Reduce cffi test size

test/extra/cffi_1.7_test.py

@@ -22,10 +22,15 @@ def install_and_test_cffi():
 
     # looks like clang 3.5 causes more errors like: 214 != -42 doing casts
     if os.environ.has_key("CC") and "clang" in os.environ["CC"]:
-        expected = [{ "failed": 20, "passed": 1659, "skipped": 73, "xfailed": 4}]
+        expected = [{'xfailed': 4, 'failed': 3, 'skipped': 10, 'passed': 539}]
     else:
-        expected = [{ "failed": 11, "passed": 1668, "skipped": 73, "xfailed": 4}]
-    run_test([PYTEST_EXE], cwd=CFFI_DIR, expected=expected)
+        expected = [{'xfailed': 4, 'failed': 2, 'skipped': 10, 'passed': 540}]
+
+    # Ideally we would run all the tests, but they take ~10min to run.
+    # dir_to_test = "."
+    # I just picked a subdirectory; I don't really know what it's testing.
+    dir_to_test = os.path.join(CFFI_DIR,  "testing", "cffi1")
+    run_test([PYTEST_EXE, dir_to_test], cwd=CFFI_DIR, expected=expected)
 
 create_virtenv(ENV_NAME, ["pytest==2.8.7", "py==1.4.31", "pycparser==2.14"], force_create = True)
 install_and_test_cffi()