tests: Catch expressions that don't raise exceptions.

Many tests that use guard to catch and ensure that certain conditions
are raised actually leak and let through cases where the expressions
result in a truthy value.

* tests/ccwl.scm ("input, when passed more than one positional
argument, must raise a &ccwl-violation condition", "input, when passed
an unrecognized keyword, must raise a &ccwl-violation condition",
"input, when passed multiple arguments to a unary keyword, must raise
a &ccwl-violation condition", "output, when passed more than one
positional argument, must raise a &ccwl-violation condition", "output,
when passed an unrecognized keyword, must raise a &ccwl-violation
condition", "output, when passed multiple arguments to a unary
keyword, must raise a &ccwl-violation condition", "command, when
passed positional arguments, must raise a &ccwl-violation condition",
"command, when passed an unrecognized keyword, must raise a
&ccwl-violation condition", "command, when passed multiple arguments
to a unary keyword, must raise a &ccwl-violation condition"): Catch
expressions that don't raise exceptions.

1 files changed, 29 insertions, 20 deletions

diff --git a/tests/ccwl.scm b/tests/ccwl.scm
index 4f10450..219e3f7 100644
--- a/tests/ccwl.scm
+++ b/tests/ccwl.scm
@@ -58,58 +58,67 @@
 (test-assert "input, when passed more than one positional argument, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (input #'(message string))))
+    (begin (input #'(message string))
+           #f)))
 
 (test-assert "input, when passed an unrecognized keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (input #'(message #:foo string))))
+    (begin (input #'(message #:foo string))
+           #f)))
 
 (test-assert "input, when passed multiple arguments to a unary keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (input #'(message #:type int string))))
+    (begin (input #'(message #:type int string))
+           #f)))
 
 (test-assert "output, when passed more than one positional argument, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (output #'(message string))))
+    (begin (output #'(message string))
+           #f)))
 
 (test-assert "output, when passed an unrecognized keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (output #'(message #:foo string))))
+    (begin (output #'(message #:foo string))
+           #f)))
 
 (test-assert "output, when passed multiple arguments to a unary keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (output #'(message #:type int string))))
+    (begin (output #'(message #:type int string))
+           #f)))
 
 (test-assert "command, when passed positional arguments, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (macroexpand
-     '(command foo
-               #:inputs (message #:type string)
-               #:run "echo" message
-               #:outputs (stdout #:type stdout)))))
+    (begin (macroexpand
+            '(command foo
+                      #:inputs (message #:type string)
+                      #:run "echo" message
+                      #:outputs (stdout #:type stdout)))
+           #f)))
 
 (test-assert "command, when passed an unrecognized keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (macroexpand
-     '(command #:foo (message #:type string)
-               #:run "echo" message
-               #:outputs (stdout #:type stdout)))))
+    (begin (macroexpand
+            '(command #:foo (message #:type string)
+                      #:run "echo" message
+                      #:outputs (stdout #:type stdout)))
+           #f)))
 
 (test-assert "command, when passed multiple arguments to a unary keyword, must raise a &ccwl-violation condition"
   (guard (exception
           (else (ccwl-violation? exception)))
-    (macroexpand
-     '(command #:inputs (message #:type string)
-               #:run "echo" message
-               #:outputs (stdout #:type stdout)
-               #:stdin "foo" "bar"))))
+    (begin (macroexpand
+            '(command #:inputs (message #:type string)
+                      #:run "echo" message
+                      #:outputs (stdout #:type stdout)
+                      #:stdin "foo" "bar"))
+           #f)))
 
 ;; TODO: Define this in the lexical scope of the test that requires
 ;; it.