mgmt, main: add strategy choice management and deprecate fib/set-strategy

refs: #1311

Change-Id: Icc88f201f3c13a5a25ec1bdadec35f93c76b2b94
diff --git a/tests/mgmt/strategy-choice-manager.cpp b/tests/mgmt/strategy-choice-manager.cpp
new file mode 100644
index 0000000..e2285c2
--- /dev/null
+++ b/tests/mgmt/strategy-choice-manager.cpp
@@ -0,0 +1,427 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (C) 2014 Named Data Networking Project
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "mgmt/strategy-choice-manager.hpp"
+#include "face/face.hpp"
+#include "mgmt/internal-face.hpp"
+#include "table/name-tree.hpp"
+#include "table/strategy-choice.hpp"
+#include "fw/forwarder.hpp"
+#include "fw/strategy.hpp"
+#include "tests/face/dummy-face.hpp"
+
+
+#include "tests/test-common.hpp"
+
+namespace nfd {
+namespace tests {
+
+NFD_LOG_INIT("StrategyChoiceManagerTest");
+
+class DummyStrategy : public fw::Strategy
+{
+public:
+  DummyStrategy(Forwarder& forwarder, const Name& strategyName)
+    : fw::Strategy(forwarder, strategyName)
+  {
+
+  }
+
+  virtual
+  ~DummyStrategy()
+  {
+
+  }
+
+  virtual void
+  afterReceiveInterest(const Face& inFace,
+                       const Interest& interest,
+                       shared_ptr<fib::Entry> fibEntry,
+                       shared_ptr<pit::Entry> pitEntry)
+  {
+
+  }
+};
+
+class TestStrategyA : public DummyStrategy
+{
+public:
+  TestStrategyA(Forwarder& forwarder)
+    : DummyStrategy(forwarder, "/localhost/nfd/strategy/test-strategy-a")
+  {
+  }
+
+  virtual
+  ~TestStrategyA()
+  {
+
+  }
+};
+
+class TestStrategyB : public DummyStrategy
+{
+public:
+  TestStrategyB(Forwarder& forwarder)
+    : DummyStrategy(forwarder, "/localhost/nfd/strategy/test-strategy-b")
+  {
+  }
+
+  virtual
+  ~TestStrategyB()
+  {
+
+  }
+};
+
+class StrategyChoiceManagerFixture : protected BaseFixture
+{
+public:
+
+  StrategyChoiceManagerFixture()
+    : m_nameTree(1024)
+    , m_strategyChoice(m_nameTree, make_shared<TestStrategyA>(boost::ref(m_forwarder)))
+    , m_face(make_shared<InternalFace>())
+    , m_manager(m_strategyChoice, m_face)
+    , m_callbackFired(false)
+  {
+
+  }
+
+  void
+  validateControlResponseCommon(const Data& response,
+                                const Name& expectedName,
+                                uint32_t expectedCode,
+                                const std::string& expectedText,
+                                ControlResponse& control)
+  {
+    m_callbackFired = true;
+    Block controlRaw = response.getContent().blockFromValue();
+
+    control.wireDecode(controlRaw);
+
+    NFD_LOG_DEBUG("received control response"
+                  << " Name: " << response.getName()
+                  << " code: " << control.getCode()
+                  << " text: " << control.getText());
+
+    BOOST_CHECK_EQUAL(response.getName(), expectedName);
+    BOOST_CHECK_EQUAL(control.getCode(), expectedCode);
+    BOOST_CHECK_EQUAL(control.getText(), expectedText);
+  }
+
+  void
+  validateControlResponse(const Data& response,
+                          const Name& expectedName,
+                          uint32_t expectedCode,
+                          const std::string& expectedText)
+  {
+    ControlResponse control;
+    validateControlResponseCommon(response, expectedName,
+                                  expectedCode, expectedText, control);
+
+    if (!control.getBody().empty())
+      {
+        BOOST_FAIL("found unexpected control response body");
+      }
+  }
+
+  void
+  validateControlResponse(const Data& response,
+                          const Name& expectedName,
+                          uint32_t expectedCode,
+                          const std::string& expectedText,
+                          const Block& expectedBody)
+  {
+    ControlResponse control;
+    validateControlResponseCommon(response, expectedName,
+                                  expectedCode, expectedText, control);
+
+    BOOST_REQUIRE(!control.getBody().empty());
+    BOOST_REQUIRE(control.getBody().value_size() == expectedBody.value_size());
+
+    BOOST_CHECK(memcmp(control.getBody().value(), expectedBody.value(),
+                       expectedBody.value_size()) == 0);
+
+  }
+
+  bool
+  didCallbackFire()
+  {
+    return m_callbackFired;
+  }
+
+  void
+  resetCallbackFired()
+  {
+    m_callbackFired = false;
+  }
+
+  shared_ptr<InternalFace>&
+  getFace()
+  {
+    return m_face;
+  }
+
+  StrategyChoiceManager&
+  getManager()
+  {
+    return m_manager;
+  }
+
+  StrategyChoice&
+  getStrategyChoice()
+  {
+    return m_strategyChoice;
+  }
+
+protected:
+  Forwarder m_forwarder;
+  NameTree m_nameTree;
+  StrategyChoice m_strategyChoice;
+  shared_ptr<InternalFace> m_face;
+  StrategyChoiceManager m_manager;
+
+private:
+  bool m_callbackFired;
+};
+
+class AllStrategiesFixture : public StrategyChoiceManagerFixture
+{
+public:
+  AllStrategiesFixture()
+  {
+    m_strategyChoice.install(make_shared<TestStrategyB>(boost::ref(m_forwarder)));
+  }
+
+  virtual
+  ~AllStrategiesFixture()
+  {
+
+  }
+};
+
+BOOST_FIXTURE_TEST_SUITE(MgmtStrategyChoiceManager, AllStrategiesFixture)
+
+BOOST_AUTO_TEST_CASE(TestFireInterestFilter)
+{
+  shared_ptr<Interest> command(make_shared<Interest>("/localhost/nfd/strategy-choice"));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this,  _1,
+         command->getName(), 400, "Malformed command");
+
+  getFace()->sendInterest(*command);
+
+  BOOST_REQUIRE(didCallbackFire());
+}
+
+BOOST_AUTO_TEST_CASE(MalformedCommmand)
+{
+  shared_ptr<Interest> command(make_shared<Interest>("/localhost/nfd/strategy-choice"));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 400, "Malformed command");
+
+  getManager().onStrategyChoiceRequest(*command);
+
+  BOOST_REQUIRE(didCallbackFire());
+}
+
+BOOST_AUTO_TEST_CASE(UnsupportedVerb)
+{
+  ndn::nfd::FibManagementOptions options;
+  options.setStrategy("/localhost/nfd/strategy/test-strategy-b");
+
+  Block encodedOptions(options.wireEncode());
+
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("unsupported");
+  commandName.append(encodedOptions);
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 501, "Unsupported command");
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+}
+
+BOOST_AUTO_TEST_CASE(BadOptionParse)
+{
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("set");
+  commandName.append("NotReallyOptions");
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 400, "Malformed command");
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+}
+
+BOOST_AUTO_TEST_CASE(SetStrategies)
+{
+  ndn::nfd::FibManagementOptions options;
+  options.setName("/test");
+  options.setStrategy("/localhost/nfd/strategy/test-strategy-b");
+
+  Block encodedOptions(options.wireEncode());
+
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("set");
+  commandName.append(encodedOptions);
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 200, "Success", encodedOptions);
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+  fw::Strategy& strategy = getStrategyChoice().findEffectiveStrategy("/test");
+  BOOST_REQUIRE_EQUAL(strategy.getName(), "/localhost/nfd/strategy/test-strategy-b");
+
+  resetCallbackFired();
+  getFace()->onReceiveData.clear();
+}
+
+BOOST_AUTO_TEST_CASE(SetUnsupportedStrategy)
+{
+  ndn::nfd::FibManagementOptions options;
+  options.setName("/test");
+  options.setStrategy("/localhost/nfd/strategy/unit-test-doesnotexist");
+
+  Block encodedOptions(options.wireEncode());
+
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("set");
+  commandName.append(encodedOptions);
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 504, "Unsupported strategy");
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+  fw::Strategy& strategy = getStrategyChoice().findEffectiveStrategy("/test");
+  BOOST_CHECK_EQUAL(strategy.getName(), "/localhost/nfd/strategy/test-strategy-a");
+}
+
+class DefaultStrategyOnlyFixture : public StrategyChoiceManagerFixture
+{
+public:
+  DefaultStrategyOnlyFixture()
+    : StrategyChoiceManagerFixture()
+  {
+
+  }
+
+  virtual
+  ~DefaultStrategyOnlyFixture()
+  {
+
+  }
+};
+
+
+/// \todo I'm not sure this code branch (code 405) can happen. The manager tests for the strategy first and will return 504.
+// BOOST_FIXTURE_TEST_CASE(SetNotInstalled, DefaultStrategyOnlyFixture)
+// {
+//   BOOST_REQUIRE(!getStrategyChoice().hasStrategy("/localhost/nfd/strategy/test-strategy-b"));
+//   ndn::nfd::FibManagementOptions options;
+//   options.setName("/test");
+//   options.setStrategy("/localhost/nfd/strategy/test-strategy-b");
+
+//   Block encodedOptions(options.wireEncode());
+
+//   Name commandName("/localhost/nfd/strategy-choice");
+//   commandName.append("set");
+//   commandName.append(encodedOptions);
+
+//   shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+//   getFace()->onReceiveData +=
+//     bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+//          command->getName(), 405, "Strategy not installed");
+
+//   getManager().onValidatedStrategyChoiceRequest(command);
+
+//   BOOST_REQUIRE(didCallbackFire());
+//   fw::Strategy& strategy = getStrategyChoice().findEffectiveStrategy("/test");
+//   BOOST_CHECK_EQUAL(strategy.getName(), "/localhost/nfd/strategy/test-strategy-a");
+// }
+
+BOOST_AUTO_TEST_CASE(Unset)
+{
+  ndn::nfd::FibManagementOptions options;
+  options.setName("/test");
+
+  BOOST_REQUIRE(m_strategyChoice.insert("/test", "/localhost/nfd/strategy/test-strategy-b"));
+  BOOST_REQUIRE_EQUAL(m_strategyChoice.findEffectiveStrategy("/test").getName(),
+                      "/localhost/nfd/strategy/test-strategy-b");
+
+  Block encodedOptions(options.wireEncode());
+
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("unset");
+  commandName.append(encodedOptions);
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 200, "Success", encodedOptions);
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+
+  BOOST_CHECK_EQUAL(m_strategyChoice.findEffectiveStrategy("/test").getName(),
+                    "/localhost/nfd/strategy/test-strategy-a");
+}
+
+BOOST_AUTO_TEST_CASE(UnsetRoot)
+{
+  ndn::nfd::FibManagementOptions options;
+  options.setName("/");
+
+  Block encodedOptions(options.wireEncode());
+
+  Name commandName("/localhost/nfd/strategy-choice");
+  commandName.append("unset");
+  commandName.append(encodedOptions);
+
+  shared_ptr<Interest> command(make_shared<Interest>(commandName));
+
+  getFace()->onReceiveData +=
+    bind(&StrategyChoiceManagerFixture::validateControlResponse, this, _1,
+         command->getName(), 403, "Cannot unset root prefix strategy");
+
+  getManager().onValidatedStrategyChoiceRequest(command);
+
+  BOOST_REQUIRE(didCallbackFire());
+
+  BOOST_CHECK_EQUAL(m_strategyChoice.findEffectiveStrategy("/test").getName(),
+                    "/localhost/nfd/strategy/test-strategy-a");
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd