Tests

Fix `RaggedEnd` in range and returning `DiffEqArray` #315

Job	Run time
Tests (pre, Core) / Tests - Core	6m 23s
Tests (1, Core) / Tests - Core	11m 29s
Tests (pre, Downstream) / Tests - Downstream	10m 0s
Tests (1, nopre) / Tests - nopre	2m 12s
Tests (lts, Downstream) / Tests - Downstream	5m 55s
Tests (lts, Core) / Tests - Core	5m 54s
Tests (lts, nopre) / Tests - nopre	2m 49s
Tests (1, Downstream) / Tests - Downstream	13m 11s
	57m 53s

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