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/**
* Copyright (c) David Miller. All rights reserved.
* The use and distribution terms for this software are covered by the
* Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
* which can be found in the file epl-v10.html at the root of this distribution.
* By using this software in any fashion, you are agreeing to be bound by
* the terms of this license.
* You must not remove this notice, or any other, from this software.
**/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NUnit.Framework;
using Rhino.Mocks;
using clojure.lang;
using RMExpect = Rhino.Mocks.Expect;
namespace Clojure.Tests.LibTests
{
[TestFixture]
public class PersistentListTests : AssertionHelper
{
#region C-tor tests
[Test]
public void OneArgCtorConstructsListOfOneElement()
{
PersistentList p = new PersistentList("abc");
Expect(p.first(), EqualTo("abc"));
Expect(p.next(), Null);
Expect(p.count(), EqualTo(1));
}
[Test]
public void ListCtorConstructsListOfSeveralElements()
{
object[] items = new object[] { 1, "abc", 2, "def" };
IPersistentList p = PersistentList.create(items);
Expect(p.count(), EqualTo(4));
ISeq s = p.seq();
Expect(s.first(), EqualTo(1));
Expect(s.next().first(), EqualTo("abc"));
Expect(s.next().next().first(), EqualTo(2));
Expect(s.next().next().next().first(), EqualTo("def"));
Expect(s.next().next().next().next(), Null);
}
#endregion
#region IPersistentStack tests
[Test]
public void PeekYieldsFirstElementAndListUnchanged()
{
PersistentList p = (PersistentList)PersistentList.create(new object[] { "abc", 1, "def" });
Expect(p.peek(), EqualTo("abc"));
Expect(p.count(), EqualTo(3));
}
[Test]
public void PopLosesfirstElement()
{
PersistentList p = (PersistentList)PersistentList.create(new object[]{"abc", 1, "def"});
PersistentList p2 = (PersistentList)p.pop();
Expect(p2.count(), EqualTo(2));
Expect(p2.peek(), EqualTo(1));
}
[Test]
public void PopOnSingletonListYieldsEmptyList()
{
PersistentList p = new PersistentList("abc");
IPersistentStack s = p.pop();
Expect(s.count(), EqualTo(0));
}
[Test]
[ExpectedException(typeof(InvalidOperationException))]
public void DoublePopOnSingletonListYieldsException()
{
PersistentList p = new PersistentList("abc");
IPersistentStack s = p.pop().pop();
}
#endregion
#region IPersistentCollection tests
[Test]
public void EmptyHasNoElements()
{
PersistentList p = new PersistentList("abc");
IPersistentCollection c = p.empty();
Expect(c.count(), EqualTo(0));
}
[Test]
public void EmptyPreservesMeta()
{
MockRepository mocks = new MockRepository();
IPersistentMap meta = mocks.StrictMock<IPersistentMap>();
mocks.ReplayAll();
IPersistentCollection p = (IPersistentCollection)new PersistentList("abc").withMeta(meta);
IObj obj = (IObj) p.empty();
Expect(obj.meta(), SameAs(meta));
mocks.VerifyAll();
}
#endregion
#region IReduce tests
[Test]
public void ReduceWithNoStartIterates()
{
MockRepository mocks = new MockRepository();
IFn fn = mocks.StrictMock<IFn>();
RMExpect.Call(fn.invoke(1, 2)).Return(5);
RMExpect.Call(fn.invoke(5, 3)).Return(7);
mocks.ReplayAll();
PersistentList p = (PersistentList)PersistentList.create(new object[] { 1, 2, 3 });
object ret = p.reduce(fn);
Expect(ret, EqualTo(7));
mocks.VerifyAll();
}
[Test]
public void ReduceWithStartIterates()
{
MockRepository mocks = new MockRepository();
IFn fn = mocks.StrictMock<IFn>();
RMExpect.Call(fn.invoke(20, 1)).Return(10);
RMExpect.Call(fn.invoke(10, 2)).Return(5);
RMExpect.Call(fn.invoke(5, 3)).Return(7);
mocks.ReplayAll();
PersistentList p = (PersistentList)PersistentList.create(new object[] { 1, 2, 3 });
object ret = p.reduce(fn, 20);
Expect(ret, EqualTo(7));
mocks.VerifyAll();
}
#endregion
}
[TestFixture]
public class PersistentList_ISeq_Tests : ISeqTestHelper
{
PersistentList _pl;
PersistentList _plWithMeta;
object[] _values;
[SetUp]
public void Setup()
{
PersistentList p1 = new PersistentList("abc");
PersistentList p2 = (PersistentList)p1.cons("def");
_pl = (PersistentList)p2.cons(7);
_values = new object[] { 7, "def", "abc" };
_plWithMeta = (PersistentList)_pl.withMeta(PersistentHashMap.create("a", 1));
}
[Test]
public void ISeq_has_correct_valuess()
{
VerifyISeqContents(_pl, _values);
}
[Test]
public void ISeq_with_meta_has_correct_valuess()
{
VerifyISeqContents(_plWithMeta, _values);
}
[Test]
public void Rest_has_correct_type()
{
VerifyISeqRestTypes(_pl, typeof(PersistentList));
}
[Test]
public void Cons_works()
{
VerifyISeqCons(_pl, "pqr", _values);
}
[Test]
public void ConsPreservesMeta()
{
PersistentList p2 = (PersistentList)_plWithMeta.cons("def");
Expect(p2.meta(), SameAs(_plWithMeta.meta()));
}
}
[TestFixture]
public class PersistentList_IObj_Tests : IObjTests
{
MockRepository _mocks;
[SetUp]
public void Setup()
{
_mocks = new MockRepository();
IPersistentMap meta = _mocks.StrictMock<IPersistentMap>();
_mocks.ReplayAll();
PersistentList p1 = (PersistentList)PersistentList.create(new object[] { "abc", "def" });
_objWithNullMeta = (IObj)p1;
_obj = _objWithNullMeta.withMeta(meta);
_expectedType = typeof(PersistentList);
}
[TearDown]
public void Teardown()
{
_mocks.VerifyAll();
}
}
}
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