Insert to field accepted although adjusted

[John Peter Paredes]

I have a table TEST and a field name TESTFIELD. i am running some tests on various data types. I have made my research on the INTEGER data types in mysql and saw that TINYINT is -128 up to 127 by default (SIGNED) and 0-256 when (UNSIGNED) i set the TESTFIELD to TINYINT (UNSIGNED by default) and ran a few insert calls

INSERT INTO TEST (TESTFIELD) VALUES(-130)

The problem that i have encountered is that MYSQL will give me a warning for this but will accept the change although adjusting -130 to -128. This would be a problem if created an Application where i can just type in numbers in there and it will update the table in MYSQL because i dont see any messagebox or prompt letting me know that the value i typed in would be adjusted. i had SWITCH OFF the STRICT MODE in mysql. is this why its doing that ?

Many thanks for any help that you can provide