refactor: the rest of the systems refactored for V2

test/unit_test/static/hep_test.cpp

@@ -0,0 +1,47 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2021 Mateusz Pusz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include <units/hep/hep.h>
+#include <units/isq/mechanics.h>
+#include <units/isq/space_and_time.h>
+#include <units/si/si.h>
+
+template<class T>
+  requires units::is_scalar<T>
+inline constexpr bool units::is_vector<T> = true;
+
+namespace {
+
+using namespace units;
+using namespace units::hep::unit_symbols;
+using namespace units::si::unit_symbols;
+
+// mass
+static_assert(isq::mass[eV / c2](1'000) == isq::mass[keV / c2](1));
+
+// momentum
+static_assert(isq::momentum[eV / c](1'000'000) == isq::momentum[MeV / c](1));
+
+// area
+static_assert(isq::area[b](1e28) == isq::area[m2](1.));
+
+}  // namespace