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Test closing a never-opened connection #379

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Merged
Giorgi merged 1 commit into from
Oct 20, 2026
Merged

Test closing a never-opened connection #379

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17 changes: 16 additions & 1 deletion DuckDB.NET.Test/DuckDBConnectionTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,21 @@ public async Task CloseCanBeCalledMoreThanOnce()
stateChanges.Should().Be(1, "only the first Close changes the state");
}

[Fact]
[Trait("Category", "Baseline")]
public async Task CloseNeverOpenedConnectionDoesNotThrow()
{
await using var duckDBConnection = new DuckDBConnection("DataSource=:memory:");
var stateChanges = 0;
duckDBConnection.StateChange += (_, _) => stateChanges++;

duckDBConnection.Close();
await duckDBConnection.CloseAsync();

duckDBConnection.State.Should().Be(ConnectionState.Closed);
stateChanges.Should().Be(0, "a connection that was never opened does not change state");
}

[Fact]
[Trait("Category", "Baseline")]
public async Task CloseAfterDisposeDoesNotThrow()
Expand Down Expand Up @@ -552,4 +567,4 @@ public void ConnectionSetsDuckDBApiConfigOption()
value.Should().StartWith("DuckDB.NET");
}
}
}
}
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