ext/ldap: Add test for reference in modification array

Author: Girgias

ext/ldap/tests/ldap_modify_batch_modifications_with_references.phpt

@@ -0,0 +1,67 @@
+--TEST--
+ldap_modify_batch() - modification array contains references
+--EXTENSIONS--
+ldap
+--FILE--
+<?php
+
+/* We are assuming 3333 is not connectable */
+$ldap = ldap_connect('ldap://127.0.0.1:3333');
+$valid_dn = "cn=userA,something";
+
+$attrib = "attrib1";
+$r =& $attrib;
+$modification_attrib_reference_string = [
+    [
+        "attrib"  => $r,
+        "modtype" => LDAP_MODIFY_BATCH_ADD,
+        "values"  => ["value1"],
+    ],
+];
+try {
+    var_dump(ldap_modify_batch($ldap, $valid_dn, $modification_attrib_reference_string));
+} catch (Throwable $e) {
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
+}
+
+$modtype = LDAP_MODIFY_BATCH_ADD;
+$r =& $modtype;
+$modification_modtype_reference_int = [
+    [
+        "attrib"  => "attrib1",
+        "modtype" => $r,
+        "values"  => ["value1"],
+    ],
+];
+try {
+    var_dump(ldap_modify_batch($ldap, $valid_dn, $modification_modtype_reference_int));
+} catch (Throwable $e) {
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
+}
+
+
+$values = ["value1"];
+$r =& $values;
+$modification_values_reference_array = [
+    [
+        "attrib"  => "attrib1",
+        "modtype" => LDAP_MODIFY_BATCH_ADD,
+        "values"  => $r,
+    ],
+];
+try {
+    var_dump(ldap_modify_batch($ldap, $valid_dn, $modification_values_reference_array));
+} catch (Throwable $e) {
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
+}
+
+?>
+--EXPECTF--
+Warning: ldap_modify_batch(): Batch Modify: Can't contact LDAP server in %s on line %d
+bool(false)
+
+Warning: ldap_modify_batch(): Batch Modify: Can't contact LDAP server in %s on line %d
+bool(false)
+
+Warning: ldap_modify_batch(): Batch Modify: Can't contact LDAP server in %s on line %d
+bool(false)