mcs/class/corlib/Test/System/FloatingPointFormatterTest.cs

   1 // FloatingPointFormatterTest.cs - NUnit Test Cases for the System.FloatingPointFormatter class
   2 //
   3 // Authors:
   4 //      Duncan Mak (duncan@ximian.com)
   5 //      Atsushi Enomoto (atsushi@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc.  http://www.ximian.com
   8 // (C) 2004 Novell Inc.
   9 //
  10
  11 using System;
  12 using System.Globalization;
  13 using System.IO;
  14 using System.Threading;
  15
  16 using NUnit.Framework;
  17
  18 namespace MonoTests.System
  19 {
  20         [TestFixture]
  21         public class FloatingPointFormatterTest
  22         {
  23                 CultureInfo old_culture;
  24
  25                 [SetUp]
  26                 public void SetUp ()
  27                 {
  28                         old_culture = Thread.CurrentThread.CurrentCulture;
  29                         Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US", false);
  30                 }
  31
  32                 [TearDown]
  33                 public void TearDown ()
  34                 {
  35                         Thread.CurrentThread.CurrentCulture = old_culture;
  36                 }
  37
  38                 [Test]
  39                 public void Format1 ()
  40                 {
  41                         Assert.AreEqual ("100000000000000", 1.0e+14.ToString (), "F1");
  42                         Assert.AreEqual ("1E+15", 1.0e+15.ToString (), "F2");
  43                         Assert.AreEqual ("1E+16", 1.0e+16.ToString (), "F3");
  44                         Assert.AreEqual ("1E+17", 1.0e+17.ToString (), "F4");
  45                 }
  46
  47                 [Test]
  48                 public void FormatStartsWithDot ()
  49                 {
  50                         CultureInfo ci = new CultureInfo ("en-US");
  51                         double val = 12345.1234567890123456;
  52                         string s = val.ToString(".0################;-.0################;0.0", ci);
  53                         Assert.AreEqual ("12345.123456789", s, "#1");
  54
  55                         s = (-val).ToString(".0################;-.0#######;#########;0.0", ci);
  56                         Assert.AreEqual ("-12345.12345679", s, "#2");
  57
  58                         s = 0.0.ToString(".0################;-.0#######;+-0", ci);
  59                         Assert.AreEqual ("+-0", s, "#3");
  60                 }
  61
  62                 [Test]
  63                 public void PermillePercent ()
  64                 {
  65                         CultureInfo ci = CultureInfo.InvariantCulture;
  66                         Assert.AreEqual ("485.7\u2030", (0.4857).ToString ("###.###\u2030"), "#1");
  67                         NumberFormatInfo nfi = new NumberFormatInfo ();
  68                         nfi.NegativeSign = "";
  69                         nfi.PerMilleSymbol = "m";
  70                         nfi.PercentSymbol = "percent";
  71                         Assert.AreEqual ("m485.7", 0.4857.ToString ("\u2030###.###", nfi), "#2");
  72                         Assert.AreEqual ("485.7m", 0.4857.ToString ("###.###\u2030", nfi), "#3");
  73                         Assert.AreEqual ("percent48.57", 0.4857.ToString ("%###.###", nfi), "#4");
  74                         Assert.AreEqual ("48.57percent", 0.4857.ToString ("###.###%", nfi), "#5");
  75                 }
  76
  77                 [Test]
  78                 public void LiteralMixed ()
  79                 {
  80                         CultureInfo ci = CultureInfo.InvariantCulture;
  81                         Assert.AreEqual ("test 235", 234.56.ToString ("'test' ###", ci), "#1");
  82                         Assert.AreEqual ("235 test", 234.56.ToString ("### 'test'", ci), "#2");
  83                         Assert.AreEqual ("234 test.56", 234.56.ToString ("### 'test'.###", ci), "#3");
  84                         Assert.AreEqual ("hoge 235", 234.56.ToString ("'hoge' ###", ci), "#1");
  85                         Assert.AreEqual ("235 hoge", 234.56.ToString ("### 'hoge'", ci), "#2");
  86                         Assert.AreEqual ("234 hoge.56", 234.56.ToString ("### 'hoge'.###", ci), "#3");
  87                 }
  88         }
  89 }