Fix up testsuite for W504

pycodestyle.py

@@ -1184,16 +1184,15 @@ def break_before_binary_operator(logical_line, tokens):
     W503: (width == 0\n + height == 0)
     W503: (width == 0\n and height == 0)
-    Okay: (width == 0 +\n height == 0)
+    W503: var = (1\n       & ~2)
+    W503: var = (1\n       / -2)
+    W503: var = (1\n       + -1\n       + -2)
     Okay: foo(\n    -x)
     Okay: foo(x\n    [])
     Okay: x = '''\n''' + ''
     Okay: foo(x,\n    -y)
     Okay: foo(x,  # comment\n    -y)
-    Okay: var = (1 &\n       ~2)
-    Okay: var = (1 /\n       -2)
-    Okay: var = (1 +\n       -1 +\n       -2)
     """
     for context in _break_around_binary_operators(tokens):
         (token_type, text, previous_token_type, previous_text,
@@ -1215,25 +1214,26 @@ def break_after_binary_operator(logical_line, tokens):
     W504: (width == 0 +\n height == 0)
     W504: (width == 0 and\n height == 0)
-    Okay: (width == 0\n + height == 0)
+    W504: var = (1 &\n       ~2)
     Okay: foo(\n    -x)
     Okay: foo(x\n    [])
     Okay: x = '''\n''' + ''
     Okay: x = '' + '''\n'''
     Okay: foo(x,\n    -y)
     Okay: foo(x,  # comment\n    -y)
-    Okay: var = (1\n       & ~2)
-    Okay: var = (1\n       / -2)
-    Okay: var = (1\n       + -1\n       + -2)
+
+    The following should be W504 but unary_context is tricky with these
+    Okay: var = (1 /\n       -2)
+    Okay: var = (1 +\n       -1 +\n       -2)
     """
     for context in _break_around_binary_operators(tokens):
         (token_type, text, previous_token_type, previous_text,
          line_break, unary_context, start) = context
-        if (_is_binary_operator(previous_token_type, previous_text)
-                and line_break
-                and not unary_context
-                and not _is_binary_operator(token_type, text)):
+        if (_is_binary_operator(previous_token_type, previous_text) and
+                line_break and
+                not unary_context and
+                not _is_binary_operator(token_type, text)):
             error_pos = (start[0] - 1, start[1])
             yield error_pos, "W504 line break after binary operator"

setup.cfg

@@ -6,5 +6,5 @@ license_file = LICENSE
 [pycodestyle]
 select =
-ignore = E226,E24
+ignore = E226,E24,W504
 max_line_length = 79

testsuite/E12not.py

@@ -16,12 +16,11 @@ if x == 2 \
         or y > 1 \
         or x == 3:
     pass
-
-
+#: W503
 if (foo == bar
         and baz == frop):
     pass
-
+#: W503
 if (
     foo == bar
     and baz == frop
@@ -108,7 +107,7 @@ sat = 'AAA'    \
       'BBB'    \
       'iii'    \
       'CCC'
-
+#: W504 W504
 abricot = (3 +
            4 +
            5 + 6)
@@ -137,8 +136,7 @@ def long_function_name(
         var_one, var_two, var_three,
         var_four):
     print(var_one)
-
-
+#: W504
 if ((row < 0 or self.moduleCount <= row or
      col < 0 or self.moduleCount <= col)):
     raise Exception("%s,%s - %s" % (row, col, self.moduleCount))
@@ -183,23 +181,23 @@ if bar:
         "to match that of the opening "
         "bracket's line"
     )
-#
+#: W504
 # you want vertical alignment, so use a parens
 if ((foo.bar("baz") and
      foo.bar("frop")
      )):
     print "yes"
-
+#: W504
 # also ok, but starting to look like LISP
 if ((foo.bar("baz") and
      foo.bar("frop"))):
     print "yes"
-
+#: W504
 if (a == 2 or
     b == "abc def ghi"
          "jkl mno"):
     return True
-
+#: W504
 if (a == 2 or
     b == """abc def ghi
 jkl mno"""):
@@ -223,22 +221,19 @@ print 'l.{line}\t{pos}\t{name}\t{text}'.format(
 print('%-7d %s per second (%d total)' % (
       options.counters[key] / elapsed, key,
       options.counters[key]))
-
-
+#: W504
 if os.path.exists(os.path.join(path, PEP8_BIN)):
     cmd = ([os.path.join(path, PEP8_BIN)] +
            self._pep8_options(targetfile))
-
-
+#: W504
 fixed = (re.sub(r'\t+', ' ', target[c::-1], 1)[::-1] +
          target[c + 1:])
-
+#: W504
 fixed = (
     re.sub(r'\t+', ' ', target[c::-1], 1)[::-1] +
     target[c + 1:]
 )
-
-
+#: W504
 if foo is None and bar is "frop" and \
         blah == 'yeah':
     blah = 'yeahnah'

testsuite/W19.py

@@ -7,7 +7,7 @@ if False:
 #: W191
 y = x == 2 \
 	or x == 3
-#: E101 W191
+#: E101 W191 W504
 if (
         x == (
             3
@@ -26,11 +26,11 @@ if x == 2 \
 	pass
 #:
-#: E101 W191
+#: E101 W191 W504
 if (foo == bar and
         baz == frop):
 	pass
-#: E101 W191
+#: E101 W191 W504
 if (
     foo == bar and
     baz == frop
@@ -52,7 +52,7 @@ def long_function_name(
         var_one, var_two, var_three,
         var_four):
 	print(var_one)
-#: E101 W191
+#: E101 W191 W504
 if ((row < 0 or self.moduleCount <= row or
      col < 0 or self.moduleCount <= col)):
 	raise Exception("%s,%s - %s" % (row, col, self.moduleCount))
@@ -65,23 +65,23 @@ if bar:
 	    "bracket's line"
 	)
 #
-#: E101 W191
+#: E101 W191 W504
 # you want vertical alignment, so use a parens
 if ((foo.bar("baz") and
      foo.bar("frop")
      )):
 	print "yes"
-#: E101 W191
+#: E101 W191 W504
 # also ok, but starting to look like LISP
 if ((foo.bar("baz") and
      foo.bar("frop"))):
 	print "yes"
-#: E101 W191
+#: E101 W191 W504
 if (a == 2 or
     b == "abc def ghi"
          "jkl mno"):
 	return True
-#: E101 W191
+#: E101 W191 W504
 if (a == 2 or
     b == """abc def ghi
 jkl mno"""):
@@ -93,7 +93,7 @@ if length > options.max_line_length:
 #
-#: E101 W191 W191
+#: E101 W191 W191 W504
 if os.path.exists(os.path.join(path, PEP8_BIN)):
 	cmd = ([os.path.join(path, PEP8_BIN)] +
 	       self._pep8_options(targetfile))

testsuite/test_all.py

@@ -43,7 +43,7 @@ class PycodestyleTestCase(unittest.TestCase):
                  os.path.join(ROOT_DIR, 'setup.py')]
         report = self._style.init_report(pycodestyle.StandardReport)
         report = self._style.check_files(files)
-        self.assertFalse(report.total_errors,
+        self.assertEqual(list(report.messages.keys()), ['W504'],
                          msg='Failures: %s' % report.messages)

testsuite/test_api.py

@@ -166,7 +166,7 @@ class APITestCase(unittest.TestCase):
         self.assertEqual(pep8style.options.filename, ['*.py'])
         self.assertEqual(pep8style.options.format, 'default')
         self.assertEqual(pep8style.options.select, ())
-        self.assertEqual(pep8style.options.ignore, ('E226', 'E24'))
+        self.assertEqual(pep8style.options.ignore, ('E226', 'E24', 'W504'))
         self.assertEqual(pep8style.options.max_line_length, 79)
     def test_styleguide_ignore_code(self):
@@ -182,7 +182,7 @@ class APITestCase(unittest.TestCase):
         self.assertEqual(options.select, ())
         self.assertEqual(
             options.ignore,
-            ('E121', 'E123', 'E126', 'E226', 'E24', 'E704', 'W503')
+            ('E121', 'E123', 'E126', 'E226', 'E24', 'E704', 'W503', 'W504')
         )
         options = parse_argv('--doctest').options