WL#5050: Increase coverage of Field::val_xxx methods in main test suite
Affects: Server-9.x — Status: Code-Review — Priority: Medium
Coverage analysis has shown that a few val_xxx methods in Field classes are not covered by the main test suite. This worklog will extend test suite to cover those methods.
The following val_xxx methods is not covered by the main test suite. Tests for these methods should, if possible, be added: Field_double::val_int() Field_float::val_int() Field_blob::val_int() Field_varstring::val_int() In addition, the following classes are not covered at all: Field_null Field_date Field_decimal
An attempt has been made to find SQL that invoke the methods in question. Result: Field_double::val_int() Field_float::val_int() To test these methods, test cases that cast of double/float columns to signed/unsigned integers will be added to main.cast test. Field_blob::val_int() Field_varstring::val_int() The following statements will trigger these methods: select 1 from t1 where <column>; select left('1234567890', <column>) from t1; Similar test cases will be added to main.type_blob test. (Casting relevant columns to integers as above do not apply since conversion is then done by Item_func_signed::val_int_from_str()) Field_null So far, no way has been found to instantiate Field_null with SQL. Field_date Field_decimal These classes represent obsolete SQL types and will not be tested. A worklog will be created for the removal of these classes.
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