hoxsl/test/apply/thrush.xspec

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<?xml version="1.0" encoding="utf-8"?>
<!--
Tests thrushing
Copyright (C) 2014 LoVullo Associates, Inc.
This file is part of hoxsl.
This program 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/>.
-->
<description xmlns="http://www.jenitennison.com/xslt/xspec"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:x="http://www.jenitennison.com/xslt/xspec"
xmlns:f="http://www.lovullo.com/hoxsl/apply"
xmlns:foo="http://www.lovullo.com/_junk"
stylesheet="thrush-test.xsl">
<variable name="doc">
<foo:parent name="foo">
<foo:child />
</foo:parent>
</variable>
<scenario label="f:thrushr function">
<scenario label="with a single item">
<call function="f:thrush">
<param name="list" select="$doc/foo:child" />
</call>
<!-- we should retain context if the value wasn't copied -->
<expect label="returns the value with context in tact"
test="$x:result/parent::foo:parent/@name = 'foo'" />
</scenario>
<!-- first, we need to test that we actually get the return value
of the second function -->
<scenario label="with a second, unary function">
<call function="f:thrush">
<param name="list" select="$doc, foo:give-foo()" />
</call>
<expect label="provides results of second function">
<foo:foo hop="forest" />
</expect>
<scenario label="value passed to second function">
<call function="f:thrush">
<param name="list" select="$doc/foo:child, foo:echo()" />
</call>
<expect label="should retain context"
test="$x:result/parent::foo:parent/@name = 'foo'" />
</scenario>
</scenario>
<!-- continue to test a simple case (unary) so that failures help to
track down a problem, not confound further -->
<scenario label="with multiple unary functions">
<call function="f:thrush">
<param name="list" select="1,
foo:add1(),
foo:add1(),
foo:echo(),
foo:double(),
foo:echo()" />
</call>
<expect label="returns last application having passed previous
results to each"
test="$x:result = 6" />
</scenario>
<scenario label="with (n>1)-ary functions">
<call function="f:thrush">
<param name="list" select="1,
f:apply( foo:add3(), 2, 3 )" />
</call>
<expect label="both previous result and partial arguments are
passed"
test="$x:result = 6" />
</scenario>
<scenario label="with a pipeline of (n>2) functions of varying
arity">
<call function="f:thrush">
<param name="list"
select="5,
foo:add1(),
foo:add( 3 ),
foo:double(),
f:apply( foo:add3(), 2, 1 )" />
</call>
<expect label="arguments are passed, ordered, through the
pipeline to yield a final result"
test="$x:result = 21" />
</scenario>
</scenario>
</description>