Check for the right number of bindings in pattern matching

[scheme.git] / tests.scm

diff --git a/tests.scm b/tests.scm
index bcd878a11dfccb8368d930931d5ad00721d8c626..fa5b195e1b2575c4d14f9e385c854aad53dd0823 100644 (file)
--- a/tests.scm
+++ b/tests.scm
@@ -7,7 +7,13 @@
           (format "test failed:\nexpected: ~a\nactual:   ~a"
                   expected actual))))
 
-(define (test . xs) (apply test-f (cons equal? xs)))
+(define-syntax test
+  (syntax-rules ()
+    ((_ a e)
+     (begin
+       (display (quote a))
+       (newline)
+       (test-f equal? a e)))))
 
 (define-syntax test-types
   (syntax-rules ()
@@ -30,7 +36,7 @@
   (display prog)
   (newline)
   (compile-to-binary prog "/tmp/test-prog" host-os)
-  (test (system "/tmp/test-prog") exit-code))
+  (test-f equal? (system "/tmp/test-prog") exit-code))
 
 (define (test-expr prog exit-code)
   (test-prog (list prog) exit-code))
@@ -41,7 +47,24 @@
   (compile-to-binary prog "/tmp/test-prog" host-os)
   (system "/tmp/test-prog > /tmp/test-output.txt")
   (let ((str (read-file "/tmp/test-output.txt")))
-    (test str output)))
+    (test-f equal? str output)))
+
+(define-syntax test-exception
+  (syntax-rules ()
+    ((_ f)
+     (begin
+       (display (quote f))
+       (newline)
+       (call/cc (lambda (k)
+                 (with-exception-handler
+                  (lambda (x)
+                    (when (eqv? 'no-exception x)
+                      (error #f "test failed: no exception thrown"))
+                    (k))
+                  (lambda ()
+                    (begin
+                      f
+                      (raise 'no-exception))))))))))
 
 (test (data-tors '(A . ((foo Int Bool)
                        (bar Bool))))
@@ -61,11 +84,19 @@
        (bar . (abs Bool A))
        (bar~0 . (abs A Bool))))
 
-(test (expand-pattern-matches '(let ([(foo x y) (foo 123 234)] [z (f 123)]) x))
-      '(let ([x (foo~0 (foo 123 234))]
+(test (expand-pattern-matches
+       '((data A (foo Int Int))
+        (let ([(foo x y) (foo 123 234)] [z (f 123)]) x)))
+      '((data A (foo Int Int))
+       (let ([x (foo~0 (foo 123 234))]
              [y (foo~1 (foo 123 234))]
              [z (f 123)])
-        x))
+         x)))
+
+(test-exception
+ (expand-pattern-matches '((data A (foo Int Int))
+                          (let ([(foo x) (foo 123 234)])
+                            x))))
 
 (test-types (typecheck '((lambda (x) (+ ((lambda (y) (x y 3)) 5) 2))))
            '(abs (abs Int (abs Int Int)) Int))