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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.
//
// 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>
using System;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;
using NUnit.Framework;
namespace MonoTests.System.Linq.Expressions
{
[TestFixture]
public class ExpressionTest_Modulo
{
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Arg1Null ()
{
Expression.Modulo (null, Expression.Constant (1));
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Arg2Null ()
{
Expression.Modulo (Expression.Constant (1), null);
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void ArgTypesDifferent ()
{
Expression.Modulo (Expression.Constant (1), Expression.Constant (2.0));
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void NoOperatorClass ()
{
Expression.Modulo (Expression.Constant (new NoOpClass ()), Expression.Constant (new NoOpClass ()));
}
[Test]
[ExpectedException (typeof (InvalidOperationException))]
public void Boolean ()
{
Expression.Modulo (Expression.Constant (true), Expression.Constant (false));
}
[Test]
public void Double ()
{
BinaryExpression expr = Expression.Modulo (Expression.Constant (1.0), Expression.Constant (2.0));
Assert.AreEqual (ExpressionType.Modulo, expr.NodeType, "Modulo#14");
Assert.AreEqual (typeof (double), expr.Type, "Modulo#15");
Assert.IsNull (expr.Method, "Modulo#16");
Assert.AreEqual ("(1 % 2)", expr.ToString(), "Modulo#17");
}
[Test]
public void Numeric ()
{
BinaryExpression expr = Expression.Modulo (Expression.Constant (1), Expression.Constant (2));
Assert.AreEqual (ExpressionType.Modulo, expr.NodeType, "Modulo#01");
Assert.AreEqual (typeof (int), expr.Type, "Modulo#02");
Assert.IsNull (expr.Method, "Modulo#03");
Assert.AreEqual ("(1 % 2)", expr.ToString(), "Modulo#04");
}
[Test]
public void Nullable ()
{
int? a = 1;
int? b = 2;
BinaryExpression expr = Expression.Modulo (Expression.Constant (a), Expression.Constant (b));
Assert.AreEqual (ExpressionType.Modulo, expr.NodeType, "Modulo#05");
Assert.AreEqual (typeof (int), expr.Type, "Modulo#06");
Assert.IsNull (expr.Method, "Modulo#07");
Assert.AreEqual ("(1 % 2)", expr.ToString(), "Modulo#08");
}
[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_Modulus");
BinaryExpression expr = Expression.Modulo (Expression.Constant (new OpClass ()), Expression.Constant (new OpClass ()));
Assert.AreEqual (ExpressionType.Modulo, expr.NodeType, "Modulo#09");
Assert.AreEqual (typeof (OpClass), expr.Type, "Modulo#10");
Assert.AreEqual (mi, expr.Method, "Modulo#11");
Assert.AreEqual ("op_Modulus", expr.Method.Name, "Modulo#12");
Assert.AreEqual ("(value(MonoTests.System.Linq.Expressions.OpClass) % value(MonoTests.System.Linq.Expressions.OpClass))",
expr.ToString(), "Modulo#13");
}
[Test]
public void CompiledModulo ()
{
var l = Expression.Parameter (typeof (double), "l");
var p = Expression.Parameter (typeof (double), "r");
var modulo = Expression.Lambda<Func<double, double, double>> (
Expression.Modulo (l, p), l, p).Compile ();
Assert.AreEqual (0, modulo (4.0, 2.0));
Assert.AreEqual (2.0, modulo (5.0, 3.0));
}
}
}
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