5 // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne
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7 // Permission is hereby granted, free of charge, to any person obtaining a copy
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8 // of this software and associated documentation files (the "Software"), to deal
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9 // in the Software without restriction, including without limitation the rights
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10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 // copies of the Software, and to permit persons to whom the Software is
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12 // furnished to do so, subject to the following conditions:
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14 // The above copyright notice and this permission notice shall be included in
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15 // all copies or substantial portions of the Software.
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17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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27 using System.Collections.Generic;
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28 using System.Data.Linq;
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31 using System.Linq.Expressions;
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32 using NUnit.Framework;
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38 using Id = System.Decimal;
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40 using Id = System.Int32;
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45 namespace Test_NUnit_MySql
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47 namespace Test_NUnit_OracleODP
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49 namespace Test_NUnit_Oracle
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51 namespace Test_NUnit_PostgreSql
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53 namespace Test_NUnit_Sqlite
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55 namespace Test_NUnit_Ingres
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56 #elif MSSQL && MONO_STRICT
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57 namespace Test_NUnit_MsSql_Strict
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59 namespace Test_NUnit_MsSql
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61 namespace Test_NUnit_Firebird
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65 public class ReadTest_Subquery : TestBase
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67 [Description("Simple projection")]
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69 public void CQ1_SimpleProjection()
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71 var db = CreateDB();
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72 var q = db.Employees.Select(e => e.LastName);
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73 var count = q.ToList().Count;
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74 Assert.IsTrue(count > 0);
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78 Generated SQL should look like
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80 FROM Employees AS e$
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81 LEFT OUTER JOIN Orders AS o$ ON o$.[EmployeeID] = e$.[EmployeeID]
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83 [Description("Subquery")]
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85 public void CQ2_Subquery()
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87 var db = CreateDB();
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88 var q = db.Employees.Select(e => e.Orders);
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90 var count = l.Count;
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91 Assert.IsTrue(count > 0);
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94 [Description("Subquery with nested select")]
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96 public void CQ3_SubquerySelect()
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98 var db = CreateDB();
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99 var q = db.Employees.Select(e => e.Orders.Select(o => o));
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100 var count = q.ToList().Count;
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101 Assert.IsTrue(count > 0);
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104 [Description("Subquery with nested entityset")]
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106 public void CQ4_SubqueryNested()
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108 var db = CreateDB();
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109 var q = db.Employees.Select(e => e.Orders.Select(o => o.OrderDetails));
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110 var count = q.ToList().Count;
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111 Assert.IsTrue(count > 0);
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114 [Description("Subquery with nested query")]
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116 public void CQ5_SubqueryNestedQuery()
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118 var db = CreateDB();
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119 var q = from d in db.Orders
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120 where (from r in db.OrderDetails
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121 where r.ProductID == 1
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123 r.OrderID).Contains(d.OrderID)
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125 var count = q.ToList().Count;
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126 Assert.AreEqual(count,1 );
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