qpkg: added regression test harness and a few tests

- Makefile (test, tests, valgrind): new targets to run regression tests
- test/Common: test harness (adapted from fped)
- test/minpkg: test minimum package definition
- test/prereq: test basic prerequisite queries

qpkg/test/minpkg

@@ -0,0 +1,43 @@
+#!/bin/sh
+. ./Common
+
+###############################################################################
+
+qpkg_fail "no Version field" <<EOF
+Package: test
+EOF
+expect <<EOF
+package test has no version
+EOF
+
+###############################################################################
+
+qpkg_fail "no Architecture field" <<EOF
+Package: test
+Version: 1
+EOF
+expect <<EOF
+package test version 1 has no architecture
+EOF
+
+###############################################################################
+
+qpkg_fail "no Filename field" <<EOF
+Package: whatever
+Version: 1
+Architecture: test
+EOF
+expect <<EOF
+package whatever version 1 has no file name (nor is it installed)
+EOF
+
+###############################################################################
+
+qpkg "minimum package definition" <<EOF
+Package: whatever
+Version: 1
+Architecture: test
+Filename: whatever_1_test.ipkg
+EOF
+expect <<EOF
+EOF