Tests

Fix deprecation warnings in test suite #338

Job	Run time
Tests (lts, Downstream) / Tests - Downstream	10m 3s
Tests (1, Core) / Tests - Core	6m 15s
Tests (lts, Core) / Tests - Core	4m 20s
Tests (pre, Downstream) / Tests - Downstream	13m 39s
Tests (lts, nopre) / Tests - nopre	3m 5s
Tests (1, nopre) / Tests - nopre	3m 12s
Tests (1, Downstream) / Tests - Downstream	12m 1s
Tests (pre, Core) / Tests - Core	5m 51s
	58m 26s

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