[WIP/PATCH v4] gitweb: add test suite with Test::WWW::Mechanize::CGI

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This test uses Test::WWW::Mechanize::CGI to check gitweb's output.  It
also uses HTML::Lint (if present) to validate the HTML.

TOOD: Make this runnable even when the path to the git tree (i.e. your
working copy) contains blanks.
http://mid.gmane.org/200806202003.55919.jnareb@xxxxxxxxx

Signed-off-by: Jakub Narebski <jnareb@xxxxxxxxx>
Signed-off-by: Lea Wiemann <LeWiemann@xxxxxxxxx>
---
This for everyone's reference so you have my most recent version to
base changes on.

Changed since v3: applied Jakub's suggestions, and added TODO note to
commit message so this doesn't get applied accidentally.

 t/t9503-gitweb-Mechanize.sh |  128 +++++++++++++++++++++++++++++++++++++++++++
 t/t9503/test.pl             |  128 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 256 insertions(+), 0 deletions(-)
 create mode 100755 t/t9503-gitweb-Mechanize.sh
 create mode 100755 t/t9503/test.pl

diff --git a/t/t9503-gitweb-Mechanize.sh b/t/t9503-gitweb-Mechanize.sh
new file mode 100755
index 0000000..abcf987
--- /dev/null
+++ b/t/t9503-gitweb-Mechanize.sh
@@ -0,0 +1,128 @@
+#!/bin/sh
+#
+# Copyright (c) 2008 Jakub Narebski
+# Copyright (c) 2008 Lea Wiemann
+#
+
+test_description='gitweb as CGI (using WWW::Mechanize)
+
+This test uses Perl module Test::WWW::Mechanize::CGI to
+check gitweb output, using HTML::Lint to validate HTML.'
+
+# helper functions
+
+safe_chmod () {
+	chmod "$1" "$2" &&
+	if [ "$(git config --get core.filemode)" = false ]
+	then
+		git update-index --chmod="$1" "$2"
+	fi
+}
+
+. ./test-lib.sh
+
+# check if test can be run
+perl -MEncode -e 'decode_utf8("", Encode::FB_CROAK)' >/dev/null 2>&1 || {
+	test_expect_success \
+		'skipping gitweb tests, perl version is too old' :
+	test_done
+	exit
+}
+
+perl -MTest::WWW::Mechanize::CGI -e '' >/dev/null 2>&1 || {
+	test_expect_success \
+		'skipping gitweb tests, Test::WWW::Mechanize::CGI not found' :
+	test_done
+	exit
+}
+
+# set up test repository
+test_expect_success 'set up test repository' '
+
+	echo "Not an empty file." > file &&
+	git add file &&
+	test_tick && git commit -a -m "Initial commit." &&
+	git branch b &&
+
+	echo "New file" > new_file &&
+	git add new_file &&
+	test_tick && git commit -a -m "File added." &&
+
+	safe_chmod +x new_file &&
+	test_tick && git commit -a -m "Mode changed." &&
+
+	git mv new_file renamed_file &&
+	test_tick && git commit -a -m "File renamed." &&
+
+	rm renamed_file &&
+	ln -s file renamed_file &&
+	test_tick && git commit -a -m "File to symlink." &&
+	git tag with-symlink &&
+
+	git rm renamed_file &&
+	rm -f renamed_file &&
+	test_tick && git commit -a -m "File removed." &&
+
+	cp file file2 &&
+	git add file2 &&
+	test_tick && git commit -a -m "File copied." &&
+
+	echo "New line" >> file2 &&
+	safe_chmod +x file2 &&
+	test_tick && git commit -a -m "Mode change and modification." &&
+
+	git checkout b &&
+	echo "Branch" >> b &&
+	git add b &&
+	test_tick && git commit -a -m "On branch" &&
+	git checkout master &&
+	test_tick && git pull . b
+'
+
+# set up empty repository
+# TODO!
+
+# set up repositories for gitweb
+# TODO!
+
+# set up gitweb configuration
+safe_pwd="$(perl -MPOSIX=getcwd -e 'print quotemeta(getcwd)')"
+cat >gitweb_config.perl <<EOF
+#!/usr/bin/perl
+
+# gitweb configuration for tests
+
+our \$version = "current";
+our \$GIT = "$GIT_EXEC_PATH/git";
+our \$projectroot = "$safe_pwd";
+our \$project_maxdepth = 8;
+our \$home_link_str = "projects";
+our \$site_name = "[localhost]";
+our \$site_header = "";
+our \$site_footer = "";
+our \$home_text = "indextext.html";
+our @stylesheets = ("file:///$safe_pwd/../../gitweb/gitweb.css");
+our \$logo = "file:///$safe_pwd/../../gitweb/git-logo.png";
+our \$favicon = "file:///$safe_pwd/../../gitweb/git-favicon.png";
+our \$projects_list = "";
+our \$export_ok = "";
+our \$strict_export = "";
+
+1;
+__END__
+EOF
+
+cat >.git/description <<EOF
+$0 test repository
+EOF
+
+GITWEB_CONFIG="$(pwd)/gitweb_config.perl"
+export GITWEB_CONFIG
+
+# run tests
+
+test_external \
+	'test gitweb output' \
+	perl ../t9503/test.pl
+
+test_done
diff --git a/t/t9503/test.pl b/t/t9503/test.pl
new file mode 100755
index 0000000..7e7c98c
--- /dev/null
+++ b/t/t9503/test.pl
@@ -0,0 +1,128 @@
+#!/usr/bin/perl
+use lib (split(/:/, $ENV{GITPERLLIB}));
+
+use warnings;
+use strict;
+
+use Cwd qw(abs_path);
+use File::Spec;
+
+# We don't count properly when skipping, so no_plan is necessary.
+use Test::More qw(no_plan);
+use Test::WWW::Mechanize::CGI;
+
+my $long_tests = $ENV{GIT_TEST_LONG};
+
+eval { require HTML::Lint };
+my $use_lint = !$@;
+diag('HTML::Lint is not installed; no HTML validation tests')
+    unless $use_lint;
+
+my @revisions = split /\s/, `git-rev-list --first-parent HEAD`;
+my $head = $revisions[0];
+
+my $gitweb = File::Spec->catfile('..','..','gitweb','gitweb.cgi');
+# The following two lines of code are a workaround for a bug in
+# Test::WWW::Mechanize::CGI::cgi_application version up to 0.3
+# (http://rt.cpan.org/Ticket/Display.html?id=36654) for pathnames with
+# spaces (because of "trash directory")
+$gitweb = File::Spec->rel2abs($gitweb);
+$gitweb = Cwd::abs_path($gitweb);
+
+my $mech = new Test::WWW::Mechanize::CGI;
+$mech->cgi_application($gitweb);
+# On some systems(?) it's necessary to have %ENV here, otherwise the
+# CGI process won't get *any* of the current environment variables
+# (not even PATH, etc.)
+$mech->env(%ENV, GITWEB_CONFIG => $ENV{'GITWEB_CONFIG'}, $mech->env);
+
+# import config, predeclaring config variables
+my $site_name = '';
+require_ok($ENV{'GITWEB_CONFIG'})
+	or diag('Could not load gitweb config; some tests would fail');
+
+my %checked_pages;
+# Validate and spider the current page, if --long-tests (-l) is given.
+sub check_page {
+	my $uri = $mech->uri;
+	if (not $checked_pages{$uri}) {
+		$mech->html_lint_ok('validate') or return 0 if $long_tests && $use_lint;
+		$mech->page_links_ok("check links on $uri") if $long_tests;
+		$checked_pages{$uri} = 1;
+	}
+	return 1
+}
+
+my $baseurl = "http://localhost";;
+my ($params, $url, $pagedesc, $status);
+
+# test_page ( <params>, <page_description>, <expected_status> )
+# Example:
+# if (test_page('?p=.git;a=summary', 'repository summary')) {
+#     $mech->...;
+#     $mech->...;
+# }
+#
+# Test that the page can be opened (and if --long-tests is given that
+# it validates and has valid links), and return true if it does.  Also
+# set the global variables $params, $pagedesc, and $url for use in the
+# if block.  Optionally pass a third parameter $status to test the
+# HTTP status code of the page (useful for error pages).
+sub test_page {
+	($params, $pagedesc, $status) = @_;
+	$url = "$baseurl$params";
+	if($status) {
+		$mech->get($url);
+	} else {
+		$mech->get_ok($url, "GET \"$params\" -- $pagedesc") or return 0;
+	}
+	check_page or return 0;
+	if($status) {
+		return is($mech->status, $status, "GET \"$params\" -- $pagedesc -- yields $status");
+	} else {
+		return 1;
+	}
+}
+
+if (test_page '', 'project list (implicit)') {
+	$mech->title_like(qr!$site_name!,
+		"title contains $site_name");
+	$mech->content_contains('./t9503-gitweb-Mechanize.sh test repository', 
+		'lists test repository (by description)');
+}
+
+# Test repository summary: implicit, implicit with pathinfo, explicit.
+for my $sumparams ('?p=.git', '/.git', '?p=.git;a=summary') {
+	if (test_page $sumparams, 'repository summary') {
+		$mech->title_like(qr!$site_name.*\.git/summary!,
+				  "title contains $site_name and \".git/summary\"");
+	}
+}
+
+# Search form (on summary page).
+$mech->get_ok('?p=.git', 'get repository summary');
+if ($mech->submit_form_ok( { form_number => 1,
+			     fields => { 's' => 'Initial' }
+			   }, "submit search form (default)")) {
+	check_page;
+	$mech->content_contains('Initial commit',
+				'content contains searched commit');
+}
+
+test_page('?p=non-existent.git', 'non-existent project', 404);
+test_page('?p=.git;a=commit;h=non-existent', 'non-existent commit', 404);
+
+# Summary page.
+
+# Check short log.  To do: Extract into separate test_short_log
+# function since the short log occurs on several pages.
+$mech->get_ok('?p=.git', 'get repository summary');
+for my $revision (@revisions[0..2]) {
+	for my $link_text qw( commit commitdiff tree snapshot ) {
+		ok($mech->find_link(url_abs_regex => qr/h=$revision/, text => $link_text), "$link_text link for $revision");
+	}
+}
+
+
+1;
+__END__
-- 
1.5.6.80.g3141.dirty

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