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// 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.
// Ad
// 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>
// Miguel de Icaza <miguel@novell.com>
using System;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;
using NUnit.Framework;
namespace MonoTests.System.Linq.Expressions
{
[TestFixture]
[Category("SRE")]
public class ExpressionTest_Power
{
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Arg1Null ()
{
Expression.Power (null, Expression.Constant (1.0));
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Arg2Null ()
{
Expression.Power (Expression.Constant (1.0), null);
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void ArgTypesDifferent ()
{
Expression.Power (Expression.Constant (1), Expression.Constant (2.0));
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void ArgTypesInt ()
{
Expression.Power (Expression.Constant (1), Expression.Constant (2));
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void ArgTypesFloat ()
{
Expression.Power (Expression.Constant ((float)1), Expression.Constant ((float)2));
}
[Test]
public void ArgTypesDouble ()
{
var p = Expression.Power (Expression.Constant (1.0), Expression.Constant (2.0));
Assert.AreEqual (ExpressionType.Power, p.NodeType, "Power#01");
Assert.AreEqual (typeof (double), p.Type, "Add#02");
Assert.AreEqual ("(1 ** 2)", p.ToString ());
}
[Test]
public void TestCompile ()
{
var a = Expression.Parameter (typeof (double), "a");
var b = Expression.Parameter (typeof (double), "b");
var power = Expression.Lambda<Func<double,double,double>> (
Expression.Power (a, b), a, b).Compile ();
Assert.AreEqual (1, power (1, 10));
Assert.AreEqual (16, power (2, 4));
}
[Test]
public void NullablePower ()
{
var a = Expression.Parameter (typeof (double?), "a");
var b = Expression.Parameter (typeof (double?), "b");
var power = Expression.Lambda<Func<double?, double?, double?>> (
Expression.Power (a, b), a, b).Compile ();
Assert.AreEqual ((double?) 1, power (1, 10));
Assert.AreEqual ((double?) 16, power (2, 4));
Assert.AreEqual ((double?) null, power (1, null));
Assert.AreEqual ((double?) null, power (null, 1));
Assert.AreEqual ((double?) null, power (null, null));
}
}
}
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