container: root: test: benchmark/unit: add bitcoin plugin support

- Adds test cases and benchmark for bitcoin's RNG via `dfi`'s `Random`
  * Currently only supports one of bitcoin's RNG's (`FastRandomContext`)

container/src/root/test/benchmark/random.hh

@@ -128,6 +128,30 @@ BENCHMARK_F(RandomLibsodium, generate)(::benchmark::State& state)  // NOLINT
       random.generate();
     }
 }
+
+//
+// Bitcoin
+//
+
+#ifdef __DFI_PLUGIN_BITCOIN__
+//! \brief Bitcoin Random fixture w/ real implementation
+//! \since docker-finance 1.1.0
+struct RandomBitcoin : public ::benchmark::Fixture,
+                       public tests::RandomBitcoin_Impl
+{
+  void SetUp(const ::benchmark::State& state) {}
+  void TearDown(const ::benchmark::State& state) {}
+};
+
+BENCHMARK_F(RandomBitcoin, generate)(::benchmark::State& state)  // NOLINT
+{
+  for (auto st : state)
+    {
+      random.generate();
+    }
+}
+#endif
+
 }  // namespace benchmarks
 }  // namespace tests
 }  // namespace dfi

container/src/root/test/common/random.hh

@@ -90,6 +90,18 @@ struct RandomLibsodium_Impl
   using Random = ::dfi::crypto::libsodium::Random;
   Random random;
 };
+
+#ifdef __DFI_PLUGIN_BITCOIN__
+//! \brief Bitcoin random implementation fixture
+//! \since docker-finance 1.1.0
+struct RandomBitcoin_Impl
+{
+ protected:
+  using Random = ::dfi::crypto::bitcoin::Random;
+  Random random;
+};
+#endif
+
 }  // namespace tests
 }  // namespace dfi
 

container/src/root/test/unit/random.hh

@@ -70,6 +70,11 @@ TEST_F(RandomInterface, generate_uint32_t)
   ASSERT_EQ(random.generate<uint32_t>(), std::numeric_limits<uint32_t>::max());
 }
 
+TEST_F(RandomInterface, generate_uint64_t)
+{
+  ASSERT_EQ(random.generate<uint64_t>(), std::numeric_limits<uint64_t>::max());
+}
+
 TEST_F(RandomInterface, generate_int16_t)
 {
   ASSERT_EQ(random.generate<int16_t>(), std::numeric_limits<int16_t>::max());
@@ -96,9 +101,13 @@ struct RandomFixture : public ::testing::Test, protected t_impl
     auto two = t_impl::random.template generate<t_random>();
     static_assert(std::is_same_v<decltype(two), t_random>);
 
-    // NOTE: t_random limits are implementation-specific
-    ASSERT_NEAR(0, one, std::numeric_limits<t_random>::max());
-    ASSERT_NEAR(0, two, std::numeric_limits<t_random>::max());
+    // TODO(unassigned): gtest implicit conversion of uint64_t with ASSERT_NEAR
+    if constexpr (!std::is_same_v<t_random, uint64_t>)
+      {
+        // NOTE: t_random limits are implementation-specific
+        ASSERT_NEAR(0, one, std::numeric_limits<t_random>::max());
+        ASSERT_NEAR(0, two, std::numeric_limits<t_random>::max());
+      }
 
     // Exceedingly rare (tests the obvious, but is not an accurate entropy test)
     // If fails, re-run tests to confirm
@@ -176,6 +185,28 @@ TEST_F(RandomLibsodium, generate_uint32_t)
   ASSERT_NO_THROW(generate<uint32_t>());
 }
 
+#ifdef __DFI_PLUGIN_BITCOIN__
+//
+// Bitcoin
+//
+
+//! \brief Bitcoin random number fixture
+//! \since docker-finance 1.1.0
+struct RandomBitcoin : public RandomFixture<tests::RandomBitcoin_Impl>
+{
+};
+
+TEST_F(RandomBitcoin, generate_uint32_t)
+{
+  ASSERT_NO_THROW(generate<uint32_t>());
+}
+
+TEST_F(RandomBitcoin, generate_uint64_t)
+{
+  ASSERT_NO_THROW(generate<uint64_t>());
+}
+#endif
+
 }  // namespace unit
 }  // namespace tests
 }  // namespace dfi