delete PERL_YAML_BACKEND and PERL_JSON_BACKEND in T/TEST

If these are set, Parse-CPAN-Meta and other things that depend
on it may fail.

1 files changed, 6 insertions, 1 deletions

diff --git a/t/TEST b/t/TEST
index c2c81e95be..f635da7908 100755
--- a/t/TEST
+++ b/t/TEST
@@ -81,7 +81,12 @@ my %temp_no_core =
 # delete env vars that may influence the results
 # but allow override via *_TEST env var if wanted
 # (e.g. PERL5OPT_TEST=-d:NYTProf)
-for my $envname (qw(PERL5LIB PERLLIB PERL5OPT)) {
+my @bad_env_vars = qw(
+    PERL5LIB PERLLIB PERL5OPT
+    PERL_YAML_BACKEND PERL_JSON_BACKEND
+);
+
+for my $envname (@bad_env_vars) {
     my $override = $ENV{"${envname}_TEST"};
     if (defined $override) {
 	warn "$0: $envname=$override\n";