Add a test for data with fields introduced in FB4.0 (#78)

Author: mlazdans

tests/common.inc

@@ -85,3 +85,10 @@ function test_fields40(): void {
 		printf("%s/%s/%d\n", $info["name"], $info["type"], $info["length"]);
 	}
 }
+
+function test_field_data40(): void {
+	ibase_query(file_get_contents(__DIR__."/001-FIELDS40.sql"));
+	ibase_commit();
+	ibase_query("INSERT INTO FIELDS40 (ID) VALUES (1)");
+	dump_table_rows("FIELDS40");
+}

tests/fb40fields_001.phpt

@@ -0,0 +1,36 @@
+--TEST--
+Test data for fields introduced in FB 4.0
+--SKIPIF--
+<?php
+include("skipif.inc");
+skip_if_fb_lt(4);
+skip_if_fbclient_lt(4);
+?>
+--FILE--
+<?php
+
+require("interbase.inc");
+require("common.inc");
+ibase_connect($test_base);
+test_field_data40();
+
+?>
+--EXPECT--
+array(8) {
+  ["ID"]=>
+  int(1)
+  ["NUMERIC_4"]=>
+  string(39) "3.1415926535897932384626433832795028841"
+  ["DECIMAL_4"]=>
+  string(39) "3.1415926535897932384626433832795028841"
+  ["DECFLOAT_16"]=>
+  string(17) "3.141592653589793"
+  ["DECFLOAT_34"]=>
+  string(35) "3.141592653589793238462643383279502"
+  ["INT128_FIELD"]=>
+  string(40) "-170141183460469231731687303715884105727"
+  ["TIME_TZ"]=>
+  string(22) "15:45:59 Europe/Berlin"
+  ["TIMESTAMP_TZ"]=>
+  string(33) "2025-11-06 15:45:59 Europe/Berlin"
+}

tests/fb40fields_002.phpt

@@ -0,0 +1,36 @@
+--TEST--
+Test data for fields introduced in FB 4.0, with older client
+--SKIPIF--
+<?php
+include("skipif.inc");
+skip_if_fb_lt(4);
+skip_if_fbclient_gte(4);
+?>
+--FILE--
+<?php
+
+require("interbase.inc");
+require("common.inc");
+ibase_connect($test_base);
+test_field_data40();
+
+?>
+--EXPECT--
+array(8) {
+  ["ID"]=>
+  int(1)
+  ["NUMERIC_4"]=>
+  string(39) "3.1415926535897932384626433832795028841"
+  ["DECIMAL_4"]=>
+  string(39) "3.1415926535897932384626433832795028841"
+  ["DECFLOAT_16"]=>
+  string(17) "3.141592653589793"
+  ["DECFLOAT_34"]=>
+  string(35) "3.141592653589793238462643383279502"
+  ["INT128_FIELD"]=>
+  string(40) "-170141183460469231731687303715884105727"
+  ["TIME_TZ"]=>
+  string(8) "16:45:59"
+  ["TIMESTAMP_TZ"]=>
+  string(19) "2025-11-06 16:45:59"
+}