6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 4902952 4905407 4916149
27 * @summary Tests that the scale of zero is propagated properly and has the proper effect.
28 * @author Joseph D. Darcy
29 */
30
31 import java.math.*;
32 import java.util.*;
33
34 public class ZeroScalingTests {
35
36 static MathContext longEnough = new MathContext(50, RoundingMode.UNNECESSARY);
37
38 static BigDecimal[] zeros = new BigDecimal[23];
39 static {
40 for(int i = 0; i < 21; i++) {
41 zeros[i] = new BigDecimal(BigInteger.ZERO, i-10);
42 }
43 zeros[21] = new BigDecimal(BigInteger.ZERO, Integer.MIN_VALUE);
44 zeros[22] = new BigDecimal(BigInteger.ZERO, Integer.MAX_VALUE);
45 }
46
47 static BigDecimal element = BigDecimal.valueOf(100, -2);
428 }
429
430 static int ulpTests() {
431 int failures = 0;
432
433 for(BigDecimal zero: zeros) {
434 BigDecimal result;
435 BigDecimal expected = BigDecimal.valueOf(1, zero.scale());
436
437 if (! (result=zero.ulp()).equals(expected) ) {
438 failures++;
439 System.err.println("Unexpected ulp value for zero value " +
440 zero + "; expected " + expected +
441 ", got " + result);
442 }
443 }
444
445 return failures;
446 }
447
448 public static void main(String argv[]) {
449 int failures = 0;
450
451 failures += addTests();
452 failures += subtractTests();
453 failures += multiplyTests();
454 failures += divideTests();
455 failures += setScaleTests();
456 failures += toEngineeringStringTests();
457 failures += ulpTests();
458
459 if (failures > 0 ) {
460 throw new RuntimeException("Incurred " + failures + " failures" +
461 " testing the preservation of zero scales.");
462 }
463 }
464 }
|
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 4902952 4905407 4916149 8057793
27 * @summary Tests that the scale of zero is propagated properly and has the
28 * proper effect and that setting the scale to zero does not mutate the
29 * BigDecimal.
30 * @author Joseph D. Darcy
31 */
32
33 import java.math.*;
34 import java.util.*;
35
36 public class ZeroScalingTests {
37
38 static MathContext longEnough = new MathContext(50, RoundingMode.UNNECESSARY);
39
40 static BigDecimal[] zeros = new BigDecimal[23];
41 static {
42 for(int i = 0; i < 21; i++) {
43 zeros[i] = new BigDecimal(BigInteger.ZERO, i-10);
44 }
45 zeros[21] = new BigDecimal(BigInteger.ZERO, Integer.MIN_VALUE);
46 zeros[22] = new BigDecimal(BigInteger.ZERO, Integer.MAX_VALUE);
47 }
48
49 static BigDecimal element = BigDecimal.valueOf(100, -2);
430 }
431
432 static int ulpTests() {
433 int failures = 0;
434
435 for(BigDecimal zero: zeros) {
436 BigDecimal result;
437 BigDecimal expected = BigDecimal.valueOf(1, zero.scale());
438
439 if (! (result=zero.ulp()).equals(expected) ) {
440 failures++;
441 System.err.println("Unexpected ulp value for zero value " +
442 zero + "; expected " + expected +
443 ", got " + result);
444 }
445 }
446
447 return failures;
448 }
449
450 // bug 8057793
451 static int setScaleDoesNotMutateTest() {
452 BigDecimal total = new BigDecimal("258815507198903607775511093103396443816569106750031264155319238473795838680758514810110764742309284477206138527975952150289602995045050194333030191178778772026538699925775139201970526695485362661420908248887297829319881475178467494779683293036572059595504702727301324759997409522995072582369210284334718757260859794972695026582432867589093687280300148141501712013226636373167978223780290547640482160818746599330924736802844173226042389174403401903999447463440670236056324929325189403433689"
453 + ".426167432065785331444814035799717606745777287606858873045971898862329763544687891847664736523584843544347118836628373041412918374550458884706686730726101338872517021688769782894793734049819222924171842793485919753186993388451909096042127903835765393729547730953942175461146061715108701615615142134282261293656760570061554783195726716403304101469782303957325142638493327692352838806741611887655695029948975509680496573999174402058593454203190963443179532640446352828089016874853634851387762579319853267317320515941105912189838719919259277721994880193541634872882180184303434360412344059435559680494807415573269199203376126242271766939666939316648575065702750502798973418978204972336924254702551350654650573582614211506856383897692911422458286912085339575875324832979140870119455620532272318122103640233069115700020760625493816902806241630788230268031695140687964931377988962507263990468276009750998066442971308866347136022907166625330623130307555914930120150437900510530537258665172619821272937026713977709974434967165159545592482710663639966781678268622620229577009317698254134914742098420792313931843709810905414336383757407675429663714210967924767434203021205270369316797752411974617662200898086335322218191674846795163102021505555508444216708745911194321674887527227200297039471799580744303346354057273540730643842091810899490590914195225087593013834388801018488174855060306804024894292757613618190472234110859436472645203753139820658279559340251226992556744343475086923568365637919479462424794554522865559888240039662899509652221329892034706445253487898044421278283079233226845124525434586324657471286953226255430662125870993375281512713207125720748163498642795960457639954616530163959004770092547297392499137383176609646505351001304840762905826237024982330597805063521162285806541220110524989649256399233792799406995068469271941269511818994954109392839548141262324660472253632382325038836831429045617036015122388070240133760858500132713255407855625837956886349324981003917084922808187223285051144454915441134217743066575863563572152133978905444998209075763950909784148142018992367290485890072303179512881131769414783097454103103347826517701720263541869335631166977965013552647906729408522950996105479525445916501155305220090853891226367184989434453290788068397817927893708837722255115237672194162924260945492012622891770365546831236789867922136747819364833843397165107825773447549885351449899330007200651144003961228091210630807333236718793283427788965479074476288255387824982443633190938302785760754436525586544523339170400053128503337395428393881357669568532722167493096151221381017320147344991331421789379785964440840684363041795410525097564979585773948558651896834067324427900848255265001498890329859444233861478388742393060996236783742654761350763876989363052609107226398858310051497856931093693697981165801539060516895227818925342535261227134364063673285588256280386915163875872231395348293505967057794409379709079685798908660258077792158532257603211711587587586356431658240229896344639704");
454 if (total.setScale(0, RoundingMode.DOWN).equals(total.setScale(0, RoundingMode.DOWN))) {
455 return 0;
456 } else {
457 return 1;
458 }
459 }
460
461 public static void main(String argv[]) {
462 int failures = 0;
463
464 failures += addTests();
465 failures += subtractTests();
466 failures += multiplyTests();
467 failures += divideTests();
468 failures += setScaleTests();
469 failures += toEngineeringStringTests();
470 failures += ulpTests();
471
472 if (failures > 0 ) {
473 throw new RuntimeException("Incurred " + failures + " failures" +
474 " testing the preservation of zero scales.");
475 }
476 }
477 }
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