/mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_OrElse.cs
https://bitbucket.org/steenlund/mono-2.6.7-for-amiga · C# · 359 lines · 279 code · 57 blank · 23 comment · 2 complexity · ab9c6ea6f7e471e0abb11c008a425eb5 MD5 · raw file
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the
- // "Software"), to deal in the Software without restriction, including
- // without limitation the rights to use, copy, modify, merge, publish,
- // distribute, sublicense, and/or sell copies of the Software, and to
- // permit persons to whom the Software is furnished to do so, subject to
- // the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- //
- // Authors:
- // Federico Di Gregorio <fog@initd.org>
- // Jb Evain <jbevain@novell.com>
- using System;
- using System.Reflection;
- using System.Linq;
- using System.Linq.Expressions;
- using NUnit.Framework;
- namespace MonoTests.System.Linq.Expressions
- {
- [TestFixture]
- public class ExpressionTest_OrElse
- {
- [Test]
- [ExpectedException (typeof (ArgumentNullException))]
- public void Arg1Null ()
- {
- Expression.OrElse (null, Expression.Constant (1));
- }
- [Test]
- [ExpectedException (typeof (ArgumentNullException))]
- public void Arg2Null ()
- {
- Expression.OrElse (Expression.Constant (1), null);
- }
- [Test]
- [ExpectedException (typeof (InvalidOperationException))]
- public void NoOperatorClass ()
- {
- Expression.OrElse (Expression.Constant (new NoOpClass ()), Expression.Constant (new NoOpClass ()));
- }
- [Test]
- [ExpectedException (typeof (InvalidOperationException))]
- public void Double ()
- {
- Expression.OrElse (Expression.Constant (1.0), Expression.Constant (2.0));
- }
- [Test]
- [ExpectedException (typeof (InvalidOperationException))]
- public void Integer ()
- {
- Expression.OrElse (Expression.Constant (1), Expression.Constant (2));
- }
- [Test]
- [ExpectedException (typeof (InvalidOperationException))]
- public void MismatchedTypes ()
- {
- Expression.OrElse (Expression.Constant (new OpClass ()), Expression.Constant (true));
- }
- [Test]
- public void Boolean ()
- {
- BinaryExpression expr = Expression.OrElse (Expression.Constant (true), Expression.Constant (false));
- Assert.AreEqual (ExpressionType.OrElse, expr.NodeType, "OrElse#01");
- Assert.AreEqual (typeof (bool), expr.Type, "OrElse#02");
- Assert.IsNull (expr.Method, "OrElse#03");
- Assert.AreEqual ("(True || False)", expr.ToString(), "OrElse#04");
- }
- [Test]
- public void UserDefinedClass ()
- {
- // We can use the simplest version of GetMethod because we already know only one
- // exists in the very simple class we're using for the tests.
- MethodInfo mi = typeof (OpClass).GetMethod ("op_BitwiseOr");
- BinaryExpression expr = Expression.OrElse (Expression.Constant (new OpClass ()), Expression.Constant (new OpClass ()));
- Assert.AreEqual (ExpressionType.OrElse, expr.NodeType, "OrElse#05");
- Assert.AreEqual (typeof (OpClass), expr.Type, "OrElse#06");
- Assert.AreEqual (mi, expr.Method, "OrElse#07");
- Assert.AreEqual ("op_BitwiseOr", expr.Method.Name, "OrElse#08");
- Assert.AreEqual ("(value(MonoTests.System.Linq.Expressions.OpClass) || value(MonoTests.System.Linq.Expressions.OpClass))",
- expr.ToString(), "OrElse#09");
- }
- public class BrokenMethod {
- public static int operator | (BrokenMethod a, BrokenMethod b)
- {
- return 1;
- }
- }
- public class BrokenMethod2 {
- public static BrokenMethod2 operator | (BrokenMethod2 a, int b)
- {
- return null;
- }
- }
- [Test]
- [ExpectedException(typeof(ArgumentException))]
- public void MethodInfoReturnType ()
- {
- Expression.OrElse (Expression.Constant (new BrokenMethod ()),
- Expression.Constant (new BrokenMethod ()));
- }
- [Test]
- [ExpectedException(typeof(ArgumentException))]
- public void MethodInfoReturnType2 ()
- {
- Expression.OrElse (Expression.Constant (new BrokenMethod2 ()),
- Expression.Constant (1));
- }
- [Test]
- public void OrElseNotLifted ()
- {
- var b = Expression.OrElse (
- Expression.Constant (true, typeof (bool)),
- Expression.Constant (true, typeof (bool)));
- Assert.AreEqual (typeof (bool), b.Type);
- Assert.IsFalse (b.IsLifted);
- Assert.IsFalse (b.IsLiftedToNull);
- }
- [Test]
- public void OrElseTest ()
- {
- var a = Expression.Parameter (typeof (bool), "a");
- var b = Expression.Parameter (typeof (bool), "b");
- var l = Expression.Lambda<Func<bool, bool, bool>> (
- Expression.OrElse (a, b), a, b);
- var be = l.Body as BinaryExpression;
- Assert.IsNotNull (be);
- Assert.AreEqual (typeof (bool), be.Type);
- Assert.IsFalse (be.IsLifted);
- Assert.IsFalse (be.IsLiftedToNull);
- var c = l.Compile ();
- Assert.AreEqual (true, c (true, true), "o1");
- Assert.AreEqual (true, c (true, false), "o2");
- Assert.AreEqual (true, c (false, true), "o3");
- Assert.AreEqual (false, c (false, false), "o4");
- }
- [Test]
- public void OrElseLifted ()
- {
- var b = Expression.OrElse (
- Expression.Constant (null, typeof (bool?)),
- Expression.Constant (null, typeof (bool?)));
- Assert.AreEqual (typeof (bool?), b.Type);
- Assert.IsTrue (b.IsLifted);
- Assert.IsTrue (b.IsLiftedToNull);
- }
- [Test]
- public void OrElseTestNullable ()
- {
- var a = Expression.Parameter (typeof (bool?), "a");
- var b = Expression.Parameter (typeof (bool?), "b");
- var l = Expression.Lambda<Func<bool?, bool?, bool?>> (
- Expression.OrElse (a, b), a, b);
- var be = l.Body as BinaryExpression;
- Assert.IsNotNull (be);
- Assert.AreEqual (typeof (bool?), be.Type);
- Assert.IsTrue (be.IsLifted);
- Assert.IsTrue (be.IsLiftedToNull);
- var c = l.Compile ();
- Assert.AreEqual (true, c (true, true), "o1");
- Assert.AreEqual (true, c (true, false), "o2");
- Assert.AreEqual (true, c (false, true), "o3");
- Assert.AreEqual (false, c (false, false), "o4");
- Assert.AreEqual (true, c (true, null), "o5");
- Assert.AreEqual (null, c (false, null), "o6");
- Assert.AreEqual (null, c (null, false), "o7");
- Assert.AreEqual (true, c (true, null), "o8");
- Assert.AreEqual (null, c (null, null), "o9");
- }
- [Test]
- public void OrElseBoolItem ()
- {
- var i = Expression.Parameter (typeof (Item<bool>), "i");
- var and = Expression.Lambda<Func<Item<bool>, bool>> (
- Expression.OrElse (
- Expression.Property (i, "Left"),
- Expression.Property (i, "Right")), i).Compile ();
- var item = new Item<bool> (true, false);
- Assert.AreEqual (true, and (item));
- Assert.IsTrue (item.LeftCalled);
- Assert.IsFalse (item.RightCalled);
- }
- [Test]
- public void OrElseNullableBoolItem ()
- {
- var i = Expression.Parameter (typeof (Item<bool?>), "i");
- var and = Expression.Lambda<Func<Item<bool?>, bool?>> (
- Expression.OrElse (
- Expression.Property (i, "Left"),
- Expression.Property (i, "Right")), i).Compile ();
- var item = new Item<bool?> (true, false);
- Assert.AreEqual ((bool?) true, and (item));
- Assert.IsTrue (item.LeftCalled);
- Assert.IsFalse (item.RightCalled);
- }
- struct Slot {
- public int Value;
- public Slot (int val)
- {
- this.Value = val;
- }
- public static Slot operator | (Slot a, Slot b)
- {
- return new Slot (a.Value | b.Value);
- }
- public static bool operator true (Slot a)
- {
- return a.Value != 0;
- }
- public static bool operator false (Slot a)
- {
- return a.Value == 0;
- }
- }
- [Test]
- public void UserDefinedOrElse ()
- {
- var l = Expression.Parameter (typeof (Slot), "l");
- var r = Expression.Parameter (typeof (Slot), "r");
- var method = typeof (Slot).GetMethod ("op_BitwiseOr");
- var node = Expression.OrElse (l, r, method);
- Assert.IsFalse (node.IsLifted);
- Assert.IsFalse (node.IsLiftedToNull);
- Assert.AreEqual (method, node.Method);
- var orelse = Expression.Lambda<Func<Slot, Slot, Slot>> (node, l, r).Compile ();
- Assert.AreEqual (new Slot (64), orelse (new Slot (64), new Slot (64)));
- Assert.AreEqual (new Slot (32), orelse (new Slot (32), new Slot (64)));
- }
- [Test]
- public void UserDefinedOrElseLiftedToNull ()
- {
- var l = Expression.Parameter (typeof (Slot?), "l");
- var r = Expression.Parameter (typeof (Slot?), "r");
- var method = typeof (Slot).GetMethod ("op_BitwiseOr");
- var node = Expression.OrElse (l, r, method);
- Assert.IsTrue (node.IsLifted);
- Assert.IsTrue (node.IsLiftedToNull);
- Assert.AreEqual (method, node.Method);
- var orelse = Expression.Lambda<Func<Slot?, Slot?, Slot?>> (node, l, r).Compile ();
- Assert.AreEqual (new Slot (64), orelse (new Slot (64), new Slot (64)));
- Assert.AreEqual (new Slot (32), orelse (new Slot (32), new Slot (64)));
- Assert.AreEqual (new Slot (64), orelse (null, new Slot (64)));
- Assert.AreEqual (new Slot (32), orelse (new Slot (32), null));
- Assert.AreEqual (null, orelse (null, null));
- }
- [Test]
- public void UserDefinedOrElseShortCircuit ()
- {
- var i = Expression.Parameter (typeof (Item<Slot>), "i");
- var orelse = Expression.Lambda<Func<Item<Slot>, Slot>> (
- Expression.OrElse (
- Expression.Property (i, "Left"),
- Expression.Property (i, "Right")), i).Compile ();
- var item = new Item<Slot> (new Slot (1), new Slot (0));
- Assert.AreEqual (new Slot (1), orelse (item));
- Assert.IsTrue (item.LeftCalled);
- Assert.IsFalse (item.RightCalled);
- }
- [Test]
- [Category ("NotDotNet")] // https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=350228
- public void UserDefinedLiftedOrElseShortCircuit ()
- {
- var i = Expression.Parameter (typeof (Item<Slot?>), "i");
- var orelse = Expression.Lambda<Func<Item<Slot?>, Slot?>> (
- Expression.OrElse (
- Expression.Property (i, "Left"),
- Expression.Property (i, "Right")), i).Compile ();
- var item = new Item<Slot?> (new Slot (1), null);
- Assert.AreEqual ((Slot?) new Slot (1), orelse (item));
- Assert.IsTrue (item.LeftCalled);
- Assert.IsFalse (item.RightCalled);
- }
- struct Incomplete {
- public int Value;
- public Incomplete (int val)
- {
- Value = val;
- }
- public static Incomplete operator | (Incomplete a, Incomplete b)
- {
- return new Incomplete (a.Value | b.Value);
- }
- }
- [Test]
- [ExpectedException (typeof (ArgumentException))]
- public void IncompleteUserDefinedOrElse ()
- {
- var l = Expression.Parameter (typeof (Incomplete), "l");
- var r = Expression.Parameter (typeof (Incomplete), "r");
- var method = typeof (Incomplete).GetMethod ("op_BitwiseOr");
- Expression.OrElse (l, r, method);
- }
- }
- }