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🧪 test: add coverage for ArenaUtf8String.DecodeTo #79

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Merged
myarichuk merged 1 commit into from
Jun 20, 2026
Merged

🧪 test: add coverage for ArenaUtf8String.DecodeTo #79

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28 changes: 28 additions & 0 deletions tests/SharpArena.Tests/Collections/ArenaUtfStringTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,34 @@ public void ArenaUtf16String_ToUtf8_EncodesCorrectly()
utf8.Length.Should().Be(System.Text.Encoding.UTF8.GetByteCount(text));
}

[Fact]
public void ArenaUtf8String_DecodeTo_DecodesCorrectly()
{
var text = "Hello DecodeTo!";
var bytes = System.Text.Encoding.UTF8.GetBytes(text);
var utf8String = ArenaUtf8String.Clone(bytes, _arena);

var destination = new char[text.Length];
var decodedLength = utf8String.DecodeTo(destination);

decodedLength.Should().Be(text.Length);
new string(destination).Should().Be(text);
}

[Fact]
public void ArenaUtf8String_DecodeTo_WithEmojis()
{
var text = "Hello DecodeTo! 😊";
var bytes = System.Text.Encoding.UTF8.GetBytes(text);
var utf8String = ArenaUtf8String.Clone(bytes, _arena);

var destination = new char[text.Length];
var decodedLength = utf8String.DecodeTo(destination);

decodedLength.Should().Be(text.Length);
new string(destination).Should().Be(text);
}

[Fact]
public void ArenaUtf8String_GetHashCode_IsContentBased()
{
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