Test for the directory structure

Ensure that calcurse uses the right data and configuration directories
depending on the conditions.

Helped-by: Lars Henriksen <LarsHenriksen@get2net.dk>
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>

test/io-001.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+. "${TEST_INIT:-./test-init.sh}"
+data=$(mktemp -d)
+
+"$CALCURSE" -a -D "$data"
+[ -f "$data/apts" ] && [ -f "$data/conf" ] && failed=0 || failed=1
+
+rm -rf "$data"
+exit "$failed"