Add flags to disable certain classes of unit tests

Change-Id: Ib00b879d3abf0e356d502b8c374324be684670da

Author: wesm

python/manylinux1/build_arrow.sh

@@ -80,7 +80,10 @@ for PYTHON in ${PYTHON_VERSIONS}; do
     echo "=== (${PYTHON}) Testing manylinux1 wheel ==="
     source /venv-test-${PYTHON}/bin/activate
     pip install repaired_wheels/*.whl
-    py.test --parquet /venv-test-${PYTHON}/lib/*/site-packages/pyarrow
+
+    # ARROW-1264; for some reason the test case added causes a segfault inside
+    # the Docker container when writing and error message to stderr
+    py.test --parquet /venv-test-${PYTHON}/lib/*/site-packages/pyarrow -v -s --disable-plasma
     deactivate
 
     mv repaired_wheels/*.whl /io/dist

python/pyarrow/tests/conftest.py

@@ -51,6 +51,11 @@ def pytest_addoption(parser):
                          default=defaults[group],
                          help=('Enable the {0} test group'.format(group)))
 
+    for group in groups:
+        parser.addoption('--disable-{0}'.format(group), action='store_true',
+                         default=False,
+                         help=('Disable the {0} test group'.format(group)))
+
     for group in groups:
         parser.addoption('--only-{0}'.format(group), action='store_true',
                          default=False,
@@ -62,12 +67,14 @@ def pytest_runtest_setup(item):
 
     for group in groups:
         only_flag = '--only-{0}'.format(group)
+        disable_flag = '--disable-{0}'.format(group)
         flag = '--{0}'.format(group)
 
         if item.config.getoption(only_flag):
             only_set = True
         elif getattr(item.obj, group, None):
-            if not item.config.getoption(flag):
+            if (item.config.getoption(disable_flag) or
+                    not item.config.getoption(flag)):
                 skip('{0} NOT enabled'.format(flag))
 
     if only_set: