<?xml version="1.0"?>
<!--
  Copyright (C) 2014-2023 Ryan Specialty, LLC.

  This file is part of tame-core.

  tame-core 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.

  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
-->
<package xmlns="http://www.lovullo.com/rater"
         xmlns:c="http://www.lovullo.com/calc"
         xmlns:t="http://www.lovullo.com/rater/apply-template"
         desc="Template Generation Package Specification">

  <import package="../../test/spec" />

  <import package="../../base" />
  <import package="../../tplgen" />


  <t:describe name="_for-each-n_">
    <t:describe name="given a positive step">
      <t:it desc="produces body N times exposing current N">
        <t:given>
          <c:sum>
            <t:for-each-n start="2" end="6" step="2">
              <c:const value="@current_n@" desc="Current N" />
            </t:for-each-n>
          </c:sum>
        </t:given>

        <t:expect>
          <!-- 2 + 4 + 6 -->
          <t:match-result eq="12" />
        </t:expect>
      </t:it>
    </t:describe>


    <t:describe name="given a negative step">
      <t:it desc="produces body N times exposing current N">
        <t:given>
          <c:sum>
            <t:for-each-n start="4" end="1" step="-1">
              <c:const value="@current_n@" desc="Current N" />
            </t:for-each-n>
          </c:sum>
        </t:given>

        <t:expect>
          <!-- 4 + 3 + 2 + 1 = 4! (4 factorial) -->
          <t:match-result eq="10" />
        </t:expect>
      </t:it>
    </t:describe>
  </t:describe>
</package>
