// DecimalTest.cs - NUnit Test Cases for the System.Decimal struct // // Authors: // Martin Weindel (martin.weindel@t-online.de) // Sebastien Pouliot // // (C) Martin Weindel, 2001 // Copyright (C) 2004 Novell (http://www.novell.com) // using NUnit.Framework; using System; using System.Globalization; using System.Runtime.CompilerServices; using System.Threading; namespace MonoTests.System { internal struct ParseTest { public ParseTest (String str, bool exceptionFlag) { this.str = str; this.exceptionFlag = exceptionFlag; this.style = NumberStyles.Number; this.d = 0; } public ParseTest (String str, Decimal d) { this.str = str; this.exceptionFlag = false; this.style = NumberStyles.Number; this.d = d; } public ParseTest (String str, Decimal d, NumberStyles style) { this.str = str; this.exceptionFlag = false; this.style = style; this.d = d; } public String str; public Decimal d; public NumberStyles style; public bool exceptionFlag; } internal struct ToStringTest { public ToStringTest (String format, Decimal d, String str) { this.format = format; this.d = d; this.str = str; } public String format; public Decimal d; public String str; } [TestFixture] public class DecimalTest : Assertion { private const int negativeBitValue = unchecked ((int) 0x80000000); private const int negativeScale4Value = unchecked ((int) 0x80040000); private int [] parts0 = { 0, 0, 0, 0 }; //Positive Zero. private int [] parts1 = { 1, 0, 0, 0 }; private int [] parts2 = { 0, 1, 0, 0 }; private int [] parts3 = { 0, 0, 1, 0 }; private int [] parts4 = { 0, 0, 0, negativeBitValue }; // Negative zero. private int [] parts5 = { 1, 1, 1, 0 }; private int [] partsMaxValue = { -1, -1, -1, 0 }; private int [] partsMinValue = { -1, -1, -1, negativeBitValue }; private int [] parts6 = { 1234, 5678, 8888, negativeScale4Value }; private NumberFormatInfo NfiUser; private CultureInfo old_culture; [TestFixtureSetUp] public void FixtureSetUp () { old_culture = Thread.CurrentThread.CurrentCulture; // Set culture to en-US and don't let the user override. Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false); NfiUser = new NumberFormatInfo (); NfiUser.CurrencyDecimalDigits = 3; NfiUser.CurrencyDecimalSeparator = ","; NfiUser.CurrencyGroupSeparator = "_"; NfiUser.CurrencyGroupSizes = new int [] { 2, 1, 0 }; NfiUser.CurrencyNegativePattern = 10; NfiUser.CurrencyPositivePattern = 3; NfiUser.CurrencySymbol = "XYZ"; NfiUser.NumberDecimalSeparator = "##"; NfiUser.NumberDecimalDigits = 4; NfiUser.NumberGroupSeparator = "__"; NfiUser.NumberGroupSizes = new int [] { 2, 1 }; NfiUser.PercentDecimalDigits = 1; NfiUser.PercentDecimalSeparator = ";"; NfiUser.PercentGroupSeparator = "~"; NfiUser.PercentGroupSizes = new int [] { 1 }; NfiUser.PercentNegativePattern = 2; NfiUser.PercentPositivePattern = 2; NfiUser.PercentSymbol = "%%%"; } [TestFixtureTearDown] public void FixtureTearDown () { Thread.CurrentThread.CurrentCulture = old_culture; } [Test] public void TestToString () { ToStringTest [] tab = { new ToStringTest ("F", 12.345678m, "12.35"), new ToStringTest ("F3", 12.345678m, "12.346"), new ToStringTest ("F0", 12.345678m, "12"), new ToStringTest ("F7", 12.345678m, "12.3456780"), new ToStringTest ("g", 12.345678m, "12.345678"), new ToStringTest ("E", 12.345678m, "1.234568E+001"), new ToStringTest ("E3", 12.345678m, "1.235E+001"), new ToStringTest ("E0", 12.345678m, "1E+001"), new ToStringTest ("e8", 12.345678m, "1.23456780e+001"), new ToStringTest ("F", 0.0012m, "0.00"), new ToStringTest ("F3", 0.0012m, "0.001"), new ToStringTest ("F0", 0.0012m, "0"), new ToStringTest ("F6", 0.0012m, "0.001200"), new ToStringTest ("e", 0.0012m, "1.200000e-003"), new ToStringTest ("E3", 0.0012m, "1.200E-003"), new ToStringTest ("E0", 0.0012m, "1E-003"), new ToStringTest ("E6", 0.0012m, "1.200000E-003"), new ToStringTest ("F4", -0.001234m, "-0.0012"), new ToStringTest ("E3", -0.001234m, "-1.234E-003"), new ToStringTest ("g", -0.000012m, "-0.000012"), new ToStringTest ("g0", -0.000012m, "-1.2e-05"), new ToStringTest ("g2", -0.000012m, "-1.2e-05"), new ToStringTest ("g20", -0.000012m, "-1.2e-05"), new ToStringTest ("g", -0.00012m, "-0.00012"), new ToStringTest ("g4", -0.00012m, "-0.00012"), new ToStringTest ("g7", -0.00012m, "-0.00012"), new ToStringTest ("g", -0.0001234m, "-0.0001234"), new ToStringTest ("g", -0.0012m, "-0.0012"), new ToStringTest ("g", -0.001234m, "-0.001234"), new ToStringTest ("g", -0.012m, "-0.012"), new ToStringTest ("g4", -0.012m, "-0.012"), new ToStringTest ("g", -0.12m, "-0.12"), new ToStringTest ("g", -1.2m, "-1.2"), new ToStringTest ("g4", -120m, "-120"), new ToStringTest ("g", -12.000m, "-12.000"), new ToStringTest ("g0", -12.000m, "-12"), new ToStringTest ("g6", -12.000m, "-12"), new ToStringTest ("g", -12m, "-12"), new ToStringTest ("g", -120m, "-120"), new ToStringTest ("g", -1200m, "-1200"), new ToStringTest ("g4", -1200m, "-1200"), new ToStringTest ("g", -1234m, "-1234"), new ToStringTest ("g", -12000m, "-12000"), new ToStringTest ("g4", -12000m, "-1.2e+04"), new ToStringTest ("g5", -12000m, "-12000"), new ToStringTest ("g", -12345m, "-12345"), new ToStringTest ("g", -120000m, "-120000"), new ToStringTest ("g4", -120000m, "-1.2e+05"), new ToStringTest ("g5", -120000m, "-1.2e+05"), new ToStringTest ("g6", -120000m, "-120000"), new ToStringTest ("g", -123456.1m, "-123456.1"), new ToStringTest ("g5", -123456.1m, "-1.2346e+05"), new ToStringTest ("g6", -123456.1m, "-123456"), new ToStringTest ("g", -1200000m, "-1200000"), new ToStringTest ("g", -123456.1m, "-123456.1"), new ToStringTest ("g", -123456.1m, "-123456.1"), new ToStringTest ("g", -1234567.1m, "-1234567.1"), new ToStringTest ("g", -12000000m, "-12000000"), new ToStringTest ("g", -12345678.1m, "-12345678.1"), new ToStringTest ("g", -12000000000000000000m, "-12000000000000000000"), new ToStringTest ("F", -123, "-123.00"), new ToStringTest ("F3", -123, "-123.000"), new ToStringTest ("F0", -123, "-123"), new ToStringTest ("E3", -123, "-1.230E+002"), new ToStringTest ("E0", -123, "-1E+002"), new ToStringTest ("E", -123, "-1.230000E+002"), new ToStringTest ("F3", Decimal.MinValue, "-79228162514264337593543950335.000"), new ToStringTest ("F", Decimal.MinValue, "-79228162514264337593543950335.00"), new ToStringTest ("F0", Decimal.MinValue, "-79228162514264337593543950335"), new ToStringTest ("E", Decimal.MinValue, "-7.922816E+028"), new ToStringTest ("E3", Decimal.MinValue, "-7.923E+028"), new ToStringTest ("E28", Decimal.MinValue, "-7.9228162514264337593543950335E+028"), #if !TARGET_JVM // TargetJvmNotWorking new ToStringTest ("E30", Decimal.MinValue, "-7.922816251426433759354395033500E+028"), #endif new ToStringTest ("E0", Decimal.MinValue, "-8E+028"), new ToStringTest ("N3", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335.000"), new ToStringTest ("N0", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335"), new ToStringTest ("N", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335.00"), new ToStringTest ("n3", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335.000"), new ToStringTest ("n0", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335"), new ToStringTest ("n", Decimal.MinValue, "-79,228,162,514,264,337,593,543,950,335.00"), new ToStringTest ("C", 123456.7890m, NumberFormatInfo.InvariantInfo.CurrencySymbol + "123,456.79"), new ToStringTest ("C", -123456.7890m, "(" + NumberFormatInfo.InvariantInfo.CurrencySymbol + "123,456.79)"), new ToStringTest ("C3", 1123456.7890m, NumberFormatInfo.InvariantInfo.CurrencySymbol + "1,123,456.789"), new ToStringTest ("P", 123456.7891m, "12,345,678.91 %"), new ToStringTest ("P", -123456.7892m, "-12,345,678.92 %"), new ToStringTest ("P3", 1234.56789m, "123,456.789 %"), }; NumberFormatInfo nfi = NumberFormatInfo.InvariantInfo; for (int i = 0; i < tab.Length; i++) { try { string s = tab [i].d.ToString (tab [i].format, nfi); AssertEquals ("A01 tab[" + i + "].format = '" + tab [i].format + "')", tab [i].str, s); } catch (OverflowException) { Fail (tab [i].d.ToString (tab [i].format, nfi) + " (format = '" + tab [i].format + "'): unexpected exception !"); } catch (NUnit.Framework.AssertionException e) { throw e; } catch (Exception e) { Fail ("Unexpected Exception when i = " + i + ". e = " + e); } } } [Test] public void TestCurrencyPattern () { NumberFormatInfo nfi2 = (NumberFormatInfo) NfiUser.Clone (); Decimal d = -1234567.8976m; string [] ergCurrencyNegativePattern = new String [16] { "(XYZ1234_5_67,898)", "-XYZ1234_5_67,898", "XYZ-1234_5_67,898", "XYZ1234_5_67,898-", "(1234_5_67,898XYZ)", "-1234_5_67,898XYZ", "1234_5_67,898-XYZ", "1234_5_67,898XYZ-", "-1234_5_67,898 XYZ", "-XYZ 1234_5_67,898", "1234_5_67,898 XYZ-", "XYZ 1234_5_67,898-", "XYZ -1234_5_67,898", "1234_5_67,898- XYZ", "(XYZ 1234_5_67,898)", "(1234_5_67,898 XYZ)", }; for (int i = 0; i < ergCurrencyNegativePattern.Length; i++) { nfi2.CurrencyNegativePattern = i; if (d.ToString ("C", nfi2) != ergCurrencyNegativePattern [i]) { Fail ("CurrencyNegativePattern #" + i + " failed: " + d.ToString ("C", nfi2) + " != " + ergCurrencyNegativePattern [i]); } } d = 1234567.8976m; string [] ergCurrencyPositivePattern = new String [4] { "XYZ1234_5_67,898", "1234_5_67,898XYZ", "XYZ 1234_5_67,898", "1234_5_67,898 XYZ", }; for (int i = 0; i < ergCurrencyPositivePattern.Length; i++) { nfi2.CurrencyPositivePattern = i; if (d.ToString ("C", nfi2) != ergCurrencyPositivePattern [i]) { Fail ("CurrencyPositivePattern #" + i + " failed: " + d.ToString ("C", nfi2) + " != " + ergCurrencyPositivePattern [i]); } } } [Test] public void TestNumberNegativePattern () { NumberFormatInfo nfi2 = (NumberFormatInfo) NfiUser.Clone (); Decimal d = -1234.89765m; string [] ergNumberNegativePattern = new String [5] { "(1__2__34##8977)", "-1__2__34##8977", "- 1__2__34##8977", "1__2__34##8977-", "1__2__34##8977 -", }; for (int i = 0; i < ergNumberNegativePattern.Length; i++) { nfi2.NumberNegativePattern = i; AssertEquals ("NumberNegativePattern #" + i, ergNumberNegativePattern [i], d.ToString ("N", nfi2)); } } [Test] [Category ("TargetJvmNotWorking")] public void TestPercentPattern () { NumberFormatInfo nfi2 = (NumberFormatInfo) NfiUser.Clone (); Decimal d = -1234.8976m; string [] ergPercentNegativePattern = new String [3] { "-1~2~3~4~8~9;8 %%%", "-1~2~3~4~8~9;8%%%", "-%%%1~2~3~4~8~9;8" }; for (int i = 0; i < ergPercentNegativePattern.Length; i++) { nfi2.PercentNegativePattern = i; if (d.ToString ("P", nfi2) != ergPercentNegativePattern [i]) { Fail ("PercentNegativePattern #" + i + " failed: " + d.ToString ("P", nfi2) + " != " + ergPercentNegativePattern [i]); } } d = 1234.8976m; string [] ergPercentPositivePattern = new String [3] { "1~2~3~4~8~9;8 %%%", "1~2~3~4~8~9;8%%%", "%%%1~2~3~4~8~9;8" }; for (int i = 0; i < ergPercentPositivePattern.Length; i++) { nfi2.PercentPositivePattern = i; if (d.ToString ("P", nfi2) != ergPercentPositivePattern [i]) { Fail ("PercentPositivePattern #" + i + " failed: " + d.ToString ("P", nfi2) + " != " + ergPercentPositivePattern [i]); } } } ParseTest [] tab = { new ParseTest("1.2345", 1.2345m), new ParseTest("-9876543210", -9876543210m), new ParseTest(NumberFormatInfo.InvariantInfo.CurrencySymbol + " ( 79,228,162,514,264,337,593,543,950,335.000 ) ", Decimal.MinValue, NumberStyles.Currency), new ParseTest("1.234567890e-10", (Decimal)1.234567890e-10, NumberStyles.Float), new ParseTest("1.234567890e-24", 1.2346e-24m, NumberStyles.Float), new ParseTest(" 47896396.457983645462346E10 ", 478963964579836454.62346m, NumberStyles.Float), new ParseTest("-7922816251426433759354395033.250000000000001", -7922816251426433759354395033.3m), new ParseTest("-00000000000000795033.2500000000000000", -795033.25m), new ParseTest("-000000000000001922816251426433759354395033.300000000000000", -1922816251426433759354395033.3m), new ParseTest("-7922816251426433759354395033.150000000000", -7922816251426433759354395033.2m), new ParseTest("-7922816251426433759354395033.2400000000000", -7922816251426433759354395033.2m), new ParseTest("-7922816251426433759354395033.2600000000000", -7922816251426433759354395033.3m) }; [Test] [Category ("TargetJvmNotWorking")] public void TestParse () { Decimal d; for (int i = 0; i < tab.Length; i++) { try { d = Decimal.Parse (tab [i].str, tab [i].style, NumberFormatInfo.InvariantInfo); if (tab [i].exceptionFlag) { Fail (tab [i].str + ": missing exception !"); } else if (d != tab [i].d) { Fail (tab [i].str + " != " + d); } } catch (OverflowException) { if (!tab [i].exceptionFlag) { Fail (tab [i].str + ": unexpected exception !"); } } } try { d = Decimal.Parse (null); Fail ("Expected ArgumentNullException"); } catch (ArgumentNullException) { //ok } try { d = Decimal.Parse ("123nx"); Fail ("Expected FormatException"); } catch (FormatException) { //ok } try { d = Decimal.Parse ("79228162514264337593543950336"); Fail ("Expected OverflowException" + d); } catch (OverflowException) { //ok } } [Test] public void TestConstants () { AssertEquals ("Zero", 0m, Decimal.Zero); AssertEquals ("One", 1m, Decimal.One); AssertEquals ("MinusOne", -1m, Decimal.MinusOne); AssertEquals ("MaxValue", 79228162514264337593543950335m, Decimal.MaxValue); AssertEquals ("MinValue", -79228162514264337593543950335m, Decimal.MinValue); Assert ("MinusOne 2", -1m == Decimal.MinusOne); } [Test] public void TestConstructInt32 () { decimal [] dtab = { 0m, 1m, -1m, 123456m, -1234567m }; int [] itab = { 0, 1, -1, 123456, -1234567 }; Decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = new Decimal (itab [i]); if ((decimal) d != dtab [i]) { Fail ("Int32 -> Decimal: " + itab [i] + " != " + d); } else { int n = (int) d; if (n != itab [i]) { Fail ("Decimal -> Int32: " + d + " != " + itab [i]); } } } d = new Decimal (Int32.MaxValue); Assert ((int) d == Int32.MaxValue); d = new Decimal (Int32.MinValue); Assert ((int) d == Int32.MinValue); } [Test] public void TestConstructUInt32 () { decimal [] dtab = { 0m, 1m, 123456m, 123456789m }; uint [] itab = { 0, 1, 123456, 123456789 }; Decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = new Decimal (itab [i]); if ((decimal) d != dtab [i]) { Fail ("UInt32 -> Decimal: " + itab [i] + " != " + d); } else { uint n = (uint) d; if (n != itab [i]) { Fail ("Decimal -> UInt32: " + d + " != " + itab [i]); } } } d = new Decimal (UInt32.MaxValue); Assert ((uint) d == UInt32.MaxValue); d = new Decimal (UInt32.MinValue); Assert ((uint) d == UInt32.MinValue); } [Test] public void TestConstructInt64 () { decimal [] dtab = { 0m, 1m, -1m, 9876543m, -9876543210m, 12345678987654321m }; long [] itab = { 0, 1, -1, 9876543, -9876543210L, 12345678987654321L }; Decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = new Decimal (itab [i]); if ((decimal) d != dtab [i]) { Fail ("Int64 -> Decimal: " + itab [i] + " != " + d); } else { long n = (long) d; if (n != itab [i]) { Fail ("Decimal -> Int64: " + d + " != " + itab [i]); } } } d = new Decimal (Int64.MaxValue); Assert ((long) d == Int64.MaxValue); d = new Decimal (Int64.MinValue); Assert ((long) d == Int64.MinValue); } [Test] public void TestConstructUInt64 () { decimal [] dtab = { 0m, 1m, 987654321m, 123456789876543210m }; ulong [] itab = { 0, 1, 987654321, 123456789876543210L }; Decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = new Decimal (itab [i]); if ((decimal) d != dtab [i]) { Fail ("UInt64 -> Decimal: " + itab [i] + " != " + d); } else { ulong n = (ulong) d; if (n != itab [i]) { Fail ("Decimal -> UInt64: " + d + " != " + itab [i]); } } } d = new Decimal (UInt64.MaxValue); Assert ((ulong) d == UInt64.MaxValue); d = new Decimal (UInt64.MinValue); Assert ((ulong) d == UInt64.MinValue); } [Test] public void TestConstructSingle () { Decimal d; d = new Decimal (-1.2345678f); AssertEquals ("A#01", -1.234568m, (decimal) d); d = 3; AssertEquals ("A#02", 3.0f, (float) d); d = new Decimal (0.0f); AssertEquals ("A#03", 0m, (decimal) d); AssertEquals ("A#04", 0.0f, (float) d); d = new Decimal (1.0f); AssertEquals ("A#05", 1m, (decimal) d); AssertEquals ("A#06", 1.0f, (float) d); d = new Decimal (-1.2345678f); AssertEquals ("A#07", -1.234568m, (decimal) d); AssertEquals ("A#08", -1.234568f, (float) d); d = new Decimal (1.2345673f); AssertEquals ("A#09", 1.234567m, (decimal) d); d = new Decimal (1.2345673e7f); AssertEquals ("A#10", 12345670m, (decimal) d); d = new Decimal (1.2345673e-17f); AssertEquals ("A#11", 0.00000000000000001234567m, (decimal) d); AssertEquals ("A#12", 1.234567e-17f, (float) d); // test exceptions try { d = new Decimal (Single.MaxValue); Fail (); } catch (OverflowException) { } try { d = new Decimal (Single.NaN); Fail (); } catch (OverflowException) { } try { d = new Decimal (Single.PositiveInfinity); Fail (); } catch (OverflowException) { } } [Test] public void TestConstructSingleRounding_NowWorking () { decimal d; d = new Decimal (1765.23454f); AssertEquals ("failed banker's rule rounding test 2", 1765.234m, d); d = new Decimal (0.00017652356f); AssertEquals ("06", 0.0001765236m, d); d = new Decimal (0.000176523554f); AssertEquals ("failed banker's rule rounding test 3", 0.0001765236m, d); d = new Decimal (0.00017652354f); AssertEquals ("08", 0.0001765235m, d); d = new Decimal (0.00017652346f); AssertEquals ("09", 0.0001765235m, d); d = new Decimal (0.000176523454f); AssertEquals ("failed banker's rule rounding test 4", 0.0001765234m, d); d = new Decimal (0.00017652344f); AssertEquals ("11", 0.0001765234m, d); } public void TestConstructSingleRounding () { decimal d; d = new Decimal (1765.2356f); Assert ("01", d == 1765.236m); d = new Decimal (1765.23554f); Assert ("failed banker's rule rounding test 1", d == 1765.236m); d = new Decimal (1765.2354f); Assert ("03", d == 1765.235m); d = new Decimal (1765.2346f); Assert ("04", d == 1765.235m); d = new Decimal (1765.2344f); Assert ("05", d == 1765.234m); d = new Decimal (3.7652356e10f); Assert ("12", d == 37652360000m); d = new Decimal (3.7652356e20f); Assert ("13", d == 376523600000000000000m); d = new Decimal (3.76523554e20f); Assert ("failed banker's rule rounding test 5", d == 376523600000000000000m); d = new Decimal (3.7652352e20f); Assert ("15", d == 376523500000000000000m); d = new Decimal (3.7652348e20f); Assert ("16", d == 376523500000000000000m); d = new Decimal (3.76523454e20f); Assert ("failed banker's rule rounding test 6", d == 376523400000000000000m); d = new Decimal (3.7652342e20f); Assert ("18", d == 376523400000000000000m); } [Test] public void TestConstructDouble () { Decimal d; d = new Decimal (0.0); Assert ((decimal) d == 0m); d = new Decimal (1.0); Assert ((decimal) d == 1m); Assert (1.0 == (double) d); d = new Decimal (-1.2345678901234); Assert ((decimal) d == -1.2345678901234m); Assert (-1.2345678901234 == (double) d); d = new Decimal (1.2345678901234); Assert ((decimal) d == 1.2345678901234m); d = new Decimal (1.2345678901234e8); Assert ((decimal) d == 123456789.01234m); Assert (1.2345678901234e8 == (double) d); d = new Decimal (1.2345678901234e16); Assert ((decimal) d == 12345678901234000m); Assert (1.2345678901234e16 == (double) d); d = new Decimal (1.2345678901234e24); Assert ((decimal) d == 1234567890123400000000000m); Assert (1.2345678901234e24 == (double) d); d = new Decimal (1.2345678901234e28); Assert ((decimal) d == 1.2345678901234e28m); Assert (1.2345678901234e28 == (double) d); d = new Decimal (7.2345678901234e28); Assert ((decimal) d == 7.2345678901234e28m); Assert (new Decimal ((double) d) == d); d = new Decimal (1.2345678901234e-8); Assert ((decimal) d == 1.2345678901234e-8m); d = new Decimal (1.2345678901234e-14); Assert ((decimal) d == 1.2345678901234e-14m); Assert (1.2345678901234e-14 == (double) d); d = new Decimal (1.2342278901234e-25); AssertEquals ("A10", d, 1.234e-25m); // test exceptions try { d = new Decimal (8e28); Fail (); } catch (OverflowException) { } try { d = new Decimal (8e48); Fail (); } catch (OverflowException) { } try { d = new Decimal (Double.NaN); Fail (); } catch (OverflowException) { } try { d = new Decimal (Double.PositiveInfinity); Fail (); } catch (OverflowException) { } } [Test] public void TestConstructDoubleRound () { decimal d; int TestNum = 1; try { d = new Decimal (1765.231234567857); AssertEquals ("A01", 1765.23123456786m, d); TestNum++; d = new Decimal (1765.2312345678554); AssertEquals ("A02, failed banker's rule rounding test 1", 1765.23123456786m, d); AssertEquals ("A03", 1765.23123456786, (double) d); TestNum++; d = new Decimal (1765.231234567853); Assert (d == 1765.23123456785m); TestNum++; d = new Decimal (1765.231234567847); Assert (d == 1765.23123456785m); TestNum++; d = new Decimal (1765.231234567843); Assert (d == 1765.23123456784m); TestNum++; d = new Decimal (1.765231234567857e-9); Assert (d == 1.76523123456786e-9m); TestNum++; d = new Decimal (1.7652312345678554e-9); Assert ("failed banker's rule rounding test 3", d == 1.76523123456786e-9m); TestNum++; d = new Decimal (1.765231234567853e-9); Assert (d == 1.76523123456785e-9m); TestNum++; d = new Decimal (1.765231234567857e+24); Assert (d == 1.76523123456786e+24m); TestNum++; d = new Decimal (1.7652312345678554e+24); Assert ("failed banker's rule rounding test 4", d == 1.76523123456786e+24m); TestNum++; d = new Decimal (1.765231234567853e+24); Assert (d == 1.76523123456785e+24m); TestNum++; d = new Decimal (1765.2312345678454); Assert (d == 1765.23123456785m); } catch (Exception e) { Fail ("At TestNum = " + TestNum + " unexpected exception. e = " + e); } } [Test] public void TestNegate () { decimal d; d = new Decimal (12345678); Assert ((decimal) Decimal.Negate (d) == -12345678m); } [Test] public void TestPartConstruct () { decimal d; d = new Decimal (parts0); Assert (d == 0); d = new Decimal (parts1); Assert (d == 1); d = new Decimal (parts2); Assert (d == 4294967296m); d = new Decimal (parts3); Assert (d == 18446744073709551616m); d = new Decimal (parts4); Assert (d == 0m); d = new Decimal (parts5); Assert (d == 18446744078004518913m); d = new Decimal (partsMaxValue); Assert (d == Decimal.MaxValue); d = new Decimal (partsMinValue); Assert (d == Decimal.MinValue); d = new Decimal (parts6); int [] erg = Decimal.GetBits (d); for (int i = 0; i < 4; i++) { Assert (erg [i] == parts6 [i]); } } [Test] public void TestFloorTruncate () { decimal [,] dtab = { {0m, 0m, 0m}, {1m, 1m, 1m}, {-1m, -1m, -1m}, {1.1m, 1m, 1m}, {-1.000000000001m, -2m, -1m}, {12345.67890m,12345m,12345m}, {-123456789012345.67890m, -123456789012346m, -123456789012345m}, {Decimal.MaxValue, Decimal.MaxValue, Decimal.MaxValue}, {Decimal.MinValue, Decimal.MinValue, Decimal.MinValue}, {6.999999999m, 6m, 6m}, {-6.999999999m, -7m, -6m}, {0.00001m, 0m, 0m}, {-0.00001m, -1m, 0m} }; decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = Decimal.Floor (dtab [i, 0]); if (d != dtab [i, 1]) { Fail ("Floor: Floor(" + dtab [i, 0] + ") != " + d); } d = Decimal.Truncate (dtab [i, 0]); if (d != dtab [i, 2]) { Fail ("Truncate: Truncate(" + dtab [i, 0] + ") != " + d); } } } [Test] public void Truncate () { decimal dd = 249.9m; decimal dt = Decimal.Truncate (dd); AssertEquals ("Original", 249.9m, dd); AssertEquals ("Truncate", 249m, dt); AssertEquals ("Cast-Byte", 249, (byte) dd); AssertEquals ("Cast-Char", 249, (char) dd); AssertEquals ("Cast-Int16", 249, (short) dd); AssertEquals ("Cast-UInt16", 249, (ushort) dd); AssertEquals ("Cast-Int32", 249, (int) dd); AssertEquals ("Cast-UInt32", 249, (uint) dd); AssertEquals ("Cast-Int64", 249, (long) dd); AssertEquals ("Cast-UInt64", 249, (ulong) dd); } [Test] public void TestRound () { decimal [,] dtab = { {1m, 0, 1m}, {1.234567890m, 1, 1.2m}, {1.234567890m, 2, 1.23m}, {1.23450000001m, 3, 1.235m}, {1.2355m, 3, 1.236m}, {1.234567890m, 4, 1.2346m}, {1.23567890m, 2, 1.24m}, {47893764694.4578563236436621m, 7, 47893764694.4578563m}, {-47893764694.4578563236436621m, 9, -47893764694.457856324m}, {-47893764694.4578m, 5, -47893764694.4578m} }; decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = Decimal.Round (dtab [i, 0], (int) dtab [i, 1]); if (d != dtab [i, 2]) { Fail ("Round: Round(" + dtab [i, 0] + "," + (int) dtab [i, 1] + ") != " + d); } } } [Test] public void TestRoundFailures () { decimal [,] dtab = { {1.2345m, 3, 1.234m} }; decimal d; for (int i = 0; i < dtab.GetLength (0); i++) { d = Decimal.Round (dtab [i, 0], (int) dtab [i, 1]); if (d != dtab [i, 2]) { Fail ("FailRound: Round(" + dtab [i, 0] + "," + (int) dtab [i, 1] + ") != " + d); } } } [Test] public void ParseInt64 () { long max = Int64.MaxValue; Decimal dmax = Decimal.Parse (max.ToString ()); AssertEquals ("Int64.MaxValue", Int64.MaxValue, Decimal.ToInt64 (dmax)); long min = Int64.MinValue; Decimal dmin = Decimal.Parse (min.ToString ()); AssertEquals ("Int64.MinValue", Int64.MinValue, Decimal.ToInt64 (dmin)); dmax += 1.1m; dmax = Decimal.Parse (dmax.ToString ()); AssertEquals ("Int64.MaxValue+1.1", Int64.MaxValue, Decimal.ToInt64 (dmax - 1.1m)); dmin -= 1.1m; dmin = Decimal.Parse (dmin.ToString ()); AssertEquals ("Int64.MinValue-1.1", Int64.MinValue, Decimal.ToInt64 (dmin + 1.1m)); } [Test] public void ToByte () { Decimal d = 254.9m; AssertEquals ("Decimal.ToByte", 254, Decimal.ToByte (d)); AssertEquals ("Convert.ToByte", 255, Convert.ToByte (d)); AssertEquals ("IConvertible.ToByte", 255, (d as IConvertible).ToByte (null)); } [Test] public void ToSByte () { Decimal d = 126.9m; AssertEquals ("Decimal.ToSByte", 126, Decimal.ToSByte (d)); AssertEquals ("Convert.ToSByte", 127, Convert.ToSByte (d)); AssertEquals ("IConvertible.ToSByte", 127, (d as IConvertible).ToSByte (null)); d = -d; AssertEquals ("-Decimal.ToSByte", -126, Decimal.ToSByte (d)); AssertEquals ("-Convert.ToSByte", -127, Convert.ToSByte (d)); AssertEquals ("-IConvertible.ToSByte", -127, (d as IConvertible).ToSByte (null)); } [Test] public void ToInt16 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToInt16", 254, Decimal.ToInt16 (d)); AssertEquals ("Convert.ToInt16", 255, Convert.ToInt16 (d)); AssertEquals ("IConvertible.ToInt16", 255, (d as IConvertible).ToInt16 (null)); d = -d; AssertEquals ("-Decimal.ToInt16", -254, Decimal.ToInt16 (d)); AssertEquals ("-Convert.ToInt16", -255, Convert.ToInt16 (d)); AssertEquals ("-IConvertible.ToInt16", -255, (d as IConvertible).ToInt16 (null)); } [Test] public void ToUInt16 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToUInt16", 254, Decimal.ToUInt16 (d)); AssertEquals ("Convert.ToUInt16", 255, Convert.ToUInt16 (d)); AssertEquals ("IConvertible.ToUInt16", 255, (d as IConvertible).ToUInt16 (null)); } [Test] public void ToInt32 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToInt32", 254, Decimal.ToInt32 (d)); AssertEquals ("Convert.ToInt32", 255, Convert.ToInt32 (d)); AssertEquals ("IConvertible.ToInt32", 255, (d as IConvertible).ToInt32 (null)); d = -d; AssertEquals ("-Decimal.ToInt32", -254, Decimal.ToInt32 (d)); AssertEquals ("-Convert.ToInt32", -255, Convert.ToInt32 (d)); AssertEquals ("-IConvertible.ToInt32", -255, (d as IConvertible).ToInt32 (null)); } [Test] public void ToUInt32 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToUInt32", 254, Decimal.ToUInt32 (d)); AssertEquals ("Convert.ToUInt32", 255, Convert.ToUInt32 (d)); AssertEquals ("IConvertible.ToUInt32", 255, (d as IConvertible).ToUInt32 (null)); } [Test] public void ToInt64 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToInt64", 254, Decimal.ToInt64 (d)); AssertEquals ("Convert.ToInt64", 255, Convert.ToInt64 (d)); AssertEquals ("IConvertible.ToInt64", 255, (d as IConvertible).ToInt64 (null)); d = -d; AssertEquals ("-Decimal.ToInt64", -254, Decimal.ToInt64 (d)); AssertEquals ("-Convert.ToInt64", -255, Convert.ToInt64 (d)); AssertEquals ("-IConvertible.ToInt64", -255, (d as IConvertible).ToInt64 (null)); } [Test] [ExpectedException (typeof (OverflowException))] public void ToInt64_TooBig () { Decimal d = (Decimal) Int64.MaxValue; d += 1.1m; long value = Decimal.ToInt64 (d); } [Test] [ExpectedException (typeof (OverflowException))] public void ToInt64_TooSmall () { Decimal d = (Decimal) Int64.MinValue; d -= 1.1m; long value = Decimal.ToInt64 (d); } [Test] public void ToUInt64 () { Decimal d = 254.9m; AssertEquals ("Decimal.ToUInt64", 254, Decimal.ToUInt64 (d)); AssertEquals ("Convert.ToUInt64", 255, Convert.ToUInt64 (d)); AssertEquals ("IConvertible.ToUInt64", 255, (d as IConvertible).ToUInt64 (null)); } [Test] public void ToSingle () { Decimal d = 254.9m; AssertEquals ("Decimal.ToSingle", 254.9f, Decimal.ToSingle (d)); AssertEquals ("Convert.ToSingle", 254.9f, Convert.ToSingle (d)); AssertEquals ("IConvertible.ToSingle", 254.9f, (d as IConvertible).ToSingle (null)); d = -d; AssertEquals ("-Decimal.ToSingle", -254.9f, Decimal.ToSingle (d)); AssertEquals ("-Convert.ToSingle", -254.9f, Convert.ToSingle (d)); AssertEquals ("-IConvertible.ToSingle", -254.9f, (d as IConvertible).ToSingle (null)); } [Test] public void ToDouble () { Decimal d = 254.9m; AssertEquals ("Decimal.ToDouble", 254.9d, Decimal.ToDouble (d)); AssertEquals ("Convert.ToDouble", 254.9d, Convert.ToDouble (d)); AssertEquals ("IConvertible.ToDouble", 254.9d, (d as IConvertible).ToDouble (null)); d = -d; AssertEquals ("-Decimal.ToDouble", -254.9d, Decimal.ToDouble (d)); AssertEquals ("-Convert.ToDouble", -254.9d, Convert.ToDouble (d)); AssertEquals ("-IConvertible.ToDouble", -254.9d, (d as IConvertible).ToDouble (null)); } [Test] public void ToString_Defaults () { Decimal d = 254.9m; // everything defaults to "G" string def = d.ToString ("G"); AssertEquals ("ToString()", def, d.ToString ()); AssertEquals ("ToString((IFormatProvider)null)", def, d.ToString ((IFormatProvider) null)); AssertEquals ("ToString((string)null)", def, d.ToString ((string) null)); AssertEquals ("ToString(empty)", def, d.ToString (String.Empty)); AssertEquals ("ToString(null,null)", def, d.ToString (null, null)); AssertEquals ("ToString(empty,null)", def, d.ToString (String.Empty, null)); AssertEquals ("ToString()", "254.9", def); } [Test] public void CastTruncRounding () { // casting truncs decimal value (not normal nor banker's rounding) AssertEquals ("254.9==254", 254, (long) (254.9m)); AssertEquals ("-254.9=-254", -254, (long) (-254.9m)); AssertEquals ("255.9==256", 255, (long) (255.9m)); AssertEquals ("-255.9=-256", -255, (long) (-255.9m)); } [Test] public void ParseFractions () { decimal d1 = Decimal.Parse ("0.523456789012345467890123456789", CultureInfo.InvariantCulture); AssertEquals ("f1", 0.5234567890123454678901234568m, d1); decimal d2 = Decimal.Parse ("0.49214206543486529434634231456", CultureInfo.InvariantCulture); AssertEquals ("f2", 0.4921420654348652943463423146m, d2); } [Test] [ExpectedException (typeof (OverflowException))] public void Parse_Int64_Overflow () { // Int64.MaxValue + 1 + small fraction to allow 30 digits // 123456789012345678901234567890 decimal d = Decimal.Parse ("9223372036854775808.0000000009", CultureInfo.InvariantCulture); long l = (long) d; } #if NET_2_0 [Test] [Category ("TargetJvmNotWorking")] public void TryParse () { Decimal r; // These should return false AssertEquals (false, Decimal.TryParse ("79228162514264337593543950336", out r)); AssertEquals (false, Decimal.TryParse ("123nx", NumberStyles.Number, CultureInfo.InvariantCulture, out r)); AssertEquals (false, Decimal.TryParse (null, NumberStyles.Number, CultureInfo.InvariantCulture, out r)); // These should pass for (int i = 0; i < tab.Length; i++) { AssertEquals (!tab [i].exceptionFlag, Decimal.TryParse (tab [i].str, tab [i].style, NumberFormatInfo.InvariantInfo, out r)); } } #endif [Test] [ExpectedException (typeof (DivideByZeroException))] public void Remainder_ByZero () { Decimal.Remainder (254.9m, 0m); } [Test] public void Remainder () { decimal p1 = 254.9m; decimal p2 = 12.1m; decimal n1 = -254.9m; decimal n2 = -12.1m; AssertEquals ("254.9 % 12.1", 0.8m, Decimal.Remainder (p1, p2)); AssertEquals ("-254.9 % 12.1", -0.8m, Decimal.Remainder (n1, p2)); AssertEquals ("254.9 % -12.1", 0.8m, Decimal.Remainder (p1, n2)); AssertEquals ("-254.9 % -12.1", -0.8m, Decimal.Remainder (n1, n2)); AssertEquals ("12.1 % 254.9", 12.1m, Decimal.Remainder (p2, p1)); AssertEquals ("-12.1 % 254.9", -12.1m, Decimal.Remainder (n2, p1)); AssertEquals ("12.1 % -254.9", 12.1m, Decimal.Remainder (p2, n1)); AssertEquals ("-12.1 % -254.9", -12.1m, Decimal.Remainder (n2, n1)); #if NET_2_0 AssertEquals ("12.1 % 12.1", 0.0m, Decimal.Remainder (p1, p1)); AssertEquals ("-12.1 % 12.1", 0.0m, Decimal.Remainder (n1, p1)); AssertEquals ("12.1 % -12.1", 0.0m, Decimal.Remainder (p1, n1)); AssertEquals ("-12.1 % -12.1", 0.0m, Decimal.Remainder (n1, n1)); #else AssertEquals ("12.1 % 12.1", 0, Decimal.Remainder (p1, p1)); AssertEquals ("-12.1 % 12.1", 0, Decimal.Remainder (n1, p1)); AssertEquals ("12.1 % -12.1", 0, Decimal.Remainder (p1, n1)); AssertEquals ("-12.1 % -12.1", 0, Decimal.Remainder (n1, n1)); #endif } [Test] [ExpectedException (typeof (DivideByZeroException))] public void Divide_ByZero () { Decimal.Divide (254.9m, 0m); } [Test] public void Divide () { decimal p1 = 254.9m; decimal p2 = 12.1m; decimal n1 = -254.9m; decimal n2 = -12.1m; decimal c1 = 21.066115702479338842975206612m; decimal c2 = 0.0474695959199686151431934092m; AssertEquals ("254.9 / 12.1", c1, Decimal.Divide (p1, p2)); AssertEquals ("-254.9 / 12.1", -c1, Decimal.Divide (n1, p2)); AssertEquals ("254.9 / -12.1", -c1, Decimal.Divide (p1, n2)); AssertEquals ("-254.9 / -12.1", c1, Decimal.Divide (n1, n2)); AssertEquals ("12.1 / 254.9", c2, Decimal.Divide (p2, p1)); AssertEquals ("-12.1 / 254.9", -c2, Decimal.Divide (n2, p1)); AssertEquals ("12.1 / -254.9", -c2, Decimal.Divide (p2, n1)); AssertEquals ("-12.1 / -254.9", c2, Decimal.Divide (n2, n1)); AssertEquals ("12.1 / 12.1", 1, Decimal.Divide (p1, p1)); AssertEquals ("-12.1 / 12.1", -1, Decimal.Divide (n1, p1)); AssertEquals ("12.1 / -12.1", -1, Decimal.Divide (p1, n1)); AssertEquals ("-12.1 / -12.1", 1, Decimal.Divide (n1, n1)); } [Test] [ExpectedException (typeof (ArgumentOutOfRangeException))] public void Round_InvalidDecimals_Negative () { Decimal.Round (254.9m, -1); } [Test] [ExpectedException (typeof (ArgumentOutOfRangeException))] public void Round_InvalidDecimals_TooHigh () { Decimal.Round (254.9m, 29); } [Test] public void Round_OddValue () { decimal five = 5.5555555555555555555555555555m; AssertEquals ("5,5_,00", 6, Decimal.Round (five, 0)); AssertEquals ("5,5_,01", 5.6m, Decimal.Round (five, 1)); AssertEquals ("5,5_,02", 5.56m, Decimal.Round (five, 2)); AssertEquals ("5,5_,03", 5.556m, Decimal.Round (five, 3)); AssertEquals ("5,5_,04", 5.5556m, Decimal.Round (five, 4)); AssertEquals ("5,5_,05", 5.55556m, Decimal.Round (five, 5)); AssertEquals ("5,5_,06", 5.555556m, Decimal.Round (five, 6)); AssertEquals ("5,5_,07", 5.5555556m, Decimal.Round (five, 7)); AssertEquals ("5,5_,08", 5.55555556m, Decimal.Round (five, 8)); AssertEquals ("5,5_,09", 5.555555556m, Decimal.Round (five, 9)); AssertEquals ("5,5_,10", 5.5555555556m, Decimal.Round (five, 10)); AssertEquals ("5,5_,11", 5.55555555556m, Decimal.Round (five, 11)); AssertEquals ("5,5_,12", 5.555555555556m, Decimal.Round (five, 12)); AssertEquals ("5,5_,13", 5.5555555555556m, Decimal.Round (five, 13)); AssertEquals ("5,5_,14", 5.55555555555556m, Decimal.Round (five, 14)); AssertEquals ("5,5_,15", 5.555555555555556m, Decimal.Round (five, 15)); AssertEquals ("5,5_,16", 5.5555555555555556m, Decimal.Round (five, 16)); AssertEquals ("5,5_,17", 5.55555555555555556m, Decimal.Round (five, 17)); AssertEquals ("5,5_,18", 5.555555555555555556m, Decimal.Round (five, 18)); AssertEquals ("5,5_,19", 5.5555555555555555556m, Decimal.Round (five, 19)); AssertEquals ("5,5_,20", 5.55555555555555555556m, Decimal.Round (five, 20)); AssertEquals ("5,5_,21", 5.555555555555555555556m, Decimal.Round (five, 21)); AssertEquals ("5,5_,22", 5.5555555555555555555556m, Decimal.Round (five, 22)); AssertEquals ("5,5_,23", 5.55555555555555555555556m, Decimal.Round (five, 23)); AssertEquals ("5,5_,24", 5.555555555555555555555556m, Decimal.Round (five, 24)); AssertEquals ("5,5_,25", 5.5555555555555555555555556m, Decimal.Round (five, 25)); AssertEquals ("5,5_,26", 5.55555555555555555555555556m, Decimal.Round (five, 26)); AssertEquals ("5,5_,27", 5.555555555555555555555555556m, Decimal.Round (five, 27)); AssertEquals ("5.5_,28", 5.5555555555555555555555555555m, Decimal.Round (five, 28)); } [Test] public void Round_EvenValue () { AssertEquals ("2,2_5,00", 2, Decimal.Round (2.5m, 0)); AssertEquals ("2,2_5,01", 2.2m, Decimal.Round (2.25m, 1)); AssertEquals ("2,2_5,02", 2.22m, Decimal.Round (2.225m, 2)); AssertEquals ("2,2_5,03", 2.222m, Decimal.Round (2.2225m, 3)); AssertEquals ("2,2_5,04", 2.2222m, Decimal.Round (2.22225m, 4)); AssertEquals ("2,2_5,05", 2.22222m, Decimal.Round (2.222225m, 5)); AssertEquals ("2,2_5,06", 2.222222m, Decimal.Round (2.2222225m, 6)); AssertEquals ("2,2_5,07", 2.2222222m, Decimal.Round (2.22222225m, 7)); AssertEquals ("2,2_5,08", 2.22222222m, Decimal.Round (2.222222225m, 8)); AssertEquals ("2,2_5,09", 2.222222222m, Decimal.Round (2.2222222225m, 9)); AssertEquals ("2,2_5,10", 2.2222222222m, Decimal.Round (2.22222222225m, 10)); AssertEquals ("2,2_5,11", 2.22222222222m, Decimal.Round (2.222222222225m, 11)); AssertEquals ("2,2_5,12", 2.222222222222m, Decimal.Round (2.2222222222225m, 12)); AssertEquals ("2,2_5,13", 2.2222222222222m, Decimal.Round (2.22222222222225m, 13)); AssertEquals ("2,2_5,14", 2.22222222222222m, Decimal.Round (2.222222222222225m, 14)); AssertEquals ("2,2_5,15", 2.222222222222222m, Decimal.Round (2.2222222222222225m, 15)); AssertEquals ("2,2_5,16", 2.2222222222222222m, Decimal.Round (2.22222222222222225m, 16)); AssertEquals ("2,2_5,17", 2.22222222222222222m, Decimal.Round (2.222222222222222225m, 17)); AssertEquals ("2,2_5,18", 2.222222222222222222m, Decimal.Round (2.2222222222222222225m, 18)); AssertEquals ("2,2_5,19", 2.2222222222222222222m, Decimal.Round (2.22222222222222222225m, 19)); AssertEquals ("2,2_5,20", 2.22222222222222222222m, Decimal.Round (2.222222222222222222225m, 20)); AssertEquals ("2,2_5,21", 2.222222222222222222222m, Decimal.Round (2.2222222222222222222225m, 21)); AssertEquals ("2,2_5,22", 2.2222222222222222222222m, Decimal.Round (2.22222222222222222222225m, 22)); AssertEquals ("2,2_5,23", 2.22222222222222222222222m, Decimal.Round (2.222222222222222222222225m, 23)); AssertEquals ("2,2_5,24", 2.222222222222222222222222m, Decimal.Round (2.2222222222222222222222225m, 24)); AssertEquals ("2,2_5,25", 2.2222222222222222222222222m, Decimal.Round (2.22222222222222222222222225m, 25)); AssertEquals ("2,2_5,26", 2.22222222222222222222222222m, Decimal.Round (2.222222222222222222222222225m, 26)); AssertEquals ("2,2_5,27", 2.222222222222222222222222222m, Decimal.Round (2.2222222222222222222222222225m, 27)); AssertEquals ("2,2_5,28", 2.2222222222222222222222222222m, Decimal.Round (2.22222222222222222222222222225m, 28)); } [Test] public void Round_OddValue_Negative () { decimal five = -5.5555555555555555555555555555m; AssertEquals ("-5,5_,00", -6, Decimal.Round (five, 0)); AssertEquals ("-5,5_,01", -5.6m, Decimal.Round (five, 1)); AssertEquals ("-5,5_,02", -5.56m, Decimal.Round (five, 2)); AssertEquals ("-5,5_,03", -5.556m, Decimal.Round (five, 3)); AssertEquals ("-5,5_,04", -5.5556m, Decimal.Round (five, 4)); AssertEquals ("-5,5_,05", -5.55556m, Decimal.Round (five, 5)); AssertEquals ("-5,5_,06", -5.555556m, Decimal.Round (five, 6)); AssertEquals ("-5,5_,07", -5.5555556m, Decimal.Round (five, 7)); AssertEquals ("-5,5_,08", -5.55555556m, Decimal.Round (five, 8)); AssertEquals ("-5,5_,09", -5.555555556m, Decimal.Round (five, 9)); AssertEquals ("-5,5_,10", -5.5555555556m, Decimal.Round (five, 10)); AssertEquals ("-5,5_,11", -5.55555555556m, Decimal.Round (five, 11)); AssertEquals ("-5,5_,12", -5.555555555556m, Decimal.Round (five, 12)); AssertEquals ("-5,5_,13", -5.5555555555556m, Decimal.Round (five, 13)); AssertEquals ("-5,5_,14", -5.55555555555556m, Decimal.Round (five, 14)); AssertEquals ("-5,5_,15", -5.555555555555556m, Decimal.Round (five, 15)); AssertEquals ("-5,5_,16", -5.5555555555555556m, Decimal.Round (five, 16)); AssertEquals ("-5,5_,17", -5.55555555555555556m, Decimal.Round (five, 17)); AssertEquals ("-5,5_,18", -5.555555555555555556m, Decimal.Round (five, 18)); AssertEquals ("-5,5_,19", -5.5555555555555555556m, Decimal.Round (five, 19)); AssertEquals ("-5,5_,20", -5.55555555555555555556m, Decimal.Round (five, 20)); AssertEquals ("-5,5_,21", -5.555555555555555555556m, Decimal.Round (five, 21)); AssertEquals ("-5,5_,22", -5.5555555555555555555556m, Decimal.Round (five, 22)); AssertEquals ("-5,5_,23", -5.55555555555555555555556m, Decimal.Round (five, 23)); AssertEquals ("-5,5_,24", -5.555555555555555555555556m, Decimal.Round (five, 24)); AssertEquals ("-5,5_,25", -5.5555555555555555555555556m, Decimal.Round (five, 25)); AssertEquals ("-5,5_,26", -5.55555555555555555555555556m, Decimal.Round (five, 26)); AssertEquals ("-5,5_,27", -5.555555555555555555555555556m, Decimal.Round (five, 27)); AssertEquals ("-5.5_,28", -5.5555555555555555555555555555m, Decimal.Round (five, 28)); } [Test] public void Round_EvenValue_Negative () { AssertEquals ("-2,2_5,00", -2, Decimal.Round (-2.5m, 0)); AssertEquals ("-2,2_5,01", -2.2m, Decimal.Round (-2.25m, 1)); AssertEquals ("-2,2_5,02", -2.22m, Decimal.Round (-2.225m, 2)); AssertEquals ("-2,2_5,03", -2.222m, Decimal.Round (-2.2225m, 3)); AssertEquals ("-2,2_5,04", -2.2222m, Decimal.Round (-2.22225m, 4)); AssertEquals ("-2,2_5,05", -2.22222m, Decimal.Round (-2.222225m, 5)); AssertEquals ("-2,2_5,06", -2.222222m, Decimal.Round (-2.2222225m, 6)); AssertEquals ("-2,2_5,07", -2.2222222m, Decimal.Round (-2.22222225m, 7)); AssertEquals ("-2,2_5,08", -2.22222222m, Decimal.Round (-2.222222225m, 8)); AssertEquals ("-2,2_5,09", -2.222222222m, Decimal.Round (-2.2222222225m, 9)); AssertEquals ("-2,2_5,10", -2.2222222222m, Decimal.Round (-2.22222222225m, 10)); AssertEquals ("-2,2_5,11", -2.22222222222m, Decimal.Round (-2.222222222225m, 11)); AssertEquals ("-2,2_5,12", -2.222222222222m, Decimal.Round (-2.2222222222225m, 12)); AssertEquals ("-2,2_5,13", -2.2222222222222m, Decimal.Round (-2.22222222222225m, 13)); AssertEquals ("-2,2_5,14", -2.22222222222222m, Decimal.Round (-2.222222222222225m, 14)); AssertEquals ("-2,2_5,15", -2.222222222222222m, Decimal.Round (-2.2222222222222225m, 15)); AssertEquals ("-2,2_5,16", -2.2222222222222222m, Decimal.Round (-2.22222222222222225m, 16)); AssertEquals ("-2,2_5,17", -2.22222222222222222m, Decimal.Round (-2.222222222222222225m, 17)); AssertEquals ("-2,2_5,18", -2.222222222222222222m, Decimal.Round (-2.2222222222222222225m, 18)); AssertEquals ("-2,2_5,19", -2.2222222222222222222m, Decimal.Round (-2.22222222222222222225m, 19)); AssertEquals ("-2,2_5,20", -2.22222222222222222222m, Decimal.Round (-2.222222222222222222225m, 20)); AssertEquals ("-2,2_5,21", -2.222222222222222222222m, Decimal.Round (-2.2222222222222222222225m, 21)); AssertEquals ("-2,2_5,22", -2.2222222222222222222222m, Decimal.Round (-2.22222222222222222222225m, 22)); AssertEquals ("-2,2_5,23", -2.22222222222222222222222m, Decimal.Round (-2.222222222222222222222225m, 23)); AssertEquals ("-2,2_5,24", -2.222222222222222222222222m, Decimal.Round (-2.2222222222222222222222225m, 24)); AssertEquals ("-2,2_5,25", -2.2222222222222222222222222m, Decimal.Round (-2.22222222222222222222222225m, 25)); AssertEquals ("-2,2_5,26", -2.22222222222222222222222222m, Decimal.Round (-2.222222222222222222222222225m, 26)); AssertEquals ("-2,2_5,27", -2.222222222222222222222222222m, Decimal.Round (-2.2222222222222222222222222225m, 27)); AssertEquals ("-2,2_5,28", -2.2222222222222222222222222222m, Decimal.Round (-2.22222222222222222222222222225m, 28)); } [Test] // bug #59425 public void ParseAndKeepPrecision () { string value = "5"; AssertEquals (value, value, Decimal.Parse (value).ToString ()); value += '.'; for (int i = 0; i < 28; i++) { value += "0"; AssertEquals (i.ToString (), value, Decimal.Parse (value).ToString ()); } value = "-5"; AssertEquals (value, value, Decimal.Parse (value).ToString ()); value += '.'; for (int i = 0; i < 28; i++) { value += "0"; AssertEquals ("-" + i.ToString (), value, Decimal.Parse (value).ToString ()); } } [Test] public void ToString_G () { AssertEquals ("00", "1.0", (1.0m).ToString ()); AssertEquals ("01", "0.1", (0.1m).ToString ()); AssertEquals ("02", "0.01", (0.01m).ToString ()); AssertEquals ("03", "0.001", (0.001m).ToString ()); AssertEquals ("04", "0.0001", (0.0001m).ToString ()); AssertEquals ("05", "0.00001", (0.00001m).ToString ()); AssertEquals ("06", "0.000001", (0.000001m).ToString ()); AssertEquals ("07", "0.0000001", (0.0000001m).ToString ()); AssertEquals ("08", "0.00000001", (0.00000001m).ToString ()); AssertEquals ("09", "0.000000001", (0.000000001m).ToString ()); AssertEquals ("10", "0.0000000001", (0.0000000001m).ToString ()); AssertEquals ("11", "0.00000000001", (0.00000000001m).ToString ()); AssertEquals ("12", "0.000000000001", (0.000000000001m).ToString ()); AssertEquals ("13", "0.0000000000001", (0.0000000000001m).ToString ()); AssertEquals ("14", "0.00000000000001", (0.00000000000001m).ToString ()); AssertEquals ("15", "0.000000000000001", (0.000000000000001m).ToString ()); AssertEquals ("16", "0.0000000000000001", (0.0000000000000001m).ToString ()); AssertEquals ("17", "0.00000000000000001", (0.00000000000000001m).ToString ()); AssertEquals ("18", "0.000000000000000001", (0.000000000000000001m).ToString ()); AssertEquals ("19", "0.0000000000000000001", (0.0000000000000000001m).ToString ()); AssertEquals ("20", "0.00000000000000000001", (0.00000000000000000001m).ToString ()); AssertEquals ("21", "0.000000000000000000001", (0.000000000000000000001m).ToString ()); AssertEquals ("22", "0.0000000000000000000001", (0.0000000000000000000001m).ToString ()); AssertEquals ("23", "0.00000000000000000000001", (0.00000000000000000000001m).ToString ()); AssertEquals ("24", "0.000000000000000000000001", (0.000000000000000000000001m).ToString ()); AssertEquals ("25", "0.0000000000000000000000001", (0.0000000000000000000000001m).ToString ()); AssertEquals ("26", "0.00000000000000000000000001", (0.00000000000000000000000001m).ToString ()); AssertEquals ("27", "0.000000000000000000000000001", (0.000000000000000000000000001m).ToString ()); AssertEquals ("28", "0.0000000000000000000000000001", (0.0000000000000000000000000001m).ToString ()); } #if NET_2_0 [Test] public void MidpointRoundingAwayFromZero () { MidpointRounding m = MidpointRounding.AwayFromZero; AssertEquals ("#1", 4, Math.Round (3.5M, m)); AssertEquals ("#2", 3, Math.Round (2.8M, m)); AssertEquals ("#3", 3, Math.Round (2.5M, m)); AssertEquals ("#4", 2, Math.Round (2.1M, m)); AssertEquals ("#5", -2, Math.Round (-2.1M, m)); AssertEquals ("#6", -3, Math.Round (-2.5M, m)); AssertEquals ("#7", -3, Math.Round (-2.8M, m)); AssertEquals ("#8", -4, Math.Round (-3.5M, m)); AssertEquals ("#9", 3.1M, Math.Round (3.05M, 1, m)); AssertEquals ("#10", 2.1M, Math.Round (2.08M, 1, m)); AssertEquals ("#11", 2.1M, Math.Round (2.05M, 1, m)); AssertEquals ("#12", 2.0M, Math.Round (2.01M, 1, m)); AssertEquals ("#13", -2.0M, Math.Round (-2.01M, 1, m)); AssertEquals ("#14", -2.1M, Math.Round (-2.05M, 1, m)); AssertEquals ("#15", -2.1M, Math.Round (-2.08M, 1, m)); AssertEquals ("#16", -3.1M, Math.Round (-3.05M, 1, m)); } #endif } }