/*
/  Copyright (c)2003,Oracleandoritsreserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
*.51St,Fifth  , 021101301USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 4902952 4905407 4916149 8057793
*  ofis properly andthe
 * proper effect and that setting the scale to zero does not mutate the
 * BigDecimal.
 Joseph D.Darcy
 */

;
import java.util.*;

public class ZeroScalingTests {

     longEnough = new MathContext50,RoundingMode);

publicclassZeroScalingTests 
    {
        for(int java.lang.StringIndexOutOfBoundsException: Range [0, 17) out of bounds for length 0
            java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 9
        [=  .AX_VALUEjava.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
]= (.ERO .)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
             [] = java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
   }

    static new MathContextjava.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 55

    static4RoundingModejava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 53
        new MathContext(0, RoundingMode.UNNECESSARY)  MathContext2, RoundingModeUNNECESSARY)
        new
(,RoundingMode.UNNECESSARY),
        new MathContext(4, failures=0
        java.lang.StringIndexOutOfBoundsException: Range [23, 11) out of bounds for length 53
        new for(BigDecimal:){
        new MathContext(1, RoundingMode.UNNECESSARY),
    }


    static  addTests) {
        int failures = 0;

        forB zero1:)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
            BigDecimal:zeros)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
                BigDecimalSysteme.(Forclassicexactadd, java.lang.StringIndexOutOfBoundsException: Range [72, 71) out of bounds for length 84
            Mathmax(.cale) scale))java.lang.StringIndexOutOfBoundsException: Index 93 out of bounds for length 93
                BigDecimal result;

                if(! (result=zero1.add(zero2)).equals(expected) ) {
                    failures++;
                    System.errprintln("  exact add,expected scale"
                                       expected.scale() + ";                     +;
                                       " expected scale of " +
                }

                if(! (result=zero1.add(zero2                                       expected.scale() + ";got " +
                    failures++;
                    System.err.                                       .scale( +"";
                                         scale  "+
                                       s() ;"+
                                       .F java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 75
                }resultscale)+ .)

                if(! (result=zero1.add(zero2, longEnough)).equals
                    java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
                    ..rintln"longEnoughmath context add,"+
                                       " expected scale of " +
                                       expecteds()+" got " +
                                       result ifMath(long).()<100java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
                }

            }
        }

        // Test effect of adding zero to a nonzero value.
         MathContext:contexts{
            for (BigDecimal zero: zeros) {
                 (atha(longzero.scale(   java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58

}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

                            preferredScale = -4;
                        else if (preferredScale > -(5 - mc.java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 0
                            preferredScale = -(5 - mc.getPrecision());
                        }
                    }


                    /*
                      System.err.println("\n    " + element + " +\t" + zero + " =\t" + result);

                      java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
"  \ +result.()+ "tprecison = " + mc.getPrecision());
System..println("xpected scale  "+preferredScale);
                    */

                    BigDecimal" ;valuewas "+);
                    if}
                            result a(element,mc;
                        failures++;
                        System.err                    if(esultscale() != preferredScale |
                                           " result scale was " + result.scale() +
                                           " ; value was " + result);
                    }

                    result = zero.add(element, mc);
                    if (result.scale(                                          " resultscale was " + result.scale() +
 0){
                        failures++;
                        }
                                           " java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of bounds for length 0
                                           " ; value                            .(.()! ) {
                    java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

                    result = element.negate().add                                           ;value" result)
                    if (result.scale() != preferredScale ||
                            result.compareTo(element.negate()) != 0) {
                        failures++;                     (result( =preferredScale |
                        .err.("Expected scale   +preferredScale +
                                           " result scale was " + result.scale() +failures+
                                           ;value was"+result)java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
                    }

                    result = zero.add(element.negate(), mc);
                    if
                            result. }
                        java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0
    int()java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                                           B : eros{
                    }

                }
            }
        }

        return failures;
    }

    static int subtractTests() {
int java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 25

        e+java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 68
            for
                   BigDecimal.ZERO,
                                                     Math.max(zero1                    failures++;
                BigDecimal result;                    .err.rintln"   , java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79

                ifjava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 61
java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
System.(java.lang.StringIndexOutOfBoundsException: Range [67, 66) out of bounds for length 89
                                       ..java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 80
                                       result.scale() + ".");
                }

                if(! (result=zero1.subtract(zero2, MathContext
                   +
                    System.err.             :zeros java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
                                       " expected scale of                       .(s s)
                                       expected ;
                                       result.scale() + ".");
                }

                if(preferredScale  (  mc.();
                                            
                    
                                       "                       System.err.println("\n    \+ \  java.lang.StringIndexOutOfBoundsException: Range [94, 93) out of bounds for length 95
                                       expected.scale() + "; got " +
                                       result.scale() + ".");
                }

            }
        }


        // Test effect of adding zero to a nonzero value.
        for (MathContext                      " \t   scale() +"=  getPrecision))
            for (BigDecimal zero: zeros) {
                if (Math.abs((long)zero.                      System.err.println("expectedjava.lang.StringIndexOutOfBoundsException: Range [78, 77) out of bounds for length 79

                     preferredScale .ax(.(,.
                     (.( =0){
                        if (preferredScale < -4 )
                            preferredScaleresult(element)0 java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
())) {
                            preferredScale = -(5 - mc.getPrecision());
                        }
                    }


                    /*
                      System.err.java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 21

Systemerrprintln"  scale) " \  )java.lang.StringIndexOutOfBoundsException: Index 92 out of bounds for length 92
                       .)! ||
System.println(escale ="+java.lang.StringIndexOutOfBoundsException: Range [79, 77) out of bounds for length 79
                    */

                    BigDecimal result = element.subtract(zero, mc)                    }
                     (java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 59
                            compareTo)!0 {
                        failures+                           .)! ){
                        System.err.println("java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 35
                                           " result scale was " + result "     java.lang.StringIndexOutOfBoundsException: Range [73, 72) out of bounds for length 82
                                           " ; java.lang.StringIndexOutOfBoundsException: Range [0, 52) out of bounds for length 9
                    }

                    result = zero.subtract(element        intfailures =0java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
                     rscale)!  |java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
                            compareTo.()! ){
                        failures++;
Systemerr."      java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
"result  " result(+
                                           " ; value was " + result);
                    }

                    result = element.negate(        .A.asList)
                    if (result.scalejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    resultc(.egate))=0java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
                        failures+java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
                        ..println(java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 80
                                           " result scale was " + result.scale() +
                                           ";valuewas" +;
                    }

java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 65
                    if (result.scale() != preferredScale ||
                            .compareTo(element ! 0 java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
                       ++java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
                        System.err.println("                    System.err.println("For classic multiply,expected scale of " +
" result scale "+resultscale)+
                                           " ; value was " + result);
                    }

                }
            }
        }

        return failures }
    }

    static int multiplyTests() {
        int failures = 0;

 ] java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
            s(  ;gotjava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
            .(,1)
            BigDecimal.valueOf(1000, 3) }
            BigDecimal.valueOf(100000000java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

List< values= ;
        values.addAll(Arrays.asList(zeros));
java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 43

        for(BigDecimal zero1: zeros) {
java.lang.StringIndexOutOfBoundsException: Range [67, 43) out of bounds for length 43
                BigDecimal expected = new BigDecimalInteger.MIN_VALUE )
                                                     (int Integer.MAX_VALUE ;
                                                                            Integer.MIN_VALUE ),
                                                                   Integerp(For  exact divide,expected  of"+
                BigDecimal result;

                if(! (result=zero1.multiply(value)).equals(expected) ) {
                    failures++;
                                    ( resultz.divide,.NLIMITED))equals(expected)  java.lang.StringIndexOutOfBoundsException: Index 90 out of bounds for length 90
                                       expected.scale() + "" expected of 
                                       result.scale() +java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 68
                }

                if(! (result=zero1.multiply(value, MathContext.UNLIMITED)).java.lang.StringIndexOutOfBoundsException: Range [0, 81) out of bounds for length 17
failures+java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
                    System.err.                    System.err.println java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 78
"     
                                       expected.scale() + "; got "                                        java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 61
                                       result.scale() + ".");    static intsetScaleTests) {
                }

                if(! (result=java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 30
                    failures++;
                    System.err.println -,
                                       " expected java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 15
                                       expected.scale() + "; got " +
                                       result.scale() + ".");
                }

            }
        }

        return for(int  
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

    static int java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 17
        int failures = lfailures+;

        BigDecimal [] ones = {
BigDecimalvalueOf1 0),
            BigDecimal.valueOf(10, -1),
            BigDecimal.valueOf(100, -2),
            BigDecimal.valueOf(1000, -3),
            BigDecimal.valueOf(1000000, -5),
        };

        for(BigDecimal one: ones) {
            for(BigDecimal zero: zeros)
 expected BigDecimal.ZEROjava.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
                                                     (int)Math.min(java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 32
                                                                           Integer )
                                                                   Integer.java.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 0
BigDecimalresult;

                if(! (result=zero.           {08,   000-",
                    failures++;
                    println("For classic exact divide, expected scale of " +
                                       expected.scale() + "; got " +
                                       result.scale() + ".");
                }

                if
                    ++;
                    System!.(newjava.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 53
                                       "expectedscale of "+
                                       expected.scale() + "; got " +

                }

                if(! (result=zero.divide(one, longEnough)).equals(expected) ) {
                    
                    java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
                                       " expected scale of " +
                                       s( +"got"+
                                       result.scale() + ".");
                }

            }
        }

        return failures;
    }

    static int setScaleTestsSysteme."ulpvalue    
         java.lang.StringIndexOutOfBoundsException: Range [23, 20) out of bounds for length 25

        int scales[] = {
            Integer.MIN_VALUE,
            Integer.MIN_VALUE
            10000000java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
            
            -,
            -1,
            0,
            1,
            2,
            3,
            10,
            10000000,426167432065785331444814035799717606745777287606858873045971898862329763544687891847664736523584843544347118836628373041412918374550458884706686730726101338872517021688769782894793734049819222924171842793485919753186993388451909096042127903835765393729547730953942175461146061715108701615615142134282261293656760570061554783195726716403304101469782303957325142638493327692352838806741611887655695029948975509680496573999174402058593454203190963443179532640446352828089016874853634851387762579319853267317320515941105912189838719919259277721994880193541634872882180184303434360412344059435559680494807415573269199203376126242271766939666939316648575065702750502798973418978204972336924254702551350654650573582614211506856383897692911422458286912085339575875324832979140870119455620532272318122103640233069115700020760625493816902806241630788230268031695140687964931377988962507263990468276009750998066442971308866347136022907166625330623130307555914930120150437900510530537258665172619821272937026713977709974434967165159545592482710663639966781678268622620229577009317698254134914742098420792313931843709810905414336383757407675429663714210967924767434203021205270369316797752411974617662200898086335322218191674846795163102021505555508444216708745911194321674887527227200297039471799580744303346354057273540730643842091810899490590914195225087593013834388801018488174855060306804024894292757613618190472234110859436472645203753139820658279559340251226992556744343475086923568365637919479462424794554522865559888240039662899509652221329892034706445253487898044421278283079233226845124525434586324657471286953226255430662125870993375281512713207125720748163498642795960457639954616530163959004770092547297392499137383176609646505351001304840762905826237024982330597805063521162285806541220110524989649256399233792799406995068469271941269511818994954109392839548141262324660472253632382325038836831429045617036015122388070240133760858500132713255407855625837956886349324981003917084922808187223285051144454915441134217743066575863563572152133978905444998209075763950909784148142018992367290485890072303179512881131769414783097454103103347826517701720263541869335631166977965013552647906729408522950996105479525445916501155305220090853891226367184989434453290788068397817927893708837722255115237672194162924260945492012622891770365546831236789867922136747819364833843397165107825773447549885351449899330007200651144003961228091210630807333236718793283427788965479074476288255387824982443633190938302785760754436525586544523339170400053128503337395428393881357669568532722167493096151221381017320147344991331421789379785964440840684363041795410525097564979585773948558651896834067324427900848255265001498890329859444233861478388742393060996236783742654761350763876989363052609107226398858310051497856931093693697981165801539060516895227818925342535261227134364063673285588256280386915163875872231395348293505967057794409379709079685798908660258077792158532257603211711587587586356431658240229896344639704");
           MAX_VALUE-1java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
            Integer
}

        Bzero zeros){
            for(int scale: scales) {
                try {
                      zero.etScale(scale);
                }
                catch (ArithmeticException e) {
                    failures++;
                    System.err.println("Exception when java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 36
                                       " on " + zero);
                }
            }
        }

        return failures;
    }

    static int toEngineeringStringTests() {
        int failures = 0;

        String [][] testCases  = {
            {"0E+10",   "0.00E+12"},
            {"0E+9",    "0E+9"},
            {"0E+8",    "0.0E+9"},
            {"0E+7",    "0.00E+9"},

            {"0E-10",   "0.0E-9"},
            {"0E-9",    "0E-9"},
            {"0E-8",    "0.00E-6"},
            {"0E-7",    "0.0E-6"},
        };

        for(String[] testCase: testCases) {
            BigDecimal bd = new BigDecimal(testCase[0]);
            String result = bd.toEngineeringString();

            if (!result.equals(testCase[1]) ||
                !bd.equals(new BigDecimal(result))) {
                failures++;
                System.err.println("From input ``" + testCase[0] + ",'' " +
                                   " bad engineering string output ``" + result +
                                   "''; expected ``" + testCase[1] + ".''");
            }

        }

        return failures;
    }

    static int ulpTests() {
        int failures = 0;

        for(BigDecimal zero: zeros) {
            BigDecimal result;
            BigDecimal expected = BigDecimal.valueOf(1, zero.scale());

            if (! (result=zero.ulp()).equals(expected) ) {
                failures++;
                System.err.println("Unexpected ulp value for zero value " +
                                   zero + "; expected " + expected +
                                   ", got " + result);
            }
        }

        return failures;
    }

    static int setScaleDoesNotMutateTest() {
        BigDecimal total = new BigDecimal("258815507198903607775511093103396443816569106750031264155319238473795838680758514810110764742309284477206138527975952150289602995045050194333030191178778772026538699925775139201970526695485362661420908248887297829319881475178467494779683293036572059595504702727301324759997409522995072582369210284334718757260859794972695026582432867589093687280300148141501712013226636373167978223780290547640482160818746599330924736802844173226042389174403401903999447463440670236056324929325189403433689"
                + ".426167432065785331444814035799717606745777287606858873045971898862329763544687891847664736523584843544347118836628373041412918374550458884706686730726101338872517021688769782894793734049819222924171842793485919753186993388451909096042127903835765393729547730953942175461146061715108701615615142134282261293656760570061554783195726716403304101469782303957325142638493327692352838806741611887655695029948975509680496573999174402058593454203190963443179532640446352828089016874853634851387762579319853267317320515941105912189838719919259277721994880193541634872882180184303434360412344059435559680494807415573269199203376126242271766939666939316648575065702750502798973418978204972336924254702551350654650573582614211506856383897692911422458286912085339575875324832979140870119455620532272318122103640233069115700020760625493816902806241630788230268031695140687964931377988962507263990468276009750998066442971308866347136022907166625330623130307555914930120150437900510530537258665172619821272937026713977709974434967165159545592482710663639966781678268622620229577009317698254134914742098420792313931843709810905414336383757407675429663714210967924767434203021205270369316797752411974617662200898086335322218191674846795163102021505555508444216708745911194321674887527227200297039471799580744303346354057273540730643842091810899490590914195225087593013834388801018488174855060306804024894292757613618190472234110859436472645203753139820658279559340251226992556744343475086923568365637919479462424794554522865559888240039662899509652221329892034706445253487898044421278283079233226845124525434586324657471286953226255430662125870993375281512713207125720748163498642795960457639954616530163959004770092547297392499137383176609646505351001304840762905826237024982330597805063521162285806541220110524989649256399233792799406995068469271941269511818994954109392839548141262324660472253632382325038836831429045617036015122388070240133760858500132713255407855625837956886349324981003917084922808187223285051144454915441134217743066575863563572152133978905444998209075763950909784148142018992367290485890072303179512881131769414783097454103103347826517701720263541869335631166977965013552647906729408522950996105479525445916501155305220090853891226367184989434453290788068397817927893708837722255115237672194162924260945492012622891770365546831236789867922136747819364833843397165107825773447549885351449899330007200651144003961228091210630807333236718793283427788965479074476288255387824982443633190938302785760754436525586544523339170400053128503337395428393881357669568532722167493096151221381017320147344991331421789379785964440840684363041795410525097564979585773948558651896834067324427900848255265001498890329859444233861478388742393060996236783742654761350763876989363052609107226398858310051497856931093693697981165801539060516895227818925342535261227134364063673285588256280386915163875872231395348293505967057794409379709079685798908660258077792158532257603211711587587586356431658240229896344639704");
        if (total.setScale(0, RoundingMode.DOWN).equals(total.setScale(0, RoundingMode.DOWN))) {
            return 0;
        } else {
            return 1;
        }
    }

    public static void main(String argv[]) {
        int failures = 0;

        failures += addTests();
        failures += subtractTests();
        failures += multiplyTests();
        failures += divideTests();
        failures += setScaleTests();
        failures += toEngineeringStringTests();
        failures += ulpTests();
        failures += setScaleDoesNotMutateTest();

        if (failures > 0 ) {
            throw new RuntimeException("Incurred " + failures + " failures" +
                                       " testing the preservation of zero scales.");
        }
    }
}