tests: filename and test suite name corrections in pib and ping

This commit splits IdentityManagementFixture from IdentityManagementTimeFixture,
and copies its API from NFD repository.

refs #3018

Change-Id: I14dc66dd6eacc83ef2761c0c484173168d98dcef
diff --git a/tests/identity-management-fixture.hpp b/tests/identity-management-fixture.hpp
new file mode 100644
index 0000000..2d84fae
--- /dev/null
+++ b/tests/identity-management-fixture.hpp
@@ -0,0 +1,78 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2016,  Regents of the University of California.
+ *
+ * This file is part of ndn-tools (Named Data Networking Essential Tools).
+ * See AUTHORS.md for complete list of ndn-tools authors and contributors.
+ *
+ * ndn-tools 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.
+ *
+ * ndn-tools 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
+ * ndn-tools, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NDN_TOOLS_TESTS_IDENTITY_MANAGEMENT_FIXTURE_HPP
+#define NDN_TOOLS_TESTS_IDENTITY_MANAGEMENT_FIXTURE_HPP
+
+#include "tests/test-common.hpp"
+#include <ndn-cxx/security/key-chain.hpp>
+#include <vector>
+
+namespace ndn {
+namespace tests {
+
+/** \brief a fixture that cleans up KeyChain identities and certificate files upon destruction
+ */
+class IdentityManagementFixture
+{
+public:
+  IdentityManagementFixture();
+
+  /** \brief deletes created identities and saved certificate files
+   */
+  ~IdentityManagementFixture();
+
+  /** \brief add identity
+   *  \return whether successful
+   */
+  bool
+  addIdentity(const Name& identity, const KeyParams& params = KeyChain::DEFAULT_KEY_PARAMS);
+
+  /** \brief save identity certificate to a file
+   *  \param identity identity name
+   *  \param filename file name, should be writable
+   *  \param wantAdd if true, add new identity when necessary
+   *  \return whether successful
+   */
+  bool
+  saveIdentityCertificate(const Name& identity, const std::string& filename, bool wantAdd = false);
+
+private:
+  std::string m_keyChainPath;
+
+protected:
+  KeyChain m_keyChain;
+
+private:
+  std::vector<Name> m_identities;
+  std::vector<std::string> m_certFiles;
+};
+
+/** \brief convenience base class for inheriting from both UnitTestTimeFixture
+ *         and IdentityManagementFixture
+ */
+class IdentityManagementTimeFixture : public UnitTestTimeFixture
+                                    , public IdentityManagementFixture
+{
+};
+
+} // namespace tests
+} // namespace ndn
+
+#endif // NDN_TOOLS_TESTS_IDENTITY_MANAGEMENT_FIXTURE_HPP