4 // Rodrigo Kumpera <rkumpera@novell.com>
6 // Copyright (C) 2010 Novell, Inc (http://www.novell.com)
10 using System.Numerics;
11 using NUnit.Framework;
14 namespace MonoTests.System.Numerics
17 public class BigIntegerTest
19 static byte[] huge_a = new byte[] {0x1D, 0x33, 0xFB, 0xFE, 0xB1, 0x2, 0x85, 0x44, 0xCA, 0xDC, 0xFB, 0x70, 0xD, 0x39, 0xB1, 0x47, 0xB6, 0xE6, 0xA2, 0xD1, 0x19, 0x1E, 0x9F, 0xE4, 0x3C, 0x1E, 0x16, 0x56, 0x13, 0x9C, 0x4D, 0xD3, 0x5C, 0x74, 0xC9, 0xBD, 0xFA, 0x56, 0x40, 0x58, 0xAC, 0x20, 0x6B, 0x55, 0xA2, 0xD5, 0x41, 0x38, 0xA4, 0x6D, 0xF6, 0x8C, };
21 static byte[] huge_b = new byte[] {0x96, 0x5, 0xDA, 0xFE, 0x93, 0x17, 0xC1, 0x93, 0xEC, 0x2F, 0x30, 0x2D, 0x8F, 0x28, 0x13, 0x99, 0x70, 0xF4, 0x4C, 0x60, 0xA6, 0x49, 0x24, 0xF9, 0xB3, 0x4A, 0x41, 0x67, 0xDC, 0xDD, 0xB1, 0xA5, 0xA6, 0xC0, 0x3D, 0x57, 0x9A, 0xCB, 0x29, 0xE2, 0x94, 0xAC, 0x6C, 0x7D, 0xEF, 0x3E, 0xC6, 0x7A, 0xC1, 0xA8, 0xC8, 0xB0, 0x20, 0x95, 0xE6, 0x4C, 0xE1, 0xE0, 0x4B, 0x49, 0xD5, 0x5A, 0xB7, };
23 static byte[] huge_add = new byte[] {0xB3, 0x38, 0xD5, 0xFD, 0x45, 0x1A, 0x46, 0xD8, 0xB6, 0xC, 0x2C, 0x9E, 0x9C, 0x61, 0xC4, 0xE0, 0x26, 0xDB, 0xEF, 0x31, 0xC0, 0x67, 0xC3, 0xDD, 0xF0, 0x68, 0x57, 0xBD, 0xEF, 0x79, 0xFF, 0x78, 0x3, 0x35, 0x7, 0x15, 0x95, 0x22, 0x6A, 0x3A, 0x41, 0xCD, 0xD7, 0xD2, 0x91, 0x14, 0x8, 0xB3, 0x65, 0x16, 0xBF, 0x3D, 0x20, 0x95, 0xE6, 0x4C, 0xE1, 0xE0, 0x4B, 0x49, 0xD5, 0x5A, 0xB7, };
25 static byte[] a_m_b = new byte[] { 0x87, 0x2D, 0x21, 0x0, 0x1E, 0xEB, 0xC3, 0xB0, 0xDD, 0xAC, 0xCB, 0x43, 0x7E, 0x10, 0x9E, 0xAE, 0x45, 0xF2, 0x55, 0x71, 0x73, 0xD4, 0x7A, 0xEB, 0x88, 0xD3, 0xD4, 0xEE, 0x36, 0xBE, 0x9B, 0x2D, 0xB6, 0xB3, 0x8B, 0x66, 0x60, 0x8B, 0x16, 0x76, 0x17, 0x74, 0xFE, 0xD7, 0xB2, 0x96, 0x7B, 0xBD, 0xE2, 0xC4, 0x2D, 0xDC, 0xDE, 0x6A, 0x19, 0xB3, 0x1E, 0x1F, 0xB4, 0xB6, 0x2A, 0xA5, 0x48, };
\r
26 static byte[] b_m_a = new byte[] { 0x79, 0xD2, 0xDE, 0xFF, 0xE1, 0x14, 0x3C, 0x4F, 0x22, 0x53, 0x34, 0xBC, 0x81, 0xEF, 0x61, 0x51, 0xBA, 0xD, 0xAA, 0x8E, 0x8C, 0x2B, 0x85, 0x14, 0x77, 0x2C, 0x2B, 0x11, 0xC9, 0x41, 0x64, 0xD2, 0x49, 0x4C, 0x74, 0x99, 0x9F, 0x74, 0xE9, 0x89, 0xE8, 0x8B, 0x1, 0x28, 0x4D, 0x69, 0x84, 0x42, 0x1D, 0x3B, 0xD2, 0x23, 0x21, 0x95, 0xE6, 0x4C, 0xE1, 0xE0, 0x4B, 0x49, 0xD5, 0x5A, 0xB7, };
\r
28 static byte[] huge_mul = new byte[] { 0xFE, 0x83, 0xE1, 0x9B, 0x8D, 0x61, 0x40, 0xD1, 0x60, 0x19, 0xBD, 0x38, 0xF0, 0xFF, 0x90, 0xAE, 0xDD, 0xAE, 0x73, 0x2C, 0x20, 0x23, 0xCF, 0x6, 0x7A, 0xB4, 0x1C, 0xE7, 0xD9, 0x64, 0x96, 0x2C, 0x87, 0x7E, 0x1D, 0xB3, 0x8F, 0xD4, 0x33, 0xBA, 0xF4, 0x22, 0xB4, 0xDB, 0xC0, 0x5B, 0xA5, 0x64, 0xA0, 0xBC, 0xCA, 0x3E, 0x94, 0x95, 0xDA, 0x49, 0xE2, 0xA8, 0x33, 0xA2, 0x6A, 0x33, 0xB1, 0xF2, 0xEA, 0x99, 0x32, 0xD0, 0xB2, 0xAE, 0x55, 0x75, 0xBD, 0x19, 0xFC, 0x9A, 0xEC, 0x54, 0x87, 0x2A, 0x6, 0xCC, 0x78, 0xDA, 0x88, 0xBB, 0xAB, 0xA5, 0x47, 0xEF, 0xC7, 0x2B, 0xC7, 0x5B, 0x32, 0x31, 0xCD, 0xD9, 0x53, 0x96, 0x1A, 0x9D, 0x9A, 0x57, 0x40, 0x51, 0xB6, 0x5D, 0xC, 0x17, 0xD1, 0x86, 0xE9, 0xA4, 0x20, };
30 static byte[][] add_a = new byte[][] {
36 static byte[][] add_b = new byte[][] {
42 static byte[][] add_c = new byte[][] {
50 long[] values = new long [] { -1000000000L, -1000, -1, 0, 1, 1000, 100000000L };
51 for (int i = 0; i < values.Length; ++i) {
52 for (int j = 0; j < values.Length; ++j) {
53 var a = new BigInteger (values [i]);
54 var b = new BigInteger (values [j]);
56 Assert.AreEqual (values [i] * values [j], (long)c, "#_" + i + "_" + j);
62 public void TestHugeMul () {
63 var a = new BigInteger (huge_a);
64 var b = new BigInteger (huge_b);
65 Assert.AreEqual (huge_mul, (a * b).ToByteArray (), "#1");
69 public void TestAdd () {
70 for (int i = 0; i < add_a.Length; ++i) {
71 var a = new BigInteger (add_a [i]);
72 var b = new BigInteger (add_b [i]);
73 var c = new BigInteger (add_c [i]);
75 Assert.AreEqual (c, a + b, "#" + i + "a");
76 Assert.AreEqual (c, b + a, "#" + i + "b");
77 Assert.AreEqual (c, BigInteger.Add (a, b), "#" + i + "c");
78 Assert.AreEqual (add_c [i], (a + b).ToByteArray (), "#" + i + "d");
83 public void TestAdd2 () {
84 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
85 for (int i = 0; i < values.Length; ++i) {
86 for (int j = 0; j < values.Length; ++j) {
87 var a = new BigInteger (values [i]);
88 var b = new BigInteger (values [j]);
90 Assert.AreEqual (values [i] + values [j], (long)c, "#_" + i + "_" + j);
96 public void TestHugeSub () {
97 var a = new BigInteger (huge_a);
98 var b = new BigInteger (huge_b);
99 Assert.AreEqual (a_m_b, (a - b).ToByteArray (), "#1");
100 Assert.AreEqual (b_m_a, (b - a).ToByteArray (), "#2");
104 public void TestSub () {
105 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
106 for (int i = 0; i < values.Length; ++i) {
107 for (int j = 0; j < values.Length; ++j) {
108 var a = new BigInteger (values [i]);
109 var b = new BigInteger (values [j]);
111 var d = BigInteger.Subtract (a, b);
113 Assert.AreEqual (values [i] - values [j], (long)c, "#_" + i + "_" + j);
114 Assert.AreEqual (values [i] - values [j], (long)d, "#_" + i + "_" + j);
120 public void TestMin () {
121 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
122 for (int i = 0; i < values.Length; ++i) {
123 for (int j = 0; j < values.Length; ++j) {
124 var a = new BigInteger (values [i]);
125 var b = new BigInteger (values [j]);
126 var c = BigInteger.Min (a, b);
128 Assert.AreEqual (Math.Min (values [i], values [j]), (long)c, "#_" + i + "_" + j);
134 public void TestMax () {
135 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
136 for (int i = 0; i < values.Length; ++i) {
137 for (int j = 0; j < values.Length; ++j) {
138 var a = new BigInteger (values [i]);
139 var b = new BigInteger (values [j]);
140 var c = BigInteger.Max (a, b);
142 Assert.AreEqual (Math.Max (values [i], values [j]), (long)c, "#_" + i + "_" + j);
148 public void TestAbs () {
149 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
150 for (int i = 0; i < values.Length; ++i) {
151 var a = new BigInteger (values [i]);
152 var c = BigInteger.Abs (a);
154 Assert.AreEqual (Math.Abs (values [i]), (long)c, "#_" + i);
159 public void TestNegate () {
160 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
161 for (int i = 0; i < values.Length; ++i) {
162 var a = new BigInteger (values [i]);
164 var d = BigInteger.Negate (a);
166 Assert.AreEqual (-values [i], (long)c, "#_" + i);
167 Assert.AreEqual (-values [i], (long)d, "#_" + i);
172 public void TestInc () {
173 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
174 for (int i = 0; i < values.Length; ++i) {
175 var a = new BigInteger (values [i]);
178 Assert.AreEqual (++values [i], (long)b, "#_" + i);
183 public void TestDec () {
184 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
185 for (int i = 0; i < values.Length; ++i) {
186 var a = new BigInteger (values [i]);
189 Assert.AreEqual (--values [i], (long)b, "#_" + i);
194 public void TestBitwiseOps () {
195 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L, 0xFFFF00000000L };
196 for (int i = 0; i < values.Length; ++i) {
197 for (int j = 0; j < values.Length; ++j) {
198 var a = new BigInteger (values [i]);
199 var b = new BigInteger (values [j]);
202 Assert.AreEqual (values [i] | values [j], (long)(a | b) , "#b_" + i + "_" + j);
203 Assert.AreEqual (values [i] & values [j], (long)(a & b) , "#a_" + i + "_" + j);
204 Assert.AreEqual (values [i] ^ values [j], (long)(a ^ b) , "#c_" + i + "_" + j);
205 Assert.AreEqual (~values [i], (long)~a , "#d_" + i + "_" + j);
211 public void TestLeftShift () {
212 Assert.AreEqual (new byte[] {0x00, 0x28},
213 (new BigInteger(0x0A) << 10).ToByteArray (), "#1");
214 Assert.AreEqual (new byte[] {0x00, 0xD8},
215 (new BigInteger(-10) << 10).ToByteArray (), "#2");
216 Assert.AreEqual (new byte[] {0x00, 0x00, 0xFF},
217 (new BigInteger(-1) << 16).ToByteArray (), "#3");
218 Assert.AreEqual (new byte[] {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A},
219 (new BigInteger(0x0A) << 80).ToByteArray (), "#4");
220 Assert.AreEqual (new byte[] {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6},
221 (new BigInteger(-10) << 80).ToByteArray (), "#5");
222 Assert.AreEqual (new byte[] {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF},
223 (new BigInteger(-1) << 80).ToByteArray (), "#6");
224 Assert.AreEqual (new byte[] {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0xD9},
225 (new BigInteger(-1234) << 75).ToByteArray (), "#7");
226 Assert.AreEqual (new byte[] {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA0, 0x91, 0x00},
227 (new BigInteger(0x1234) << 75).ToByteArray (), "#8");
229 Assert.AreEqual (new byte[] {0xFF, 0x00}, (new BigInteger(0xFF00) << -8).ToByteArray (), "#9");
233 public void TestRightShift () {
234 Assert.AreEqual (new byte[] {0x16, 0xB0, 0x4C, 0x02},
235 (new BigInteger(1234567899L) >> 5).ToByteArray (), "#1");
237 Assert.AreEqual (new byte[] {0x2C, 0x93, 0x00},
238 (new BigInteger(1234567899L) >> 15).ToByteArray (), "#2");
240 Assert.AreEqual (new byte[] {0xFF, 0xFF, 0x7F},
241 (new BigInteger(long.MaxValue - 100) >> 40).ToByteArray (), "#3");
243 Assert.AreEqual (new byte[] {0xE9, 0x4F, 0xB3, 0xFD},
244 (new BigInteger(-1234567899L) >> 5).ToByteArray (), "#4");
246 Assert.AreEqual (new byte[] {0xD3, 0x6C, 0xFF},
247 (new BigInteger(-1234567899L) >> 15).ToByteArray (), "#5");
249 Assert.AreEqual (new byte[] {0x00, 0x00, 0x80},
250 (new BigInteger(long.MinValue + 100) >> 40).ToByteArray (), "#6");
252 Assert.AreEqual (new byte[] { 0xFF },
253 (new BigInteger(-1234567899L) >> 90).ToByteArray (), "#7");
255 Assert.AreEqual (new byte[] {0x00},
256 (new BigInteger(999999) >> 90).ToByteArray (), "#8");
258 Assert.AreEqual (new byte[] {0x00, 0x00, 0xFF, 0x00}, (new BigInteger(0xFF00) >> -8).ToByteArray (), "#9");
262 public void CompareOps () {
263 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
264 for (int i = 0; i < values.Length; ++i) {
265 for (int j = 0; j < values.Length; ++j) {
266 var a = new BigInteger (values [i]);
267 var b = new BigInteger (values [j]);
269 Assert.AreEqual (values [i].CompareTo (values [j]), a.CompareTo (b), "#a_" + i + "_" + j);
270 Assert.AreEqual (values [i].CompareTo (values [j]), BigInteger.Compare (a, b), "#b_" + i + "_" + j);
272 Assert.AreEqual (values [i] < values [j], a < b, "#c_" + i + "_" + j);
273 Assert.AreEqual (values [i] <= values [j], a <= b, "#d_" + i + "_" + j);
274 Assert.AreEqual (values [i] == values [j], a == b, "#e_" + i + "_" + j);
275 Assert.AreEqual (values [i] != values [j], a != b, "#f_" + i + "_" + j);
276 Assert.AreEqual (values [i] >= values [j], a >= b, "#g_" + i + "_" + j);
277 Assert.AreEqual (values [i] > values [j], a > b, "#h_" + i + "_" + j);
283 public void CompareOps2 () {
284 BigInteger a = new BigInteger (100000000000L);
285 BigInteger b = new BigInteger (28282828282UL);
287 Assert.IsTrue (a >= b, "#1");
288 Assert.IsTrue (a >= b, "#2");
289 Assert.IsFalse (a < b, "#3");
290 Assert.IsFalse (a <= b, "#4");
291 Assert.AreEqual (1, a.CompareTo (b), "#5");
295 public void CompareULong () {
296 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L, 0xAA00000000L };
297 ulong[] uvalues = new ulong [] {0, 1, 1000, 100000000000L, 999999, 28282828282, 0xAA00000000, ulong.MaxValue };
298 for (int i = 0; i < values.Length; ++i) {
299 for (int j = 0; j < uvalues.Length; ++j) {
300 var a = new BigInteger (values [i]);
302 var c = new BigInteger (b);
304 Assert.AreEqual (a.CompareTo (c), a.CompareTo (b), "#a_" + i + "_" + j);
306 Assert.AreEqual (a > c, a > b, "#b_" + i + "_" + j);
307 Assert.AreEqual (a < c, a < b, "#c_" + i + "_" + j);
308 Assert.AreEqual (a <= c, a <= b, "#d_" + i + "_" + j);
309 Assert.AreEqual (a == c, a == b, "#e_" + i + "_" + j);
310 Assert.AreEqual (a != c, a != b, "#f_" + i + "_" + j);
311 Assert.AreEqual (a >= c, a >= b, "#g_" + i + "_" + j);
313 Assert.AreEqual (c > a, b > a, "#ib_" + i + "_" + j);
314 Assert.AreEqual (c < a, b < a, "#ic_" + i + "_" + j);
315 Assert.AreEqual (c <= a, b <= a, "#id_" + i + "_" + j);
316 Assert.AreEqual (c == a, b == a, "#ie_" + i + "_" + j);
317 Assert.AreEqual (c != a, b != a, "#if_" + i + "_" + j);
318 Assert.AreEqual (c >= a, b >= a, "#ig_" + i + "_" + j);
324 public void CompareLong () {
325 long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 9999999, 100000000000L, 0xAA00000000, long.MaxValue, long.MinValue };
327 for (int i = 0; i < values.Length; ++i) {
328 for (int j = 0; j < values.Length; ++j) {
329 var a = new BigInteger (values [i]);
331 var c = new BigInteger (b);
333 Assert.AreEqual (a.CompareTo (c), a.CompareTo (b), "#a_" + i + "_" + j);
335 Assert.AreEqual (a > c, a > b, "#b_" + i + "_" + j);
336 Assert.AreEqual (a < c, a < b, "#c_" + i + "_" + j);
337 Assert.AreEqual (a <= c, a <= b, "#d_" + i + "_" + j);
338 Assert.AreEqual (a == c, a == b, "#e_" + i + "_" + j);
339 Assert.AreEqual (a != c, a != b, "#f_" + i + "_" + j);
340 Assert.AreEqual (a >= c, a >= b, "#g_" + i + "_" + j);
342 Assert.AreEqual (c > a, b > a, "#ib_" + i + "_" + j);
343 Assert.AreEqual (c < a, b < a, "#ic_" + i + "_" + j);
344 Assert.AreEqual (c <= a, b <= a, "#id_" + i + "_" + j);
345 Assert.AreEqual (c == a, b == a, "#ie_" + i + "_" + j);
346 Assert.AreEqual (c != a, b != a, "#if_" + i + "_" + j);
347 Assert.AreEqual (c >= a, b >= a, "#ig_" + i + "_" + j);
353 public void TestEquals () {
354 var a = new BigInteger (10);
355 var b = new BigInteger (10);
356 var c = new BigInteger (-10);
358 Assert.AreEqual (a, b, "#1");
359 Assert.AreNotEqual (a, c, "#2");
360 Assert.AreNotEqual (a, 10, "#3");
364 public void ByteArrayCtor ()
367 new BigInteger (null);
369 } catch (ArgumentNullException) {}
371 Assert.AreEqual (0, (int)new BigInteger (new byte [0]), "#2");
375 public void IntCtorRoundTrip ()
377 int[] values = new int [] {
378 int.MinValue, -0x2F33BB, -0x1F33, -0x33, 0, 0x33,
379 0x80, 0x8190, 0xFF0011, 0x1234, 0x11BB99, 0x44BB22CC,
381 foreach (var val in values) {
382 var a = new BigInteger (val);
383 var b = new BigInteger (a.ToByteArray ());
385 Assert.AreEqual (val, (int)a, "#a_" + val);
386 Assert.AreEqual (val, (int)b, "#b_" + val);
391 public void LongCtorRoundTrip ()
393 long[] values = new long [] {
394 0, long.MinValue, long.MaxValue, -1, 1L + int.MaxValue, -1L + int.MinValue, 0x1234, 0xFFFFFFFFL, 0x1FFFFFFFFL, -0xFFFFFFFFL, -0x1FFFFFFFFL,
395 0x100000000L, -0x100000000L, 0x100000001L, -0x100000001L };
396 foreach (var val in values) {
397 var a = new BigInteger (val);
398 var b = new BigInteger (a.ToByteArray ());
400 Assert.AreEqual (val, (long)a, "#a_" + val);
401 Assert.AreEqual (val, (long)b, "#b_" + val);
406 public void ByteArrayCtorRoundTrip ()
408 var arr = new byte [] { 1,2,3,4,5,6,7,8,9 };
409 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#1");
411 arr = new byte [] { 1,2,3,4,5,6,7,8,0xFF, 0x0};
412 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#2");
414 arr = new byte [] { 1,2,3,4,5,6,7,8,9, 0xF0 };
415 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#3");
417 arr = new byte [] { 1};
418 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#4");
420 arr = new byte [] { 1,2 };
421 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#5");
423 arr = new byte [] { 1,2,3 };
424 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#6");
426 arr = new byte [] { 1,2,3,4 };
427 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#7");
429 arr = new byte [] { 1,2,3,4,5 };
430 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#8");
432 arr = new byte [] { 1,2,3,4,5,6 };
433 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#9");
435 arr = new byte [] { 1,2,3,4,5,6,7 };
436 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#10");
438 arr = new byte [] { 1,2,3,4,5 };
439 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#11");
441 arr = new byte [] { 0 };
442 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#12");
444 arr = new byte [] { 0xFF, 00 };
445 Assert.AreEqual (arr, new BigInteger (arr).ToByteArray (), "#13");
447 arr = new byte [] { 1, 0, 0, 0, 0, 0, };
448 Assert.AreEqual (new byte [1] {1}, new BigInteger (arr).ToByteArray (), "#14");
452 public void TestIntCtorProperties ()
454 BigInteger a = new BigInteger (10);
455 Assert.IsTrue (a.IsEven, "#1");
456 Assert.IsFalse (a.IsOne, "#2");
457 Assert.IsFalse (a.IsPowerOfTwo, "#3");
458 Assert.IsFalse (a.IsZero, "#4");
459 Assert.AreEqual (1, a.Sign, "#5");
461 Assert.IsFalse (new BigInteger (11).IsEven, "#6");
462 Assert.IsTrue (new BigInteger (1).IsOne, "#7");
463 Assert.IsTrue (new BigInteger (32).IsPowerOfTwo, "#8");
464 Assert.IsTrue (new BigInteger (0).IsZero, "#9");
465 Assert.AreEqual (0, new BigInteger (0).Sign, "#10");
466 Assert.AreEqual (-1, new BigInteger (-99999).Sign, "#11");
468 Assert.IsFalse (new BigInteger (0).IsPowerOfTwo, "#12");
469 Assert.IsFalse (new BigInteger (-16).IsPowerOfTwo, "#13");
470 Assert.IsTrue (new BigInteger (1).IsPowerOfTwo, "#14");
474 public void TestIntCtorToString ()
476 Assert.AreEqual ("5555", new BigInteger (5555).ToString (), "#1");
477 Assert.AreEqual ("-99999", new BigInteger (-99999).ToString (), "#2");
481 public void TestToIntOperator ()
484 int v = (int)new BigInteger (huge_a);
486 } catch (OverflowException) {}
489 int v = (int)new BigInteger (1L + int.MaxValue);
491 } catch (OverflowException) {}
494 int v = (int)new BigInteger (-1L + int.MinValue);
496 } catch (OverflowException) {}
498 Assert.AreEqual (int.MaxValue, (int)new BigInteger (int.MaxValue), "#4");
499 Assert.AreEqual (int.MinValue, (int)new BigInteger (int.MinValue), "#5");
504 public void TestToLongOperator ()
507 long v = (long)new BigInteger (huge_a);
509 } catch (OverflowException) {}
513 long v = (long)new BigInteger (new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00 });
515 } catch (OverflowException) {}
517 //TODO long.MinValue - 1
519 long v = (long)new BigInteger (new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF });
521 } catch (OverflowException) {}
523 Assert.AreEqual (long.MaxValue, (long)new BigInteger (long.MaxValue), "#4");
524 Assert.AreEqual (long.MinValue, (long)new BigInteger (long.MinValue), "#5");
528 public void TestIntCtorToByteArray ()
530 Assert.AreEqual (new byte[] { 0xFF }, new BigInteger (-1).ToByteArray (), "#1");
531 Assert.AreEqual (new byte[] { 0xD4, 0xFE }, new BigInteger (-300).ToByteArray (), "#2");
532 Assert.AreEqual (new byte[] { 0x80, 0x00 }, new BigInteger (128).ToByteArray (), "#3");
533 Assert.AreEqual (new byte[] { 0x00, 0x60 }, new BigInteger (0x6000).ToByteArray (), "#4");
534 Assert.AreEqual (new byte[] { 0x00, 0x80, 0x00 }, new BigInteger (0x8000).ToByteArray (), "#5");
535 Assert.AreEqual (new byte[] { 0xDD, 0xBC, 0x00, 0x7A }, new BigInteger (0x7A00BCDD).ToByteArray (), "#6");
536 Assert.AreEqual (new byte[] { 0xFF, 0xFF, 0xFF, 0x7F }, new BigInteger (int.MaxValue).ToByteArray (), "#7");
537 Assert.AreEqual (new byte[] { 0x00, 0x00, 0x00, 0x80 }, new BigInteger (int.MinValue).ToByteArray (), "#8");
538 Assert.AreEqual (new byte[] { 0x01, 0x00, 0x00, 0x80 }, new BigInteger (int.MinValue + 1).ToByteArray (), "#9");
539 Assert.AreEqual (new byte[] { 0x7F }, new BigInteger (0x7F).ToByteArray (), "#10");
540 Assert.AreEqual (new byte[] { 0x45, 0xCC, 0xD0 }, new BigInteger (-0x2F33BB).ToByteArray (), "#11");
541 Assert.AreEqual (new byte[] { 0 }, new BigInteger (0).ToByteArray (), "#12");
545 public void TestLongCtorToByteArray ()
547 Assert.AreEqual (new byte[] { 0x01 }, new BigInteger (0x01L).ToByteArray (), "#1");
548 Assert.AreEqual (new byte[] { 0x02, 0x01 }, new BigInteger (0x0102L).ToByteArray (), "#2");
549 Assert.AreEqual (new byte[] { 0x03, 0x02, 0x01 }, new BigInteger (0x010203L).ToByteArray (), "#3");
550 Assert.AreEqual (new byte[] { 0x04, 0x03, 0x2, 0x01 }, new BigInteger (0x01020304L).ToByteArray (), "#4");
551 Assert.AreEqual (new byte[] { 0x05, 0x04, 0x03, 0x2, 0x01 }, new BigInteger (0x0102030405L).ToByteArray (), "#5");
552 Assert.AreEqual (new byte[] { 0x06, 0x05, 0x04, 0x03, 0x2, 0x01 }, new BigInteger (0x010203040506L).ToByteArray (), "#6");
553 Assert.AreEqual (new byte[] { 0x07, 0x06, 0x05, 0x04, 0x03, 0x2, 0x01 }, new BigInteger (0x01020304050607L).ToByteArray (), "#7");
554 Assert.AreEqual (new byte[] { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x2, 0x01 }, new BigInteger (0x0102030405060708L).ToByteArray (), "#8");
556 Assert.AreEqual (new byte[] { 0xFF }, new BigInteger (-0x01L).ToByteArray (), "#1m");
557 Assert.AreEqual (new byte[] { 0xFE, 0xFE}, new BigInteger (-0x0102L).ToByteArray (), "#2m");
558 Assert.AreEqual (new byte[] { 0xFD, 0xFD, 0xFE }, new BigInteger (-0x010203L).ToByteArray (), "#3m");
559 Assert.AreEqual (new byte[] { 0xFC, 0xFC, 0xFD, 0xFE}, new BigInteger (-0x01020304L).ToByteArray (), "#4m");
560 Assert.AreEqual (new byte[] { 0xFB, 0xFB, 0xFC, 0xFD, 0xFE }, new BigInteger (-0x0102030405L).ToByteArray (), "#5m");
561 Assert.AreEqual (new byte[] { 0xFA, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE }, new BigInteger (-0x010203040506L).ToByteArray (), "#6m");
562 Assert.AreEqual (new byte[] { 0xF9, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE }, new BigInteger (-0x01020304050607L).ToByteArray (), "#7m");
563 Assert.AreEqual (new byte[] { 0xF8, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE }, new BigInteger (-0x0102030405060708L).ToByteArray (), "#8m");
566 Assert.AreEqual (new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F }, new BigInteger (long.MaxValue).ToByteArray (), "#9");
567 Assert.AreEqual (new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 }, new BigInteger (long.MinValue).ToByteArray (), "#10");
569 Assert.AreEqual (new byte[] { 0xFF, 0xFF, 0xFF, 0x7F, 0xFF }, new BigInteger (-2147483649L).ToByteArray (), "11");
573 public void IComparable () {
574 var a = new BigInteger (99);
575 Assert.AreEqual (-1, a.CompareTo (100), "#1");
576 Assert.AreEqual (1, a.CompareTo (null), "#2");
580 public void ShortOperators () {
581 Assert.AreEqual (22, (int)new BigInteger ((short)22), "#1");
582 Assert.AreEqual (-22, (int)new BigInteger ((short)-22), "#2");
585 short x = (short)new BigInteger (10000000);
587 } catch (OverflowException) {}
590 short x = (short)new BigInteger (-10000000);
592 } catch (OverflowException) {}