public void Null()
{
var storage = new SingleByteStringStorage();
var sbs = new SingleByteString();
ExceptionUtility.Expect <NullReferenceException>(() => storage.Remove(new SingleByteString()));
ExceptionUtility.Expect <NullReferenceException>(() => sbs.ToString());
ExceptionUtility.Expect <NullReferenceException>(() => Assert.AreEqual(0, sbs.Length));
}
public void Combine()
{
var storage = new SingleByteStringStorage();
SingleByteString hello = storage.Add("Hello");
SingleByteString world = storage.Add("World");
SingleByteString _blank_ = storage.Add(" ");
Assert.AreEqual("Hello World", hello + _blank_ + world);
Assert.AreEqual <string>("Hello", hello);
}
public void Options()
{
// Small GrowthIncrement forces a re-allocation
var storage = new SingleByteStringStorage(new SingleByteStringStorageOptions {
GrowthIncrement = 2
});
Assert.IsNotNull(storage?.Options?.Encoding);
ExceptionUtility.Expect <ArgumentException>(() => new SingleByteStringStorage(new SingleByteStringStorageOptions(Encoding.UTF8)));
SingleByteString sbs = storage.Add("A string that is longer than the GrowthIncrement");
Assert.AreEqual(sbs.Length + 4, storage.TotalUsedBytes); // +4 for header
}
public void AddRemove()
{
var storage = new SingleByteStringStorage();
SingleByteString hello = storage.Add("Hello");
Assert.AreEqual(9, storage.TotalUsedBytes); // +4 for header
Assert.IsTrue(storage.Remove(hello));
Assert.AreEqual(0, storage.Count);
Assert.AreEqual(9, storage.TotalUsedBytes); // Unchanged after removal
Assert.IsFalse(storage.Remove(hello));
Assert.AreEqual(0, storage.Count);
CollectionAssert.AreEqual(new string[0], storage.GetStrings().ToArray());
}
public void AddGet()
{
var storage = new SingleByteStringStorage();
SingleByteString hello = storage.Add("Hello");
Assert.AreEqual(1, storage.Count);
SingleByteString world = storage.Add("World");
Assert.AreEqual(2, storage.Count);
Assert.AreEqual(5, hello.Length);
Assert.AreEqual("Hello", hello.ToString());
Assert.AreEqual("Hello World", hello + " " + world);
CollectionAssert.AreEqual(new[] { "Hello", "World" }, storage.GetStrings().ToArray());
}
public void Equality()
{
var storage = new SingleByteStringStorage();
SingleByteString hello1 = storage.Add("Hello");
SingleByteString hello2 = storage.Add("Hello");
SingleByteString worlds = storage.Add("Worlds");
Assert.AreEqual(3, storage.Count);
Assert.IsTrue(hello1.Equals(hello2));
Assert.IsTrue(hello1 == hello2);
Assert.IsFalse(hello1 != hello2);
Assert.AreEqual(hello1.GetHashCode(), hello2.GetHashCode());
Assert.IsFalse(hello1.Equals(worlds));
Assert.IsFalse(hello1 == worlds);
Assert.IsTrue(hello1 != worlds);
Assert.AreNotEqual(hello1.GetHashCode(), worlds.GetHashCode());
}