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105 lines
3.5 KiB
Common Lisp
105 lines
3.5 KiB
Common Lisp
;;; Copyright (c) 2014 James M. Lawrence
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;;;
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;;; Permission is hereby granted, free of charge, to any person
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;;; obtaining a copy of this software and associated documentation
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;;; files (the "Software"), to deal in the Software without
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;;; restriction, including without limitation the rights to use, copy,
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;;; modify, merge, publish, distribute, sublicense, and/or sell copies
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;;; of the Software, and to permit persons to whom the Software is
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;;; furnished to do so, subject to the following conditions:
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;;;
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;;; The above copyright notice and this permission notice shall be
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;;; included in all copies or substantial portions of the Software.
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;;;
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;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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;;; DEALINGS IN THE SOFTWARE.
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(defpackage #:1am-ecl
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(:use #:cl)
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(:export #:test #:is #:signals #:run #:*tests*))
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(in-package #:1am-ecl)
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(defvar *tests* nil "A list of tests; the default argument to `run'.")
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(defvar *pass-count* nil)
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(defvar *running* nil)
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(defvar *failed-random-state* nil)
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(defun %shuffle (vector)
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(loop for i downfrom (- (length vector) 1) to 1
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do (rotatef (aref vector i) (aref vector (random (1+ i)))))
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vector)
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(defun shuffle (sequence)
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(%shuffle (map 'vector #'identity sequence)))
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(defun call-with-random-state (fn)
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(let ((*random-state* (or *failed-random-state*
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(load-time-value (make-random-state t)))))
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(setf *failed-random-state* (make-random-state nil))
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(multiple-value-prog1 (funcall fn)
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(setf *failed-random-state* nil))))
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(defun report (test-count pass-count)
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(format t "~&Success: ~s test~:p, ~s check~:p.~%" test-count pass-count))
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(defun %run (fn test-count)
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(let ((*pass-count* 0))
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(multiple-value-prog1 (call-with-random-state fn)
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(report test-count *pass-count*))))
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(defun run (&optional (tests *tests*))
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"Run each test in the sequence `tests'. Default is `*tests*'."
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(let ((*running* t))
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(%run (lambda () (map nil #'funcall (shuffle tests)))
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(length tests)))
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(values))
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(defun call-test (name fn)
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(format t "~&~s" name)
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(finish-output)
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(if *running*
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(funcall fn)
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(%run fn 1)))
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(defmacro test (name &body body)
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"Define a test function and add it to `*tests*'."
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`(progn
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(defun ,name ()
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(call-test ',name (lambda () ,@body)))
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(pushnew ',name *tests*)
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',name))
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(defun passed ()
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(write-char #\.)
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;; Checks done outside a test run are not tallied.
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(when *pass-count*
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(incf *pass-count*))
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(values))
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(defmacro is (form)
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"Assert that `form' evaluates to non-nil."
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`(progn
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(assert ,form)
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(passed)))
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(defun %signals (expected fn)
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(flet ((handler (condition)
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(cond ((typep condition expected)
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(passed)
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(return-from %signals (values)))
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(t (error "Expected to signal ~s, but got ~s:~%~a"
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expected (type-of condition) condition)))))
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(handler-bind ((condition #'handler))
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(funcall fn)))
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(error "Expected to signal ~s, but got nothing." expected))
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(defmacro signals (condition &body body)
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"Assert that `body' signals a condition of type `condition'."
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`(%signals ',condition (lambda () ,@body)))
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