X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=tests%2Ftype.pure.lisp;h=c4b282ab3644c97871730153215466502a366bf8;hb=50f728671defadb8f7b1e8691c984cb0e6aba17c;hp=80267338dc8394a5e939d4cf3c2b32fa42fe2ee7;hpb=4704aaa73743e936db4ffaeeb4331b33d58a1acf;p=sbcl.git

diff --git a/tests/type.pure.lisp b/tests/type.pure.lisp
index 8026733..c4b282a 100644
--- a/tests/type.pure.lisp
+++ b/tests/type.pure.lisp
@@ -172,3 +172,31 @@
 #+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)))
+;;; Likewise, these are allowed to return NIL, NIL, but shouldn't
+;;; return NIL, T:
+(assert (subtypep t '(or real (not real))))
+(assert (subtypep t '(or keyword (not keyword))))
+(assert (subtypep '(and cons (not (cons symbol integer)))
+		  '(or (cons (not symbol) *) (cons * (not integer)))))
+(assert (subtypep '(or (cons (not symbol) *) (cons * (not integer)))
+		  '(and cons (not (cons symbol integer)))))
+(assert (subtypep '(or (eql 0) (rational (0) 10))
+		  '(rational 0 10)))
+(assert (subtypep '(rational 0 10)
+		  '(or (eql 0) (rational (0) 10))))
+;;; Until sbcl-0.7.13.7, union of CONS types when the CDRs were the
+;;; same type gave exceedingly wrong results
+(assert (null (subtypep '(or (cons fixnum single-float)
+			     (cons bignum single-float))
+			'(cons single-float single-float))))
+(assert (subtypep '(cons integer single-float)
+		  '(or (cons fixnum single-float) (cons bignum single-float))))