Fail __MANY__ names with consecutive spaces.

lib/parsec/validate.py

@@ -71,8 +71,11 @@ def __init__(self, vtype, keys, value, exc=None):
 
 
 class IllegalItemError(ValidationError):
-    def __init__(self, keys, key):
-        self.msg = 'Illegal item: %s' % itemstr(keys, key)
+    def __init__(self, keys, key, msg=None):
+        if msg is not None:
+            self.msg = 'Illegal item (%s): %s' % (msg, itemstr(keys, key))
+        else:
+            self.msg = 'Illegal item: %s' % itemstr(keys, key)
 
 
 def validate(cfig, spec, keys=[]):
@@ -86,6 +89,9 @@ def validate(cfig, spec, keys=[]):
                 # as that of the __MANY__  item, i.e. dict or not-dict.
                 val_is_dict = isinstance(val, dict)
                 spc_is_dict = isinstance(spec['__MANY__'], dict)
+                if not val_is_dict and '  ' in key:
+                    # Item names shouldn't have consec. spaces (GitHub #2417).
+                    raise IllegalItemError(keys, key, 'consecutive spaces')
                 if (val_is_dict and spc_is_dict) or \
                         (not val_is_dict and not spc_is_dict):
                     speckey = '__MANY__'

tests/lib/bash/test_header

@@ -51,7 +51,7 @@
 #         Make sure that each line in FILE_TEST is present in FILE_CONTROL
 #         (stdin if FILE_CONTROL is "-" or missing).
 #     grep_ok PATTERN FILE
-#         Run "grep -q PATTERN FILE".
+#         Run "grep -q -e PATTERN FILE".
 #     count_ok PATTERN FILE COUNT
 #         Test that PATTERN occurs in exactly COUNT lines of FILE.
 #     exists_ok FILE

tests/validate/66-fail-consec-spaces.t

@@ -0,0 +1,41 @@
+#!/bin/bash
+# THIS FILE IS PART OF THE CYLC SUITE ENGINE.
+# Copyright (C) 2008-2017 NIWA
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Test consecutive spaces in a __MANY__ name fails validation (GitHub #2417).
+
+. $(dirname $0)/test_header
+set_test_number 2
+
+TEST_NAME=${TEST_NAME_BASE}-val
+cat > suite.rc <<__END__
+[scheduling]
+    [[dependencies]]
+        graph = task1
+ [runtime]
+     [[HPC]]
+        [[[job]]]
+           batch system = pbs
+        [[[directives]]]
+           -l select=1:ncpus=1:mem=5GB
+     [[task1]]
+        inherit = HPC
+        [[[directives]]]
+            -l  select=1:ncpus=24:mem=20GB  # ERROR!
+__END__
+run_fail $TEST_NAME cylc validate --debug -v suite.rc
+grep_ok "Illegal item (consecutive spaces):\
+ \[runtime\]\[task1\]\[directives\]-l  select" $TEST_NAME.stderr