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using System;
using System.Collections.Generic;
using System.Text;
using NUnit.Framework;
namespace Google.ProtocolBuffers.Collections {
[TestFixture]
public class PopsicleListTest {
[Test]
public void MutatingOperationsOnFrozenList() {
PopsicleList<string> list = new PopsicleList<string>();
list.MakeReadOnly();
AssertNotSupported(() => list.Add(""));
AssertNotSupported(() => list.Clear());
AssertNotSupported(() => list.Insert(0, ""));
AssertNotSupported(() => list.Remove(""));
AssertNotSupported(() => list.RemoveAt(0));
AssertNotSupported(() => list.Add(new[] {"", ""}));
}
[Test]
public void NonMutatingOperationsOnFrozenList() {
PopsicleList<string> list = new PopsicleList<string>();
list.MakeReadOnly();
Assert.IsFalse(list.Contains(""));
Assert.AreEqual(0, list.Count);
list.CopyTo(new string[5], 0);
list.GetEnumerator();
Assert.AreEqual(-1, list.IndexOf(""));
Assert.IsTrue(list.IsReadOnly);
}
[Test]
public void MutatingOperationsOnFluidList() {
PopsicleList<string> list = new PopsicleList<string>();
list.Add("");
list.Clear();
list.Insert(0, "");
list.Remove("");
list.Add("x"); // Just to make the next call valid
list.RemoveAt(0);
}
[Test]
public void NonMutatingOperationsOnFluidList() {
PopsicleList<string> list = new PopsicleList<string>();
Assert.IsFalse(list.Contains(""));
Assert.AreEqual(0, list.Count);
list.CopyTo(new string[5], 0);
list.GetEnumerator();
Assert.AreEqual(-1, list.IndexOf(""));
Assert.IsFalse(list.IsReadOnly);
}
private static void AssertNotSupported(Action action) {
try {
action();
Assert.Fail("Expected NotSupportedException");
} catch (NotSupportedException) {
// Expected
}
}
}
}
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