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/mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_Quote.cs

https://bitbucket.org/steenlund/mono-2.6.7-for-amiga
C# | 79 lines | 47 code | 11 blank | 21 comment | 0 complexity | 39bf1ff69b2f914abb7f349d65e98c91 MD5 | raw file
Possible License(s): LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0, LGPL-2.1
  1. // Permission is hereby granted, free of charge, to any person obtaining
  2. // a copy of this software and associated documentation files (the
  3. // "Software"), to deal in the Software without restriction, including
  4. // without limitation the rights to use, copy, modify, merge, publish,
  5. // distribute, sublicense, and/or sell copies of the Software, and to
  6. // permit persons to whom the Software is furnished to do so, subject to
  7. // the following conditions:
  8. //
  9. // The above copyright notice and this permission notice shall be
  10. // included in all copies or substantial portions of the Software.
  11. //
  12. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13. // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14. // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15. // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16. // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17. // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18. //
  19. // Authors:
  20. // Federico Di Gregorio <fog@initd.org>
  21. using System;
  22. using System.Reflection;
  23. using System.Linq;
  24. using System.Linq.Expressions;
  25. using NUnit.Framework;
  26. namespace MonoTests.System.Linq.Expressions
  27. {
  28. [TestFixture]
  29. public class ExpressionTest_Quote
  30. {
  31. [Test]
  32. [ExpectedException (typeof (ArgumentNullException))]
  33. public void Arg1Null ()
  34. {
  35. Expression.Quote (null);
  36. }
  37. [Test]
  38. public void Constant ()
  39. {
  40. UnaryExpression expr = Expression.Quote (Expression.Constant (1));
  41. Assert.AreEqual (ExpressionType.Quote, expr.NodeType, "Quote#01");
  42. Assert.AreEqual (typeof (ConstantExpression), expr.Type, "Quote#02");
  43. Assert.AreEqual ("1", expr.ToString(), "Quote#03");
  44. }
  45. [Test]
  46. public void CompiledQuote ()
  47. {
  48. var quote42 = Expression.Lambda<Func<Expression<Func<int>>>> (
  49. Expression.Quote (
  50. Expression.Lambda<Func<int>> (
  51. 42.ToConstant ()))).Compile ();
  52. var get42 = quote42 ().Compile ();
  53. Assert.AreEqual (42, get42 ());
  54. }
  55. [Test]
  56. public void ParameterInQuotedExpression () // #550722
  57. {
  58. // Expression<Func<string, Expression<Func<string>>>> e = (string s) => () => s;
  59. var s = Expression.Parameter (typeof (string), "s");
  60. var lambda = Expression.Lambda<Func<string, Expression<Func<string>>>> (
  61. Expression.Quote (
  62. Expression.Lambda<Func<string>> (s, new ParameterExpression [0])),
  63. s);
  64. var fs = lambda.Compile () ("bingo").Compile ();
  65. Assert.AreEqual ("bingo", fs ());
  66. }
  67. }
  68. }