C#•2y ago

Catastrophic failure while running xunit tests

When I run dotnet test in my xunit project all the tests pass, however, while the command is running this gets written to the output:

[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.46]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.46] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')

[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.45]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.45] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')
[xUnit.net 00:00:00.46]     [FATAL ERROR] System.ArgumentException
[xUnit.net 00:00:00.46] Catastrophic failure: System.ArgumentException : There is at least one object in this array that cannot be serialized (Parameter 'array')

It doesn't even include the line where it failed so I have no idea how to fix it.

2 Replies

ZacharyPatten•2y ago

link code if open source

MiguelOP•2y ago

Fixed, it was because xunit apparently does not play well with implicit conversions, in this case an int to a BigInteger

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Catastrophic failure while running xunit tests