA, addr2));
EXPECT_FALSE(resource_handler2.isLocked(Lease::TYPE_NA, addr3));
EXPECT_FALSE(resource_handler2.isLocked(Lease::TYPE_PD, addr2));
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior with two IPv4 handlers.
TEST(ResourceHandleTest, isLocked4) {
IOAddress addr("192.0.2.1");
IOAddress addr2("192.0.2.2");
IOAddress addr3("192.0.2.3");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Get a second resource handler.
ResourceHandler4 resource_handler2;
// Try to lock it.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock4(addr2));
// Should return false (free).
EXPECT_FALSE(busy);
// Check ownership.
EXPECT_TRUE(resource_handler.isLocked4(addr));
EXPECT_FALSE(resource_handler.isLocked4(addr2));
EXPECT_FALSE(resource_handler.isLocked4(addr3));
EXPECT_FALSE(resource_handler2.isLocked4(addr));
EXPECT_TRUE(resource_handler2.isLocked4(addr2));
EXPECT_FALSE(resource_handler2.isLocked4(addr3));
// ResourceHandler4 derives from ResourceHandler.
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_NA, addr));
EXPECT_FALSE(resource_handler2.isLocked(Lease::TYPE_NA, addr2));
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies that double tryLock call for the same resource returns busy.
TEST(ResourceHandleTest, doubleTryLock) {
IOAddress addr("2001:db8::");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_PD, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Try to lock it again.
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_PD, addr));
// Should return true (busy);
EXPECT_TRUE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies that double tryLock call for the same resource returns busy (v4).
TEST(ResourceHandleTest, doubleTryLock4) {
IOAddress addr("192.0.2.1");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// Try to lock it again.
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return true (busy);
EXPECT_TRUE(busy);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior of the unLock method.
TEST(ResourceHandleTest, unLock) {
IOAddress addr("2001:db8::1");
try {
// Get a resource handler.
ResourceHandler resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// The resource is owned by us.
EXPECT_TRUE(resource_handler.isLocked(Lease::TYPE_NA, addr));
// Try to unlock it.
EXPECT_NO_THROW(resource_handler.unLock(Lease::TYPE_NA, addr));
// The resource is no longer owned by us.
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_NA, addr));
// Get a second resource handler.
ResourceHandler resource_handler2;
// Try to lock it by the second handler.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock(Lease::TYPE_NA, addr));
// Should return false (free).
EXPECT_FALSE(busy);
// The resource is owned by the second handler.
EXPECT_FALSE(resource_handler.isLocked(Lease::TYPE_NA, addr));
EXPECT_TRUE(resource_handler2.isLocked(Lease::TYPE_NA, addr));
// Only the owner is allowed to release a resource.
EXPECT_THROW(resource_handler.unLock(Lease::TYPE_NA, addr), NotFound);
EXPECT_NO_THROW(resource_handler2.unLock(Lease::TYPE_NA, addr));
// Once.
EXPECT_THROW(resource_handler2.unLock(Lease::TYPE_NA, addr), NotFound);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
// Verifies behavior of the unLock method.
TEST(ResourceHandleTest, unLock4) {
IOAddress addr("192.0.2.1");
try {
// Get a resource handler.
ResourceHandler4 resource_handler;
// Try to lock it.
bool busy = false;
EXPECT_NO_THROW(busy = !resource_handler.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// The resource is owned by us.
EXPECT_TRUE(resource_handler.isLocked4(addr));
// Try to unlock it.
EXPECT_NO_THROW(resource_handler.unLock4(addr));
// The resource is no longer owned by us.
EXPECT_FALSE(resource_handler.isLocked4(addr));
// Get a second resource handler
ResourceHandler4 resource_handler2;
// Try to lock it by the second handler.
EXPECT_NO_THROW(busy = !resource_handler2.tryLock4(addr));
// Should return false (free).
EXPECT_FALSE(busy);
// The resource is owned by the second handler.
EXPECT_FALSE(resource_handler.isLocked4(addr));
EXPECT_TRUE(resource_handler2.isLocked4(addr));
// Only the owner is allowed to release a resource.
EXPECT_THROW(resource_handler.unLock4(addr), NotFound);
EXPECT_NO_THROW(resource_handler2.unLock4(addr));
// Once.
EXPECT_THROW(resource_handler2.unLock4(addr), NotFound);
} catch (const std::exception& ex) {
ADD_FAILURE() << "unexpected exception: " << ex.what();
}
}
} // end of anonymous namespace
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