/Tests/Foundation/CPDecimalTest.j

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  1. /*
    2. 

  2.  * CPDecimalTest.j
    3. 

  3.  * Foundation
    4. 

  4.  *
    5. 

  5.  * Created by Stephen Paul Ierodiaconou
    6. 

  6.  *
    7. 

  7.  * This library is free software; you can redistribute it and/or
    8. 

  8.  * modify it under the terms of the GNU Lesser General Public
    9. 

  9.  * License as published by the Free Software Foundation; either
    10. 

  10.  * version 2.1 of the License, or (at your option) any later version.
    11. 

  11.  *
    12. 

  12.  * This library is distributed in the hope that it will be useful,
    13. 

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    14. 

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    15. 

  15.  * Lesser General Public License for more details.
    16. 

  16.  *
    17. 

  17.  * You should have received a copy of the GNU Lesser General Public
    18. 

  18.  * License along with this library; if not, write to the Free Software
    19. 

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    20. 

  20.  */
    21. 

  21. 

  22. @import <Foundation/CPString.j>
    23. 

  23. @import <Foundation/CPDecimal.j>
    24. 

  24. 

  25. @implementation CPDecimalTest : OJTestCase
    26. 

  26. 

  27. - (void)testInitialisers
    28. 

  28. {
    29. 

  29.     // max digits
    30. 

  30.     [self assertNotNull:CPDecimalMakeWithString(@"9999999999999999999999999999999999") message:"CPDecimalMakeWithString() Tmx1: max digits string"];
    31. 

  31.     [self assertNotNull:CPDecimalMakeWithString(@"-1111111111111111111111111111111111") message:"CPDecimalMakeWithString() Tmx2: negative max digits string"];
    32. 

  32. 

  33.     // too big digit, round
    34. 

  34.     var dcm = CPDecimalMakeWithString(@"11111111111111111111111111111111111111111");
    35. 

  35.     [self assertNotNull:dcm message:"CPDecimalMakeWithString() Tb1: mantissa rounding string"];
    36. 

  36.     [self assert:3 equals:dcm._exponent message:"CPDecimalMakeWithString() Tb1: exponent"];
    37. 

  37.     [self assert:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] equals:dcm._mantissa message:"CPDecimalMakeWithString() Tb1: mantissa"];
    38. 

  38.     [self assert:NO equals:dcm._isNegative message:"CPDecimalMakeWithString() Tb1: sign"];
    39. 

  39.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithString() Tb1: NaN is incorrectly set"];
    40. 

  40. 

  41.     // format tests
    42. 

  42.     dcm = CPDecimalMakeWithString(@"+0.01e+1");
    43. 

  43.     [self assertNotNull:dcm message:"CPDecimalMakeWithString() Tf1: mantissa rounding string"];
    44. 

  44.     [self assert:-1 equals:dcm._exponent message:"CPDecimalMakeWithString() Tf1: exponent"];
    45. 

  45.     [self assert:[1] equals:dcm._mantissa message:"CPDecimalMakeWithString() Tf1: mantissa"];
    46. 

  46.     [self assert:NO equals:dcm._isNegative message:"CPDecimalMakeWithString() Tf1: sign"];
    47. 

  47.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithString() Tf1: NaN is incorrectly set"];
    48. 

  48. 

  49.     dcm = CPDecimalMakeWithString(@"+99e-5");
    50. 

  50.     [self assertNotNull:dcm message:"CPDecimalMakeWithString() Tf2: mantissa rounding string"];
    51. 

  51.     [self assert:-5 equals:dcm._exponent message:"CPDecimalMakeWithString() Tf2: exponent"];
    52. 

  52.     [self assert:[9,9] equals:dcm._mantissa message:"CPDecimalMakeWithString() Tf2: mantissa"];
    53. 

  53.     [self assert:NO equals:dcm._isNegative message:"CPDecimalMakeWithString() Tf2: sign"];
    54. 

  54.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithString() Tf2: NaN is incorrectly set"];
    55. 

  55. 

  56.     dcm = CPDecimalMakeWithString(@"-1234.5678e100");
    57. 

  57.     [self assertNotNull:dcm message:"CPDecimalMakeWithString() Tf3: mantissa rounding string"];
    58. 

  58.     [self assert:96 equals:dcm._exponent message:"CPDecimalMakeWithString() Tf3: exponent"];
    59. 

  59.     [self assert:[1, 2, 3, 4, 5, 6, 7, 8] equals:dcm._mantissa message:"CPDecimalMakeWithString() Tf3: mantissa"];
    60. 

  60.     [self assert:YES equals:dcm._isNegative message:"CPDecimalMakeWithString() Tf3: sign"];
    61. 

  61.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithString() Tf3: NaN is incorrectly set"];
    62. 

  62. 

  63.     dcm = CPDecimalMakeWithString(@"0.00000000000000000000000001");
    64. 

  64.     [self assertNotNull:dcm message:"CPDecimalMakeWithString() Tf4: mantissa rounding string"];
    65. 

  65.     [self assert:-26 equals:dcm._exponent message:"CPDecimalMakeWithString() Tf4: exponent"];
    66. 

  66.     [self assert:[1] equals:dcm._mantissa message:"CPDecimalMakeWithString() Tf4: mantissa"];
    67. 

  67.     [self assert:NO equals:dcm._isNegative message:"CPDecimalMakeWithString() Tf4: sign"];
    68. 

  68.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithString() Tf4: NaN is incorrectly set"];
    69. 

  69. 

  70.     dcm = CPDecimalMakeWithString(@"000000000000000000");
    71. 

  71.     [self assertFalse:dcm._isNaN message:"CPDecimalMakeWithString() Tf5: Should be valid"];
    72. 

  72. 

  73.     // too large return NaN
    74. 

  74.     dcm = CPDecimalMakeWithString(@"111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111");
    75. 

  75.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() To1: number overflow handling. Should return NaN"];
    76. 

  76.     dcm = CPDecimalMakeWithString(@"-1e1000");
    77. 

  77.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() To2: exponent overflow not caught. Should return NaN"];
    78. 

  78.     dcm = CPDecimalMakeWithString(@"-1e-2342");
    79. 

  79.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() To3: exponent underflow not caught. Should return NaN"];
    80. 

  80. 

  81.     // Tests for invalid strings
    82. 

  82.     dcm = CPDecimalMakeWithString(@"abc");
    83. 

  83.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti1: catch of invalid number string. Should return NaN"];
    84. 

  84.     dcm = CPDecimalMakeWithString(@"123a");
    85. 

  85.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti2: catch of invalid number string. Should return NaN"];
    86. 

  86.     dcm = CPDecimalMakeWithString(@"12.7e");
    87. 

  87.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti3: catch of invalid number string. Should return NaN"];
    88. 

  88.     dcm = CPDecimalMakeWithString(@"e");
    89. 

  89.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti4: catch of invalid number string. Should return NaN"];
    90. 

  90.     dcm = CPDecimalMakeWithString(@"12 ");
    91. 

  91.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti5: catch of invalid number string. Should return NaN"];
    92. 

  92.     dcm = CPDecimalMakeWithString(@"1 2 3");
    93. 

  93.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti6: catch of invalid number string. Should return NaN"];
    94. 

  94.     dcm = CPDecimalMakeWithString(@"e10");
    95. 

  95.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti7: catch of invalid number string. Should return NaN"];
    96. 

  96.     dcm = CPDecimalMakeWithString(@"123ee");
    97. 

  97.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithString() Ti8: catch of invalid number string. Should return NaN"];
    98. 

  98. 

  99.     // this behaviour has changed to match Cocoa. Making a decimal with a leading zero should return the decimal.
    100. 

  100.     dcm = CPDecimalMakeWithString(@"0001");
    101. 

  101.     [self assertFalse:dcm._isNaN message:"CPDecimalMakeWithString() Ti9: Numbers with leading zeros are valid numbers. Expected False when evaluating against NaN, got True."];
    102. 

  102.     dcm = CPDecimalMakeWithString(@"-0001");
    103. 

  103.     [self assertFalse:dcm._isNaN message:"CPDecimalMakeWithString() Ti10: Numbers with leading zeros are valid numbers. Expected False when evaluating against NaN, got True."];
    104. 

  104. 

  105.     //test make with parts
    106. 

  106.     dcm = CPDecimalMakeWithParts(10127658, 2);
    107. 

  107.     [self assert:2 equals:dcm._exponent message:"CPDecimalMakeWithParts() Tmp1: exponent"];
    108. 

  108.     [self assert:[1, 0, 1, 2, 7, 6, 5, 8] equals:dcm._mantissa message:"CPDecimalMakeWithParts() Tmp1: mantissa"];
    109. 

  109.     [self assert:NO equals:dcm._isNegative message:"CPDecimalMakeWithParts() Tmp1: sign"];
    110. 

  110.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithParts() Tmp1: NaN is incorrectly set"];
    111. 

  111.     dcm = CPDecimalMakeWithParts(-1000000, 0);
    112. 

  112.     [self assert:6 equals:dcm._exponent message:"CPDecimalMakeWithParts() Tmp2: exponent"];
    113. 

  113.     [self assert:[1] equals:dcm._mantissa message:"CPDecimalMakeWithParts() Tmp2: mantissa"];
    114. 

  114.     [self assert:YES equals:dcm._isNegative message:"CPDecimalMakeWithParts() Tmp2: sign"];
    115. 

  115.     [self assert:NO equals:dcm._isNaN message:"CPDecimalMakeWithParts() Tmp2: NaN is incorrectly set"];
    116. 

  116. 

  117.     dcm = CPDecimalMakeWithParts(1, 10000);
    118. 

  118.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithParts() Tmp3: exponent overflow not caught. Should return NaN"];
    119. 

  119.     dcm = CPDecimalMakeWithParts(-1, -1000);
    120. 

  120.     [self assertTrue:dcm._isNaN message:"CPDecimalMakeWithParts() Tmp4: exponent underflow not caught. Should return NaN"];
    121. 

  121. }
    122. 

  122. 

  123. - (void)testZeros
    124. 

  124. {
    125. 

  125.     var dcm = CPDecimalMakeWithString(@"0");
    126. 

  126.     [self assertTrue:CPDecimalIsZero(dcm) message:"CPDecimalMakeWithString(0) and CPDecimalIsZero()"];
    127. 

  127.     dcm = CPDecimalMakeWithString(@"-0.000000000000e-0");
    128. 

  128.     [self assertTrue:CPDecimalIsZero(dcm) message:"CPDecimalMakeWithString(0) and CPDecimalIsZero()"];
    129. 

  129.     dcm = CPDecimalMakeWithParts(0,0);
    130. 

  130.     [self assertTrue:CPDecimalIsZero(dcm) message:"CPDecimalMakeWithParts(0)"];
    131. 

  131.     dcm = CPDecimalMakeZero();
    132. 

  132.     [self assertTrue:CPDecimalIsZero(dcm) message:"CPDecimalMakeZero()"];
    133. 

  133. }
    134. 

  134. 

  135. - (void)testOnes
    136. 

  136. {
    137. 

  137.     var dcm = CPDecimalMakeOne();
    138. 

  138.     [self assertTrue:CPDecimalIsOne(dcm) message:"CPDecimalMakeOne() and CPDecimalIsOne()"];
    139. 

  139.     dcm = CPDecimalMakeWithString(@"1.00000e1");
    140. 

  140.     [self assertTrue:CPDecimalIsOne(dcm) message:"CPDecimalMakeWithString(1)"];
    141. 

  141.     dcm = CPDecimalMakeWithString(@"0.00100000e-3");
    142. 

  142.     [self assertTrue:CPDecimalIsOne(dcm) message:"CPDecimalMakeWithString(1)"];
    143. 

  143.     [self assert:1 equals:dcm._mantissa[0] message:"CPDecimalMakeWithString(1)"];
    144. 

  144. }
    145. 

  145. 

  146. - (void)testNormalize
    147. 

  147. {
    148. 

  148.     var dcm1 = CPDecimalMakeWithString( @"200" ),
    149. 

  149.         dcm2 = CPDecimalMakeWithString( @"2" );
    150. 

  150.     [self assert:0 equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tn1:call" ];
    151. 

  151.     [self assert:[2,0,0] equals:dcm1._mantissa message:"CPDecimalNormalise() Tn1: mantissa"];
    152. 

  152.     [self assert:0 equals:dcm1._exponent message:"CPDecimalNormalise() Tn1: exponent"];
    153. 

  153.     [self assert:[2] equals:dcm2._mantissa message:"CPDecimalNormalise() Tn1: mantissa"];
    154. 

  154.     [self assert:0 equals:dcm2._exponent message:"CPDecimalNormalise() Tn1: exponent"];
    155. 

  155. 

  156.     dcm1 = CPDecimalMakeWithString( @"0.001" );
    157. 

  157.     dcm2 = CPDecimalMakeWithString( @"123" );
    158. 

  158.     [self assert:0 equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tn2:call" ];
    159. 

  159.     [self assert:[1] equals:dcm1._mantissa message:"CPDecimalNormalise() Tn2: mantissa"];
    160. 

  160.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalNormalise() Tn2: exponent"];
    161. 

  161.     [self assert:[1,2,3,0,0,0] equals:dcm2._mantissa message:"CPDecimalNormalise() Tn2: mantissa"];
    162. 

  162.     [self assert:-3 equals:dcm2._exponent message:"CPDecimalNormalise() Tn2: exponent"];
    163. 

  163. 

  164.     dcm1 = CPDecimalMakeWithString( @"123" );
    165. 

  165.     dcm2 = CPDecimalMakeWithString( @"0.001" );
    166. 

  166.     [self assert:0 equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tn3:call" ];
    167. 

  167.     [self assert:[1] equals:dcm2._mantissa message:"CPDecimalNormalise() Tn3: mantissa"];
    168. 

  168.     [self assert:-3 equals:dcm2._exponent message:"CPDecimalNormalise() Tn3: exponent"];
    169. 

  169.     [self assert:[1,2,3,0,0,0] equals:dcm1._mantissa message:"CPDecimalNormalise() Tn3: mantissa"];
    170. 

  170.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalNormalise() Tn3: exponent"];
    171. 

  171. 

  172.     dcm1 = CPDecimalMakeWithString( @"-1e-7" );
    173. 

  173.     dcm2 = CPDecimalMakeWithString( @"-21e-8" );
    174. 

  174.     [self assert:0 equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tn4:call" ];
    175. 

  175.     [self assert:[1,0] equals:dcm1._mantissa message:"CPDecimalNormalise() Tn4: mantissa"];
    176. 

  176.     [self assert:-8 equals:dcm1._exponent message:"CPDecimalNormalise() Tn4: exponent"];
    177. 

  177.     [self assert:[2, 1] equals:dcm2._mantissa message:"CPDecimalNormalise() Tn4: mantissa"];
    178. 

  178.     [self assert:-8 equals:dcm2._exponent message:"CPDecimalNormalise() Tn4: exponent"];
    179. 

  179. 

  180.     // these will result in one number becoming zero.
    181. 

  181.     dcm1 = CPDecimalMakeWithString( @"1e0" );
    182. 

  182.     dcm2 = CPDecimalMakeWithString( @"10000000000000000000000000000000000001e2" );
    183. 

  183.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tnp1:call should ret LossOfPrecision" ];
    184. 

  184.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalNormalise() Tnp1: mantissa"];
    185. 

  185.     [self assert:0 equals:dcm1._exponent message:"CPDecimalNormalise() Tnp1: exponent"];
    186. 

  186.     [self assert:[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1] equals:dcm2._mantissa message:"CPDecimalNormalise() Tnp1: mantissa"];
    187. 

  187.     [self assert:2 equals:dcm2._exponent message:"CPDecimalNormalise() Tnp1: exponent"];
    188. 

  188. 

  189.     dcm1 = CPDecimalMakeWithString( @"10000000000000000000000000000000000001e2" );
    190. 

  190.     dcm2 = CPDecimalMakeWithString( @"1e0" );
    191. 

  191.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tnp2:call should ret LossOfPrecision" ];
    192. 

  192.     [self assert:[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1] equals:dcm1._mantissa message:"CPDecimalNormalise() Tnp2: mantissa"];
    193. 

  193.     [self assert:2 equals:dcm1._exponent message:"CPDecimalNormalise() Tnp2:exponent"];
    194. 

  194.     [self assert:[0] equals:dcm2._mantissa message:"CPDecimalNormalise() Tnp2: mantissa"];
    195. 

  195.     [self assert:0 equals:dcm2._exponent message:"CPDecimalNormalise() Tnp2: exponent"];
    196. 

  196. 

  197.     dcm1 = CPDecimalMakeWithString( @"10000000000000000000000000000000000001e127" );
    198. 

  198.     dcm2 = CPDecimalMakeWithString( @"1e0" );
    199. 

  199.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tnp3:call should ret LossOfPrecision" ];
    200. 

  200.     [self assert:[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1] equals:dcm1._mantissa message:"CPDecimalNormalise() Tnp3: mantissa"];
    201. 

  201.     [self assert:127 equals:dcm1._exponent message:"CPDecimalNormalise() Tnp3: exponent"];
    202. 

  202.     [self assert:[0] equals:dcm2._mantissa message:"CPDecimalNormalise() Tnp3: mantissa"];
    203. 

  203.     [self assert:0 equals:dcm2._exponent message:"CPDecimalNormalise() Tnp3: exponent"];
    204. 

  204. 

  205.     dcm1 = CPDecimalMakeWithString( @"1e-3" );
    206. 

  206.     dcm2 = CPDecimalMakeWithString( @"1e36" );
    207. 

  207.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalNormalize(dcm1,dcm2,CPRoundDown) message:"CPDecimalNormalise() Tnp4:call should ret LossOfPrecision" ];
    208. 

  208.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalNormalise() Tnp4: mantissa"];
    209. 

  209.     [self assert:0 equals:dcm1._exponent message:"CPDecimalNormalise() Tnp4: exponent"];
    210. 

  210.     [self assert:[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] equals:dcm2._mantissa message:"CPDecimalNormalise() Tnp4: mantissa"];
    211. 

  211.     [self assert:-1 equals:dcm2._exponent message:"CPDecimalNormalise() Tnp4: exponent"];
    212. 

  212. }
    213. 

  213. 

  214. 

  215. - (void)testRound
    216. 

  216. {
    217. 

  217.     var dcm = CPDecimalMakeWithString(@"0.00123");
    218. 

  218.     CPDecimalRound(dcm,dcm,3,CPRoundUp);
    219. 

  219.     [self assert:[2] equals:dcm._mantissa message:"CPDecimalRound() Tr1: mantissa"];
    220. 

  220.     [self assert:-3 equals:dcm._exponent message:"CPDecimalRound() Tr1: exponent"];
    221. 

  221. 

  222.     // plain
    223. 

  223.     var dcm1 = CPDecimalMakeZero();
    224. 

  224.     dcm = CPDecimalMakeWithString(@"123.456");
    225. 

  225.     CPDecimalRound(dcm1,dcm,0,CPRoundPlain);
    226. 

  226.     [self assert:[1,2,3] equals:dcm1._mantissa message:"CPDecimalRound() Tp1: mantissa"];
    227. 

  227.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tp1: exponent"];
    228. 

  228. 

  229.     CPDecimalRound(dcm1,dcm,2,CPRoundPlain);
    230. 

  230.     [self assert:[1,2,3,4,6] equals:dcm1._mantissa message:"CPDecimalRound() Tp2: mantissa"];
    231. 

  231.     [self assert:-2 equals:dcm1._exponent message:"CPDecimalRound() Tp2: exponent"];
    232. 

  232. 

  233.     CPDecimalRound(dcm1,dcm,-2,CPRoundPlain);
    234. 

  234.     [self assert:[1] equals:dcm1._mantissa message:"CPDecimalRound() Tp3: mantissa"];
    235. 

  235.     [self assert:2 equals:dcm1._exponent message:"CPDecimalRound() Tp3: exponent"];
    236. 

  236. 

  237.     CPDecimalRound(dcm1,dcm,-4,CPRoundPlain);
    238. 

  238.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalRound() Tp4: mantissa"];
    239. 

  239.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tp4: exponent"];
    240. 

  240. 

  241.     CPDecimalRound(dcm1,dcm,6,CPRoundPlain);
    242. 

  242.     [self assert:[1,2,3,4,5,6] equals:dcm1._mantissa message:"CPDecimalRound() Tp5: mantissa"];
    243. 

  243.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalRound() Tp5: exponent"];
    244. 

  244. 

  245.     // down
    246. 

  246.     CPDecimalRound(dcm1,dcm,0,CPRoundDown);
    247. 

  247.     [self assert:[1,2,3] equals:dcm1._mantissa message:"CPDecimalRound() Td1: mantissa"];
    248. 

  248.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Td1: exponent"];
    249. 

  249. 

  250.     CPDecimalRound(dcm1,dcm,2,CPRoundDown);
    251. 

  251.     [self assert:[1,2,3,4,5] equals:dcm1._mantissa message:"CPDecimalRound() Td2: mantissa"];
    252. 

  252.     [self assert:-2 equals:dcm1._exponent message:"CPDecimalRound() Td2: exponent"];
    253. 

  253. 

  254.     CPDecimalRound(dcm1,dcm,-2,CPRoundDown);
    255. 

  255.     [self assert:[1] equals:dcm1._mantissa message:"CPDecimalRound() Td3: mantissa"];
    256. 

  256.     [self assert:2 equals:dcm1._exponent message:"CPDecimalRound() Td3: exponent"];
    257. 

  257. 

  258.     CPDecimalRound(dcm1,dcm,-4,CPRoundDown);
    259. 

  259.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalRound() Td4: mantissa"];
    260. 

  260.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Td4: exponent"];
    261. 

  261. 

  262.     CPDecimalRound(dcm1,dcm,6,CPRoundDown);
    263. 

  263.     [self assert:[1,2,3,4,5,6] equals:dcm1._mantissa message:"CPDecimalRound() Td5: mantissa"];
    264. 

  264.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalRound() Td5: exponent"];
    265. 

  265. 

  266.     // up
    267. 

  267.     CPDecimalRound(dcm1,dcm,0,CPRoundUp);
    268. 

  268.     [self assert:[1,2,4] equals:dcm1._mantissa message:"CPDecimalRound() Tu1: mantissa"];
    269. 

  269.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tu1: exponent"];
    270. 

  270. 

  271.     CPDecimalRound(dcm1,dcm,2,CPRoundUp);
    272. 

  272.     [self assert:[1,2,3,4,6] equals:dcm1._mantissa message:"CPDecimalRound() Tu2: mantissa"];
    273. 

  273.     [self assert:-2 equals:dcm1._exponent message:"CPDecimalRound() Tu2: exponent"];
    274. 

  274. 

  275.     CPDecimalRound(dcm1,dcm,-2,CPRoundUp);
    276. 

  276.     [self assert:[2] equals:dcm1._mantissa message:"CPDecimalRound() Tu3: mantissa"];
    277. 

  277.     [self assert:2 equals:dcm1._exponent message:"CPDecimalRound() Tu3: exponent"];
    278. 

  278. 

  279.     CPDecimalRound(dcm1,dcm,-4,CPRoundUp);
    280. 

  280.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalRound() Tu4: mantissa"];
    281. 

  281.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tu4: exponent"];
    282. 

  282. 

  283.     CPDecimalRound(dcm1,dcm,6,CPRoundUp);
    284. 

  284.     [self assert:[1,2,3,4,5,6] equals:dcm1._mantissa message:"CPDecimalRound() Tu5: mantissa"];
    285. 

  285.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalRound() Tu5: exponent"];
    286. 

  286. 

  287.     // bankers
    288. 

  288.     CPDecimalRound(dcm1,dcm,0,CPRoundBankers);
    289. 

  289.     [self assert:[1,2,3] equals:dcm1._mantissa message:"CPDecimalRound() Tb1: mantissa"];
    290. 

  290.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tb1: exponent"];
    291. 

  291. 

  292.     CPDecimalRound(dcm1,dcm,2,CPRoundBankers);
    293. 

  293.     [self assert:[1,2,3,4,6] equals:dcm1._mantissa message:"CPDecimalRound() Tb2: mantissa"];
    294. 

  294.     [self assert:-2 equals:dcm1._exponent message:"CPDecimalRound() Tb2: exponent"];
    295. 

  295. 

  296.     CPDecimalRound(dcm1,dcm,-2,CPRoundBankers);
    297. 

  297.     [self assert:[1] equals:dcm1._mantissa message:"CPDecimalRound() Tb3: mantissa"];
    298. 

  298.     [self assert:2 equals:dcm1._exponent message:"CPDecimalRound() Tb3: exponent"];
    299. 

  299. 

  300.     CPDecimalRound(dcm1,dcm,-4,CPRoundBankers);
    301. 

  301.     [self assert:[0] equals:dcm1._mantissa message:"CPDecimalRound() Tb4: mantissa"];
    302. 

  302.     [self assert:0 equals:dcm1._exponent message:"CPDecimalRound() Tb4: exponent"];
    303. 

  303. 

  304.     CPDecimalRound(dcm1,dcm,6,CPRoundBankers);
    305. 

  305.     [self assert:[1,2,3,4,5,6] equals:dcm1._mantissa message:"CPDecimalRound() Tb5: mantissa"];
    306. 

  306.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalRound() Tb5: exponent"];
    307. 

  307. 

  308.     // Noscale
    309. 

  309.     dcm1 = CPDecimalMakeZero();
    310. 

  310.     CPDecimalRound(dcm1,dcm,CPDecimalNoScale,CPRoundPlain);
    311. 

  311.     [self assert:[1,2,3,4,5,6] equals:dcm1._mantissa message:"CPDecimalRound() Tns1: mantissa"];
    312. 

  312.     [self assert:-3 equals:dcm1._exponent message:"CPDecimalRound() Tns1: exponent"];
    313. 

  313. }
    314. 

  314. 

  315. - (void)testCompare
    316. 

  316. {
    317. 

  317.     var dcm1 = CPDecimalMakeWithString(@"75836"),
    318. 

  318.         dcm = CPDecimalMakeWithString(@"75836"),
    319. 

  319.         c = CPDecimalCompare(dcm1,dcm);
    320. 

  320.     [self assert:CPOrderedSame equals:c message:"CPDecimalCompare() Tc1: should be same"];
    321. 

  321. 

  322.     dcm1 = CPDecimalMakeWithString(@"75836");
    323. 

  323.     dcm = CPDecimalMakeWithString(@"75836e-9");
    324. 

  324.     c = CPDecimalCompare(dcm1,dcm);
    325. 

  325.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare() Tc2: should be descending"];
    326. 

  326. 

  327.     dcm1 = CPDecimalMakeWithString(@"823479");
    328. 

  328.     dcm = CPDecimalMakeWithString(@"7082371231252");
    329. 

  329.     c = CPDecimalCompare(dcm1,dcm);
    330. 

  330.     [self assert:CPOrderedAscending equals:c message:"CPDecimalCompare() Tc3: should be descending"];
    331. 

  331. 

  332.     dcm1 = CPDecimalMakeWithString(@"0.00000000002");
    333. 

  333.     dcm = CPDecimalMakeWithString(@"-1e-9");
    334. 

  334.     c = CPDecimalCompare(dcm1,dcm);
    335. 

  335.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare() Tc4: should be descending"];
    336. 

  336. 

  337.     dcm1 = CPDecimalMakeWithString(@"-23412345123e12");
    338. 

  338.     dcm = CPDecimalMakeWithString(@"-1e100");
    339. 

  339.     c = CPDecimalCompare(dcm1,dcm);
    340. 

  340.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare() Tc4: should be descending"];
    341. 

  341. 

  342.     dcm1 = CPDecimalMakeWithString(@"0.0");
    343. 

  343.     dcm = CPDecimalMakeWithString(@"0.5");
    344. 

  344.     c = CPDecimalCompare(dcm1,dcm);
    345. 

  345.     [self assert:CPOrderedAscending equals:c message:"CPDecimalCompare() (0.0, 0.5) should be ascending"];
    346. 

  346. 

  347.     dcm1 = CPDecimalMakeWithString(@"0.0");
    348. 

  348.     dcm = CPDecimalMakeWithString(@"-0.5");
    349. 

  349.     c = CPDecimalCompare(dcm1,dcm);
    350. 

  350.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare() (0, -0.5) should be descending"];
    351. 

  351. 

  352.     dcm1 = CPDecimalMakeZero();
    353. 

  353.     dcm = CPDecimalMakeZero();
    354. 

  354.     c = CPDecimalCompare(dcm1,dcm);
    355. 

  355.     [self assert:CPOrderedSame equals:c message:"CPDecimalCompare(): zeros should be same"];
    356. 

  356. 

  357.     dcm1 = CPDecimalMakeWithString(@"0.0001");
    358. 

  358.     dcm = CPDecimalMakeZero();
    359. 

  359.     c = CPDecimalCompare(dcm1,dcm);
    360. 

  360.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare(): (0.0001, 0) should be descending"];
    361. 

  361. 

  362.     dcm1 = CPDecimalMakeZero();
    363. 

  363.     dcm = CPDecimalMakeWithString(@"0.0001");
    364. 

  364.     c = CPDecimalCompare(dcm1,dcm);
    365. 

  365.     [self assert:CPOrderedAscending equals:c message:"CPDecimalCompare(): (0, 0.0001) should be ascending"];
    366. 

  366. 

  367.     dcm1 = CPDecimalMakeWithString(@"-0.0001");
    368. 

  368.     dcm = CPDecimalMakeZero();
    369. 

  369.     c = CPDecimalCompare(dcm1,dcm);
    370. 

  370.     [self assert:CPOrderedAscending equals:c message:"CPDecimalCompare(): (-0.0001, 0) should be ascending"];
    371. 

  371. 

  372.     dcm1 = CPDecimalMakeZero();
    373. 

  373.     dcm = CPDecimalMakeWithString(@"-0.0001");
    374. 

  374.     c = CPDecimalCompare(dcm1,dcm);
    375. 

  375.     [self assert:CPOrderedDescending equals:c message:"CPDecimalCompare(): (0, -0.0001) should be descending"];
    376. 

  376. }
    377. 

  377. 

  378. - (void)testCompact
    379. 

  379. {
    380. 

  380.     var dcm = CPDecimalMakeZero();
    381. 

  381.     dcm._mantissa = [0,0,0,0, 1,0,0,0,0, 1];
    382. 

  382.     dcm._exponent = 2;
    383. 

  383.     CPDecimalCompact(dcm);
    384. 

  384.     [self assert:2 equals:dcm._exponent message:"CPDecimalCompact() Tcm1: exponent"];
    385. 

  385.     [self assert:[1,0,0,0,0, 1] equals:dcm._mantissa message:"CPDecimalCompact() Tcm1: mantissa"];
    386. 

  386. 

  387.     dcm = CPDecimalMakeZero();
    388. 

  388.     dcm._mantissa = [0,0,0,0, 1,2,0,0,0,0];
    389. 

  389.     dcm._exponent = -4;
    390. 

  390.     dcm._isNegative = YES;
    391. 

  391.     CPDecimalCompact(dcm);
    392. 

  392.     [self assert:0 equals:dcm._exponent message:"CPDecimalCompact() Tcm2: exponent"];
    393. 

  393.     [self assert:[1,2] equals:dcm._mantissa message:"CPDecimalCompact() Tcm2: mantissa"];
    394. 

  394.     [self assert:YES equals:dcm._isNegative message:"CPDecimalCompact() Tcm2: sign"];
    395. 

  395. 

  396.     dcm = CPDecimalMakeZero();
    397. 

  397.     dcm._mantissa = [1,2,0,0,0,0];
    398. 

  398.     dcm._exponent = -1;
    399. 

  399.     CPDecimalCompact(dcm);
    400. 

  400.     [self assert:3 equals:dcm._exponent message:"CPDecimalCompact() Tcm3: exponent"];
    401. 

  401.     [self assert:[1,2] equals:dcm._mantissa message:"CPDecimalCompact() Tcm3: mantissa"];
    402. 

  402.     [self assert:NO equals:dcm._isNegative message:"CPDecimalCompact() Tcm3: sign"];
    403. 

  403.     [self assert:NO equals:dcm._isNaN message:"CPDecimalCompact() Tcm3: NaN is incorrectly set"];
    404. 

  404. 

  405.     dcm = CPDecimalMakeZero();
    406. 

  406.     dcm._mantissa = [8,9,0,0,0,0, 1,2,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
    407. 

  407.     dcm._exponent = -20;
    408. 

  408.     dcm._isNegative = YES;
    409. 

  409.     CPDecimalCompact(dcm);
    410. 

  410.     [self assert:-5 equals:dcm._exponent message:"CPDecimalCompact() Tcm4: exponent"];
    411. 

  411.     [self assert:[8,9,0,0,0,0, 1,2,3] equals:dcm._mantissa message:"CPDecimalCompact() Tcm4: mantissa"];
    412. 

  412.     [self assert:YES equals:dcm._isNegative message:"CPDecimalCompact() Tcm4: sign"];
    413. 

  413.     [self assert:NO equals:dcm._isNaN message:"CPDecimalCompact() Tcm4: NaN is incorrectly set"];
    414. 

  414. }
    415. 

  415. 

  416. - (void)testAdd
    417. 

  417. {
    418. 

  418.     // test addition of positives
    419. 

  419.     var d1 = CPDecimalMakeWithString(@"1"),
    420. 

  420.         d2 = CPDecimalMakeWithParts(1, 0),
    421. 

  421.         dcm = CPDecimalMakeZero(),
    422. 

  422.         i = 50;
    423. 

  423.     while (i--)
    424. 

  424.         [self assert:CPDecimalAdd(d1, d1, d2, CPRoundPlain) equals:CPCalculationNoError message:"CPDecimalAdd() Tap1: addition"];
    425. 

  425.     [self assert:0 equals:d1._exponent message:"CPDecimalAdd() Tap1: exponent"];
    426. 

  426.     [self assert:[5, 1] equals:d1._mantissa message:"CPDecimalAdd() Tap1: mantissa"];
    427. 

  427.     [self assert:NO equals:d1._isNegative message:"CPDecimalAdd() Tap1: sign"];
    428. 

  428.     [self assert:NO equals:d1._isNaN message:"CPDecimalAdd() Tap1: NaN is incorrectly set"];
    429. 

  429. 

  430.     // test addition with negatives
    431. 

  431.     d1 = CPDecimalMakeWithString(@"-1");
    432. 

  432.     d2 = CPDecimalMakeWithString(@"-1e-10");
    433. 

  433.     [self assert:CPCalculationNoError equals:CPDecimalAdd(d1, d1, d2, CPRoundPlain) message:"CPDecimalAdd() Tan1: addition of 2 negatives"];
    434. 

  434.     [self assert:-10 equals:d1._exponent message:"CPDecimalAdd() Tan1: exponent"];
    435. 

  435.     [self assert:[1,0,0,0,0,0,0,0,0,0, 1] equals:d1._mantissa message:"CPDecimalAdd() Tan1: mantissa"];
    436. 

  436.     [self assert:YES equals:d1._isNegative message:"CPDecimalAdd() Tan1: sign"];
    437. 

  437.     [self assert:NO equals:d1._isNaN message:"CPDecimalAdd() Tan1: NaN is incorrectly set"];
    438. 

  438. 

  439.     d1 = CPDecimalMakeWithString(@"-5");
    440. 

  440.     d2 = CPDecimalMakeWithString(@"11");
    441. 

  441.     [self assert:CPCalculationNoError equals:CPDecimalAdd(d1, d1, d2, CPRoundPlain) message:"CPDecimalAdd() Tan2: addition with negatives"];
    442. 

  442.     [self assert:0 equals:d1._exponent message:"CPDecimalAdd() Tan2: exponent"];
    443. 

  443.     [self assert:[6] equals:d1._mantissa message:"CPDecimalAdd() Tan2: mantissa"];
    444. 

  444.     [self assert:NO equals:d1._isNegative message:"CPDecimalAdd() Tan2: sign"];
    445. 

  445.     [self assert:NO equals:d1._isNaN message:"CPDecimalAdd() Tan2: NaN is incorrectly set"];
    446. 

  446. 

  447.     d1 = CPDecimalMakeWithString(@"11");
    448. 

  448.     d2 = CPDecimalMakeWithString(@"-12");
    449. 

  449.     [self assert:CPCalculationNoError equals:CPDecimalAdd(d1, d1, d2, CPRoundPlain) message:"CPDecimalAdd() Tan3: addition with negatives"];
    450. 

  450.     [self assert:0 equals:d1._exponent message:"CPDecimalAdd() Tan3: exponent"];
    451. 

  451.     [self assert:[1] equals:d1._mantissa message:"CPDecimalAdd() Tan3: mantissa"];
    452. 

  452.     [self assert:YES equals:d1._isNegative message:"CPDecimalAdd() Tan3: sign"];
    453. 

  453.     [self assert:NO equals:d1._isNaN message:"CPDecimalAdd() Tan3: NaN is incorrectly set"];
    454. 

  454. 

  455.     // FIXME: test mantissa overflow handling - is there a loss of precision?? not according to gnustep - check cocoa!!!! CPCalculationLossOfPrecision?
    456. 

  456.     d1 = CPDecimalMakeWithString(@"12345");
    457. 

  457.     d2 = CPDecimalMakeWithString(@"99999999999999999999999999999999999999");
    458. 

  458.     [self assert:0 equals:CPDecimalAdd(d1, d1, d2, CPRoundPlain) message:"CPDecimalAdd() Tapc1: addition with mantissa overflow and rounding"];
    459. 

  459.     [self assert:1 equals:d1._exponent message:"CPDecimalAdd() Tapc1: exponent"];
    460. 

  460.     [self assert:[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1,2,3,4] equals:d1._mantissa message:"CPDecimalAdd() Tapc1: mantissa"];
    461. 

  461.     [self assert:NO equals:d1._isNegative message:"CPDecimalAdd() Tapc1: sign"];
    462. 

  462.     [self assert:NO equals:d1._isNaN message:"CPDecimalAdd() Tapc1: NaN is incorrectly set"];
    463. 

  463. 

  464.     d1 = CPDecimalMakeWithString(@"1e127");
    465. 

  465.     d2 = CPDecimalMakeWithString(@"99999999999999999999999999999999999999");
    466. 

  466.     [self assert:CPDecimalAdd(d1, d1, d2, CPRoundPlain) equals:CPCalculationLossOfPrecision message:"CPDecimalAdd() Tapc2: addition loss of precision"];
    467. 

  467. 

  468.     // Overflow
    469. 

  469.     d1 = CPDecimalMakeWithString(@"1e127");
    470. 

  470.     d2 = CPDecimalMakeWithString(@"99999999999999999999999999999999999999e127");
    471. 

  471.     [self assert:CPDecimalAdd(d1, d1, d2, CPRoundPlain) equals:CPCalculationOverflow message:"CPDecimalAdd() Tao1: addition loss of precision"];
    472. 

  472. }
    473. 

  473. 

  474. - (void)testSubtract
    475. 

  475. {
    476. 

  476.     var d1 = CPDecimalMakeZero(),
    477. 

  477.         d2 = CPDecimalMakeWithString(@"0.875"),
    478. 

  478.         d3 = CPDecimalMakeWithString(@"12.67");
    479. 

  479.     [self assert:CPCalculationNoError equals:CPDecimalSubtract(d1,d2,d3,CPRoundPlain) message:"CPDecimalSubtract(): Ts1: Should succeed"];
    480. 

  480.     [self assert:-3 equals:d1._exponent message:"CPDecimalSubtract(): Ts1: exponent"];
    481. 

  481.     [self assert:[1, 1,7,9,5] equals:d1._mantissa message:"CPDecimalSubtract(): Ts1: mantissa"];
    482. 

  482.     [self assert:YES equals:d1._isNegative message:"CPDecimalSubtract(): Ts1: sign"];
    483. 

  483.     [self assert:NO equals:d1._isNaN message:"CPDecimalSubtract(): Ts1: NaN is incorrectly set"];
    484. 

  484. 

  485.     d1 = CPDecimalMakeZero();
    486. 

  486.     d2 = CPDecimalMakeWithString(@"-0.875");
    487. 

  487.     d3 = CPDecimalMakeWithString(@"-12.67");
    488. 

  488.     [self assert:CPCalculationNoError equals:CPDecimalSubtract(d1,d2,d3,CPRoundPlain) message:"CPDecimalSubtract(): Ts2: Should succeed"];
    489. 

  489.     [self assert:-3 equals:d1._exponent message:"CPDecimalSubtract(): Ts2: exponent"];
    490. 

  490.     [self assert:[1, 1,7,9,5] equals:d1._mantissa message:"CPDecimalSubtract(): Ts2: mantissa"];
    491. 

  491.     [self assert:NO equals:d1._isNegative message:"CPDecimalSubtract(): Ts2: sign"];
    492. 

  492.     [self assert:NO equals:d1._isNaN message:"CPDecimalSubtract(): Ts2: NaN is incorrectly set"];
    493. 

  493. 

  494.     d1 = CPDecimalMakeZero();
    495. 

  495.     d2 = CPDecimalMakeWithString(@"-0.875");
    496. 

  496.     d3 = CPDecimalMakeWithString(@"12.67e2");
    497. 

  497.     [self assert:CPCalculationNoError equals:CPDecimalSubtract(d1,d2,d3,CPRoundPlain) message:"CPDecimalSubtract(): Ts3: Should succeed"];
    498. 

  498.     [self assert:-3 equals:d1._exponent message:"CPDecimalSubtract(): Ts3: exponent"];
    499. 

  499.     [self assert:[1,2,6,7,8,7,5] equals:d1._mantissa message:"CPDecimalSubtract(): Ts3: mantissa"];
    500. 

  500.     [self assert:YES equals:d1._isNegative message:"CPDecimalSubtract(): Ts3: sign"];
    501. 

  501.     [self assert:NO equals:d1._isNaN message:"CPDecimalSubtract(): Ts3: NaN is incorrectly set"];
    502. 

  502. 

  503.     d1 = CPDecimalMakeZero();
    504. 

  504.     d2 = CPDecimalMakeWithString(@"0.875");
    505. 

  505.     d3 = CPDecimalMakeWithString(@"-12.67");
    506. 

  506.     [self assert:CPCalculationNoError equals:CPDecimalSubtract(d1,d2,d3,CPRoundPlain) message:"CPDecimalSubtract(): Ts4: Should succeed"];
    507. 

  507.     [self assert:-3 equals:d1._exponent message:"CPDecimalSubtract(): Ts4: exponent"];
    508. 

  508.     [self assert:[1,3,5,4,5] equals:d1._mantissa message:"CPDecimalSubtract(): Ts4: mantissa"];
    509. 

  509.     [self assert:NO equals:d1._isNegative message:"CPDecimalSubtract(): Ts4: sign"];
    510. 

  510.     [self assert:NO equals:d1._isNaN message:"CPDecimalSubtract(): Ts4: NaN is incorrectly set"];
    511. 

  511. 

  512.     // loss of precision
    513. 

  513.     d1 = CPDecimalMakeZero();
    514. 

  514.     d2 = CPDecimalMakeWithString(@"1e-128");
    515. 

  515.     d3 = CPDecimalMakeWithString(@"1");
    516. 

  516.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalSubtract(d1,d2,d3,CPRoundPlain) message:"CPDecimalSubtract(): Tsp1: Should throw loss of precision"];
    517. 

  517.     [self assert:0 equals:d1._exponent message:"CPDecimalSubtract(): Tsp1: exponent"];
    518. 

  518.     [self assert:[1] equals:d1._mantissa message:"CPDecimalSubtract(): Tsp1: mantissa"];
    519. 

  519.     [self assert:YES equals:d1._isNegative message:"CPDecimalSubtract(): Tsp1: sign"];
    520. 

  520.     [self assert:NO equals:d1._isNaN message:"CPDecimalSubtract(): Tsp1: NaN is incorrectly set"];
    521. 

  521. }
    522. 

  522. 

  523. - (void)testDivide
    524. 

  524. {
    525. 

  525.     var d1 = CPDecimalMakeZero(),
    526. 

  526.         d2 = CPDecimalMakeWithString(@"55e12"),
    527. 

  527.         d3 = CPDecimalMakeWithString(@"-5e20");
    528. 

  528.     [self assert:CPCalculationNoError equals:CPDecimalDivide(d1,d2,d3,CPRoundPlain) message:"CPDecimalDivide(): Td1: Should succeed"];
    529. 

  529.     [self assert:-8 equals:d1._exponent message:"CPDecimalDivide(): Td1: exponent"];
    530. 

  530.     [self assert:[1, 1] equals:d1._mantissa message:"CPDecimalDivide(): Td1: mantissa"];
    531. 

  531.     [self assert:YES equals:d1._isNegative message:"CPDecimalDivide(): Td1: sign"];
    532. 

  532.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Td1: NaN is incorrectly set"];
    533. 

  533. 

  534.     d1 = CPDecimalMakeZero();
    535. 

  535.     d2 = CPDecimalMakeWithString(@"-1e12");
    536. 

  536.     d3 = CPDecimalMakeWithString(@"-1e6");
    537. 

  537.     [self assert:CPCalculationNoError equals:CPDecimalDivide(d1,d2,d3,CPRoundPlain) message:"CPDecimalDivide(): Td2: Should succeed"];
    538. 

  538.     [self assert:6 equals:d1._exponent message:"CPDecimalDivide(): Td2: exponent"];
    539. 

  539.     [self assert:[1] equals:d1._mantissa message:"CPDecimalDivide(): Td2: mantissa"];
    540. 

  540.     [self assert:NO equals:d1._isNegative message:"CPDecimalDivide(): Td2: sign"];
    541. 

  541.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Td2: NaN is incorrectly set"];
    542. 

  542. 

  543.     d1 = CPDecimalMakeZero();
    544. 

  544.     d2 = CPDecimalMakeWithString(@"1");
    545. 

  545.     d3 = CPDecimalMakeWithString(@"0.00001");
    546. 

  546.     [self assert:CPCalculationNoError equals:CPDecimalDivide(d1,d2,d3,CPRoundPlain) message:"CPDecimalDivide(): Td3: Should succeed"];
    547. 

  547.     [self assert:5 equals:d1._exponent message:"CPDecimalDivide(): Td3: exponent"];
    548. 

  548.     [self assert:[1] equals:d1._mantissa message:"CPDecimalDivide(): Td3: mantissa"];
    549. 

  549.     [self assert:NO equals:d1._isNegative message:"CPDecimalDivide(): Td3: sign"];
    550. 

  550.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Td3: NaN is incorrectly set"];
    551. 

  551. 

  552.     d1 = CPDecimalMakeZero();
    553. 

  553.     d2 = CPDecimalMakeWithString(@"1");
    554. 

  554.     d3 = CPDecimalMakeWithString(@"3");
    555. 

  555.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalDivide(d1,d2,d3,CPRoundPlain) message:"CPDecimalDivide(): Tdp1: Should Loss of precision"];
    556. 

  556.     [self assert:-38 equals:d1._exponent message:"CPDecimalDivide(): Tdp1: exponent"];
    557. 

  557.     [self assert:[3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3] equals:d1._mantissa message:"CPDecimalDivide(): Tdp1: mantissa"];
    558. 

  558.     [self assert:NO equals:d1._isNegative message:"CPDecimalDivide(): Tdp1: sign"];
    559. 

  559.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Tdp1: NaN is incorrectly set"];
    560. 

  560. 

  561.     // Why doesnt Cocoa round the final digit up?
    562. 

  562.     d1 = CPDecimalMakeZero();
    563. 

  563.     d2 = CPDecimalMakeWithString(@"-0.875");
    564. 

  564.     d3 = CPDecimalMakeWithString(@"12");
    565. 

  565.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalDivide(d1,d2,d3,CPRoundUp) message:"CPDecimalDivide(): Tdp2: Should Loss of precision"];
    566. 

  566.     [self assert:-39 equals:d1._exponent message:"CPDecimalDivide(): Td2: exponent"];
    567. 

  567.     [self assert:[7,2,9, 1,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6] equals:d1._mantissa message:"CPDecimalDivide(): Td2: mantissa"];
    568. 

  568.     [self assert:YES equals:d1._isNegative message:"CPDecimalDivide(): Td2: sign"];
    569. 

  569.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Td2: NaN is incorrectly set"];
    570. 

  570. 

  571.     // div zero
    572. 

  572.     d1 = CPDecimalMakeZero();
    573. 

  573.     d2 = CPDecimalMakeWithString(@"-0.875");
    574. 

  574.     d3 = CPDecimalMakeWithString(@"0");
    575. 

  575.     [self assert:CPCalculationDivideByZero equals:CPDecimalDivide(d1,d2,d3,CPRoundUp) message:"CPDecimalDivide(): Tdp2: Should Loss of precision"];
    576. 

  576. 

  577.     d1 = CPDecimalMakeZero();
    578. 

  578.     d2 = CPDecimalMakeWithString(@"11");
    579. 

  579.     d3 = CPDecimalMakeWithString(@"11");
    580. 

  580. 

  581.     [self assert:CPCalculationNoError equals:CPDecimalDivide(d1, d2, d3, CPRoundPlain) message:"CPDecimalDivide(): Td4: Should succeed"];
    582. 

  582.     [self assert:0 equals:d1._exponent message:"CPDecimalDivide(): Td4: exponent"];
    583. 

  583.     [self assert:[1] equals:d1._mantissa message:"CPDecimalDivide(): Td4: mantissa"];
    584. 

  584.     [self assert:NO equals:d1._isNegative message:"CPDecimalDivide(): Td4: sign"];
    585. 

  585.     [self assert:NO equals:d1._isNaN message:"CPDecimalDivide(): Td4: NaN is incorrectly set"];
    586. 

  586. }
    587. 

  587. 

  588. - (void)testMultiply
    589. 

  589. {
    590. 

  590.     var d1 = CPDecimalMakeZero(),
    591. 

  591.         d2 = CPDecimalMakeWithString(@"12"),
    592. 

  592.         d3 = CPDecimalMakeWithString(@"-1441231251321235231");
    593. 

  593.     [self assert:CPCalculationNoError equals:CPDecimalMultiply(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiply(): Tm1: Should succeed"];
    594. 

  594.     [self assert:0 equals:d1._exponent message:"CPDecimalMultiply(): Tm1: exponent"];
    595. 

  595.     [self assert:[1,7,2,9,4,7,7,5,0, 1,5,8,5,4,8,2,2,7,7,2] equals:d1._mantissa message:"CPDecimalMultiply(): Tm1: mantissa"];
    596. 

  596.     [self assert:YES equals:d1._isNegative message:"CPDecimalMultiply(): Tm1: sign"];
    597. 

  597.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiply(): Tm1: NaN is incorrectly set"];
    598. 

  598. 

  599.     d1 = CPDecimalMakeZero();
    600. 

  600.     d2 = CPDecimalMakeWithString(@"23e100");
    601. 

  601.     d3 = CPDecimalMakeWithString(@"-13e-76");
    602. 

  602.     [self assert:CPCalculationNoError equals:CPDecimalMultiply(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiply(): Tm2: Should succeed"];
    603. 

  603.     [self assert:24 equals:d1._exponent message:"CPDecimalMultiply(): Tm2: exponent"];
    604. 

  604.     [self assert:[2,9,9] equals:d1._mantissa message:"CPDecimalMultiply(): Tm2: mantissa"];
    605. 

  605.     [self assert:YES equals:d1._isNegative message:"CPDecimalMultiply(): Tm2: sign"];
    606. 

  606.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiply(): Tm2: NaN is incorrectly set"];
    607. 

  607. 

  608.     d1 = CPDecimalMakeZero();
    609. 

  609.     d2 = CPDecimalMakeWithString(@"-0.8888");
    610. 

  610.     d3 = CPDecimalMakeWithString(@"8.88e2");
    611. 

  611.     [self assert:CPCalculationNoError equals:CPDecimalMultiply(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiply(): Tm3: Should succeed"];
    612. 

  612.     [self assert:-4 equals:d1._exponent message:"CPDecimalMultiply(): Tm3: exponent"];
    613. 

  613.     [self assert:[7,8,9,2,5,4,4] equals:d1._mantissa message:"CPDecimalMultiply(): Tm3: mantissa"];
    614. 

  614.     [self assert:YES equals:d1._isNegative message:"CPDecimalMultiply(): Tm3: sign"];
    615. 

  615.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiply(): Tm3: NaN is incorrectly set"];
    616. 

  616. 

  617.     d1 = CPDecimalMakeZero();
    618. 

  618.     d2 = CPDecimalMakeWithString(@"-1e111");
    619. 

  619.     d3 = CPDecimalMakeWithString(@"-1e-120");
    620. 

  620.     [self assert:CPCalculationNoError equals:CPDecimalMultiply(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiply(): Tm4: Should succeed"];
    621. 

  621.     [self assert:-9 equals:d1._exponent message:"CPDecimalMultiply(): Tm4: exponent"];
    622. 

  622.     [self assert:[1] equals:d1._mantissa message:"CPDecimalMultiply(): Tm4: mantissa"];
    623. 

  623.     [self assert:NO equals:d1._isNegative message:"CPDecimalMultiply(): Tm4: sign"];
    624. 

  624.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiply(): Tm4: NaN is incorrectly set"];
    625. 

  625. 

  626.     // loss of precision
    627. 

  627.     d1 = CPDecimalMakeZero();
    628. 

  628.     d2 = CPDecimalMakeWithString(@"212341251123892374823742638472481124");
    629. 

  629.     d3 = CPDecimalMakeWithString(@"127889465810478913");
    630. 

  630.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalMultiply(d1,d2,d3,CPRoundDown) message:"CPDecimalMultiply(): Tmp1: Should throw loss of precision"];
    631. 

  631.     [self assert:15 equals:d1._exponent message:"CPDecimalMultiply(): Tmp1: exponent"]; // 69 diff
    632. 

  632.     [self assert:[2,7, 1,5,6,2,0,9, 1,7,5,7,6,3,3,5,0,9,2,9,7,4,0,2,3,5,6,0,8,0,6,9,5,2,8,3,9, 1] equals:d1._mantissa message:"CPDecimalMultiply(): Tmp1: mantissa"];
    633. 

  633.     [self assert:NO equals:d1._isNegative message:"CPDecimalMultiply(): Tmp1: sign"];
    634. 

  634.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiply(): Tmp1: NaN is incorrectly set"];
    635. 

  635. 

  636.     // overflow
    637. 

  637.     d1 = CPDecimalMakeZero();
    638. 

  638.     d2 = CPDecimalMakeWithString(@"1e110");
    639. 

  639.     d3 = CPDecimalMakeWithString(@"1e111");
    640. 

  640.     [self assert:CPCalculationOverflow equals:CPDecimalMultiply(d1,d2,d3,CPRoundDown) message:"CPDecimalMultiply(): Tmo1: Should throw overflow"];
    641. 

  641.     [self assert:YES equals:d1._isNaN message:"CPDecimalMultiply(): Tmo1: NaN is incorrectly set"];
    642. 

  642. }
    643. 

  643. 

  644. // Power is unsigned
    645. 

  645. - (void)testPower
    646. 

  646. {
    647. 

  647.     var d1 = CPDecimalMakeZero(),
    648. 

  648.         d2 = CPDecimalMakeWithString(@"123"),
    649. 

  649.         d3 = 12;
    650. 

  650.     [self assert:CPCalculationNoError equals:CPDecimalPower(d1,d2,d3,CPRoundPlain) message:"CPDecimalPower(): Tp1: Should succeed"];
    651. 

  651.     [self assert:0 equals:d1._exponent message:"CPDecimalPower(): Tp1: exponent"];
    652. 

  652.     [self assert:[1, 1,9,9, 1, 1,6,3,8,4,8,7, 1,6,9,0,6,2,9,7,0,7,2,7,2, 1] equals:d1._mantissa message:"CPDecimalPower(): Tp1: mantissa"];
    653. 

  653.     [self assert:NO equals:d1._isNegative message:"CPDecimalPower(): Tp1: sign"];
    654. 

  654.     [self assert:NO equals:d1._isNaN message:"CPDecimalPower(): Tp1: NaN is incorrectly set"];
    655. 

  655. 

  656.     //0.00000 13893554059925661274821814636807535200 1 cocoa (39 digits)
    657. 

  657.     //0.00000 13893554059925661274821814636807535204 This , a few off
    658. 

  658.     d1 = CPDecimalMakeZero();
    659. 

  659.     d2 = CPDecimalMakeWithString(@"0.875");
    660. 

  660.     d3 = 101;
    661. 

  661.     [self assert:CPCalculationLossOfPrecision equals:CPDecimalPower(d1,d2,d3,CPRoundUp) message:"CPDecimalPower(): Tp2: Should throw Loss of precision"];
    662. 

  662.     [self assert:-43 equals:d1._exponent message:"CPDecimalPower(): Tp2: exponent"];
    663. 

  663.     [self assert:[1,3,8,9,3,5,5,4,0,5,9,9,2,5,6,6, 1,2,7,4,8,2, 1,8, 1,4,6,3,6,8,0,7,5,3,5,2,0,4] equals:d1._mantissa message:"CPDecimalPower(): Tp2: mantissa"];
    664. 

  664.     [self assert:NO equals:d1._isNegative message:"CPDecimalPower(): Tp2: sign"];
    665. 

  665.     [self assert:NO equals:d1._isNaN message:"CPDecimalPower(): Tp2: NaN is incorrectly set"];
    666. 

  666. 

  667. }
    668. 

  668. 

  669. - (void)testPower10
    670. 

  670. {
    671. 

  671.     var d1 = CPDecimalMakeZero(),
    672. 

  672.         d2 = CPDecimalMakeWithString(@"-0.875"),
    673. 

  673.         d3 = 3;
    674. 

  674.     [self assert:CPCalculationNoError equals:CPDecimalMultiplyByPowerOf10(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiplyByPowerOf10(): Tpp1: Should succeed"];
    675. 

  675.     [self assert:0 equals:d1._exponent message:"CPDecimalMultiplyByPowerOf10(): Tpp1: exponent"];
    676. 

  676.     [self assert:[8,7,5] equals:d1._mantissa message:"CPDecimalMultiplyByPowerOf10(): Tpp1: mantissa"];
    677. 

  677.     [self assert:YES equals:d1._isNegative message:"CPDecimalMultiplyByPowerOf10(): Tpp1: sign"];
    678. 

  678.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiplyByPowerOf10(): Tpp1: NaN is incorrectly set"];
    679. 

  679. 

  680.     d1 = CPDecimalMakeZero();
    681. 

  681.     d2 = CPDecimalMakeWithString(@"1e-120");
    682. 

  682.     d3 = 130;
    683. 

  683.     [self assert:CPCalculationNoError equals:CPDecimalMultiplyByPowerOf10(d1,d2,d3,CPRoundPlain) message:"CPDecimalMultiplyByPowerOf10(): Tpp2: Should succeed"];
    684. 

  684.     [self assert:10 equals:d1._exponent message:"CPDecimalMultiplyByPowerOf10(): Tpp2: exponent"];
    685. 

  685.     [self assert:[1] equals:d1._mantissa message:"CPDecimalMultiplyByPowerOf10(): Tpp2: mantissa"];
    686. 

  686.     [self assert:NO equals:d1._isNegative message:"CPDecimalMultiplyByPowerOf10(): Tpp2: sign"];
    687. 

  687.     [self assert:NO equals:d1._isNaN message:"CPDecimalMultiplyByPowerOf10(): Tpp2: NaN is incorrectly set"];
    688. 

  688. }
    689. 

  689. 

  690. - (void)testString
    691. 

  691. {
    692. 

  692.     var dcm = CPDecimalMakeWithString(@"0.00123");
    693. 

  693.     [self assert:"0.00123" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts1"];
    694. 

  694.     dcm = CPDecimalMakeWithString(@"2e3");
    695. 

  695.     [self assert:"2000" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts2"];
    696. 

  696.     dcm = CPDecimalMakeWithString(@"0.00876e-5");
    697. 

  697.     [self assert:"0.0000000876" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts3"];
    698. 

  698.     dcm = CPDecimalMakeWithString(@"98.56e10");
    699. 

  699.     [self assert:"985600000000" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts4"];
    700. 

  700.     dcm = CPDecimalMakeWithString(@"-1e-1");
    701. 

  701.     [self assert:"-0.1" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts5"];
    702. 

  702.     dcm = CPDecimalMakeWithString(@"-5e20");
    703. 

  703.     [self assert:"-500000000000000000000" equals:CPDecimalString(dcm,nil) message:"CPDecimalString() Ts6"];
    704. 

  704. }
    705. 

  705. 

  706. @end
    707.