Implement the FIXME that ends an user action with a semicolon

[bison.git] / tests / input.at

diff --git a/tests/input.at b/tests/input.at
index 9778078a3f1a940bc1097a2a5a58a5b22bbbf920..57f3b6410145fc567811524007e0e425e4e8941d 100644 (file)
--- a/tests/input.at
+++ b/tests/input.at
@@ -1,5 +1,5 @@
 # Checking the Bison scanner.                    -*- Autotest -*-
 # Checking the Bison scanner.                    -*- Autotest -*-

-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,

 # Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify


@@ -32,7 +32,7 @@ exp: { $$ = $1 ; };
 exp: { @$ = @1 ; };
 ]])
 
 exp: { @$ = @1 ; };
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:2.13-14: integer out of range: `$1'
 input.y:3.13-14: integer out of range: `@1'
 ]])
 [[input.y:2.13-14: integer out of range: `$1'
 input.y:3.13-14: integer out of range: `@1'
 ]])


@@ -57,7 +57,7 @@ exp: foo { $$; } foo { $2; } foo
    ;
 ]])
 
    ;
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type
 input.y:5.24-25: $2 of `exp' has no declared type
 input.y:5.6-32: warning: type clash on default action: <bar> != <>
 [[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type
 input.y:5.24-25: $2 of `exp' has no declared type
 input.y:5.6-32: warning: type clash on default action: <bar> != <>


@@ -97,16 +97,16 @@ m4_ifval($1, [
 ], [_AT_UNUSED_VALUES_DECLARATIONS
 ])[[%%
 start:
 ], [_AT_UNUSED_VALUES_DECLARATIONS
 ])[[%%
 start:

-  'a' a { $]2[ } | 'b' b { $]2[ } | 'c' c { $]2[ } | 'd' d { $]2[ } | 'e' e { $]2[ }
-| 'f' f { $]2[ } | 'g' g { $]2[ } | 'h' h { $]2[ } | 'i' i { $]2[ } | 'j' j { $]2[ }
-| 'k' k { $]2[ } | 'l' l { $]2[ }
+  'a' a { $]2[; } | 'b' b { $]2[; } | 'c' c { $]2[; } | 'd' d { $]2[; }
+| 'e' e { $]2[; } | 'f' f { $]2[; } | 'g' g { $]2[; } | 'h' h { $]2[; }
+| 'i' i { $]2[; } | 'j' j { $]2[; } | 'k' k { $]2[; } | 'l' l { $]2[; }

 ;
 
 a: INT | INT { } INT { } INT { };
 b: INT | /* empty */;
 ;
 
 a: INT | INT { } INT { } INT { };
 b: INT | /* empty */;

-c: INT | INT { $]1[ } INT { $<integer>2 } INT { $<integer>4 };
-d: INT | INT { } INT { $]1[ } INT { $<integer>2 };
-e: INT | INT { } INT {  } INT { $]1[ };
+c: INT | INT { $]1[; } INT { $<integer>2; } INT { $<integer>4; };
+d: INT | INT { } INT { $]1[; } INT { $<integer>2; };
+e: INT | INT { } INT {  } INT { $]1[; };

 f: INT | INT { } INT {  } INT { $]$[ = $]1[ + $]3[ + $]5[; };
 g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
 f: INT | INT { } INT {  } INT { $]$[ = $]1[ + $]3[ + $]5[; };
 g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
 h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };


@@ -117,24 +117,24 @@ l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<
 _AT_UNUSED_VALUES_DECLARATIONS])
 )
 
 _AT_UNUSED_VALUES_DECLARATIONS])
 )
 

-AT_CHECK([bison]m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [],
+AT_BISON_CHECK(m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [],

 [[input.y:11.10-32: warning: unset value: $]$[
 input.y:11.10-32: warning: unused value: $]1[
 input.y:11.10-32: warning: unused value: $]3[
 input.y:11.10-32: warning: unused value: $]5[
 input.y:12.9: warning: empty rule for typed nonterminal, and no action
 [[input.y:11.10-32: warning: unset value: $]$[
 input.y:11.10-32: warning: unused value: $]1[
 input.y:11.10-32: warning: unused value: $]3[
 input.y:11.10-32: warning: unused value: $]5[
 input.y:12.9: warning: empty rule for typed nonterminal, and no action

-]]m4_ifval($2, [[[input.y:13.14-19: warning: unset value: $$
-input.y:13.25-39: warning: unset value: $$
-]]])[[input.y:13.10-59: warning: unset value: $]$[
-input.y:13.10-59: warning: unused value: $]3[
-input.y:13.10-59: warning: unused value: $]5[
+]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $$
+input.y:13.26-41: warning: unset value: $$
+]]])[[input.y:13.10-62: warning: unset value: $]$[
+input.y:13.10-62: warning: unused value: $]3[
+input.y:13.10-62: warning: unused value: $]5[

 ]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
 ]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$

-]]])[[input.y:14.10-47: warning: unset value: $]$[
-input.y:14.10-47: warning: unused value: $]3[
-input.y:14.10-47: warning: unused value: $]5[
-input.y:15.10-36: warning: unset value: $]$[
-input.y:15.10-36: warning: unused value: $]3[
-input.y:15.10-36: warning: unused value: $]5[
+]]])[[input.y:14.10-49: warning: unset value: $]$[
+input.y:14.10-49: warning: unused value: $]3[
+input.y:14.10-49: warning: unused value: $]5[
+input.y:15.10-37: warning: unset value: $]$[
+input.y:15.10-37: warning: unused value: $]3[
+input.y:15.10-37: warning: unused value: $]5[

 input.y:17.10-58: warning: unset value: $]$[
 input.y:17.10-58: warning: unused value: $]1[
 ]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
 input.y:17.10-58: warning: unset value: $]$[
 input.y:17.10-58: warning: unused value: $]1[
 ]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[


@@ -204,7 +204,7 @@ start: ;
 %printer { destroy ($$); } <>;
 ]])
 
 %printer { destroy ($$); } <>;
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:1.13-29: redeclaration for default tagged %destructor
 input.y:1.13-29: previous declaration
 input.y:2.10-26: redeclaration for default tagged %printer
 [[input.y:1.13-29: redeclaration for default tagged %destructor
 input.y:1.13-29: previous declaration
 input.y:2.10-26: redeclaration for default tagged %printer


@@ -255,7 +255,7 @@ start: ;
 %printer { destroy ($$); } <field2> <field1>;
 ]])
 
 %printer { destroy ($$); } <field2> <field1>;
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:4.13-29: %destructor redeclaration for <field1>
 input.y:1.13-29: previous declaration
 input.y:4.13-29: %destructor redeclaration for <field1>
 [[input.y:4.13-29: %destructor redeclaration for <field1>
 input.y:1.13-29: previous declaration
 input.y:4.13-29: %destructor redeclaration for <field1>


@@ -294,7 +294,7 @@ end: { } ;
 tagged: { } ;
 ]])
 
 tagged: { } ;
 ]])
 

-AT_CHECK([bison input.y], [0], [],
+AT_BISON_CHECK([input.y], [0], [],

 [[input.y:6.8-45: warning: unset value: $$
 input.y:6.8-45: warning: unused value: $2
 input.y:7.6-8: warning: unset value: $$
 [[input.y:6.8-45: warning: unset value: $$
 input.y:6.8-45: warning: unused value: $2
 input.y:7.6-8: warning: unset value: $$


@@ -311,7 +311,7 @@ end: { } ;
 tagged: { } ;
 ]])
 
 tagged: { } ;
 ]])
 

-AT_CHECK([bison input.y], [0], [],
+AT_BISON_CHECK([input.y], [0], [],

 [[input.y:6.8-45: warning: unused value: $4
 input.y:8.9-11: warning: unset value: $$
 ]])
 [[input.y:6.8-45: warning: unused value: $4
 input.y:8.9-11: warning: unset value: $$
 ]])


@@ -335,7 +335,7 @@ start: end end { $1; } ;
 end: { }  ;
 ]])
 
 end: { }  ;
 ]])
 

-AT_CHECK([bison input.y], [0], [],
+AT_BISON_CHECK([input.y], [0], [],

 [[input.y:6.8-22: warning: unset value: $$
 input.y:6.8-22: warning: unused value: $2
 input.y:7.6-8: warning: unset value: $$
 [[input.y:6.8-22: warning: unset value: $$
 input.y:6.8-22: warning: unused value: $2
 input.y:7.6-8: warning: unset value: $$


@@ -367,7 +367,7 @@ AT_DATA([input.y],
 exp: foo;
 ]])
 
 exp: foo;
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:8.7-11: %type redeclaration for foo
 input.y:3.7-11: previous declaration
 input.y:10.13-17: %destructor redeclaration for foo
 [[input.y:8.7-11: %type redeclaration for foo
 input.y:3.7-11: previous declaration
 input.y:10.13-17: %destructor redeclaration for foo


@@ -393,7 +393,7 @@ AT_SETUP([Torturing the Scanner])
 
 
 AT_DATA([input.y], [])
 
 
 AT_DATA([input.y], [])

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:1.1: syntax error, unexpected end of file
 ]])
 
 [[input.y:1.1: syntax error, unexpected end of file
 ]])
 


@@ -401,7 +401,7 @@ AT_CHECK([bison input.y], [1], [],
 AT_DATA([input.y],
 [{}
 ])
 AT_DATA([input.y],
 [{}
 ])

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:1.1-2: syntax error, unexpected {...}
 ]])
 
 [[input.y:1.1-2: syntax error, unexpected {...}
 ]])
 


@@ -537,7 +537,7 @@ main (void)
 }
 ]])
 
 }
 ]])
 

-AT_CHECK([bison -d -v -o input.c input.y])
+AT_BISON_CHECK([-d -v -o input.c input.y])

 AT_COMPILE([input.o], [-c input.c])
 AT_COMPILE([main.o], [-c main.c])
 AT_COMPILE([input], [input.o main.o])
 AT_COMPILE([input.o], [-c input.c])
 AT_COMPILE([main.o], [-c main.c])
 AT_COMPILE([input], [input.o main.o])


@@ -568,7 +568,7 @@ exp: "MY TOKEN";
 %%
 ]])
 
 %%
 ]])
 

-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -584,7 +584,7 @@ AT_DATA_GRAMMAR([input.y],
 %%
 empty_file:;
 ]])
 %%
 empty_file:;
 ]])

-AT_CHECK([bison -o input.c input.y], $2, [], ignore)
+AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)

 AT_CLEANUP
 ])
 
 AT_CLEANUP
 ])
 


@@ -610,7 +610,7 @@ start: 'a';
 %%
 ]])
 
 %%
 ]])
 

-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -648,7 +648,7 @@ start: ;
 %destructor { free ($$)
 ]])
 
 %destructor { free ($$)
 ]])
 

-AT_CHECK([bison -o input.c input.y], 1, [],
+AT_BISON_CHECK([-o input.c input.y], 1, [],

 [[input.y:1.10-2.0: missing `"' at end of line
 input.y:4.10-5.0: missing `'' at end of line
 input.y:14.11-15.0: missing `'' at end of line
 [[input.y:1.10-2.0: missing `"' at end of line
 input.y:4.10-5.0: missing `'' at end of line
 input.y:14.11-15.0: missing `'' at end of line


@@ -676,7 +676,7 @@ start: false_start ;
 %start start;
 ]])
 
 %start start;
 ]])
 

-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -695,7 +695,7 @@ start: PREC %prec PREC ;
 PREC: ;
 ]])
 
 PREC: ;
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:3.1-4: rule given for PREC, which is a token
 ]])
 
 [[input.y:3.1-4: rule given for PREC, which is a token
 ]])
 


@@ -716,7 +716,7 @@ AT_DATA([input-c.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison input-c.y]], [0], [],
+AT_BISON_CHECK([[input-c.y]], [0], [],

 [[input-c.y:1.7: warning: %code qualifier `q' is not used
 input-c.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c.y:3.7-9: warning: %code qualifier `bad' is not used
 [[input-c.y:1.7: warning: %code qualifier `q' is not used
 input-c.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c.y:3.7-9: warning: %code qualifier `bad' is not used


@@ -730,7 +730,7 @@ AT_DATA([input-c-glr.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison input-c-glr.y]], [0], [],
+AT_BISON_CHECK([[input-c-glr.y]], [0], [],

 [[input-c-glr.y:1.7: warning: %code qualifier `q' is not used
 input-c-glr.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c-glr.y:3.8-10: warning: %code qualifier `bad' is not used
 [[input-c-glr.y:1.7: warning: %code qualifier `q' is not used
 input-c-glr.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c-glr.y:3.8-10: warning: %code qualifier `bad' is not used


@@ -743,7 +743,7 @@ AT_DATA([input-c++.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison input-c++.y]], [0], [],
+AT_BISON_CHECK([[input-c++.y]], [0], [],

 [[input-c++.y:1.7: warning: %code qualifier `q' is not used
 input-c++.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c++.y:3.8: warning: %code qualifier `q' is not used
 [[input-c++.y:1.7: warning: %code qualifier `q' is not used
 input-c++.y:2.7-9: warning: %code qualifier `bad' is not used
 input-c++.y:3.8: warning: %code qualifier `q' is not used


@@ -756,7 +756,7 @@ AT_DATA([input-c++-glr.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison input-c++-glr.y]], [0], [],
+AT_BISON_CHECK([[input-c++-glr.y]], [0], [],

 [[input-c++-glr.y:1.7-9: warning: %code qualifier `bad' is not used
 input-c++-glr.y:2.7: warning: %code qualifier `q' is not used
 input-c++-glr.y:3.7: warning: %code qualifier `q' is not used
 [[input-c++-glr.y:1.7-9: warning: %code qualifier `bad' is not used
 input-c++-glr.y:2.7: warning: %code qualifier `q' is not used
 input-c++-glr.y:3.7: warning: %code qualifier `q' is not used


@@ -769,7 +769,7 @@ AT_DATA([special-char-@@.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison special-char-@@.y]], [0], [],
+AT_BISON_CHECK([[special-char-@@.y]], [0], [],

 [[special-char-@@.y:1.7-9: warning: %code qualifier `bad' is not used
 special-char-@@.y:2.7: warning: %code qualifier `q' is not used
 special-char-@@.y:3.7: warning: %code qualifier `q' is not used
 [[special-char-@@.y:1.7-9: warning: %code qualifier `bad' is not used
 special-char-@@.y:2.7: warning: %code qualifier `q' is not used
 special-char-@@.y:3.7: warning: %code qualifier `q' is not used


@@ -782,7 +782,7 @@ AT_DATA([special-char-@:>@.y],
 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_CHECK([[bison special-char-@:>@.y]], [0], [],
+AT_BISON_CHECK([[special-char-@:>@.y]], [0], [],

 [[special-char-@:>@.y:1.7-9: warning: %code qualifier `bad' is not used
 special-char-@:>@.y:2.7: warning: %code qualifier `q' is not used
 special-char-@:>@.y:3.7: warning: %code qualifier `q' is not used
 [[special-char-@:>@.y:1.7-9: warning: %code qualifier `bad' is not used
 special-char-@:>@.y:2.7: warning: %code qualifier `q' is not used
 special-char-@:>@.y:3.7: warning: %code qualifier `q' is not used


@@ -807,7 +807,7 @@ AT_DATA([input.y],
 start: ;
 ]])
 
 start: ;
 ]])
 

-AT_CHECK([[bison input.y]], [0], [],
+AT_BISON_CHECK([[input.y]], [0], [],

 [[input.y:2.9-11: warning: %define variable `var' redefined
 input.y:1.9-11: warning: previous definition
 input.y:3.10-12: warning: %define variable `var' redefined
 [[input.y:2.9-11: warning: %define variable `var' redefined
 input.y:1.9-11: warning: previous definition
 input.y:3.10-12: warning: %define variable `var' redefined


@@ -821,6 +821,32 @@ input.y:5.9-16: warning: %define variable `special2' is not used
 
 AT_CLEANUP
 
 
 AT_CLEANUP
 

+
+## ------------------- ##
+## %define, --define.  ##
+## ------------------- ##
+
+AT_SETUP([%define, --define])
+
+AT_DATA([input.y],
+[[%define var "value1"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y -DFOO -DFOO -Dvar=value]], [0], [],
+[[<command line>:4: warning: %define variable `FOO' redefined
+<command line>:3: warning: previous definition
+input.y:1.9-11: warning: %define variable `var' redefined
+<command line>:5: warning: previous definition
+<command line>:3: warning: %define variable `FOO' is not used
+<command line>:4: warning: %define variable `FOO' is not used
+<command line>:5: warning: %define variable `var' is not used
+input.y:1.9-11: warning: %define variable `var' is not used
+]])
+
+AT_CLEANUP
+

 ## --------------------------- ##
 ## %define Boolean variables.  ##
 ## --------------------------- ##
 ## --------------------------- ##
 ## %define Boolean variables.  ##
 ## --------------------------- ##


@@ -835,7 +861,7 @@ AT_DATA([Input.y],
 start: ;
 ]])
 
 start: ;
 ]])
 

-AT_CHECK([[bison Input.y]], [1], [],
+AT_BISON_CHECK([[Input.y]], [1], [],

 [[Input.y:2.9-14: invalid value for %define Boolean variable `public'
 ]])
 
 [[Input.y:2.9-14: invalid value for %define Boolean variable `public'
 ]])
 


@@ -848,13 +874,95 @@ AT_CLEANUP
 AT_SETUP([[%define enum variables]])
 
 AT_DATA([[input.y]],
 AT_SETUP([[%define enum variables]])
 
 AT_DATA([[input.y]],

-[[%define push_pull "neither"
+[[%define api.push_pull "neither"

 %%
 start: ;
 ]])
 
 %%
 start: ;
 ]])
 

-AT_CHECK([[bison input.y]], [1], [],
-[[input.y:1.9-17: invalid value for %define variable `push_pull': `neither'
+AT_BISON_CHECK([[input.y]], [1], [],
+[[input.y:1.9-21: invalid value for %define variable `api.push_pull': `neither'

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP

+
+## ------------------------- ##
+## Unused %define api.pure.  ##
+## ------------------------- ##
+
+AT_SETUP([[Unused %define api.pure]])
+
+# AT_CHECK_API_PURE(DECLS, VALUE)
+# -------------------------------
+# Make sure Bison reports that `%define api.pure VALUE' is unused when DECLS
+# are specified.
+m4_define([AT_CHECK_API_PURE],
+[
+AT_DATA([[input.y]],
+[[%define api.pure ]$2[
+]$1[
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [0], [],
+[[input.y:1.9-16: warning: %define variable `api.pure' is not used
+]])
+])
+
+AT_CHECK_API_PURE([[%language "c++" %defines]], [[]])
+AT_CHECK_API_PURE([[%language "c++" %defines]], [["false"]])
+AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[""]])
+AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [["false"]])
+AT_CHECK_API_PURE([[%language "java"]], [["true"]])
+AT_CHECK_API_PURE([[%language "java"]], [["false"]])
+
+AT_CLEANUP
+
+## -------------------------------- ##
+## C++ namespace reference errors.  ##
+## -------------------------------- ##
+
+AT_SETUP([[C++ namespace reference errors]])
+
+# AT_CHECK_NAMESPACE_ERROR(NAMESPACE-DECL, ERROR, [ERROR], ...)
+# -------------------------------------------------------------
+# Make sure Bison reports all ERROR's for %define namespace "NAMESPACE-DECL".
+m4_define([AT_CHECK_NAMESPACE_ERROR],
+[
+AT_DATA([[input.y]],
+[[%language "C++"
+%defines
+%define namespace "]$1["
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [1], [],
+[m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
+[[input.y:3.9-17: ]b4_arg[
+]])])
+])
+
+AT_CHECK_NAMESPACE_ERROR([[]],
+                         [[namespace reference is empty]])
+AT_CHECK_NAMESPACE_ERROR([[                            ]],
+                         [[namespace reference is empty]])
+AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::       ::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[::::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[:: ::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar::  ::]],
+                         [[namespace reference has consecutive "::"]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar::]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar::  ]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[::]],
+                         [[namespace reference has a trailing "::"]])
+
+AT_CLEANUP