!! Version 2
# Force the test runner to ensure the extension is loaded
!! functionhooks
af_reduce
!! endfunctionhooks

# This file tests the #af_reduce parser function

!! test
Test no callable
!! wikitext
{{#af_reduce: {{#af_list: a | b | c }} | c | i }}
!! html
!! end

!! test
Test concatenation
!! wikitext
{{#af_reduce: {{#af_list: a | b | c }} | c | i | {{{c}}}{{{i}}} }}
!! html
<p>abc
</p>
!! end

!! test
Building an equation
!! wikitext
{{#af_reduce: {{#af_list: 2 | 3 | 5 | 7 | 11 }} | c | i | {{{c}}} + {{{i}}} | 0 }}
!! html
<p>0 + 2 + 3 + 5 + 7 + 11
</p>
!! end

!! test
Inverse concatenation
!! wikitext
{{#af_reduce: {{#af_list: a | b | c | d | e }} | c | i | {{{i}}}{{{c}}} }}
!! html
<p>edcba
</p>
!! end

!! test
Test too many arguments
!! wikitext
{{#af_reduce: {{#af_list: a | b | c }} | c | i | 0 | 0 | foo }}
!! html
<p><span class="error">ArrayFunctions (<b>#af_reduce</b>): Expected at most <b>5</b> positional parameters, <b>6</b> given.</span>
</p>
!! end

!! test
Test too few arguments
!! wikitext
{{#af_reduce: {{#af_list: a | b | c }} | c }}
!! html
<p><span class="error">ArrayFunctions (<b>#af_reduce</b>): Expected at least <b>3</b> positional parameters, <b>2</b> given.</span>
</p>
!! end