Merge remote-tracking branch 'schmonz/cvs'

4 files changed, 625 insertions, 155 deletions

diff --git a/.gitignore b/.gitignore
index fe1c3d441..da2f4eb46 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,4 @@ po/underlays/directives/ikiwiki/directive/*.mdwn
 po/underlays_copy_stamp
 underlays/locale
 /t/tmp/
+doc/bugs/Pages_with_non-ascii_characters_like_*
diff --git a/IkiWiki/Plugin/cvs.pm b/IkiWiki/Plugin/cvs.pm
index 71566d212..0a6cbfaf6 100644
--- a/IkiWiki/Plugin/cvs.pm
+++ b/IkiWiki/Plugin/cvs.pm
@@ -35,10 +35,14 @@ use IkiWiki;
 
 use File::chdir;
 
+
+# GENERAL PLUGIN API CALLS
+
 sub import {
-	hook(type => "genwrapper", id => "cvs", call => \&genwrapper);
 	hook(type => "checkconfig", id => "cvs", call => \&checkconfig);
 	hook(type => "getsetup", id => "cvs", call => \&getsetup);
+	hook(type => "genwrapper", id => "cvs", call => \&genwrapper);
+
 	hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
 	hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
 	hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
@@ -52,17 +56,6 @@ sub import {
 	hook(type => "rcs", id => "rcs_getmtime", call => \&rcs_getmtime);
 }
 
-sub genwrapper () {
-	return <<EOF;
-	{
-		int j;
-		for (j = 1; j < argc; j++)
-			if (strstr(argv[j], "New directory") != NULL)
-				exit(0);
-	}
-EOF
-}
-
 sub checkconfig () {
 	if (! defined $config{cvspath}) {
 		$config{cvspath}="ikiwiki";
@@ -132,39 +125,22 @@ sub getsetup () {
 		},
 }
 
-sub cvs_info ($$) {
-	my $field=shift;
-	my $file=shift;
-
-	local $CWD = $config{srcdir};
-
-	my $info=`cvs status $file`;
-	my ($ret)=$info=~/^\s*$field:\s*(\S+)/m;
-	return $ret;
+sub genwrapper () {
+	return <<EOF;
+	{
+		int j;
+		for (j = 1; j < argc; j++)
+			if (strstr(argv[j], "New directory") != NULL)
+				exit(0);
+	}
+EOF
 }
 
-sub cvs_runcvs(@) {
-	my @cmd = @_;
-	unshift @cmd, 'cvs', '-Q';
-
-	local $CWD = $config{srcdir};
-
-	open(my $savedout, ">&STDOUT");
-	open(STDOUT, ">", "/dev/null");
-	my $ret = system(@cmd);
-	open(STDOUT, ">&", $savedout);
 
-	return ($ret == 0) ? 1 : 0;
-}
-
-sub cvs_is_controlling {
-	my $dir=shift;
-	$dir=$config{srcdir} unless defined($dir);
-	return (-d "$dir/CVS") ? 1 : 0;
-}
+# VCS PLUGIN API CALLS
 
 sub rcs_update () {
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 	cvs_runcvs('update', '-dP');
 }
 
@@ -175,7 +151,7 @@ sub rcs_prepedit ($) {
 	# The file is relative to the srcdir.
 	my $file=shift;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	# For cvs, return the revision of the file when
 	# editing begins.
@@ -183,31 +159,13 @@ sub rcs_prepedit ($) {
 	return defined $rev ? $rev : "";
 }
 
-sub commitmessage (@) {
-	my %params=@_;
-	
-	if (defined $params{session}) {
-		if (defined $params{session}->param("name")) {
-			return "web commit by ".
-				$params{session}->param("name").
-				(length $params{message} ? ": $params{message}" : "");
-		}
-		elsif (defined $params{session}->remote_addr()) {
-			return "web commit from ".
-				$params{session}->remote_addr().
-				(length $params{message} ? ": $params{message}" : "");
-		}
-	}
-	return $params{message};
-}
-
 sub rcs_commit (@) {
 	# Tries to commit the page; returns undef on _success_ and
 	# a version of the page with the rcs's conflict markers on failure.
 	# The file is relative to the srcdir.
 	my %params=@_;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	# Check to see if the page has been changed by someone
 	# else since rcs_prepedit was called.
@@ -250,9 +208,6 @@ sub rcs_add ($) {
 	my $parent=IkiWiki::dirname($file);
 	my @files_to_add = ($file);
 
-	eval q{use File::MimeInfo};
-	error($@) if $@;
-
 	until ((length($parent) == 0) || cvs_is_controlling("$config{srcdir}/$parent")){
 		push @files_to_add, $parent;
 		$parent = IkiWiki::dirname($parent);
@@ -261,15 +216,8 @@ sub rcs_add ($) {
 	while ($file = pop @files_to_add) {
 		if (@files_to_add == 0) {
 			# file
-			my $filemime = File::MimeInfo::default($file);
-			if (defined($filemime) && $filemime eq 'text/plain') {
-				cvs_runcvs('add', $file) ||
-					warn("cvs add $file failed\n");
-			}
-			else {
-				cvs_runcvs('add', '-kb', $file) ||
-					warn("cvs add binary $file failed\n");
-			}
+			cvs_runcvs('add', cvs_keyword_subst_args($file)) ||
+				warn("cvs add $file failed\n");
 		}
 		else {
 			# directory
@@ -283,7 +231,7 @@ sub rcs_remove ($) {
 	# filename is relative to the root of the srcdir
 	my $file=shift;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	cvs_runcvs('rm', '-f', $file) ||
 		warn("cvs rm $file failed\n");
@@ -293,7 +241,7 @@ sub rcs_rename ($$) {
 	# filenames relative to the root of the srcdir
 	my ($src, $dest)=@_;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	local $CWD = $config{srcdir};
 
@@ -309,7 +257,7 @@ sub rcs_recentchanges ($) {
 	my $num = shift;
 	my @ret;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	eval q{use Date::Parse};
 	error($@) if $@;
@@ -493,4 +441,74 @@ sub rcs_getmtime ($) {
 	error "rcs_getmtime is not implemented for cvs\n"; # TODO
 }
 
+
+# INTERNAL SUPPORT ROUTINES
+
+sub commitmessage (@) {
+	my %params=@_;
+
+	if (defined $params{session}) {
+		if (defined $params{session}->param("name")) {
+			return "web commit by ".
+				$params{session}->param("name").
+				(length $params{message} ? ": $params{message}" : "");
+		}
+		elsif (defined $params{session}->remote_addr()) {
+			return "web commit from ".
+				$params{session}->remote_addr().
+				(length $params{message} ? ": $params{message}" : "");
+		}
+	}
+	return $params{message};
+}
+
+sub cvs_info ($$) {
+	my $field=shift;
+	my $file=shift;
+
+	local $CWD = $config{srcdir};
+
+	my $info=`cvs status $file`;
+	my ($ret)=$info=~/^\s*$field:\s*(\S+)/m;
+	return $ret;
+}
+
+sub cvs_is_controlling {
+	my $dir=shift;
+	$dir=$config{srcdir} unless defined($dir);
+	return (-d "$dir/CVS") ? 1 : 0;
+}
+
+sub cvs_keyword_subst_args ($) {
+	my $file = shift;
+
+	local $CWD = $config{srcdir};
+
+	eval q{use File::MimeInfo};
+	error($@) if $@;
+	my $filemime = File::MimeInfo::default($file);
+	# if (-T $file) {
+
+	if (defined($filemime) && $filemime eq 'text/plain') {
+		return ($file);
+	}
+	else {
+		return ('-kb', $file);
+	}
+}
+
+sub cvs_runcvs(@) {
+	my @cmd = @_;
+	unshift @cmd, 'cvs', '-Q';
+
+	local $CWD = $config{srcdir};
+
+	open(my $savedout, ">&STDOUT");
+	open(STDOUT, ">", "/dev/null");
+	my $ret = system(@cmd);
+	open(STDOUT, ">&", $savedout);
+
+	return ($ret == 0) ? 1 : 0;
+}
+
 1
diff --git a/TODO.cvs b/TODO.cvs
new file mode 100644
index 000000000..256268558
--- /dev/null
+++ b/TODO.cvs
@@ -0,0 +1,8 @@
+* merge old tests into new test subs
+
+* remove code comments when tests are explanatory
+
+* do a writeup for doc/rcs/details.mdwn
+* remove outdated stuff from doc/rcs/cvs.mdwn
+
+* more copyright years?
diff --git a/t/cvs.t b/t/cvs.t
index 5ed377ed5..1c20d7741 100755
--- a/t/cvs.t
+++ b/t/cvs.t
@@ -1,88 +1,531 @@
 #!/usr/bin/perl
 use warnings;
 use strict;
-my $dir;
-BEGIN {
-	$dir="/tmp/ikiwiki-test-cvs.$$";
-	my $cvs=`which cvs`;
-	chomp $cvs;
-	my $cvsps=`which cvsps`;
-	chomp $cvsps;
-	if (! -x $cvs || ! -x $cvsps) {
-		eval q{
-			use Test::More skip_all => "cvs or cvsps not available"
-		}
-	}
-	if (! mkdir($dir)) {
-		die $@;
+use Test::More; my $total_tests = 40;
+use IkiWiki;
+
+my $default_test_methods = '^test_*';
+my @required_programs = qw(
+	cvs
+	cvsps
+);
+my @required_modules = qw(
+	File::chdir
+	File::MimeInfo
+	Date::Parse
+	File::Temp
+	File::ReadBackwards
+);
+my $dir = "/tmp/ikiwiki-test-cvs.$$";
+
+# TESTS FOR GENERAL META-BEHAVIOR
+
+sub test_web_comments {
+	# how much of the web-edit workflow are we actually testing?
+	# because we want to test comments:
+	# - when the first comment for page.mdwn is added, and page/ is
+	#   created to hold the comment, page/ isn't added to CVS control,
+	#   so the comment isn't either
+	# - side effect for moderated comments: after approval they
+	#   show up normally AND are still pending, too
+	# - comments.pm treats rcs_commit_staged() as returning conflicts?
+}
+
+sub test_chdir_magic {
+	# cvs.pm operations are always occurring inside $config{srcdir}
+	# other ikiwiki operations are occurring wherever, and are unaffected
+	# when are we bothering with "local $CWD" and when aren't we?
+}
+
+sub test_cvs_info {
+	# inspect "Repository revision" (used in code)
+	# inspect "Sticky Options" (used in tests to verify existence of "-kb")
+}
+
+sub test_cvs_run_cvs {
+	# extract the stdout-redirect thing
+	# - prove that it silences stdout
+	# - prove that stderr comes through just fine
+	# prove that when cvs exits nonzero (fail), function exits false
+	# prove that when cvs exits zero (success), function exits true
+	# always pass -f, just in case
+	# steal from git.pm: safe_git(), run_or_{die,cry,non}
+	# - open() instead of system()
+	# always call cvs_run_cvs(), don't ever run 'cvs' directly
+}
+
+sub test_cvs_run_cvsps {
+	# parameterize command like run_cvs()
+	# expose config vars for e.g. "--cvs-direct -z 30"
+	# always pass -x (unless proven otherwise)
+	# always pass -b HEAD (configurable like gitmaster_branch?)
+}
+
+sub test_cvs_parse_cvsps {
+	# extract method from rcs_recentchanges
+	# document expected changeset format
+	# document expected changeset delimiter
+	# try: cvsps -q -x -p && ls | sort -rn | head -100
+	# - benchmark against current impl (that uses File::ReadBackwards)
+}
+
+sub test_cvs_parse_log_accum {
+	# add new, preferred method for rcs_recentchanges to use
+	# teach log_accum to record commits (into transient?)
+	# script cvsps to bootstrap (or replace?) commit history
+	# teach ikiwiki-makerepo to set up log_accum and commit_prep
+	# why are NetBSD commit mails unreliable?
+	# - is it working for CVS commits and failing for web commits?
+}
+
+sub test_cvs_is_controlling {
+	# with no args:
+	# - if srcdir is in CVS, return true
+	# - else, return false
+	# with a dir arg:
+	# - if dir is in CVS, return true
+	# - else, return false
+	# with a file arg:
+	# - is there anything that wants the answer? if so, answer
+	# - else, die
+}
+
+
+# TESTS FOR GENERAL PLUGIN API CALLS
+
+sub test_checkconfig {
+	# undef cvspath, expect "ikiwiki"
+	# define cvspath normally, get it back
+	# define cvspath in a subdir, get it back?
+	# define cvspath with extra slashes, get sanitized version back
+	# - yoink test_extra_path_slashes
+	# undef cvs_wrapper, expect $config{wrappers} same size as before
+
+	my $initial_cvspath = $config{cvspath};
+	$config{cvspath} = "/ikiwiki//";
+	IkiWiki::checkconfig();
+	is(
+		$config{cvspath},
+		$initial_cvspath,
+		q{rcs_recentchanges assumes checkconfig has sanitized cvspath},
+	);
+}
+
+sub test_getsetup {
+	# anything worth testing?
+}
+
+sub test_genwrapper {
+	# testable directly? affects rcs_add, but are we exercising this?
+}
+
+
+# TESTS FOR VCS PLUGIN API CALLS
+
+sub test_rcs_update {
+	# can it assume we're under CVS control? or must it check?
+	# anything else worth testing?
+}
+
+sub test_rcs_prepedit {
+	# can it assume we're under CVS control? or must it check?
+	# for existing file, returns latest revision in repo
+	# - what's this used for? should it return latest revision in checkout?
+	# for new file, returns empty string
+}
+
+sub test_rcs_commit {
+	# can it assume we're under CVS control? or must it check?
+	# if someone else changed the page since rcs_prepedit was called:
+	# - try to merge into our working copy
+	# - if merge succeeds, proceed to commit
+	# - else, return page content with the conflict markers in it
+	# commit:
+	# - if success, return undef
+	# - else, revert + return content with the conflict markers in it
+	# git.pm receives "session" param -- useful here?
+	# web commits start with "web commit {by,from} "
+	# seeing File::chdir errors on commit?
+}
+
+sub test_rcs_commit_staged {
+	# if commit succeeds, return undef
+	# else, warn and return error message (really? or just non-undef?)
+}
+
+sub test_rcs_add {
+	my $message = "add a top-level ASCII (non-UTF-8) page via VCS API";
+	writefile('test0.mdwn', $config{srcdir}, "* some plain ASCII text");
+	IkiWiki::rcs_add("test0.mdwn");
+	IkiWiki::rcs_commit(
+		file => "test0.mdwn",
+		message => $message,
+		token => "moo",
+	);
+	is_newly_added("test0.mdwn");
+	is_in_keyword_substitution_mode("test0.mdwn", undef);
+	my @changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 1);
+	is_most_recent_change(\@changes, "test0", $message);
+
+	$message = "add a top-level dir via VCS API";
+	my $dir1 = "test3";
+	can_mkdir($dir1);
+	IkiWiki::rcs_add($dir1);
+	# XXX test that the wrapper hangs here without our genwrapper()
+	# XXX test that the wrapper doesn't hang here with it
+	@changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 1);	# despite the dir add
+	IkiWiki::rcs_commit(
+		file => $dir1,
+		message => $message,
+		token => "oom",
+	);
+	@changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 1);	# dirs aren't tracked
+
+	$message = "add a non-ASCII (UTF-8) text file in an un-added dir";
+	my $dir2 = "test4/test5";
+	can_mkdir($_) for ('test4', $dir2);
+	writefile("$dir2/test1.mdwn", $config{srcdir},readfile("t/test1.mdwn"));
+	IkiWiki::rcs_add("$dir2/test1.mdwn");
+	IkiWiki::rcs_commit(
+		file => "$dir2/test1.mdwn",
+		message => $message,
+		token => "omo",
+	);
+	is_newly_added("$dir2/test1.mdwn");
+	is_in_keyword_substitution_mode("$dir2/test1.mdwn", undef);
+	@changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 2);
+	is_most_recent_change(\@changes, "$dir2/test1", $message);
+
+	$message = "add a binary file in an un-added dir, and commit_staged";
+	my $dir3 = "test6";
+	my $file = "$dir3/test7.ico";
+	can_mkdir($dir3);
+	my $bindata_in = readfile("doc/favicon.ico", 1);
+	my $bindata_out = sub { readfile($config{srcdir} . "/$file", 1) };
+	writefile($file, $config{srcdir}, $bindata_in, 1);
+	is(&$bindata_out(), $bindata_in, q{binary files match before commit});
+	IkiWiki::rcs_add($file);
+	IkiWiki::rcs_commit_staged(message => $message);
+	is_newly_added($file);
+	is_in_keyword_substitution_mode($file, q{-kb});
+	is(&$bindata_out(), $bindata_in, q{binary files match after commit});
+	@changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 3);
+	is_most_recent_change(\@changes, $file, $message);
+	ok(
+		unlink($config{srcdir} . "/$file"),
+		q{can remove file in order to re-fetch it from repo},
+	);
+	ok(! -e $config{srcdir} . "/$file", q{really removed file});
+	IkiWiki::rcs_update();
+	is(&$bindata_out(), $bindata_in, q{binary files match after re-fetch});
+
+	$message = "add a UTF-8 and a binary file in different dirs";
+	my $file1 = "test8/test9.mdwn";
+	my $file2 = "test10/test11.ico";
+	can_mkdir(qw(test8 test10));
+	writefile($file1, $config{srcdir}, readfile('t/test2.mdwn'));
+	writefile($file2, $config{srcdir}, $bindata_in, 1);
+	IkiWiki::rcs_add($_) for ($file1, $file2);
+	IkiWiki::rcs_commit_staged(message => $message);
+	is_newly_added($_) for ($file1, $file2);
+	is_in_keyword_substitution_mode($file1, undef);
+	is_in_keyword_substitution_mode($file2, '-kb');
+	@changes = IkiWiki::rcs_recentchanges(3);
+	is_total_number_of_changes(\@changes, 3);
+	@changes = IkiWiki::rcs_recentchanges(4);
+	is_total_number_of_changes(\@changes, 4);
+	# XXX test for both files in the commit, and no other files
+	is_most_recent_change(\@changes, $file2, $message);
+
+	# prevent web edits from attempting to create .../CVS/foo.mdwn
+	# on case-insensitive filesystems, also prevent .../cvs/foo.mdwn
+	# unless your "CVS" is something else and we've made it configurable
+
+	# can it assume we're under CVS control? or must it check?
+
+	# extract method: filetype-guessing
+	# add a binary file, remove it, add a text file by same name, no -kb?
+	# add a text file, remove it, add a binary file by same name, -kb?
+}
+
+sub test_rcs_remove {
+	# can it assume we're under CVS control? or must it check?
+	# remove a top-level file
+	# - rcs_commit
+	# - inspect recentchanges: one new change, file removed
+	# remove two files (in different dirs)
+	# - rcs_commit_staged
+	# - inspect recentchanges: one new change, both files removed
+}
+
+sub test_rcs_rename {
+	# can it assume we're under CVS control? or must it check?
+	# rename a file in the same dir
+	# - rcs_commit_staged
+	# - inspect recentchanges: one new change, one file removed, one added
+	# rename a file into a different dir
+	# - rcs_commit_staged
+	# - inspect recentchanges: one new change, one file removed, one added
+	# rename a file into a not-yet-existing dir
+	# - rcs_commit_staged
+	# - inspect recentchanges: one new change, one file removed, one added
+	# is it safe to use "mv"? what if $dest is somehow outside the wiki?
+}
+
+sub test_rcs_recentchanges {
+	my $message = "Add a page via CVS directly";
+	writefile('test2.mdwn', $config{srcdir}, readfile("t/test2.mdwn"));
+	system "cd $config{srcdir}"
+		. " && cvs add test2.mdwn >/dev/null 2>&1";
+	system "cd $config{srcdir}"
+		. " && cvs commit -m \"$message\" test2.mdwn >/dev/null";
+
+	my @changes = IkiWiki::rcs_recentchanges(3);
+	is(
+		$#changes,
+		0,
+		q{total commits: 1},
+	);
+	is(
+		$changes[0]{message}[0]{"line"},
+		$message,
+		q{most recent commit's first message line matches},
+	);
+	is(
+		$changes[0]{pages}[0]{"page"},
+		"test2",
+		q{most recent commit's first pagename matches},
+	);
+
+	# CVS commits run ikiwiki once for every committed file (!)
+	# - commit_prep alone should fix this
+	# CVS multi-dir commits show only the first dir in recentchanges
+	# - commit_prep might also fix this?
+	# CVS post-commit hook is amped off to avoid locking against itself
+	# - commit_prep probably doesn't fix this... but maybe?
+	# can it assume we're under CVS control? or must it check?
+	# don't worry whether we're called with a number (we always are)
+	# other rcs tests already inspect much of the returned structure
+	# CVS commits say "cvs" and get the right committer
+	# web commits say "web" and get the right committer
+	# - and don't start with "web commit {by,from} "
+	# "nickname" -- can we ever meaningfully set this?
+
+	# prefer log_accum, then cvsps, else die
+	# run the high-level recentchanges tests 2x (once for each method)
+	# - including in other test subs that check recentchanges?
+}
+
+sub test_rcs_diff {
+	# can it assume we're under CVS control? or must it check?
+	# in list context, return all lines (with \n), up to $maxlines if set
+	# in scalar context, return the whole diff, up to $maxlines if set
+}
+
+sub test_rcs_getctime {
+	# can it assume we're under CVS control? or must it check?
+	# given a file, find its creation time, else return 0
+	# first implement in the obvious way
+	# then cache
+}
+
+sub test_rcs_getmtime {
+	# can it assume we're under CVS control? or must it check?
+	# given a file, find its modification time, else return 0
+	# first implement in the obvious way
+	# then cache
+}
+
+sub test_rcs_receive {
+	pass(q{rcs_receive doesn't make sense for CVS});
+}
+
+sub test_rcs_preprevert {
+	# can it assume we're under CVS control? or must it check?
+	# given a patchset number, return structure describing what'd happen:
+	# - see doc/plugins/write.mdwn:rcs_receive()
+	# don't forget about attachments
+}
+
+sub test_rcs_revert {
+	# can it assume we're under CVS control? or must it check?
+	# given a patchset number, stage the revert for rcs_commit_staged()
+	# if commit succeeds, return undef
+	# else, warn and return error message (really? or just non-undef?)
+}
+
+sub main {
+	my $test_methods = defined $ENV{TEST_METHOD} 
+			 ? $ENV{TEST_METHOD}
+			 : $default_test_methods;
+
+	_startup($test_methods eq $default_test_methods);
+	_runtests(_get_matching_test_subs($test_methods));
+	_shutdown($test_methods eq $default_test_methods);
+}
+
+main();
+
+
+# INTERNAL SUPPORT ROUTINES
+
+sub _plan_for_test_more {
+	my $can_plan = shift;
+
+	foreach my $program (@required_programs) {
+		my $program_path = `which $program`;
+		chomp $program_path;
+		return plan(skip_all => "$program not available")
+			unless -x $program_path;
 	}
-	foreach my $module ('File::ReadBackwards', 'File::MimeInfo') {
+
+	foreach my $module (@required_modules) {
 		eval qq{use $module};
-		if ($@) {
-			eval qq{
-				use Test::More skip_all => "$module not available"
-			}
-		}
+		return plan(skip_all => "$module not available")
+			if $@;
 	}
+
+	return plan(skip_all => "can't create $dir: $!")
+		unless mkdir($dir);
+	return plan(skip_all => "can't remove $dir: $!")
+		unless rmdir($dir);
+
+	return unless $can_plan;
+
+	return plan(tests => $total_tests);
+}
+
+# http://stackoverflow.com/questions/607282/whats-the-best-way-to-discover-all-subroutines-a-perl-module-has
+
+use B qw/svref_2object/;
+
+sub in_package {
+	my ($coderef, $package) = @_;
+	my $cv = svref_2object($coderef);
+	return if not $cv->isa('B::CV') or $cv->GV->isa('B::SPECIAL');
+	return $cv->GV->STASH->NAME eq $package;
+}
+
+sub list_module {
+	my $module = shift;
+	no strict 'refs';
+	return grep {
+		defined &{"$module\::$_"} and in_package(\&{*$_}, $module)
+	} keys %{"$module\::"};
 }
-use Test::More tests => 12;
-
-BEGIN { use_ok("IkiWiki"); }
-
-%config=IkiWiki::defaultconfig();
-$config{rcs} = "cvs";
-$config{srcdir} = "$dir/src";
-$config{cvsrepo} = "$dir/repo";
-$config{cvspath} = "ikiwiki";
-IkiWiki::loadplugins();
-IkiWiki::checkconfig();
-
-my $cvsrepo = "$dir/repo";
-
-system "cvs -d $cvsrepo init >/dev/null";
-system "mkdir $dir/ikiwiki >/dev/null";
-system "cd $dir/ikiwiki && cvs -d $cvsrepo import -m import ikiwiki VENDOR RELEASE >/dev/null";
-system "rm -rf $dir/ikiwiki >/dev/null";
-system "cvs -d $cvsrepo co -d $config{srcdir} ikiwiki >/dev/null";
-
-# Web commit
-my $test1 = readfile("t/test1.mdwn");
-writefile('test1.mdwn', $config{srcdir}, $test1);
-IkiWiki::rcs_add("test1.mdwn");
-IkiWiki::rcs_commit(
-	files => "test1.mdwn",
-	message => "Added the first page",
-	token => "moo"
-);
 
-my @changes;
-@changes = IkiWiki::rcs_recentchanges(3);
-
-is($#changes, 0);
-is($changes[0]{message}[0]{"line"}, "Added the first page");
-is($changes[0]{pages}[0]{"page"}, "test1");
-
-# Manual commit
-my $message = "Added the second page";
-
-my $test2 = readfile("t/test2.mdwn");
-writefile('test2.mdwn', $config{srcdir}, $test2);
-system "cd $config{srcdir} && cvs add test2.mdwn >/dev/null 2>&1";
-system "cd $config{srcdir} && cvs commit -m \"$message\" test2.mdwn >/dev/null";
-
-@changes = IkiWiki::rcs_recentchanges(3);
-is($#changes, 1);
-is($changes[0]{message}[0]{"line"}, $message);
-is($changes[0]{pages}[0]{"page"}, "test2");
-is($changes[1]{pages}[0]{"page"}, "test1");
-
-# extra slashes in the path shouldn't break things
-$config{cvspath} = "/ikiwiki//";
-IkiWiki::checkconfig();
-@changes = IkiWiki::rcs_recentchanges(3);
-is($#changes, 1);
-is($changes[0]{message}[0]{"line"}, $message);
-is($changes[0]{pages}[0]{"page"}, "test2");
-is($changes[1]{pages}[0]{"page"}, "test1");
-
-system "rm -rf $dir";
+
+# support for xUnit-style testing, a la Test::Class
+
+sub _startup {
+	my $can_plan = shift;
+	_plan_for_test_more($can_plan);
+	_generate_test_config();
+}
+
+sub _shutdown {
+	my $had_plan = shift;
+	done_testing() unless $had_plan;
+}
+
+sub _setup {
+	_generate_test_repo();
+}
+
+sub _teardown {
+	system "rm -rf $dir";
+}
+
+sub _runtests {
+	my @coderefs = (@_);
+	for (@coderefs) {
+		_setup();
+		$_->();
+		_teardown();
+	}
+}
+
+sub _get_matching_test_subs {
+	my $re = shift;
+	no strict 'refs';
+	return map { \&{*$_} } grep { /$re/ } sort(list_module('main'));
+}
+
+sub _generate_test_config {
+	%config = IkiWiki::defaultconfig();
+	$config{rcs} = "cvs";
+	$config{srcdir} = "$dir/src";
+	$config{cvsrepo} = "$dir/repo";
+	$config{cvspath} = "ikiwiki";
+	IkiWiki::loadplugins();
+	IkiWiki::checkconfig();
+}
+
+sub _generate_test_repo {
+	die "can't create $dir: $!"
+		unless mkdir($dir);
+
+	my $cvs = "cvs -d $config{cvsrepo}";
+	my $dn = ">/dev/null";
+	system "$cvs init $dn";
+	system "mkdir $dir/$config{cvspath} $dn";
+	system "cd $dir/$config{cvspath} && "
+		. "$cvs import -m import $config{cvspath} VENDOR RELEASE $dn";
+	system "rm -rf $dir/$config{cvspath} $dn";
+	system "$cvs co -d $config{srcdir} $config{cvspath} $dn";
+}
+
+sub can_mkdir {
+	my $dir = shift;
+	ok(
+		mkdir($config{srcdir} . "/$dir"),
+		qq{can mkdir $dir},
+	);
+}
+
+sub is_newly_added {
+	my $file = shift;
+	is(
+		IkiWiki::Plugin::cvs::cvs_info("Repository revision", $file),
+		'1.1',
+		qq{$file is newly added to CVS},
+	);
+}
+
+sub is_in_keyword_substitution_mode {
+	my ($file, $mode) = @_;
+	$mode = '(none)' unless defined $mode;
+	is(
+		IkiWiki::Plugin::cvs::cvs_info("Sticky Options", $file),
+		$mode,
+		qq{$file is in CVS with expected keyword substitution mode},
+	);
+}
+
+sub is_total_number_of_changes {
+	my ($changes, $expected_total) = @_;
+	is(
+		$#{$changes},
+		$expected_total - 1,
+		qq{total commits == $expected_total},
+	);
+}
+
+sub is_most_recent_change {
+	my ($changes, $page, $message) = @_;
+	is(
+		$changes->[0]{message}[0]{"line"},
+		$message,
+		q{most recent commit's first message line matches},
+	);
+	is(
+		$changes->[0]{pages}[0]{"page"},
+		$page,
+		q{most recent commit's first pagename matches},
+	);
+}