Add unit test for dynafed CalculateRoot methods

Author: stevenroose

src/Makefile.test.include

@@ -131,6 +131,7 @@ BITCOIN_TESTS =\
   test/validation_block_tests.cpp \
   test/versionbits_tests.cpp \
   test/pegin_spent_tests.cpp \
+  test/dynafed_tests.cpp \
   test/blind_tests.cpp
 # ELEMENTS IN THE END
 

src/test/dynafed_tests.cpp

@@ -0,0 +1,46 @@
+// Copyright (c) 2017-2017 Blockstream
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <test/test_bitcoin.h>
+#include <string>
+#include <boost/test/unit_test.hpp>
+#include <primitives/block.h>
+#include <script/script.h>
+#include <serialize.h>
+
+
+BOOST_FIXTURE_TEST_SUITE(dynafed_tests, BasicTestingSetup)
+
+// Ensure the paam roots doesn't change unexpectedly.
+BOOST_AUTO_TEST_CASE(dynafed_params_root)
+{
+    CScript signblockscript(opcodetype(1));
+    uint32_t signblock_wl(2);
+    CScript fp_program(opcodetype(3));
+    CScript fp_script(opcodetype(4));
+    std::vector<std::vector<unsigned char>> ext{ {5, 6}, {7} };
+
+    DynaFedParamEntry compact_entry = DynaFedParamEntry(signblockscript, signblock_wl);
+    BOOST_CHECK_EQUAL(
+        compact_entry.CalculateRoot().GetHex(),
+        "dff5f3793abc06a6d75e80fe3cfd47406f732fa4ec9305960ae2a229222a1ad5"
+    );
+
+    DynaFedParamEntry full_entry =
+        DynaFedParamEntry(signblockscript, signblock_wl, fp_program, fp_script, ext);
+    BOOST_CHECK_EQUAL(
+        full_entry.CalculateRoot().GetHex(),
+        "175be2087ba7cc0e33348bef493bd3e34f31f64bf9226e5881ab310dafa432ff"
+    );
+
+    DynaFedParams params = DynaFedParams(compact_entry, full_entry);
+    BOOST_CHECK_EQUAL(
+        params.CalculateRoot().GetHex(),
+        "e56cf79487952dfa85fe6a85829600adc19714ba6ab1157fdff02b25ae60cee2"
+    );
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+