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t/test_pl.pod: document the new setup_multiple_progs() PREAMBLE #23869

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Merged
merged 1 commit into from
Oct 22, 2025
+10 −2
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t/test_pl.pod: document the new setup_multiple_progs() PREAMBLE #23869

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12 changes: 10 additions & 2 deletions t/test_pl.pod
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Original file line number Diff line number Diff line change
Expand Up @@ -318,7 +318,7 @@ Scan the given files for tests to be run by run_multiple_progs().
This is currently only used by F<t/lib/common.pl> which itself is used
by most tests that use run_multiple_progs() on other files.

Test files parsed by setup_multiple_progs() ignore any lines until a
Test files parsed by setup_multiple_progs() ignore most lines until a
C<__END__> line is found.

So in general, just use F<t/lib/common.pl>, see F<t/lib/croak.t> and
Expand Down Expand Up @@ -774,10 +774,18 @@ C<PERL_RUNPERL_DEBUG>
OPTIONS fatal
Time to die at - line 1.

Test files parsed by setup_multiple_progs() ignore any lines until a
Test files parsed by setup_multiple_progs() ignore most lines until a
C<__END__> line is found. This includes any test file based on
F<t/lib/common.pl>.

The lines that aren't ignored here by setup_multiple_progs() have the
form:

/^#\s+PREAMBLE\s+(.*)$/

where each matching line (excluding the C<# PREAMBLE>) is prepended to
the code for each test case.

Tests are separated by lines containing exactly eight C<#>.

A test (both code and expected result) can contain text matching
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