Unit tests to verify that the PHP 7.4 underscore in numeric values still works correctly with Explicit octal values when they have to be backfilled

Author: MarkBaker

tests/Core/Tokenizer/BackfillNumericSeparatorTest.inc

@@ -34,6 +34,9 @@ $foo = 0b0101_1111;
 /* testOctal */
 $foo = 0137_041;
 
+/* testExplicitOctal (Introduced in PHP 8.1) */
+$foo = 0o137_041;
+
 /* testIntMoreThanMax */
 $foo = 10_223_372_036_854_775_807;
 

tests/Core/Tokenizer/BackfillNumericSeparatorTest.php

@@ -132,6 +132,13 @@ public function dataTestBackfill()
                     'value'  => '0137_041',
                 ],
             ],
+            [
+                [
+                    'marker' => '/* testExplicitOctal (Introduced in PHP 8.1) */',
+                    'type'   => 'T_LNUMBER',
+                    'value'  => '0o137_041',
+                ],
+            ],
             [
                 [
                     'marker' => '/* testIntMoreThanMax */',