Add test cases for sourcing information
Add test cases for sourcing information

The test framework loaded a warehouse in the beginning, and then
loaded additional copies of individual pallets into it, modifying the
in-memory contents which would make later tests fail. Change the
framework to load the warehouse anew for each test case instead.
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saab-simc-admin/palletjack,notCalle/palletjack,creideiki/palletjack,notCalle/palletjack,saab-simc-admin/palletjack,creideiki/palletjack