Add more null tests

Author: mlazdans

tests/nulls_002.phpt

@@ -0,0 +1,79 @@
+--TEST--
+Test NULLs
+--SKIPIF--
+<?php include("skipif.inc"); ?>
+--FILE--
+<?php
+
+require("interbase.inc");
+ibase_connect($test_base);
+
+(function(){
+    ibase_query(
+        "CREATE TABLE ITEMS (
+            ID INTEGER,
+            CODE VARCHAR(5) CHARACTER SET NONE,
+            MAN_ID INTEGER
+        )"
+    );
+    ibase_commit_ret();
+
+    $data = [
+        [1, "1", 10],
+        [2, "2", 20],
+        [3, "", NULL],
+        [4, "4", 40],
+        [5, "", NULL],
+    ];
+
+    $p = ibase_prepare("INSERT INTO ITEMS (ID, CODE, MAN_ID) VALUES (?, ?, ?)");
+
+    foreach ($data as $row) {
+        ibase_execute($p, ...$row);
+    }
+
+    dump_table_rows("ITEMS");
+})();
+
+?>
+--EXPECT--
+array(3) {
+  ["ID"]=>
+  int(1)
+  ["CODE"]=>
+  string(1) "1"
+  ["MAN_ID"]=>
+  int(10)
+}
+array(3) {
+  ["ID"]=>
+  int(2)
+  ["CODE"]=>
+  string(1) "2"
+  ["MAN_ID"]=>
+  int(20)
+}
+array(3) {
+  ["ID"]=>
+  int(3)
+  ["CODE"]=>
+  string(0) ""
+  ["MAN_ID"]=>
+  NULL
+}
+array(3) {
+  ["ID"]=>
+  int(4)
+  ["CODE"]=>
+  string(1) "4"
+  ["MAN_ID"]=>
+  int(40)
+}
+array(3) {
+  ["ID"]=>
+  int(5)
+  ["CODE"]=>
+  string(0) ""
+  ["MAN_ID"]=>
+  NULL
+}