[interchange] Add base infrastructure for testing RobotUA changes

commit 44c4b8071d787ff5ab55e84f6100c59aff217dfd
Author: David Christensen <[email protected]>
Date:   Tue Jan 17 16:18:42 2017 -0600

    Add base infrastructure for testing RobotUA changes

 t/robot_ua.t          |   93 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 93 insertions(+), 0 deletions(-)
---
diff --git a/t/robot_ua.t b/t/robot_ua.t
new file mode 100644
index 0000000..e5e1de9
--- /dev/null
+++ b/t/robot_ua.t
@@ -0,0 +1,93 @@
+#!perl
+
+use strict;
+use warnings;
+use lib 'lib';
+
+use Test::More;
+use Data::Dumper;
+
+use Vend::Server;
+use Vend::Config;
+
+*check_is_robot = *Vend::Server::check_is_robot;
+
+my $robot_cfg_path = "dist/robots.cfg";
+
+my @robot_uas     = read_file("t/robot_ua/ua.robot");
+my @not_robot_uas = read_file("t/robot_ua/ua.norobot");
+
+=for docs
+
+We have to mock a few things for the testing:
+
+Request environment:
+- $CGI::remote_addr
+- $CGI::remote_host
+- $CGI::host
+- $CGI::useragent
+
+Configuration:
+- Global::RobotIP
+- Global::RobotUA
+- Global::NotRobotUA
+
+=cut
+
+local $CGI::remote_addr = "127.0.0.1";
+local $CGI::remote_host = "example.com";
+local $CGI::host = "localhost";
+
+parse_robot_cfg($robot_cfg_path);
+
+# some sanity checks here
+
+ok( $Global::RobotIP,      "RobotIP regex exists"    );
+ok( $Global::RobotHost,    "RobotHost regex exists"  );
+ok( $Global::RobotUA,      "RobotUA regex exists"    );
+ok( $Global::NotRobotUA,   "NotRobotUA regex exists" );
+#ok( $Global::RobotUAFinal, "RobotUAFinal regex was created implicitly");
+
+# check various hard-coded UA strings that should/shouldn't get flagged as robots
+for my $ua (@robot_uas) {
+    is(check_is_robot($ua), 1);
+}
+
+for my $ua (@not_robot_uas) {
+    is(check_is_robot($ua), 0);
+}
+
+done_testing();
+
+sub parse_robot_cfg {
+    my $path = shift;
+    die "No such file '$path'!\n" unless $path && -f $path;
+
+    my $robot_lines = read_file($path);
+
+    my %D;
+
+    for my $directive (qw/RobotUA NotRobotUA RobotIP RobotHost/) {
+        # assuming these are and will stay here-docs
+        if ($robot_lines =~ m/$directive <<(\w+)(.*?)^\1/imsg) {
+            my $routine = $directive eq 'RobotUA' ? \&Vend::Config::parse_list_robotua : \&Vend::Config::parse_list_wildcard;
+
+            my $string = $2;
+            $string =~ s/\n//msg;
+
+            my $value = $routine->($directive, $string);
+
+            no strict 'refs';
+            ${"Global::$directive"} = qr/$value/;
+        }
+    }
+}
+
+sub read_file {
+    my $path = shift;
+
+    open my $fh, '<', $path or die "no such file: $path";
+
+    local $/ unless wantarray;
+    return <$fh>; # implicit close
+}
diff --git a/t/robot_ua/ua.norobot b/t/robot_ua/ua.norobot
new file mode 100644
index 0000000..e69de29
diff --git a/t/robot_ua/ua.robot b/t/robot_ua/ua.robot
new file mode 100644
index 0000000..e69de29