[asdf-devel] TEST-OP made useful by declarative options

[Juan Jose Garcia-Ripoll]

The attached patch adds a new option to DEFSYSTEM. This option is

:TESTS test-list

test-list = (:system system-name) | function-name
system-name = keyword | string
function-name = symbol | string

The function name is a string designator that denotes a function with no
arguments to be called. This string will be read using the standard I/O
syntax only when the test is executed. This ensures that the mechanism works
once the appropriate dependencies are loaded.
The system name denotes a system that will be loaded when the TEST-OP
operation is invoked.

The patch can be improved with some tests done when executing DEFSYTEM
instead of what it does now, which is to signal an error once the test is
performed.

The usual example follows.

foo.asd:

(defsystem :foo
    :tests ((:system "faa"))
    :components ((:file "foo")))

faa.asd:

(defsystem :faa
    :tests ("faa::run-tests")
    :components ((:file "faa")))

foo.lisp:

(defpackage "FOO")

(in-package "FOO")

(defun my-cos (a)
  (cos a))

faa.lisp:

(defpackage "FAA")

(in-package "FAA")

(defun run-tests ()
  (format t "~&;;;~%;;; MY-COS signals errors: ~A~%;;;"
          (handler-case (progn (foo::my-cos 'a) 'no)
            (error (c) 'yes))))



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