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using System;
using System.Collections.Generic;
using Google.Protobuf.TestProtos;
using NUnit.Framework;
namespace Google.Protobuf.Collections
{
public class RepeatedFieldTest
{
[Test]
public void NullValuesRejected()
{
var list = new RepeatedField<string>();
Assert.Throws<ArgumentNullException>(() => list.Add((string)null));
Assert.Throws<ArgumentNullException>(() => list.Add((IEnumerable<string>)null));
Assert.Throws<ArgumentNullException>(() => list.Add((RepeatedField<string>)null));
Assert.Throws<ArgumentNullException>(() => list.Contains(null));
Assert.Throws<ArgumentNullException>(() => list.IndexOf(null));
}
[Test]
public void Add_SingleItem()
{
var list = new RepeatedField<string>();
list.Add("foo");
Assert.AreEqual(1, list.Count);
Assert.AreEqual("foo", list[0]);
}
[Test]
public void Add_Sequence()
{
var list = new RepeatedField<string>();
list.Add(new[] { "foo", "bar" });
Assert.AreEqual(2, list.Count);
Assert.AreEqual("foo", list[0]);
Assert.AreEqual("bar", list[1]);
}
[Test]
public void Add_RepeatedField()
{
var list = new RepeatedField<string> { "original" };
list.Add(new RepeatedField<string> { "foo", "bar" });
Assert.AreEqual(3, list.Count);
Assert.AreEqual("original", list[0]);
Assert.AreEqual("foo", list[1]);
Assert.AreEqual("bar", list[2]);
}
[Test]
public void Freeze_FreezesElements()
{
var list = new RepeatedField<TestAllTypes> { new TestAllTypes() };
Assert.IsFalse(list[0].IsFrozen);
list.Freeze();
Assert.IsTrue(list[0].IsFrozen);
}
[Test]
public void Freeze_PreventsMutations()
{
var list = new RepeatedField<int> { 0 };
list.Freeze();
Assert.Throws<InvalidOperationException>(() => list.Add(1));
Assert.Throws<InvalidOperationException>(() => list[0] = 1);
Assert.Throws<InvalidOperationException>(() => list.Clear());
Assert.Throws<InvalidOperationException>(() => list.RemoveAt(0));
Assert.Throws<InvalidOperationException>(() => list.Remove(0));
Assert.Throws<InvalidOperationException>(() => list.Insert(0, 0));
}
[Test]
public void Freeze_ReportsFrozen()
{
var list = new RepeatedField<int> { 0 };
Assert.IsFalse(list.IsFrozen);
Assert.IsFalse(list.IsReadOnly);
list.Freeze();
Assert.IsTrue(list.IsFrozen);
Assert.IsTrue(list.IsReadOnly);
}
[Test]
public void Clone_ReturnsMutable()
{
var list = new RepeatedField<int> { 0 };
list.Freeze();
var clone = list.Clone();
clone[0] = 1;
}
}
}
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