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#!/bin/sh
# Syntax ok?
fn() { echo $* }
# Can we invoke that?
test "$(fn 1)" = 1 || echo cannot invoke "'fn 1'" && exit 1
test "$(fn 1 2)" = "1 2" || echo cannot invoke "'fn 1 2'" && exit 1
# With explicit argument names?
fn(a) { echo $a }
# Can we invoke that?
test "$(fn 1)" = 1 || echo cannot invoke "'fn 1'" with explicit names && exit 1
test "$(fn 1 2)" = 1 || echo cannot invoke "'fn 1 2'" with explicit names and extra arguments && exit 1
# Can it fail?
if fn 2>/dev/null {
echo "'fn'" with an explicit argument is not failing with not enough args
exit 1
}
# $0 in function should be its name
fn() { echo $0 }
test "$(fn)" = fn || echo '$0' in function not equal to its name && exit 1
# Ensure ARGV does not leak from inner frames.
fn() {
fn2 1 2 3
echo $*
}
fn2() { }
test "$(fn foobar)" = "foobar" || echo 'Frames are somehow messed up in nested functions' && exit 1
fn(xfoo) { }
xfoo=1
fn 2
test $xfoo -eq 1 || echo 'Functions overwrite parent scopes' && exit 1
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