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*Wed Aug 22 06:34:52 2007 UTC* (11 years, 8 months ago) by *anton*

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Branches: MAIN

CVS tags: HEAD

bugfixes

\ for the original tester \ From: John Hayes S1I \ Subject: tester.fr \ Date: Mon, 27 Nov 95 13:10:09 PST \ (C) 1995 JOHNS HOPKINS UNIVERSITY / APPLIED PHYSICS LABORATORY \ MAY BE DISTRIBUTED FREELY AS LONG AS THIS COPYRIGHT NOTICE REMAINS. \ VERSION 1.1 \ for the FNEARLY= stuff: \ from ftester.fs written by David N. Williams, based on the \ approximate equality in Dirk Zoller's float.4th \ This library is free software; you can redistribute it and/or \ modify it under the terms of the GNU Lesser General Public \ License as published by the Free Software Foundation; either \ version 2.1 of the License, or at your option any later version. \ This library is distributed in the hope that it will be useful, \ but WITHOUT ANY WARRANTY; without even the implied warranty of \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU \ Lesser General Public License for more details. \ You should have received a copy of the GNU Lesser General Public \ License along with this library; if not, write to the Free \ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, \ MA 02111-1307 USA. \ for the rest: \ revised by Anton Ertl 2007-08-12, 2007-08-19 \ public domain \ The original has the following shortcomings: \ - It does not work as expected if the stack is non-empty before the {. \ - It does not check FP results if the system has a separate FP stack. \ - There is a conflict with the use of } for FSL arrays and { for locals. \ I have revised it to address these shortcomings. You can find the \ result at \ http://www.forth200x.org/tests/tester.fs \ http://www.forth200x.org/tests/ttester.fs \ tester.fs is intended to be a drop-in replacement of the original. \ ttester.fs is a version that uses T{ and }T instead of { and }. \ In spirit of the original, I have strived to avoid any potential \ non-portabilities and stayed as much within the CORE words as \ possible; e.g., FLOATING words are used only if the FLOATING wordset \ is present \ There are a few things to be noted: \ - Following the despicable practice of the original, this version \ sets the base to HEX for everything that gets loaded later. \ Floating-point input is ambiguous when the base is not decimal, so \ you have to set it to decimal yourself when you want to deal with \ decimal numbers. \ - For FP it is often useful to use approximate equality for checking \ the results. You can turn on approximate matching with SET-NEAR \ (and turn it off (default) with SET-EXACT, and you can tune it by \ setting the variables REL-NEAR and ABS-NEAR. If you want your tests \ to work with a shared stack, you have to specify the types of the \ elements on the stack by using one of the closing words that specify \ types, e.g. RRRX}T for checking the stack picture ( r r r x ). \ There are such words for all combination of R and X with up to 4 \ stack items, and defining more if you need them is straightforward \ (see source). If your tests are only intended for a separate-stack \ system or if you need only exact matching, you can use the plain }T \ instead. HEX \ SET THE FOLLOWING FLAG TO TRUE FOR MORE VERBOSE OUTPUT; THIS MAY \ ALLOW YOU TO TELL WHICH TEST CAUSED YOUR SYSTEM TO HANG. VARIABLE VERBOSE FALSE VERBOSE ! VARIABLE ACTUAL-DEPTH \ STACK RECORD CREATE ACTUAL-RESULTS 20 CELLS ALLOT VARIABLE START-DEPTH VARIABLE XCURSOR \ FOR ...}T VARIABLE ERROR-XT : ERROR ERROR-XT @ EXECUTE ; : "FLOATING" S" FLOATING" ; \ ONLY COMPILED S" IN CORE : "FLOATING-STACK" S" FLOATING-STACK" ; "FLOATING" ENVIRONMENT? [IF] [IF] TRUE [ELSE] FALSE [THEN] [ELSE] FALSE [THEN] CONSTANT HAS-FLOATING "FLOATING-STACK" ENVIRONMENT? [IF] [IF] TRUE [ELSE] FALSE [THEN] [ELSE] \ WE DON'T KNOW WHETHER THE FP STACK IS SEPARATE HAS-FLOATING \ IF WE HAVE FLOATING, WE ASSUME IT IS [THEN] CONSTANT HAS-FLOATING-STACK HAS-FLOATING [IF] \ SET THE FOLLOWING TO THE RELATIVE AND ABSOLUTE TOLERANCES YOU \ WANT FOR APPROXIMATE FLOAT EQUALITY, TO BE USED WITH F~ IN \ FNEARLY=. KEEP THE SIGNS, BECAUSE F~ NEEDS THEM. FVARIABLE FSENSITIVITY DECIMAL 1E-12 HEX FSENSITIVITY F! : REL-NEAR FSENSITIVITY ; FVARIABLE ABS-NEAR DECIMAL 0E HEX ABS-NEAR F! \ WHEN EXACT? IS TRUE, }F USES FEXACTLY=, OTHERWISE FNEARLY=. TRUE VALUE EXACT? : SET-EXACT ( -- ) TRUE TO EXACT? ; : SET-NEAR ( -- ) FALSE TO EXACT? ; DECIMAL : FEXACTLY= ( F: X Y -- S: FLAG ) ( LEAVE TRUE IF THE TWO FLOATS ARE IDENTICAL. ) 0E F~ ; HEX : FABS= ( F: X Y -- S: FLAG ) ( LEAVE TRUE IF THE TWO FLOATS ARE EQUAL WITHIN THE TOLERANCE STORED IN ABS-NEAR. ) ABS-NEAR F@ F~ ; : FREL= ( F: X Y -- S: FLAG ) ( LEAVE TRUE IF THE TWO FLOATS ARE RELATIVELY EQUAL BASED ON THE TOLERANCE STORED IN ABS-NEAR. ) REL-NEAR F@ FNEGATE F~ ; : F2DUP FOVER FOVER ; : F2DROP FDROP FDROP ; : FNEARLY= ( F: X Y -- S: FLAG ) ( LEAVE TRUE IF THE TWO FLOATS ARE NEARLY EQUAL. THIS IS A REFINEMENT OF DIRK ZOLLER'S FEQ TO ALSO ALLOW X = Y, INCLUDING BOTH ZERO, OR TO ALLOW APPROXIMATE EQUALITY WHEN X AND Y ARE TOO SMALL TO SATISFY THE RELATIVE APPROXIMATION MODE IN THE F~ SPECIFICATION. ) F2DUP FEXACTLY= IF F2DROP TRUE EXIT THEN F2DUP FREL= IF F2DROP TRUE EXIT THEN FABS= ; : FCONF= ( R1 R2 -- F ) EXACT? IF FEXACTLY= ELSE FNEARLY= THEN ; [THEN] HAS-FLOATING-STACK [IF] VARIABLE ACTUAL-FDEPTH CREATE ACTUAL-FRESULTS 20 FLOATS ALLOT VARIABLE START-FDEPTH VARIABLE FCURSOR : EMPTY-FSTACK ( ... -- ... ) FDEPTH START-FDEPTH @ < IF FDEPTH START-FDEPTH @ SWAP DO 0E LOOP THEN FDEPTH START-FDEPTH @ > IF FDEPTH START-FDEPTH @ DO FDROP LOOP THEN ; : F{ ( -- ) FDEPTH START-FDEPTH ! 0 FCURSOR ! ; : F-> ( ... -- ... ) FDEPTH DUP ACTUAL-FDEPTH ! START-FDEPTH @ > IF FDEPTH START-FDEPTH @ DO ACTUAL-FRESULTS I FLOATS + F! LOOP THEN ; : F} ( ... -- ... ) FDEPTH ACTUAL-FDEPTH @ = IF FDEPTH START-FDEPTH @ > IF FDEPTH START-FDEPTH @ DO ACTUAL-FRESULTS I FLOATS + F@ FCONF= INVERT IF S" INCORRECT FP RESULT: " ERROR LEAVE THEN LOOP THEN ELSE S" WRONG NUMBER OF FP RESULTS: " ERROR THEN ; : F...}T ( -- ) FDEPTH START-FDEPTH @ = 0= IF S" WRONG NUMBER OF FP RESULTS" ERROR THEN FCURSOR @ ACTUAL-FDEPTH @ <> IF S" WRONG NUMBER OF FP RESULTS" ERROR THEN ; : FTESTER ( R -- ) FDEPTH 0= ACTUAL-FDEPTH @ FCURSOR @ 1+ < OR IF S" WRONG NUMBER OF FP RESULTS: " ERROR EXIT THEN ACTUAL-FRESULTS FCURSOR @ FLOATS + F@ FCONF= 0= IF S" INCORRECT FP RESULT: " ERROR THEN 1 FCURSOR +! ; [ELSE] : EMPTY-FSTACK ; : F{ ; : F-> ; : F} ; : F...}T ; DECIMAL : COMPUTE-CELLS-PER-FP ( -- U ) DEPTH 0E DEPTH 1- >R FDROP R> SWAP - ; HEX COMPUTE-CELLS-PER-FP CONSTANT CELLS-PER-FP : FTESTER ( R -- ) DEPTH CELLS-PER-FP < ACTUAL-DEPTH @ XCURSOR @ CELLS-PER-FP + < OR IF S" WRONG NUMBER OF RESULTS: " ERROR EXIT THEN ACTUAL-RESULTS XCURSOR @ CELLS + F@ FCONF= 0= IF S" INCORRECT FP RESULT: " ERROR THEN CELLS-PER-FP XCURSOR +! ; [THEN] : EMPTY-STACK \ ( ... -- ) EMPTY STACK: HANDLES UNDERFLOWED STACK TOO. DEPTH START-DEPTH @ < IF DEPTH START-DEPTH @ SWAP DO 0 LOOP THEN DEPTH START-DEPTH @ > IF DEPTH START-DEPTH @ DO DROP LOOP THEN EMPTY-FSTACK ; : ERROR1 \ ( C-ADDR U -- ) DISPLAY AN ERROR MESSAGE FOLLOWED BY \ THE LINE THAT HAD THE ERROR. TYPE SOURCE TYPE CR \ DISPLAY LINE CORRESPONDING TO ERROR EMPTY-STACK \ THROW AWAY EVERY THING ELSE ; ' ERROR1 ERROR-XT ! : T{ \ ( -- ) SYNTACTIC SUGAR. DEPTH START-DEPTH ! 0 XCURSOR ! F{ ; : -> \ ( ... -- ) RECORD DEPTH AND CONTENT OF STACK. DEPTH DUP ACTUAL-DEPTH ! \ RECORD DEPTH START-DEPTH @ > IF \ IF THERE IS SOMETHING ON STACK DEPTH START-DEPTH @ DO ACTUAL-RESULTS I CELLS + ! LOOP \ SAVE THEM THEN F-> ; : }T \ ( ... -- ) COMPARE STACK (EXPECTED) CONTENTS WITH SAVED \ (ACTUAL) CONTENTS. DEPTH ACTUAL-DEPTH @ = IF \ IF DEPTHS MATCH DEPTH START-DEPTH @ > IF \ IF THERE IS SOMETHING ON THE STACK DEPTH START-DEPTH @ DO \ FOR EACH STACK ITEM ACTUAL-RESULTS I CELLS + @ \ COMPARE ACTUAL WITH EXPECTED <> IF S" INCORRECT RESULT: " ERROR LEAVE THEN LOOP THEN ELSE \ DEPTH MISMATCH S" WRONG NUMBER OF RESULTS: " ERROR THEN F} ; : ...}T ( -- ) DEPTH START-DEPTH @ = 0= IF S" WRONG NUMBER OF RESULTS" ERROR THEN XCURSOR @ ACTUAL-DEPTH @ <> IF S" WRONG NUMBER OF RESULTS" ERROR THEN F...}T ; : XTESTER ( X -- ) DEPTH 0= ACTUAL-DEPTH @ XCURSOR @ 1+ < OR IF S" WRONG NUMBER OF RESULTS: " ERROR EXIT THEN ACTUAL-RESULTS XCURSOR @ CELLS + @ <> IF S" INCORRECT CELL RESULT: " ERROR THEN 1 XCURSOR +! ; : X}T XTESTER ...}T ; : R}T FTESTER ...}T ; : XX}T XTESTER XTESTER ...}T ; : XR}T FTESTER XTESTER ...}T ; : RX}T XTESTER FTESTER ...}T ; : RR}T FTESTER FTESTER ...}T ; : XXX}T XTESTER XTESTER XTESTER ...}T ; : XXR}T FTESTER XTESTER XTESTER ...}T ; : XRX}T XTESTER FTESTER XTESTER ...}T ; : XRR}T FTESTER FTESTER XTESTER ...}T ; : RXX}T XTESTER XTESTER FTESTER ...}T ; : RXR}T FTESTER XTESTER FTESTER ...}T ; : RRX}T XTESTER FTESTER FTESTER ...}T ; : RRR}T FTESTER FTESTER FTESTER ...}T ; : XXXX}T XTESTER XTESTER XTESTER XTESTER ...}T ; : XXXR}T FTESTER XTESTER XTESTER XTESTER ...}T ; : XXRX}T XTESTER FTESTER XTESTER XTESTER ...}T ; : XXRR}T FTESTER FTESTER XTESTER XTESTER ...}T ; : XRXX}T XTESTER XTESTER FTESTER XTESTER ...}T ; : XRXR}T FTESTER XTESTER FTESTER XTESTER ...}T ; : XRRX}T XTESTER FTESTER FTESTER XTESTER ...}T ; : XRRR}T FTESTER FTESTER FTESTER XTESTER ...}T ; : RXXX}T XTESTER XTESTER XTESTER FTESTER ...}T ; : RXXR}T FTESTER XTESTER XTESTER FTESTER ...}T ; : RXRX}T XTESTER FTESTER XTESTER FTESTER ...}T ; : RXRR}T FTESTER FTESTER XTESTER FTESTER ...}T ; : RRXX}T XTESTER XTESTER FTESTER FTESTER ...}T ; : RRXR}T FTESTER XTESTER FTESTER FTESTER ...}T ; : RRRX}T XTESTER FTESTER FTESTER FTESTER ...}T ; : RRRR}T FTESTER FTESTER FTESTER FTESTER ...}T ; : TESTING \ ( -- ) TALKING COMMENT. SOURCE VERBOSE @ IF DUP >R TYPE CR R> >IN ! ELSE >IN ! DROP THEN ;

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