0.8alpha.0.4:

[sbcl.git] / tests / type.pure.lisp

diff --git a/tests/type.pure.lisp b/tests/type.pure.lisp
index 8026733..b97a0e9 100644 (file)
--- a/tests/type.pure.lisp
+++ b/tests/type.pure.lisp
@@ -169,6 +169,36 @@
                 (subtypep '(function)
                           '(function (t &rest t))))
                '(nil t)))
-#+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))))
+
+(assert (not (nth-value 1 (subtypep '(and null some-unknown-type)
+                                    'another-unknown-type))))