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1 using System;
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2 using System.Collections.Generic;
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3 using System.Linq;
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4 using System.Windows.Forms;
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5 using BLToolkit.DataAccess;
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6 using BLToolkit.Reflection;
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7 using NUnit.Framework;
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8
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9 using BLToolkit.Data;
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10 using BLToolkit.Data.DataProvider;
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11 using BLToolkit.Data.Linq;
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12 using BLToolkit.Mapping;
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13
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14 namespace Data.Linq
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15 {
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16 using Model;
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17
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18 [TestFixture]
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19 public class SelectTest : TestBase
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20 {
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21 [Test]
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22 public void SimpleDirect()
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23 {
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24 TestJohn(db => db.Person);
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25 }
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26
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27 [Test]
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28 public void Simple()
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29 {
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30 TestJohn(db => from p in db.Person select p);
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31 }
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32
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33 [Test]
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34 public void SimpleDouble()
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35 {
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36 TestJohn(db => db.Person.Select(p => p).Select(p => p));
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37 }
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38
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39 [Test]
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40 public void New()
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41 {
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42 var expected = from p in Person select new { p.ID, p.FirstName };
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43
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44 ForEachProvider(db =>
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45 {
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46 var result = from p in db.Person select new { p.ID, p.FirstName };
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47 Assert.IsTrue(result.ToList().SequenceEqual(expected));
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48 });
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49 }
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50
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51 void NewParam(IQueryable<Person> table, int i)
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52 {
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53 var expected = from p in Person select new { i, p.ID, p.FirstName };
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54 var result = from p in table select new { i, p.ID, p.FirstName };
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55
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56 Assert.IsTrue(result.ToList().SequenceEqual(expected));
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57 }
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58
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59 [Test]
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60 public void NewParam()
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61 {
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62 ForEachProvider(db => { for (int i = 0; i < 5; i++) NewParam(db.Person, i); });
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63 }
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64
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65 [Test]
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66 public void InitObject()
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67 {
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68 TestJohn(db => from p in db.Person select new Person { ID = p.ID, FirstName = p.FirstName });
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69 }
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70
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71 [Test]
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72 public void NewObject()
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73 {
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74 TestJohn(db => from p in db.Person select new Person(p.ID, p.FirstName));
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75 }
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76
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77 [Test]
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78 public void NewInitObject()
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79 {
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80 TestJohn(db => from p in db.Person select new Person(p.ID) { FirstName = p.FirstName });
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81 }
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82
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83 [Test]
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84 public void NewWithExpr()
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85 {
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86 TestPerson(1, "John1", db => from p in db.Person select new Person(p.ID) { FirstName = (p.FirstName + "1\r\r\r").TrimEnd('\r') });
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87 }
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88
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89 [Test]
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90 public void MultipleSelect1()
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91 {
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92 TestJohn(db => db.Person
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93 .Select(p => new { PersonID = p.ID, Name = p.FirstName })
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94 .Select(p => new Person(p.PersonID) { FirstName = p.Name }));
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95 }
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96
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97 [Test]
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98 public void MultipleSelect2()
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99 {
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100 TestJohn(db =>
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101 from p in db.Person
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102 select new { PersonID = p.ID, Name = p.FirstName } into pp
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103 select new Person(pp.PersonID) { FirstName = pp.Name });
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104 }
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105
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106 [Test]
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107 public void MultipleSelect3()
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108 {
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109 TestJohn(db => db.Person
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110 .Select(p => new { PersonID = p.ID, Name = p.FirstName })
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111 .Select(p => new Person { ID = p.PersonID, FirstName = p.Name })
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112 .Select(p => new { PersonID = p.ID, Name = p.FirstName })
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113 .Select(p => new Person { ID = p.PersonID, FirstName = p.Name }));
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114 }
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115
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116 [Test]
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117 public void MultipleSelect4()
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118 {
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119 TestJohn(db => db.Person
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120 .Select(p1 => new { p1 })
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121 .Select(p2 => new { p2 })
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122 .Select(p3 => new Person { ID = p3.p2.p1.ID, FirstName = p3.p2.p1.FirstName }));
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123 }
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124
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125 [Test]
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126 public void MultipleSelect5()
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127 {
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128 TestJohn(db => db.Person
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129 .Select(p1 => new { p1 })
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130 .Select(p2 => new Person { ID = p2.p1.ID, FirstName = p2.p1.FirstName })
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131 .Select(p3 => new { p3 })
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132 .Select(p4 => new Person { ID = p4.p3.ID, FirstName = p4.p3.FirstName }));
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133 }
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134
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135 [Test]
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136 public void MultipleSelect6()
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137 {
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138 TestJohn(db => db.Person
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139 .Select(p1 => new { p1 })
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140 .Select(p2 => new Person { ID = p2.p1.ID, FirstName = p2.p1.FirstName })
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141 .Select(p3 => p3)
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142 .Select(p4 => new Person { ID = p4.ID, FirstName = p4.FirstName }));
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143 }
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144
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145 [Test]
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146 public void MultipleSelect7()
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147 {
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148 TestJohn(db => db.Person
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149 .Select(p1 => new { ID = p1.ID + 1, p1.FirstName })
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150 .Select(p2 => new Person { ID = p2.ID - 1, FirstName = p2.FirstName }));
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151 }
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152
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153 [Test]
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154 public void MultipleSelect8()
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155 {
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156 ForEachProvider(db =>
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157 {
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158 var person = (
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159
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160 db.Person
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161 .Select(p1 => new Person { ID = p1.ID * 2, FirstName = p1.FirstName })
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162 .Select(p2 => new { ID = p2.ID / "22".Length, p2.FirstName })
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163
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164 ).ToList().Where(p => p.ID == 1).First();
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165 Assert.AreEqual(1, person.ID);
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166 Assert.AreEqual("John", person.FirstName);
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167 });
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168 }
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169
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170 [Test]
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171 public void MultipleSelect9()
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172 {
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173 TestJohn(db => db.Person
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174 .Select(p1 => new { ID = p1.ID - 1, p1.FirstName })
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175 .Select(p2 => new Person { ID = p2.ID + 1, FirstName = p2.FirstName })
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176 .Select(p3 => p3)
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177 .Select(p4 => new { ID = p4.ID * "22".Length, p4.FirstName })
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178 .Select(p5 => new Person { ID = p5.ID / 2, FirstName = p5.FirstName }));
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179 }
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180
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181 [Test]
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182 public void MultipleSelect10()
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183 {
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184 TestJohn(db => db.Person
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185 .Select(p1 => new { p1.ID, p1 })
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186 .Select(p2 => new { p2.ID, p2.p1, p2 })
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187 .Select(p3 => new { p3.ID, p3.p1.FirstName, p11 = p3.p2.p1, p3 })
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188 .Select(p4 => new Person { ID = p4.p11.ID, FirstName = p4.p3.p1.FirstName }));
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189 }
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190
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191 [Test]
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192 public void Coalesce()
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193 {
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194 ForEachProvider(db =>
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195 {
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196 var q = (
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197
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198 from p in db.Person
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199 where p.ID == 1
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200 select new
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201 {
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202 p.ID,
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203 FirstName = p.FirstName ?? "None",
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204 MiddleName = p.MiddleName ?? "None"
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205 }
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206
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207 ).ToList().First();
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208
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209 Assert.AreEqual(1, q.ID);
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210 Assert.AreEqual("John", q.FirstName);
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211 Assert.AreEqual("None", q.MiddleName);
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212 });
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213 }
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214
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215 [Test]
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216 public void Coalesce2()
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217 {
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218 ForEachProvider(db =>
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219 {
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220 var q = (
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221
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222 from p in db.Person
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223 where p.ID == 1
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224 select new
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225 {
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226 p.ID,
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227 FirstName = p.MiddleName ?? p.FirstName ?? "None",
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228 LastName = p.LastName ?? p.FirstName ?? "None",
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229 MiddleName = p.MiddleName ?? p.MiddleName ?? "None"
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230 }
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231
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232 ).ToList().First();
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233
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234 Assert.AreEqual(1, q.ID);
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235 Assert.AreEqual("John", q.FirstName);
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236 Assert.AreEqual("Pupkin", q.LastName);
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237 Assert.AreEqual("None", q.MiddleName);
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238 });
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239 }
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240
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241 class MyMapSchema : MappingSchema
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242 {
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243 public override void InitNullValues()
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244 {
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245 base.InitNullValues();
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246 DefaultStringNullValue = null;
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247 }
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248 }
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249
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250 static readonly MyMapSchema _myMapSchema = new MyMapSchema();
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251
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252 [Test]
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253 public void Coalesce3()
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254 {
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255 ForEachProvider(db =>
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256 {
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257 if (db is DbManager)
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258 {
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259 ((DbManager)db).MappingSchema = _myMapSchema;
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260
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261 var q = (
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262
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263 from p in db.Person
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264 where p.ID == 1
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265 select new
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266 {
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267 p.ID,
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268 FirstName = p.MiddleName ?? p.FirstName ?? "None",
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269 LastName = p.LastName ?? p.FirstName ?? "None",
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270 MiddleName = p.MiddleName ?? p.MiddleName ?? "None"
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271 }
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272
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273 ).ToList().First();
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274
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275 Assert.AreEqual(1, q.ID);
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276 Assert.AreEqual("John", q.FirstName);
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277 Assert.AreEqual("Pupkin", q.LastName);
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278 Assert.AreEqual("None", q.MiddleName);
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279 }
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280 });
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281 }
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282
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283 [Test]
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284 public void Coalesce4()
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285 {
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286 ForEachProvider(new[] { ProviderName.SqlCe }, db => AreEqual(
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287 from c in Child
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288 select Sql.AsSql((from ch in Child where ch.ChildID == c.ChildID select ch.Parent.Value1).FirstOrDefault() ?? c.ChildID),
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289 from c in db.Child
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290 select Sql.AsSql((from ch in db.Child where ch.ChildID == c.ChildID select ch.Parent.Value1).FirstOrDefault() ?? c.ChildID)));
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291 }
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292
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293 [Test]
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294 public void Coalesce5()
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295 {
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296 ForEachProvider(new[] { ProviderName.SqlCe }, db => AreEqual(
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297 from p in Parent select Sql.AsSql(p.Children.Max(c => (int?)c.ChildID) ?? p.Value1),
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298 from p in db.Parent select Sql.AsSql(p.Children.Max(c => (int?)c.ChildID) ?? p.Value1)));
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299 }
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300
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301 [Test]
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302 public void Concatenation()
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303 {
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304 ForEachProvider(db =>
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305 {
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306 var q = from p in db.Person where p.ID == 1 select new { p.ID, FirstName = "123" + p.FirstName + "456" };
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307 var f = q.Where(p => p.FirstName == "123John456").ToList().First();
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308 Assert.AreEqual(1, f.ID);
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309 });
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310 }
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311
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312 IEnumerable<int> GetList(int i)
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313 {
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314 yield return i;
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315 }
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316
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317 [Test]
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318 public void SelectEnumerable()
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319 {
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320 ForEachProvider(db => AreEqual(
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321 from p in Parent select new { Max = GetList(p.ParentID).Max() },
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322 from p in db.Parent select new { Max = GetList(p.ParentID).Max() }));
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323 }
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324
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325 [Test]
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326 public void ConstractClass()
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327 {
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328 ForEachProvider(db =>
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329 db.Parent.Select(f =>
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330 new ListViewItem(new[] { "", f.ParentID.ToString(), f.Value1.ToString() })
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331 {
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332 Checked = true,
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333 ImageIndex = 0,
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334 Tag = f.ParentID
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335 }).ToList());
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336 }
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337
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338 static string ConvertString(string s, int? i, bool b, int n)
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339 {
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340 return s + "." + i + "." + b + "." + n;
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341 }
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342
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343 [Test]
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344 public void Index()
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345 {
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346 ForEachProvider(db =>
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347 {
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348 var q =
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349 db.Child
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350 .OrderByDescending(m => m.ChildID)
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351 .Where(m => m.Parent != null && m.ParentID > 0);
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352
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353 var lines =
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354 q.Select(
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355 (m, i) =>
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356 ConvertString(m.Parent.ParentID.ToString(), m.ChildID, i % 2 == 0, i)).ToArray();
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357
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358 Assert.AreEqual("7.77.True.0", lines[0]);
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359 });
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360 }
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361
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362 [Test]
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363 public void InterfaceTest()
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364 {
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365 ForEachProvider(db =>
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366 {
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367 var q = from p in db.Parent2 select new { p.ParentID, p.Value1 };
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368 q.ToList();
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369 });
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370 }
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371
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372 [Test]
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373 public void ProjectionTest1()
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374 {
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375 ForEachProvider(db => AreEqual(
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376 from c in Child select new { c.ChildID, ID = 0, ID1 = c.ParentID2.ParentID2, c.ParentID2.Value1, ID2 = c.ParentID },
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377 from c in db.Child select new { c.ChildID, ID = 0, ID1 = c.ParentID2.ParentID2, c.ParentID2.Value1, ID2 = c.ParentID }));
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378 }
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379
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380 <<<<<<< HEAD
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381 [TableName("Person")]
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382 [ObjectFactory(typeof(TestPersonObject.Factory))]
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383 public class TestPersonObject
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384 {
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385 public class Factory : IObjectFactory
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386 {
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387 #region IObjectFactory Members
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388
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389 public object CreateInstance(TypeAccessor typeAccessor, InitContext context)
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390 {
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391 if (context == null)
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392 throw new Exception("InitContext is null while mapping from DataReader!");
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393
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394 return typeAccessor.CreateInstance();
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395 }
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396
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397 #endregion
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398 }
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399 public int PersonID;
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400 public string FirstName;
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401 }
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402
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403 [Test]
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404 public void ObjectFactoryTest()
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405 {
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406 ForEachProvider(db =>
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407 db.GetTable<TestPersonObject>().ToList());
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408 =======
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409 [Test]
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410 public void ProjectionTest2()
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411 {
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412 ForEachProvider(db => AreEqual(
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413 from p in Person select p.Patient,
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414 from p in db.Person select p.Patient));
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415 }
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416
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417 [Test]
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418 public void EqualTest1()
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419 {
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420 ForEachProvider(db =>
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421 {
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422 var q = (from p in db.Parent select new { p1 = p, p2 = p }).First();
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423 Assert.AreSame(q.p1, q.p2);
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424 });
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425 >>>>>>> 5ec55e61b6c00e47619c1399483bd531f161f93a
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426 }
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427 }
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428 }
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