Mike Gerwitz

Activist for User Freedom

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<?xml version="1.0"?>
<!--
  Copyright (C) 2018 R-T 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="Table Querying Specs">

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

  <import package="../../../base" />
  <import package="../../../vector/table" />


  <t:create-table name="test-table"
                  desc="Dummy table for query testing">
    <t:table-column name="a"
                    index="0"
                    desc="Column A" />
    <t:table-column name="b"
                    index="1"
                    desc="Column B" />
    <t:table-column name="c"
                    index="2"
                    desc="Column C" />

    <t:table-rows>
      <t:table-row>
        <t:table-value const="1" />
        <t:table-value const="11" />
        <t:table-value const="111" />
      </t:table-row>
      <t:table-row>
        <t:table-value const="1" />
        <t:table-value const="12" />
        <t:table-value const="121" />
      </t:table-row>

      <t:table-row>
        <t:table-value const="2" />
        <t:table-value const="21" />
        <t:table-value const="111" />
      </t:table-row>
    </t:table-rows>
  </t:create-table>


  <t:describe name="_query-first-field_">
    <t:it desc="returns first row of multi-row result">
      <t:given>
        <t:query-first-field table="test-table" field="c">
          <t:when field="a">
            <c:value-of name="#1" />
          </t:when>
        </t:query-first-field>
      </t:given>

      <t:expect>
        <t:match-result eq="111" />
      </t:expect>
    </t:it>


    <t:it desc="returns first row of single-row result">
      <t:given>
        <t:query-first-field table="test-table" field="c">
          <t:when field="a">
            <c:value-of name="#1" />
          </t:when>
          <t:when field="b">
            <c:value-of name="#12" />
          </t:when>
        </t:query-first-field>
      </t:given>

      <t:expect>
        <t:match-result eq="121" />
      </t:expect>
    </t:it>
  </t:describe>



  <t:describe name="_query-field_">
    <t:describe name="with predicates">
      <t:it desc="returns vector of field values">
        <t:given>
          <c:length-of>
            <t:query-field table="test-table" field="c">
              <t:when field="a">
                <c:value-of name="#1" />
              </t:when>
            </t:query-field>
          </c:length-of>
        </t:given>

        <t:expect>
          <t:match-result eq="2" />
        </t:expect>
      </t:it>


      <t:it desc="returns vector of field values even for single result">
        <t:given>
          <c:car>
            <t:query-field table="test-table" field="c">
              <t:when field="a">
                <c:value-of name="#1" />
              </t:when>
              <t:when field="b">
                <c:value-of name="#11" />
              </t:when>
            </t:query-field>
          </c:car>
        </t:given>

        <t:expect>
          <t:match-result eq="111" />
        </t:expect>
      </t:it>
    </t:describe>


    <t:describe name="with no predicates">
      <t:it desc="returns vector of all field values">
        <t:given>
          <c:length-of>
            <t:query-field table="test-table" field="c" />
          </c:length-of>
        </t:given>

        <t:expect>
          <t:match-result eq="3" />
        </t:expect>
      </t:it>
    </t:describe>
  </t:describe>



  <t:describe name="_query-row_">
    <t:describe name="with predicates">
      <t:it desc="returns vector of rows">
        <t:given>
          <c:length-of>
            <t:query-row table="test-table">
              <t:when field="a">
                <c:value-of name="#1" />
              </t:when>
            </t:query-row>
          </c:length-of>
        </t:given>

        <t:expect>
          <t:match-result eq="2" />
        </t:expect>
      </t:it>


      <t:it desc="returns vector of rows even for single result">
        <t:given>
          <c:let>
            <c:values>
              <c:value name="first_row" type="integer" set="vector">
                <c:car>
                  <t:query-row table="test-table">
                    <t:when field="a">
                      <c:value-of name="#1" />
                    </t:when>
                    <t:when field="b">
                      <c:value-of name="#11" />
                    </t:when>
                  </t:query-row>
                </c:car>
              </c:value>
            </c:values>

            <c:sum of="first_row" />
          </c:let>
        </t:given>

        <t:expect>
          <t:match-result eq="123" />
        </t:expect>
      </t:it>
    </t:describe>


    <t:describe name="with no predicates">
      <t:it desc="returns vector of all rows">
        <t:given>
          <c:length-of>
            <t:query-row table="test-table" />
          </c:length-of>
        </t:given>

        <t:expect>
          <t:match-result eq="3" />
        </t:expect>
      </t:it>
    </t:describe>
  </t:describe>
</package>