authenticated database access is not mandatory for testing

t/app.t

@@ -18,9 +18,7 @@ use AccessCheck::Data::Entity;
 plan(skip_all => 'live database required') unless
     $ENV{TEST_DB_HOST} &&
     $ENV{TEST_DB_NAME} &&
-    $ENV{TEST_DB_TYPE} &&
-    $ENV{TEST_DB_USERNAME} &&
-    $ENV{TEST_DB_PASSWORD};
+    $ENV{TEST_DB_TYPE};
 
 plan tests => 9;
 
@@ -37,8 +35,8 @@ sub setup {
     my $name = $args{name};
     my $host = $args{host};
     my $type = $args{type};
-    my $username = $args{username};
-    my $password = $args{password};
+    my $username = $args{username} || '';
+    my $password = $args{password} || '';
 
     system("mysqladmin --host=$host --user=$username --password=$password --force drop $name >/dev/null");
     system("mysqladmin --host=$host --user=$username --password=$password create $name >/dev/null") == 0

t/cli.t

@@ -34,9 +34,13 @@ SKIP: {
     skip 'live database required', 42 unless
         $ENV{TEST_DB_TYPE} &&
         $ENV{TEST_DB_HOST} &&
-        $ENV{TEST_DB_NAME} &&
-        $ENV{TEST_DB_USER} &&
-        $ENV{TEST_DB_PASSWORD};
+        $ENV{TEST_DB_NAME};
+
+    my $name = $ENV{TEST_DB_TYPE};
+    my $host = $ENV{TEST_DB_HOST};
+    my $type = $ENV{TEST_DB_TYPE};
+    my $username = $ENV{TEST_DB_USERNAME} || '';
+    my $password = $ENV{TEST_DB_PASSWORD} || '';
 
     my $config_file   = File::Temp->new(UNLINK => $ENV{TEST_DEBUG} ? 0 : 1);
     my $accounts_file = File::Temp->new(UNLINK => $ENV{TEST_DEBUG} ? 0 : 1);
@@ -52,11 +56,11 @@ scope = localhost
 account_validity_period = 2
 
 [database]
-type = $ENV{TEST_DB_TYPE}
-host = $ENV{TEST_DB_HOST}
-name = $ENV{TEST_DB_NAME}
-user = $ENV{TEST_DB_USER}
-password = $ENV{TEST_DB_PASSWORD}
+type = $type
+host = $host
+name = $name
+user = $username
+password = $password
 EOF
     $config_file->flush();