1 // Int32Test.cs - NUnit Test Cases for the System.Int32 struct
3 // Mario Martinez (mariom925@home.om)
5 // (C) Ximian, Inc. http://www.ximian.com
10 using System.Threading;
11 using System.Globalization;
13 namespace MonoTests.System
17 public class Int32Test
19 private const Int32 MyInt32_1 = -42;
20 private const Int32 MyInt32_2 = -2147483648;
21 private const Int32 MyInt32_3 = 2147483647;
22 private const string MyString1 = "-42";
23 private const string MyString2 = "-2147483648";
24 private const string MyString3 = "2147483647";
25 private string[] Formats1 = {"c", "d", "e", "f", "g", "n", "p", "x" };
26 private string[] Formats2 = {"c5", "d5", "e5", "f5", "g5", "n5", "p5", "x5" };
27 private string[] Results1 = {null,
28 "-2147483648", "-2.147484e+009", "-2147483648.00",
29 "-2147483648", "-2,147,483,648.00", "-214,748,364,800.00 %", "80000000"};
30 private string[] Results2 = {null,
31 "2147483647", "2.14748e+009", "2147483647.00000",
32 "2.1475e+09", "2,147,483,647.00000", "214,748,364,700.00000 %", "7fffffff"};
33 private string[] ResultsNfi1 = {"("+NumberFormatInfo.InvariantInfo.CurrencySymbol+"2,147,483,648.00)",
34 "-2147483648", "-2.147484e+009", "-2147483648.00",
35 "-2147483648", "-2,147,483,648.00", "-214,748,364,800.00 %", "80000000"};
36 private string[] ResultsNfi2 = {NumberFormatInfo.InvariantInfo.CurrencySymbol+"2,147,483,647.00000",
37 "2147483647", "2.14748e+009", "2147483647.00000",
38 "2.1475e+09", "2,147,483,647.00000", "214,748,364,700.00000 %", "7fffffff"};
39 private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
40 private NumberFormatInfo NfiUser;
42 private CultureInfo old_culture;
45 public void SetUpFixture()
47 old_culture = Thread.CurrentThread.CurrentCulture;
49 // Set culture to en-US and don't let the user override.
50 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
52 // We can't initialize this until we set the culture.
54 string decimals = new String ('0', NumberFormatInfo.CurrentInfo.NumberDecimalDigits);
55 string perPattern = new string[] {"n %","n%","%n"} [NumberFormatInfo.CurrentInfo.PercentPositivePattern];
57 Results1 [0] = "("+NumberFormatInfo.CurrentInfo.CurrencySymbol+"2,147,483,648.00)";
58 Results1 [3] = "-2147483648." + decimals;
59 Results1 [5] = "-2,147,483,648." + decimals;
60 Results1 [6] = perPattern.Replace ("n","-214,748,364,800.00");
62 Results2 [0] = NumberFormatInfo.CurrentInfo.CurrencySymbol+"2,147,483,647.00000";
63 Results2 [6] = perPattern.Replace ("n","214,748,364,700.00000");
65 NfiUser = new NumberFormatInfo ();
66 NfiUser.CurrencyDecimalDigits = 3;
67 NfiUser.CurrencyDecimalSeparator = ":";
68 NfiUser.CurrencyGroupSeparator = "/";
69 NfiUser.CurrencyGroupSizes = new int[] { 2, 1, 0 };
70 NfiUser.CurrencyNegativePattern = 10; // n $-
71 NfiUser.CurrencyPositivePattern = 3; // n $
72 NfiUser.CurrencySymbol = "XYZ";
73 NfiUser.PercentDecimalDigits = 1;
74 NfiUser.PercentDecimalSeparator = ";";
75 NfiUser.PercentGroupSeparator = "~";
76 NfiUser.PercentGroupSizes = new int[] { 1 };
77 NfiUser.PercentNegativePattern = 2;
78 NfiUser.PercentPositivePattern = 2;
79 NfiUser.PercentSymbol = "%%%";
85 Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
89 public void TearDown()
91 Thread.CurrentThread.CurrentCulture = old_culture;
95 public void TestMinMax()
98 Assert.AreEqual(Int32.MinValue, MyInt32_2, "#A01");
99 Assert.AreEqual(Int32.MaxValue, MyInt32_3, "#A02");
103 public void TestCompareTo()
105 Assert.IsTrue(MyInt32_3.CompareTo(MyInt32_2) > 0, "MyInt32_3.CompareTo(MyInt32_2) > 0");
106 Assert.IsTrue(MyInt32_2.CompareTo(MyInt32_2) == 0, "MyInt32_2.CompareTo(MyInt32_2) == 0");
107 Assert.IsTrue(MyInt32_1.CompareTo((object)(Int32)(-42)) == 0, "MyInt32_1.CompareTo((Int32)(-42)) == 0");
108 Assert.IsTrue(MyInt32_2.CompareTo(MyInt32_3) < 0, "MyInt32_2.CompareTo(MyInt32_3) < 0");
110 MyInt32_2.CompareTo((object)(Int16)100);
111 Assert.Fail("Should raise a System.ArgumentException");
113 catch (Exception e) {
114 Assert.IsTrue(typeof(ArgumentException) == e.GetType(), "typeof(ArgumentException) == e.GetType()");
119 public void TestEquals()
121 Assert.IsTrue (MyInt32_1.Equals (MyInt32_1), "#B01");
122 Assert.IsTrue (MyInt32_1.Equals ((Int32)(-42)), "#B02");
123 Assert.IsTrue (MyInt32_1.Equals ((object)(SByte)(-42)) == false, "#B03");
124 Assert.IsTrue (MyInt32_1.Equals (MyInt32_2) == false, "#B04");
128 public void TestGetHashCode()
131 MyInt32_1.GetHashCode();
132 MyInt32_2.GetHashCode();
133 MyInt32_3.GetHashCode();
136 Assert.Fail("GetHashCode should not raise an exception here");
141 public void TestParse()
143 //test Parse(string s)
144 Assert.AreEqual (MyInt32_1, Int32.Parse (MyString1), "#C01");
145 Assert.AreEqual (MyInt32_2, Int32.Parse (MyString2), "#C02");
146 Assert.AreEqual (MyInt32_3, Int32.Parse (MyString3), "#C03");
148 Assert.AreEqual (1, Int32.Parse ("1"), "#C04");
149 Assert.AreEqual (1, Int32.Parse (" 1"), "#C05");
150 Assert.AreEqual (1, Int32.Parse (" 1"), "#C06");
151 Assert.AreEqual (1, Int32.Parse ("1 "), "#C07");
152 Assert.AreEqual (1, Int32.Parse ("+1"), "#C08");
153 Assert.AreEqual (-1, Int32.Parse ("-1"), "#C09");
154 Assert.AreEqual (-1, Int32.Parse (" -1"), "#C10");
155 Assert.AreEqual (-1, Int32.Parse (" -1 "), "#C11");
156 Assert.AreEqual (-1, Int32.Parse (" -1 "), "#C12");
160 Assert.Fail ("#C13: Should raise a System.ArgumentNullException");
162 catch (Exception e) {
163 Assert.IsTrue (typeof (ArgumentNullException) == e.GetType(), "#C14");
166 Int32.Parse("not-a-number");
167 Assert.Fail ("#C15: Should raise a System.FormatException");
169 catch (Exception e) {
170 Assert.IsTrue (typeof (FormatException) == e.GetType(), "#C16");
173 double OverInt = (double)Int32.MaxValue + 1;
174 Int32.Parse(OverInt.ToString());
175 Assert.Fail ("#C17: Should raise a System.OverflowException");
177 catch (Exception e) {
178 Assert.AreEqual (typeof (OverflowException), e.GetType(), "#C18");
180 //test Parse(string s, NumberStyles style)
181 Assert.AreEqual (42, Int32.Parse (" $42 ", NumberStyles.Currency), "#C19");
183 Int32.Parse("$42", NumberStyles.Integer);
184 Assert.Fail ("#C20: Should raise a System.FormatException");
186 catch (Exception e) {
187 Assert.IsTrue (typeof (FormatException) == e.GetType(), "#C21");
189 //test Parse(string s, IFormatProvider provider)
190 Assert.AreEqual (-42, Int32.Parse (" -42 ", Nfi), "#C22");
192 Int32.Parse("%42", Nfi);
193 Assert.Fail ("#C23: Should raise a System.FormatException");
195 catch (Exception e) {
196 Assert.IsTrue (typeof (FormatException) == e.GetType(), "#C24");
198 //test Parse(string s, NumberStyles style, IFormatProvider provider)
199 Assert.AreEqual (16, Int32.Parse (" 10 ", NumberStyles.HexNumber, Nfi), "#C25");
201 Int32.Parse("$42", NumberStyles.Integer, Nfi);
202 Assert.Fail ("#C26: Should raise a System.FormatException");
204 catch (Exception e) {
205 Assert.IsTrue(typeof (FormatException) == e.GetType(), "#C27");
209 Int32.Parse (" - 1 ");
210 Assert.Fail ("#C28: Should raise FormatException");
211 } catch (Exception e){
212 Assert.IsTrue (typeof (FormatException) == e.GetType (), "#C29");
217 Assert.Fail ("#C30: Should raise FormatException");
218 } catch (Exception e){
219 Assert.IsTrue (typeof (FormatException) == e.GetType (), "#C31");
221 Assert.AreEqual (-123, Int32.Parse ("ffffff85", NumberStyles.HexNumber, Nfi), "#C32");
223 Int32.Parse ("100000000", NumberStyles.HexNumber, Nfi);
224 Assert.Fail ("#C33: Should raise OverflowException");
225 } catch (Exception e){
226 Assert.IsTrue (typeof (OverflowException) == e.GetType (), "#C34");
229 Int32.Parse ("2147483648");
230 Assert.Fail ("C#35: should raise OverflowException");
231 } catch (Exception e) {
232 Assert.IsTrue (typeof (OverflowException) == e.GetType (), "C#36");
235 Int32.Parse ("2147483648", CultureInfo.InvariantCulture);
236 Assert.Fail ("C#37: should raise OverflowException");
237 } catch (Exception e) {
238 Assert.IsTrue (typeof (OverflowException) == e.GetType (), "C#38");
243 Assert.Fail ("C#39: Should raise an ArgumentNullException");
244 } catch (Exception e){
245 Assert.IsTrue (typeof (ArgumentNullException) == e.GetType (), "C#40");
249 Int32.Parse ("123", (NumberStyles) 60000);
250 Assert.Fail ("C#41 Should raise an ArgumentException");
251 } catch (Exception e){
252 Assert.IsTrue (typeof (ArgumentException) == e.GetType (), "C#42");
256 Int32.Parse ("5", NumberStyles.Any, CultureInfo.InvariantCulture);
257 Assert.Fail ("C#42");
258 } catch (FormatException) {
262 Int32.Parse ("\xFF15\xFF15", NumberStyles.Any, CultureInfo.InvariantCulture);
263 Assert.Fail ("C#43");
264 } catch (FormatException) {
267 // Pass a DateTimeFormatInfo, it is unable to format
268 // numbers, but we should not crash
270 Int32.Parse ("123", new DateTimeFormatInfo ());
272 Assert.AreEqual (734561, Int32.Parse ("734561\0"), "C#43");
273 Assert.AreEqual (734561, Int32.Parse ("734561\0\0\0 \0"), "C#44");
274 Assert.AreEqual (734561, Int32.Parse ("734561\0\0\0 "), "C#45");
275 Assert.AreEqual (734561, Int32.Parse ("734561\0\0\0"), "C#46");
277 Assert.AreEqual (0, Int32.Parse ("0+", NumberStyles.Any), "#50");
281 public void TestParseExponent ()
283 Assert.AreEqual (2, Int32.Parse ("2E0", NumberStyles.AllowExponent), "A#1");
284 Assert.AreEqual (20, Int32.Parse ("2E1", NumberStyles.AllowExponent), "A#2");
285 Assert.AreEqual (200, Int32.Parse ("2E2", NumberStyles.AllowExponent), "A#3");
286 Assert.AreEqual (2000000, Int32.Parse ("2E6", NumberStyles.AllowExponent), "A#4");
287 Assert.AreEqual (200, Int32.Parse ("2E+2", NumberStyles.AllowExponent), "A#5");
288 Assert.AreEqual (2, Int32.Parse ("2", NumberStyles.AllowExponent), "A#6");
289 Assert.AreEqual (21, Int32.Parse ("2.1E1", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#7");
290 Assert.AreEqual (520, Int32.Parse (".52E3", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#8");
291 Assert.AreEqual (32500000, Int32.Parse ("32.5E6", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#9");
292 Assert.AreEqual (890, Int32.Parse ("8.9000E2", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent), "A#10");
293 Assert.AreEqual (35, Int32.Parse ("3500E-02", NumberStyles.AllowExponent), "A#5");
298 } catch (FormatException) {
302 Int32.Parse ("2E3.0", NumberStyles.AllowExponent); // decimal notation for the exponent
304 } catch (FormatException) {
308 Int32.Parse ("2E 2", NumberStyles.AllowExponent);
310 } catch (FormatException) {
314 Int32.Parse ("2E2 ", NumberStyles.AllowExponent);
316 } catch (FormatException) {
320 Int32.Parse ("2E66", NumberStyles.AllowExponent); // final result overflow
322 } catch (OverflowException) {
326 long exponent = (long)Int32.MaxValue + 10;
327 Int32.Parse ("2E" + exponent.ToString (), NumberStyles.AllowExponent);
329 } catch (OverflowException) {
333 Int32.Parse ("2E-1", NumberStyles.AllowExponent);
335 } catch (OverflowException){
339 Int32.Parse ("2 math e1", NumberStyles.AllowExponent);
341 } catch (FormatException) {
345 Int32.Parse ("2.09E1", NumberStyles.AllowDecimalPoint | NumberStyles.AllowExponent);
347 } catch (OverflowException) {
352 public void TestTryParse()
356 Assert.AreEqual (true, Int32.TryParse (MyString1, out result));
357 Assert.AreEqual (MyInt32_1, result);
358 Assert.AreEqual (true, Int32.TryParse (MyString2, out result));
359 Assert.AreEqual (MyInt32_2, result);
360 Assert.AreEqual (true, Int32.TryParse (MyString3, out result));
361 Assert.AreEqual (MyInt32_3, result);
363 Assert.AreEqual (true, Int32.TryParse ("1", out result));
364 Assert.AreEqual (1, result);
365 Assert.AreEqual (true, Int32.TryParse (" 1", out result));
366 Assert.AreEqual (1, result);
367 Assert.AreEqual (true, Int32.TryParse (" 1", out result));
368 Assert.AreEqual (1, result);
369 Assert.AreEqual (true, Int32.TryParse ("1 ", out result));
370 Assert.AreEqual (1, result);
371 Assert.AreEqual (true, Int32.TryParse ("+1", out result));
372 Assert.AreEqual (1, result);
373 Assert.AreEqual (true, Int32.TryParse ("-1", out result));
374 Assert.AreEqual (-1, result);
375 Assert.AreEqual (true, Int32.TryParse (" -1", out result));
376 Assert.AreEqual (-1, result);
377 Assert.AreEqual (true, Int32.TryParse (" -1 ", out result));
378 Assert.AreEqual (-1, result);
379 Assert.AreEqual (true, Int32.TryParse (" -1 ", out result));
380 Assert.AreEqual (-1, result);
383 Assert.AreEqual (false, Int32.TryParse (null, out result));
384 Assert.AreEqual (0, result);
386 Assert.AreEqual (false, Int32.TryParse ("not-a-number", out result));
388 double OverInt = (double)Int32.MaxValue + 1;
389 Assert.AreEqual (false, Int32.TryParse (OverInt.ToString (), out result));
390 Assert.AreEqual (false, Int32.TryParse (OverInt.ToString (), NumberStyles.None, CultureInfo.InvariantCulture, out result));
392 Assert.AreEqual (false, Int32.TryParse ("$42", NumberStyles.Integer, null, out result));
393 Assert.AreEqual (false, Int32.TryParse ("%42", NumberStyles.Integer, Nfi, out result));
394 Assert.AreEqual (false, Int32.TryParse ("$42", NumberStyles.Integer, Nfi, out result));
395 Assert.AreEqual (false, Int32.TryParse (" - 1 ", out result));
396 Assert.AreEqual (false, Int32.TryParse (" - ", out result));
397 Assert.AreEqual (false, Int32.TryParse ("100000000", NumberStyles.HexNumber, Nfi, out result));
398 Assert.AreEqual (false, Int32.TryParse ("10000000000", out result));
399 Assert.AreEqual (false, Int32.TryParse ("-10000000000", out result));
400 Assert.AreEqual (true, Int32.TryParse ("7fffffff", NumberStyles.HexNumber, Nfi, out result));
401 Assert.AreEqual (Int32.MaxValue, result);
402 Assert.AreEqual (true, Int32.TryParse ("80000000", NumberStyles.HexNumber, Nfi, out result));
403 Assert.AreEqual (Int32.MinValue, result);
404 Assert.AreEqual (true, Int32.TryParse ("ffffffff", NumberStyles.HexNumber, Nfi, out result));
405 Assert.AreEqual (-1, result);
406 Assert.AreEqual (false, Int32.TryParse ("100000000", NumberStyles.HexNumber, Nfi, out result));
407 Assert.IsFalse (int.TryParse ("-", NumberStyles.AllowLeadingSign, Nfi, out result));
408 Assert.IsFalse (int.TryParse (Nfi.CurrencySymbol + "-", NumberStyles.AllowLeadingSign | NumberStyles.AllowCurrencySymbol, Nfi, out result));
412 public void TestToString()
415 Assert.AreEqual (MyString1, MyInt32_1.ToString (), "#D01");
416 Assert.AreEqual (MyString2, MyInt32_2.ToString (), "#D02");
417 Assert.AreEqual (MyString3, MyInt32_3.ToString (), "#D03");
419 //test ToString(string format, IFormatProvider provider);
420 for (int i=0; i < Formats1.Length; i++) {
421 Assert.AreEqual (ResultsNfi1 [i], MyInt32_2.ToString (Formats1 [i], Nfi),
422 "#D04(" + i + "," + Formats1 [i] + ")");
423 Assert.AreEqual (ResultsNfi2 [i], MyInt32_3.ToString (Formats2 [i], Nfi),
424 "#D05(" + i + "," + Formats2 [i] + ")");
427 //test ToString(string format)
428 for (int i=0; i < Formats1.Length; i++) {
429 Assert.AreEqual (Results1 [i], MyInt32_2.ToString(Formats1[i]), "#D06(" + i + ")");
430 Assert.AreEqual (Results2 [i], MyInt32_3.ToString(Formats2[i]),
436 MyInt32_1.ToString("z");
437 Assert.Fail ("#D08: Should raise a System.FormatException");
439 catch (Exception e) {
440 Assert.IsTrue (typeof (FormatException) == e.GetType(), "#D09");
445 public void TestCustomToString()
449 Assert.AreEqual ("00123", i.ToString ("00000"), "Custom format string 00000");
450 Assert.AreEqual ("123", i.ToString ("####"), "Custom format string ####");
451 Assert.AreEqual ("0123", i.ToString ("0###"), "Custom format string ####");
452 Assert.AreEqual ("0123", i.ToString ("#0###"), "Custom format string ####");
453 Assert.AreEqual ("000123", i.ToString ("0#0###"), "Custom format string ####");
457 public void TestSections ()
462 Assert.IsTrue ( hundred.ToString ("#;#") == "100", "#TS1");
463 Assert.IsTrue ( hundred.ToString ("-#;#") == "-100", "#TS2");
464 Assert.IsTrue ( neghund.ToString ("#;#") == "100", "#TS3");
465 Assert.IsTrue ( neghund.ToString ("#;-#") == "-100", "#TS3");
469 public void ToString_Defaults ()
472 // everything defaults to "G"
473 string def = i.ToString ("G");
474 Assert.AreEqual (def, i.ToString (), "ToString()");
475 Assert.AreEqual (def, i.ToString ((IFormatProvider)null), "ToString((IFormatProvider)null)");
476 Assert.AreEqual (def, i.ToString ((string)null), "ToString((string)null)");
477 Assert.AreEqual (def, i.ToString (String.Empty), "ToString(empty)");
478 Assert.AreEqual (def, i.ToString (null, null), "ToString(null,null)");
479 Assert.AreEqual (def, i.ToString (String.Empty, null), "ToString(empty,null)");
481 Assert.AreEqual ("254", def, "ToString(G)");
485 public void ParseRespectCurrentCulture ()
487 var old = Thread.CurrentThread.CurrentCulture;
488 var cur = (CultureInfo)old.Clone ();
490 NumberFormatInfo ninfo = new NumberFormatInfo ();
491 ninfo.NegativeSign = ">";
492 ninfo.PositiveSign = "%";
493 cur.NumberFormat = ninfo;
495 Thread.CurrentThread.CurrentCulture = cur;
500 Assert.IsTrue (int.TryParse (">11", out val), "#1");
501 Assert.AreEqual (-11, val, "#2");
502 Assert.IsTrue (int.TryParse ("%11", out val), "#3");
503 Assert.AreEqual (11, val, "#4");
505 Thread.CurrentThread.CurrentCulture = old;
510 public void TestUserCurrency ()
512 const int val1 = -1234567;
513 const int val2 = 1234567;
517 s = val1.ToString ("c", NfiUser);
518 Assert.AreEqual ("1234/5/67:000 XYZ-", s, "Currency value type 1 is not what we want to try to parse");
519 v = Int32.Parse ("1234/5/67:000 XYZ-", NumberStyles.Currency, NfiUser);
520 Assert.AreEqual (val1, v);
522 s = val2.ToString ("c", NfiUser);
523 Assert.AreEqual ("1234/5/67:000 XYZ", s, "Currency value type 2 is not what we want to try to parse");
524 v = Int32.Parse (s, NumberStyles.Currency, NfiUser);
525 Assert.AreEqual (val2, v);