diff options
Diffstat (limited to 'basic/qa/basic_coverage/test_string_overflow_safe.vb')
| -rw-r--r-- | basic/qa/basic_coverage/test_string_overflow_safe.vb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/basic/qa/basic_coverage/test_string_overflow_safe.vb b/basic/qa/basic_coverage/test_string_overflow_safe.vb new file mode 100644 index 000000000..148cc910c --- /dev/null +++ b/basic/qa/basic_coverage/test_string_overflow_safe.vb @@ -0,0 +1,22 @@ +Option Explicit + +Function doUnitTest As Integer + ' Trying to create too long string should generate proper BASIC overflow error. + ' Longest possible string is 2147483638 wchar_t (2G - 10). + ' This tries to create string with 2G wchar_t. If it does not overflow, test fails. + ' If overflow is not safe, it segfaults. + On Error GoTo errorHandler + Dim s As String, i As Integer + s = "0" + For i=1 To 31 + s = s & s + Next i + doUnitTest = 0 + Exit Function +errorHandler: + If ( Err <> 6 ) Then + doUnitTest = 0 + Else + doUnitTest = 1 + Endif +End Function |