Add checking of results text against embedded failure info.

Implementation is a bit ad-hoc

Fixes #49

tests/test_all.py

@@ -1,4 +1,5 @@
 """Test suite."""
+import ast
 import glob
 import os.path
 from os.path import join
@@ -61,6 +62,20 @@ def test_expected_failures(modpath, expected_failure):
  needle = ": %s " % code
  assert needle in out
 
+ with open(os.path.join(modpath, expected_failure)) as f:
+ doc = ast.get_docstring(
+ ast.parse(f.read(), expected_failure),
+ clean=True,
+ )
+
+ # keep "literal" lines, skip shell lines
+ result_check = "".join(
+ line + "\n" for line in doc.splitlines() if line.startswith(" RST")
+ )
+ if result_check:
+ modpath = os.path.join(modpath, "")
+ assert out.replace(modpath, " ") == result_check
+
 
 def test_expected_successes(modpath):
  """Verify the positive test cases (expected successes)."""