Add more tests and move them to a script

.travis.yml

@@ -2,7 +2,7 @@ language: python
 sudo: false
 
 cache:
-  directories: cache
+  directories: test/cache
 
 python:
   - "2.7"
@@ -16,15 +16,4 @@ install:
 script:
   - pyflakes .
   - pep8 . --max-line-length 99 --ignore E302
-  - python hererocks.py here -l 5.3 -r^ --downloads cache --builds cache
-  - export PATH=$PATH:$PWD/here/bin
-  - lua -v
-  - luarocks --version
-  - luarocks make
-  - hererocks-test
-  - rm here -r
-  - python hererocks.py here -j 2.1 -r^ --downloads cache --builds cache
-  - lua -v
-  - luarocks --version
-  - luarocks make
-  - hererocks-test
+  - ./test.sh

test.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -ev
+export PATH="$PWD/test/here/bin:$PATH"
+HEREROCKS="python hererocks.py test/here --downloads test/cache --builds test/cache"
+
+rm test/here -rf
+$HEREROCKS -l^ -r^
+lua -v
+luarocks --version
+luarocks make
+hererocks-test | grep "5\.3"
+$HEREROCKS -l^ -r^ | grep "already installed"
+
+rm test/here -rf
+$HEREROCKS -j 2.1 -r^
+lua -v
+luarocks --version
+luarocks make
+hererocks-test | grep "2\.1"
+
+rm test/here -rf
+$HEREROCKS -l 5.1 --compat=none
+lua -e "assert(not pcall(string.gfind, '', '.'))"
+lua -e "(function(...) assert(arg == nil) end)()"
+lua -e "assert(math.mod == nil)"
+
+rm test/here -rf
+$HEREROCKS -l 5.3 --compat=none
+lua -e "assert(module == nil)"