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1 using System;
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2 #if ORACLE
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3 using Oracle.DataAccess.Types;
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4 #endif
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5 using System.Reflection;
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6 using BLToolkit.Common;
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7 using BLToolkit.Reflection;
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8
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9 using NUnit.Framework;
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10
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11 using Convert = BLToolkit.Common.Convert;
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12
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13 namespace Common
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14 {
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15 [TestFixture]
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16 public class ConvertTest
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17 {
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18 [Test]
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19 public void StringTest()
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20 {
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21 string testStr = "123";
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22
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23 Assert.AreEqual(123, Convert.ToSByte(testStr));
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24 Assert.AreEqual(123, Convert.ToInt16(testStr));
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25 Assert.AreEqual(123, Convert.ToInt32(testStr));
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26 Assert.AreEqual(123, Convert.ToInt64(testStr));
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27
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28 Assert.AreEqual(123, Convert.ToByte(testStr));
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29 Assert.AreEqual(123, Convert.ToUInt16(testStr));
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30 Assert.AreEqual(123, Convert.ToUInt32(testStr));
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31 Assert.AreEqual(123, Convert.ToUInt64(testStr));
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32
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33 Assert.AreEqual(123.0m, Convert.ToDecimal(testStr));
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34 Assert.AreEqual(123.0f, Convert.ToSingle(testStr));
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35 Assert.AreEqual(123.0, Convert.ToDouble(testStr));
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36
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37 string zeroStr = "0";
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38
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39 Assert.AreEqual(0, Convert.ToSByte((string)null));
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40 Assert.AreEqual(0, Convert.ToSByte(zeroStr));
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41 Assert.AreEqual(0, Convert.ToInt16(zeroStr));
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42 Assert.AreEqual(0, Convert.ToInt32(zeroStr));
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43 Assert.AreEqual(0, Convert.ToInt64(zeroStr));
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44
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45 Assert.AreEqual(0, Convert.ToByte(zeroStr));
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46 Assert.AreEqual(0, Convert.ToUInt16(zeroStr));
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47 Assert.AreEqual(0, Convert.ToUInt32(zeroStr));
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48 Assert.AreEqual(0, Convert.ToUInt64(zeroStr));
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49
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50 Assert.AreEqual(0.0m, Convert.ToDecimal(zeroStr));
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51 Assert.AreEqual(0.0f, Convert.ToSingle(zeroStr));
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52 Assert.AreEqual(0.0, Convert.ToDouble(zeroStr));
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53
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54 Assert.IsTrue(Convert.ToBoolean("True"));
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55 Assert.IsTrue(Convert.ToBoolean("true"));
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56
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57 Assert.IsFalse(Convert.ToBoolean("false"));
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58 Assert.IsFalse(Convert.ToBoolean("FALSE"));
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59 Assert.IsFalse(Convert.ToBoolean((string)null));
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60
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61 Assert.AreEqual('T', Convert.ToChar("T"));
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62 Assert.AreEqual(0, Convert.ToChar((string)null));
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63
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64 Assert.AreEqual(DateTime.Today, Convert.ToDateTime(DateTime.Today.ToString()));
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65 Assert.AreEqual(DateTime.MinValue, Convert.ToDateTime((string)null));
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66
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67 Assert.AreEqual(TimeSpan.FromDays(123.0), Convert.ToTimeSpan("123"));
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68 Assert.AreEqual(TimeSpan.MinValue, Convert.ToTimeSpan((string)null));
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69
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70 Assert.AreEqual(typeof(int).GUID, Convert.ToGuid(typeof(int).GUID.ToString()));
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71 Assert.AreEqual(Guid.Empty, Convert.ToGuid((string)null));
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72
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73 Assert.AreEqual(typeof(int), Convert.ToType("System.Int32, mscorlib"));
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74 Assert.IsNull(Convert.ToType((string)null));
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75 }
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76
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77 private static readonly Type[] NumericTypes =
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78 {
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79 typeof(SByte),
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80 typeof(Byte),
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81 typeof(Int16),
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82 typeof(UInt16),
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83 typeof(Int32),
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84 typeof(UInt32),
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85 typeof(Int64),
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86 typeof(UInt64),
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87 typeof(Single),
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88 typeof(Double),
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89 typeof(Decimal),
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90 };
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91
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92 private const BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Static;
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93
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94 [Test]
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95 public void NumericTest()
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96 {
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97 TypeHelper helper = new TypeHelper(typeof(Convert));
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98 IConvertible src = 123;
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99
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100 // All types from SByte to Decimal can convert to each other
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101 //
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102 for (int from = 0; from < NumericTypes.Length; ++from)
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103 {
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104 Type typeFrom = NumericTypes[from];
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105 object test = src.ToType(typeFrom, null);
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106
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107 for (int to = 0; to < NumericTypes.Length; ++to)
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108 {
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109 if (from == to)
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110 continue;
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111
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112 Type typeTo = NumericTypes[to];
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113 MethodInfo mi = helper.GetMethod("To" + typeTo.Name, bindingFlags, typeFrom);
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114
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115 Assert.IsNotNull(mi, string.Format("Missed To{0}({1})", typeTo.Name, typeFrom.Name));
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116 Assert.AreEqual(123, mi.Invoke(null, new object[] { test }));
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117 }
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118 }
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119 }
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120
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121 [Test]
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122 public void DateTimeTest()
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123 {
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124 Assert.AreEqual(DateTime.MinValue + TimeSpan.FromDays(1), Convert.ToDateTime(1.0));
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125 Assert.AreEqual(TimeSpan.FromDays(1), Convert.ToTimeSpan(1.0));
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126
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127 Assert.AreEqual(DateTime.MinValue + TimeSpan.FromTicks(1), Convert.ToDateTime(1L));
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128 Assert.AreEqual(TimeSpan.FromTicks(1), Convert.ToTimeSpan(1L));
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129 }
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130
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131 [Test]
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132 public void InterfaceTest()
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133 {
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134 Assert.AreEqual(123, ConvertTo<IConvertible>.From(123).ToByte(null));
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135 }
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136
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137 [Test]
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138 public void EnumTest()
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139 {
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140 // Enum-to-enum.
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141 //
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142 Assert.AreEqual(BindingFlags.DeclaredOnly,
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143 ConvertTo<BindingFlags>.From(CallingConventions.VarArgs));
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144
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145 // Enum-to-nullable byte.
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146 //
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147 Assert.AreEqual((byte?)BindingFlags.DeclaredOnly,
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148 ConvertTo<byte?>.From(BindingFlags.DeclaredOnly));
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149
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150 // Nullable Enum-to-nullable enum.
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151 //
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152 Assert.AreEqual((CallingConventions?)CallingConventions.VarArgs,
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153 ConvertTo<CallingConventions?>.From((BindingFlags?)BindingFlags.DeclaredOnly));
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154
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155 // Integer-to-enum.
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156 //
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157 Assert.AreEqual(BindingFlags.DeclaredOnly,
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158 ConvertTo<BindingFlags>.From((int)BindingFlags.DeclaredOnly));
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159
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160 // Integer-to-nullable enum.
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161 //
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162 Assert.AreEqual(BindingFlags.DeclaredOnly,
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163 ConvertTo<BindingFlags?>.From((int)BindingFlags.DeclaredOnly));
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164
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165 }
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166
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167 [Test]
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168 public void ByteArrayTest()
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169 {
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170 Byte[] bytes;
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171 object value;
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172
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173 bytes = new byte[] {123};
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174 value = (byte)123;
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175 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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176 Assert.AreEqual(value, Convert.ToByte(bytes));
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177
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178 bytes = new byte[] {123, 0};
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179 value = (short)123;
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180 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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181 Assert.AreEqual(value, Convert.ToInt16(bytes));
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182
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183 bytes = new byte[] {210, 2, 150, 73};
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184 value = 1234567890;
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185 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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186 Assert.AreEqual(value, Convert.ToInt32(bytes));
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187
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188 bytes = new byte[] {(byte) 't', (byte) 's', (byte) 't'};
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189 value = "tst";
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190 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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191 Assert.AreEqual(value, Convert.ToString(bytes));
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192
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193 bytes = new byte[] {12, 0, 0, 0, 0, 0, 0, 0, 192, 0, 0, 0, 0, 0, 0, 70};
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194 value = typeof(System.Runtime.InteropServices.ComTypes.IStream).GUID;
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195 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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196 Assert.AreEqual(value, Convert.ToGuid(bytes));
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197
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198 bytes = new byte[] {210, 10, 31, 235, 140, 169, 84, 171, 0, 0, 0, 0, 0, 0, 0, 0};
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199 value = 12345678901234567890m;
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200 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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201 Assert.AreEqual(value, Convert.ToDecimal(bytes));
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202
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203 bytes = new byte[] {121, 233, 246, 66};
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204 value = 123.456f;
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205 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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206 Assert.AreEqual(value, Convert.ToSingle(bytes));
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207
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208 bytes = new byte[] {119, 190, 159, 26, 47, 221, 94, 64};
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209 value = 123.456;
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210 Assert.AreEqual(bytes, Convert.ToByteArray(value));
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211 Assert.AreEqual(value, Convert.ToDouble(bytes));
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212 }
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213
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214 [Test]
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215 public void ConvertT()
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216 {
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217 decimal d = ConvertTo<decimal>.From(123);
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218 Assert.AreEqual(123.0m, d);
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219 }
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220
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221 #if ORACLE
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222 [Test]
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223 public void TypeCast()
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224 {
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225 // Note that method BLToolkit.Common.Convert.ToDecimal(OracleNumber p) does not exist.
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226 //
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227 decimal d = ConvertTo<decimal>.From(new OracleDecimal(123));
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228 Assert.AreEqual(123.0m, d);
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229
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230 // Method BLToolkit.Common.Convert.ToOracleString(string p) does not exist too.
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231 //
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232 OracleString s = ConvertTo<OracleString>.From("test");
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233 Assert.AreEqual("test", s.Value);
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234 }
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235 #endif
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236 }
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237 }
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