New library of helper macros for the runtime tests.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@5377 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/test-suite/guile/testsuite.scm

@@ -0,0 +1,37 @@
+;; Little helper functions and macros for the run tests
+
+(use-modules (ice-9 format))
+
+(define (test-error error-format . args)
+  (display "Runtime check failed. ")
+  (apply format #t error-format args)
+  (newline)
+  (exit 1))
+
+(define-macro (expect-true form)
+  `(if (not ,form)
+       (test-error "Expected true value of ~A" ',form)))
+
+(define-macro (expect-false form)
+  `(if ,form
+       (test-error "Expected false value of ~A" ',form)))
+
+(define-macro (expect-result expected-result-form equal? form)
+  `(let ((expected-result ,expected-result-form)
+	 (result ,form))
+     (if (not (,equal? result expected-result))
+	 (test-error "The result of ~A was ~A, expected ~A, which is not ~A"
+		     ',form result expected-result ',equal?))))
+
+(define-macro (expect-throw tag-form form)
+  `(let ((tag ,tag-form))
+     (if (catch #t
+		(lambda ()
+		  ,form
+		  #t)
+		(lambda (key . args)
+		  (if (eq? key ,tag-form)
+		      #f
+		      (test-error "The form ~A threw to ~A (expected a throw to ~A)"
+				  ',form key tag))))
+	 (test-error "The form ~A returned normally (expected a throw to ~A)"))))