#!/usr/bin/env tclsh

set testdir [file dirname $argv0]
source $testdir/tester.tcl

do_execsql_test abs {
    select abs(1);
} {1}

do_execsql_test abs-negative {
    select abs(-1);
} {1}

do_execsql_test abs-char {
    select abs('a');
} {0.0}

do_execsql_test abs-null {
    select abs(null);
} {}