table: eliminate Selectors from CS tests

refs #4805

Change-Id: I6ae48fc40e62aeeb41cde7530d6bfa6b6d5ef000
diff --git a/tests/daemon/table/cs-fixture.hpp b/tests/daemon/table/cs-fixture.hpp
new file mode 100644
index 0000000..15bf89e
--- /dev/null
+++ b/tests/daemon/table/cs-fixture.hpp
@@ -0,0 +1,113 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2019,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NFD_TESTS_DAEMON_TABLE_CS_FIXTURE_HPP
+#define NFD_TESTS_DAEMON_TABLE_CS_FIXTURE_HPP
+
+#include "table/cs.hpp"
+
+#include "tests/test-common.hpp"
+#include "tests/daemon/global-io-fixture.hpp"
+
+#include <cstring>
+
+namespace nfd {
+namespace cs {
+namespace tests {
+
+using namespace nfd::tests;
+
+#define CHECK_CS_FIND(expected) find([&] (uint32_t found) { BOOST_CHECK_EQUAL(expected, found); });
+
+class CsFixture : public GlobalIoTimeFixture
+{
+protected:
+  Name
+  insert(uint32_t id, const Name& name, const std::function<void(Data&)>& modifyData = nullptr,
+         bool isUnsolicited = false)
+  {
+    auto data = makeData(name);
+    data->setContent(reinterpret_cast<const uint8_t*>(&id), sizeof(id));
+
+    if (modifyData != nullptr) {
+      modifyData(*data);
+    }
+
+    data->wireEncode();
+    cs.insert(*data, isUnsolicited);
+
+    return data->getFullName();
+  }
+
+  Interest&
+  startInterest(const Name& name)
+  {
+    interest = make_shared<Interest>(name);
+    interest->setCanBePrefix(false);
+    return *interest;
+  }
+
+  void
+  find(const std::function<void(uint32_t)>& check)
+  {
+    bool hasResult = false;
+    cs.find(*interest,
+            [&] (const Interest& interest, const Data& data) {
+              hasResult = true;
+              const Block& content = data.getContent();
+              uint32_t found = 0;
+              std::memcpy(&found, content.value(), sizeof(found));
+              check(found);
+            },
+            bind([&] {
+              hasResult = true;
+              check(0);
+            }));
+
+    // current Cs::find implementation is synchronous
+    BOOST_CHECK(hasResult);
+  }
+
+  size_t
+  erase(const Name& prefix, size_t limit)
+  {
+    optional<size_t> nErased;
+    cs.erase(prefix, limit, [&] (size_t nErased1) { nErased = nErased1; });
+
+    // current Cs::erase implementation is synchronous
+    // if callback was not invoked, bad_optional_access would occur
+    return *nErased;
+  }
+
+protected:
+  Cs cs;
+  shared_ptr<Interest> interest;
+};
+
+} // namespace tests
+} // namespace cs
+} // namespace nfd
+
+#endif // NFD_TESTS_DAEMON_TABLE_CS_FIXTURE_HPP