Tests: add configuration file loading to integration test

 * tests/integration/README:
 * tests/integration/saml2/__init__.py:
   If ~/.config/lasso_integration.conf exists, load it to find path to
   authentic and lcs.
   Add support for three environement variables:
    - LASSO_BUILDDIR, to specify an out of source build directory to
      test,
    - NO_SILENT, to allow authentic and lcs outputs,
    - VALGRIND, to check memory leaks using valgrind.

1 files changed, 13 insertions, 3 deletions

diff --git a/tests/integration/README b/tests/integration/README
index cbc9cc61..da72cfd7 100644
--- a/tests/integration/README
+++ b/tests/integration/README
@@ -6,10 +6,20 @@ Requirements:
  - nose (apt-get install python-nose)
  - Authentic & LCS from Subversion and CVS
 
+
+
 Default configuration is to look for apps in their installation directories,
-but it is also possible to run tests without installing anything.  Example
-of a config file is in tests/config.py.example (must be renamed to config.py to
-be effective).
+but it is also possible to run tests without installing anything.  Example of a
+config file is in tests/config.py.example (must be renamed to config.py to be
+effective). You can also place a configuration file in
+~/.config/lasso_integration.conf, the format is "key = value" without any
+quoting.
 
 Tests are run with nosetests from this directory.
 
+You can use the following environement variables to fine tune the execution of
+the tests:
+        - LASSO_BUILDDIR, to specify an out of source build directory to
+          test,
+        - NO_SILENT, to allow authentic and lcs outputs,
+        - VALGRIND, to check memory leaks using valgrind.