Native neo4j datetime; increase test coverage in properties.py

[mariusconjeaud]

See #530

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.00%. Comparing base (7c6662a) to head (0bfc4e3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## rc/5.3.2 #811 +/- ## ============================================ + Coverage 91.47% 92.00% +0.53% ============================================ Files 34 34 Lines 4574 4590 +16 ============================================ + Hits 4184 4223 +39 + Misses 390 367 -23 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud