dotnet core: can't run unit tests

Question

I am developing an application using dotnet core. When I try to run the unit tests, I receive the following message:

The active test run was aborted. Reason: Unable to communicate with test host process.

I already checked my .csproj files, I have uninstaled and instaled again dotnet core, tried to rebuild the projects, tried to restore the packages again, searched for code errors, but I have no clue of what is happening.

I am using Ubuntu 16.04.

The project that is facing the issue is available here: https://github.com/andremteixeira/Personal-Accounting

Answer 1

You have created a stack overflow exception that unfortunately completely crashes the test host process..

The problem is:

1. Any operator is called
2. This calls CheckNullity
3. CheckNullity has a a == null comparison
4. This invokes the custom bool operator == (Money a, Money b)
5. Which forwards to bool IsEquivalent(Money a, Money b)
6. Which has a check for a != null
7. Which invokes the custom operator bool operator != (Money a, Money b)
8. Which has a check for a == null
9. This lands at 4. again

if I replace

if (a == null || b == null)

with

if (Object.ReferenceEquals(a, null) || Object.ReferenceEquals(b, null))

in CheckNullity it breaks the cycle and all the tests run.