public void Equals()
{
CallExpression expr1 = new CallExpression("puts", new IExpression[] { new ConstantExpression(1) });
CallExpression expr2 = new CallExpression("put", new IExpression[] { new ConstantExpression(1) });
CallExpression expr3 = new CallExpression("puts", new IExpression[] { new ConstantExpression(2) });
CallExpression expr4 = new CallExpression("puts", new IExpression[] { new ConstantExpression(2), new ConstantExpression(3) });
CallExpression expr5 = new CallExpression("puts", new IExpression[] { new ConstantExpression(1) });
Assert.IsTrue(expr1.Equals(expr5));
Assert.IsTrue(expr5.Equals(expr1));
Assert.AreEqual(expr1.GetHashCode(), expr5.GetHashCode());
Assert.IsFalse(expr1.Equals(null));
Assert.IsFalse(expr1.Equals(123));
Assert.IsFalse(expr1.Equals(expr2));
Assert.IsFalse(expr2.Equals(expr1));
Assert.IsFalse(expr1.Equals(expr3));
Assert.IsFalse(expr3.Equals(expr1));
Assert.IsFalse(expr1.Equals(expr4));
Assert.IsFalse(expr4.Equals(expr1));
}