busybox/shell/ash_test/ash-vars/var_nested1.tests

f() { a=A; b=B; }

a=a
b=b
f
echo Expected:AB Actual:$a$b

a=a
b=b
b= f
echo Expected:Ab Actual:$a$b

a=a
b=b
a= b= f
echo Expected:ab Actual:$a$b