diff options
Diffstat (limited to 'ext/filter/tests/046.phpt')
| -rw-r--r-- | ext/filter/tests/046.phpt | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/ext/filter/tests/046.phpt b/ext/filter/tests/046.phpt new file mode 100644 index 0000000..bc45442 --- /dev/null +++ b/ext/filter/tests/046.phpt @@ -0,0 +1,49 @@ +--TEST-- +Integer overflow +--SKIPIF-- +<?php if (!extension_loaded("filter")) die("skip"); ?> +--FILE-- +<?php +$max = sprintf("%d", PHP_INT_MAX); +switch($max) { +case "2147483647": /* 32-bit systems */ + $min = "-2147483648"; + $overflow = "2147483648"; + $underflow = "-2147483649"; + break; +case "9223372036854775807": /* 64-bit systems */ + $min = "-9223372036854775808"; + $overflow = "9223372036854775808"; + $underflow = "-9223372036854775809"; + break; +default: + die("failed: unknown value for PHP_MAX_INT"); + break; +} + +function test_validation($val, $msg) { + $f = filter_var($val, FILTER_VALIDATE_INT); + echo "$msg filtered: "; var_dump($f); // filtered value (or false) + echo "$msg is_long: "; var_dump(is_long($f)); // test validation + echo "$msg equal: "; var_dump($val == $f); // test equality of result +} + +// PHP_INT_MAX +test_validation($max, "max"); +test_validation($overflow, "overflow"); +test_validation($min, "min"); +test_validation($underflow, "underflow"); +?> +--EXPECTF-- +max filtered: int(%d) +max is_long: bool(true) +max equal: bool(true) +overflow filtered: bool(false) +overflow is_long: bool(false) +overflow equal: bool(false) +min filtered: int(-%d) +min is_long: bool(true) +min equal: bool(true) +underflow filtered: bool(false) +underflow is_long: bool(false) +underflow equal: bool(false) |