From 356047b920ddb96f587fea1631c64fbd6da8bc2d Mon Sep 17 00:00:00 2001
From: Tomas Cohen Arazi <tomascohen@theke.io>
Date: Mon, 9 Oct 2017 15:36:41 -0300
Subject: [PATCH] Bug 19440: Identify overlimit problems in XISBN tests

This patch makes C4::XISBN::get_xisbns() return an errors hashref
including information of the failing fetches from xisbn services.

It tackles the situation of XISBN, which in some cases returns 'overlimit'
errors.

The patch makes the relevant functions check if the response->{stat} string
is 'ok' and returns the string in $errors otherwise.

This only happens when in list context. This allows to fix the randomly failing
tests while keeping the current behaviour.

All this code should be rewritten. It does the job bug doesn't have problems handling
or reoprting. This is just a band aid.

To test:
- Make sure
 k$ prove t/db_dependent/XISBN.t
=> SUCCESS :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Mason James <mtj@kohaaloha.com>
---
 C4/XISBN.pm            | 11 +++++++++--
 t/db_dependent/XISBN.t |  8 ++++----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/C4/XISBN.pm b/C4/XISBN.pm
index 55126334b3..00a4ce412b 100644
--- a/C4/XISBN.pm
+++ b/C4/XISBN.pm
@@ -88,7 +88,7 @@ sub _get_biblio_from_xisbn {
 
 sub get_xisbns {
     my ( $isbn ) = @_;
-    my ($response,$thing_response,$xisbn_response,$syndetics_response);
+    my ($response,$thing_response,$xisbn_response,$syndetics_response,$errors);
     # THINGISBN
     if ( C4::Context->preference('ThingISBN') ) {
         my $url = "http://www.librarything.com/api/thingISBN/".$isbn;
@@ -114,6 +114,8 @@ sub get_xisbns {
         unless ($reached_limit) {
             $xisbn_response = _get_url($url,'xisbn');
         }
+        $errors->{xisbn} = $xisbn_response->{ stat }
+            if $xisbn_response->{ stat } ne 'ok';
     }
 
     $response->{isbn} = [ @{ $xisbn_response->{isbn} or [] },  @{ $syndetics_response->{isbn} or [] }, @{ $thing_response->{isbn} or [] } ];
@@ -129,7 +131,12 @@ sub get_xisbns {
         my $xbiblio= _get_biblio_from_xisbn($response_data->{content});
         push @xisbns, $xbiblio if $xbiblio;
     }
-    return \@xisbns;
+    if ( wantarray ) {
+        return (\@xisbns, $errors);
+    }
+    else {
+        return \@xisbns;
+    }
 }
 
 sub _get_url {
diff --git a/t/db_dependent/XISBN.t b/t/db_dependent/XISBN.t
index 2f6d63b5b8..df598ceabb 100755
--- a/t/db_dependent/XISBN.t
+++ b/t/db_dependent/XISBN.t
@@ -25,7 +25,7 @@ $dbh->{AutoCommit} = 0;
 my $search_module = new Test::MockModule('C4::Search');
 
 $search_module->mock('SimpleSearch', \&Mock_SimpleSearch );
-
+my $errors;
 my $context = C4::Context->new;
 
 my ( $biblionumber_tag, $biblionumber_subfield ) =
@@ -73,10 +73,10 @@ t::lib::Mocks::mock_preference( 'ThingISBN', 0 );
 t::lib::Mocks::mock_preference( 'XISBN', 1 );
 
 my $results_xisbn;
-eval { $results_xisbn = C4::XISBN::get_xisbns($isbn1); };
+eval { ($results_xisbn, $errors) = C4::XISBN::get_xisbns($isbn1); };
 SKIP: {
-    skip "Problem retrieving XISBN", 1
-        unless $@ eq '';
+    skip "Problem retrieving XISBN (" . $errors->{xisbn} . ")", 1
+        if $errors->{xisbn};
     is( $results_xisbn->[0]->{biblionumber},
         $biblionumber3,
         "Gets correct biblionumber from a book with a similar isbn using XISBN." );