move test files out of py lib proper

* separate all tests from plugins
* simplify implicit inclusion of plugins under test
* have test_initpkg perform direct checks instead of yielding tests
* fix example tests for 3k

--HG--
branch : trunk

conftest.py

@@ -0,0 +1,55 @@
+pytest_plugins = '_pytest doctest pytester'.split()
+
+rsyncdirs = ['conftest.py', 'py', 'doc', 'testing']
+
+import py
+def pytest_addoption(parser):
+    group = parser.addgroup("pylib", "py lib testing options")
+    group.addoption('--sshhost', 
+           action="store", dest="sshhost", default=None,
+           help=("ssh xspec for ssh functional tests. "))
+    group.addoption('--gx', 
+           action="append", dest="gspecs", default=None,
+           help=("add a global test environment, XSpec-syntax. "))
+    group.addoption('--runslowtests',
+           action="store_true", dest="runslowtests", default=False,
+           help=("run slow tests"))
+
+def pytest_funcarg__specssh(request):
+    return getspecssh(request.config)
+def pytest_funcarg__specsocket(request):
+    return getsocketspec(request.config)
+
+
+# configuration information for tests 
+def getgspecs(config=None):
+    if config is None:
+        config = py.test.config
+    return [py.execnet.XSpec(spec) 
+                for spec in config.getvalueorskip("gspecs")]
+
+def getspecssh(config=None):
+    xspecs = getgspecs(config)
+    for spec in xspecs:
+        if spec.ssh:
+            if not py.path.local.sysfind("ssh"):
+                py.test.skip("command not found: ssh")
+            return spec
+    py.test.skip("need '--gx ssh=...'")
+
+def getsocketspec(config=None):
+    xspecs = getgspecs(config)
+    for spec in xspecs:
+        if spec.socket:
+            return spec
+    py.test.skip("need '--gx socket=...'")
+
+
+def pytest_generate_tests(metafunc):
+    multi = getattr(metafunc.function, 'multi', None)
+    if multi is None:
+        return
+    assert len(multi.__dict__) == 1
+    for name, l in multi.__dict__.items():
+        for val in l:
+            metafunc.addcall(funcargs={name: val})