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Diffstat (limited to 'src/run.lisp')
| -rw-r--r-- | src/run.lisp | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/src/run.lisp b/src/run.lisp new file mode 100644 index 0000000000..89c5223515 --- /dev/null +++ b/src/run.lisp @@ -0,0 +1,385 @@ +;;;; -*- Mode: Lisp; indent-tabs-mode: nil -*- + +(in-package :it.bese.fiveam) + +;;;; * Running Tests + +;;;; Once the programmer has defined what the tests are these need to +;;;; be run and the expected effects should be compared with the +;;;; actual effects. FiveAM provides the function RUN for this +;;;; purpose, RUN executes a number of tests and collects the results +;;;; of each individual check into a list which is then +;;;; returned. There are three types of test results: passed, failed +;;;; and skipped, these are represented by TEST-RESULT objects. + +;;;; Generally running a test will return normally, but there are two +;;;; exceptional situations which can occur: + +;;;; - An exception is signaled while running the test. If the +;;;; variable *on-error* is :DEBUG than FiveAM will enter the +;;;; debugger, otherwise a test failure (of type +;;;; unexpected-test-failure) is returned. When entering the +;;;; debugger two restarts are made available, one simply reruns the +;;;; current test and another signals a test-failure and continues +;;;; with the remaining tests. + +;;;; - A circular dependency is detected. An error is signaled and a +;;;; restart is made available which signals a test-skipped and +;;;; continues with the remaining tests. This restart also sets the +;;;; dependency status of the test to nil, so any tests which depend +;;;; on this one (even if the dependency is not circular) will be +;;;; skipped. + +;;;; The functions RUN!, !, !! and !!! are convenient wrappers around +;;;; RUN and EXPLAIN. + +(deftype on-problem-action () + '(member :debug :backtrace nil)) + +(declaim (type on-problem-action *on-error* *on-failure*)) + +(defvar *on-error* nil + "The action to perform on error: +- :DEBUG if we should drop into the debugger +- :BACKTRACE to print a backtrace +- NIL to simply continue") + +(defvar *on-failure* nil + "The action to perform on check failure: +- :DEBUG if we should drop into the debugger +- :BACKTRACE to print a backtrace +- NIL to simply continue") + +(defvar *debug-on-error* nil + "T if we should drop into the debugger on error, NIL otherwise. +OBSOLETE: superseded by *ON-ERROR*") + +(defvar *debug-on-failure* nil + "T if we should drop into the debugger on a failing check, NIL otherwise. +OBSOLETE: superseded by *ON-FAILURE*") + +(defparameter *print-names* t + "T if we should print test running progress, NIL otherwise.") + +(defparameter *test-dribble-indent* (make-array 0 + :element-type 'character + :fill-pointer 0 + :adjustable t) + "Used to indent tests and test suites in their parent suite") + +(defun import-testing-symbols (package-designator) + (import '(5am::is 5am::is-true 5am::is-false 5am::signals 5am::finishes) + package-designator)) + +(defparameter *run-queue* '() + "List of test waiting to be run.") + +(define-condition circular-dependency (error) + ((test-case :initarg :test-case)) + (:report (lambda (cd stream) + (format stream "A circular dependency wes detected in ~S." (slot-value cd 'test-case)))) + (:documentation "Condition signaled when a circular dependency +between test-cases has been detected.")) + +(defgeneric run-resolving-dependencies (test) + (:documentation "Given a dependency spec determine if the spec +is satisfied or not, this will generally involve running other +tests. If the dependency spec can be satisfied the test is also +run.")) + +(defmethod run-resolving-dependencies ((test test-case)) + "Return true if this test, and its dependencies, are satisfied, + NIL otherwise." + (case (status test) + (:unknown + (setf (status test) :resolving) + (if (or (not (depends-on test)) + (eql t (resolve-dependencies (depends-on test)))) + (progn + (run-test-lambda test) + (status test)) + (with-run-state (result-list) + (unless (eql :circular (status test)) + (push (make-instance 'test-skipped + :test-case test + :reason "Dependencies not satisfied") + result-list) + (setf (status test) :depends-not-satisfied))))) + (:resolving + (restart-case + (error 'circular-dependency :test-case test) + (skip () + :report (lambda (s) + (format s "Skip the test ~S and all its dependencies." (name test))) + (with-run-state (result-list) + (push (make-instance 'test-skipped :reason "Circular dependencies" :test-case test) + result-list)) + (setf (status test) :circular)))) + (t (status test)))) + +(defgeneric resolve-dependencies (depends-on)) + +(defmethod resolve-dependencies ((depends-on symbol)) + "A test which depends on a symbol is interpreted as `(AND + ,DEPENDS-ON)." + (run-resolving-dependencies (get-test depends-on))) + +(defmethod resolve-dependencies ((depends-on list)) + "Return true if the dependency spec DEPENDS-ON is satisfied, + nil otherwise." + (if (null depends-on) + t + (flet ((satisfies-depends-p (test) + (funcall test (lambda (dep) + (eql t (resolve-dependencies dep))) + (cdr depends-on)))) + (ecase (car depends-on) + (and (satisfies-depends-p #'every)) + (or (satisfies-depends-p #'some)) + (not (satisfies-depends-p #'notany)) + (:before (every #'(lambda (dep) + (let ((status (status (get-test dep)))) + (if (eql :unknown status) + (run-resolving-dependencies (get-test dep)) + status))) + (cdr depends-on))))))) + +(defun results-status (result-list) + "Given a list of test results (generated while running a test) + return true if no results are of type TEST-FAILURE. Returns second + and third values, which are the set of failed tests and skipped + tests respectively." + (let ((failed-tests + (remove-if-not #'test-failure-p result-list)) + (skipped-tests + (remove-if-not #'test-skipped-p result-list))) + (values (null failed-tests) + failed-tests + skipped-tests))) + +(defun return-result-list (test-lambda) + "Run the test function TEST-LAMBDA and return a list of all + test results generated, does not modify the special environment + variable RESULT-LIST." + (bind-run-state ((result-list '())) + (funcall test-lambda) + result-list)) + +(defgeneric run-test-lambda (test)) + +(defmethod run-test-lambda ((test test-case)) + (with-run-state (result-list) + (bind-run-state ((current-test test)) + (labels ((abort-test (e &optional (reason (format nil "Unexpected Error: ~S~%~A." e e))) + (add-result 'unexpected-test-failure + :test-expr nil + :test-case test + :reason reason + :condition e)) + (run-it () + (let ((result-list '())) + (declare (special result-list)) + (handler-bind ((check-failure (lambda (e) + (declare (ignore e)) + (cond + ((eql *on-failure* :debug) + nil) + (t + (when (eql *on-failure* :backtrace) + (trivial-backtrace:print-backtrace-to-stream + *test-dribble*)) + (invoke-restart + (find-restart 'ignore-failure)))))) + (error (lambda (e) + (unless (or (eql *on-error* :debug) + (typep e 'check-failure)) + (when (eql *on-error* :backtrace) + (trivial-backtrace:print-backtrace-to-stream + *test-dribble*)) + (abort-test e) + (return-from run-it result-list))))) + (restart-case + (handler-case + (let ((*readtable* (copy-readtable)) + (*package* (runtime-package test))) + (when *print-names* + (format *test-dribble* "~%~ARunning test ~A " *test-dribble-indent* (name test))) + (if (collect-profiling-info test) + ;; Timing info doesn't get collected ATM, we need a portable library + ;; (setf (profiling-info test) (collect-timing (test-lambda test))) + (funcall (test-lambda test)) + (funcall (test-lambda test)))) + (storage-condition (e) + ;; heap-exhausted/constrol-stack-exhausted + ;; handler-case unwinds the stack (unlike handler-bind) + (abort-test e (format nil "STORAGE-CONDITION: aborted for safety. ~S~%~A." e e)) + (return-from run-it result-list))) + (retest () + :report (lambda (stream) + (format stream "~@<Rerun the test ~S~@:>" test)) + (return-from run-it (run-it))) + (ignore () + :report (lambda (stream) + (format stream "~@<Signal an exceptional test failure and abort the test ~S.~@:>" test)) + (abort-test (make-instance 'test-failure :test-case test + :reason "Failure restart.")))) + result-list)))) + (let ((results (run-it))) + (setf (status test) (results-status results) + result-list (nconc result-list results))))))) + +(defgeneric %run (test-spec) + (:documentation "Internal method for running a test. Does not + update the status of the tests nor the special variables !, + !!, !!!")) + +(defmethod %run ((test test-case)) + (run-resolving-dependencies test)) + +(defmethod %run ((tests list)) + (mapc #'%run tests)) + +(defmethod %run ((suite test-suite)) + (when *print-names* + (format *test-dribble* "~%~ARunning test suite ~A" *test-dribble-indent* (name suite))) + (let ((suite-results '())) + (flet ((run-tests () + (loop + for test being the hash-values of (tests suite) + do (%run test)))) + (vector-push-extend #\space *test-dribble-indent*) + (unwind-protect + (bind-run-state ((result-list '())) + (unwind-protect + (if (collect-profiling-info suite) + ;; Timing info doesn't get collected ATM, we need a portable library + ;; (setf (profiling-info suite) (collect-timing #'run-tests)) + (run-tests) + (run-tests))) + (setf suite-results result-list + (status suite) (every #'test-passed-p suite-results))) + (vector-pop *test-dribble-indent*) + (with-run-state (result-list) + (setf result-list (nconc result-list suite-results))))))) + +(defmethod %run ((test-name symbol)) + (when-let (test (get-test test-name)) + (%run test))) + +(defvar *initial-!* (lambda () (format t "Haven't run that many tests yet.~%"))) + +(defvar *!* *initial-!*) +(defvar *!!* *initial-!*) +(defvar *!!!* *initial-!*) + +;;;; ** Public entry points + +(defun run! (&optional (test-spec *suite*) + &key ((:print-names *print-names*) *print-names*)) + "Equivalent to (explain! (run TEST-SPEC))." + (explain! (run test-spec))) + +(defun explain! (result-list) + "Explain the results of RESULT-LIST using a +detailed-text-explainer with output going to *test-dribble*. +Return a boolean indicating whether no tests failed." + (explain (make-instance 'detailed-text-explainer) result-list *test-dribble*) + (results-status result-list)) + +(defun debug! (&optional (test-spec *suite*)) + "Calls (run! test-spec) but enters the debugger if any kind of error happens." + (let ((*on-error* :debug) + (*on-failure* :debug)) + (run! test-spec))) + +(defun run (test-spec &key ((:print-names *print-names*) *print-names*)) + "Run the test specified by TEST-SPEC. + +TEST-SPEC can be either a symbol naming a test or test suite, or +a testable-object object. This function changes the operations +performed by the !, !! and !!! functions." + (psetf *!* (lambda () + (loop :for test :being :the :hash-keys :of *test* + :do (setf (status (get-test test)) :unknown)) + (bind-run-state ((result-list '())) + (with-simple-restart (explain "Ignore the rest of the tests and explain current results") + (%run test-spec)) + result-list)) + *!!* *!* + *!!!* *!!*) + (let ((*on-error* + (or *on-error* (cond + (*debug-on-error* + (format *test-dribble* "*DEBUG-ON-ERROR* is obsolete. Use *ON-ERROR*.") + :debug) + (t nil)))) + (*on-failure* + (or *on-failure* (cond + (*debug-on-failure* + (format *test-dribble* "*DEBUG-ON-FAILURE* is obsolete. Use *ON-FAILURE*.") + :debug) + (t nil))))) + (funcall *!*))) + +(defun ! () + "Rerun the most recently run test and explain the results." + (explain! (funcall *!*))) + +(defun !! () + "Rerun the second most recently run test and explain the results." + (explain! (funcall *!!*))) + +(defun !!! () + "Rerun the third most recently run test and explain the results." + (explain! (funcall *!!!*))) + +(defun run-all-tests (&key (summary :end)) + "Runs all defined test suites, T if all tests passed and NIL otherwise. +SUMMARY can be :END to print a summary at the end, :SUITE to print it +after each suite or NIL to skip explanations." + (check-type summary (member nil :suite :end)) + (loop :for suite :in (cons 'nil (sort (copy-list *toplevel-suites*) #'string<=)) + :for results := (if (suite-emptyp suite) nil (run suite)) + :when (consp results) + :collect results :into all-results + :do (cond + ((not (eql summary :suite)) + nil) + (results + (explain! results)) + (suite + (format *test-dribble* "Suite ~A is empty~%" suite))) + :finally (progn + (when (eql summary :end) + (explain! (alexandria:flatten all-results))) + (return (every #'results-status all-results))))) + +;; Copyright (c) 2002-2003, Edward Marco Baringer +;; All rights reserved. +;; +;; Redistribution and use in source and binary forms, with or without +;; modification, are permitted provided that the following conditions are +;; met: +;; +;; - Redistributions of source code must retain the above copyright +;; notice, this list of conditions and the following disclaimer. +;; +;; - Redistributions in binary form must reproduce the above copyright +;; notice, this list of conditions and the following disclaimer in the +;; documentation and/or other materials provided with the distribution. +;; +;; - Neither the name of Edward Marco Baringer, nor BESE, nor the names +;; of its contributors may be used to endorse or promote products +;; derived from this software without specific prior written permission. +;; +;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +;; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |