X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Ftype.pure.lisp;h=8b4d624e8116643edb27d55e51441cb364ea54a6;hb=424a1607654dc2fab254b23aa494a7fb50d4f6e0;hp=a7708352c2f0f28161bd5112a967880c6564202e;hpb=ab6263cd50869be699c7afea271d626f83a5a27d;p=sbcl.git

diff --git a/tests/type.pure.lisp b/tests/type.pure.lisp
index a770835..8b4d624 100644
--- a/tests/type.pure.lisp
+++ b/tests/type.pure.lisp
@@ -33,7 +33,8 @@
 ;;; SINGLE-FLOAT DOUBLE-FLOAT RATIONAL)".  We ideally want all of the
 ;;; defined-by-ANSI types to unparse as themselves or at least
 ;;; something similar (e.g. CHARACTER can unparse to BASE-CHAR, since
-;;; the types are equivalent in current SBCL).
+;;; the types are equivalent in current SBCL, and EXTENDED-CHAR can
+;;; unparse to NIL, since there are no EXTENDED-CHARs currently).
 (let ((standard-types '(;; from table 4-2 in section 4.2.3 in the
 			;; CLHS.
 			arithmetic-error
@@ -117,17 +118,7 @@
 			error
 			readtable
 			two-way-stream
-			;; This one's hard: (AND BASE-CHAR (NOT BASE-CHAR))
-			;;
-			;; This is because it looks like
-			;;   (AND CHARACTER (NOT BASE-CHAR))
-			;; but CHARACTER is equivalent to
-			;; BASE-CHAR. So if we fix intersection of
-			;; obviously disjoint types and then do (the
-			;; extended-char foo), we'll get back FOO is
-			;; not a NIL. -- CSR, 2002-09-16.
-			;;
-			;; extended-char
+			extended-char
 			real
 			type-error                 
 			file-error
@@ -181,3 +172,12 @@
 #+nil
 (assert (and (subtypep 'function '(function))
              (subtypep '(function) 'function)))
+
+;;; Absent any exciting generalizations of |R, the type RATIONAL is
+;;; partitioned by RATIO and INTEGER.  Ensure that the type system
+;;; knows about this.  [ the type system is permitted to return NIL,
+;;; NIL for these, so if future maintenance breaks these tests that
+;;; way, that's fine.  What the SUBTYPEP calls are _not_ allowed to
+;;; return is NIL, T, because that's completely wrong. ]
+(assert (subtypep '(or integer ratio) 'rational))
+(assert (subtypep 'rational '(or integer ratio)))