Custom unit and data tests enabled

src/include/units/data/prefixes.h

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+// The MIT License (MIT)
+//
+// Copyright (c) 2018 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.
+
+#pragma once
+
+#include <units/prefix.h>
+#include <ratio>
+
+namespace units::data {
+
+struct prefix : prefix_type {};
+
+struct kibi : units::prefix<kibi, prefix, "Ki", ratio<                1'024>> {};
+struct mebi : units::prefix<mebi, prefix, "Mi", ratio<            1'048'576>> {};
+struct gibi : units::prefix<gibi, prefix, "Gi", ratio<        1'073'741'824>> {};
+struct tebi : units::prefix<tebi, prefix, "Ti", ratio<    1'099'511'627'776>> {};
+struct pebi : units::prefix<pebi, prefix, "Pi", ratio<1'125'899'906'842'624>> {};
+
+}  // namespace units::si