test: fix flakiness due to duplicate denoms #15223
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On CI, with an unrelated change, we observed TestGRPCQuerySpendableBalances failing with this message: deterministic_test.go:156: [rapid] panic after 26 tests: invalid coin set 1A..,1A..: duplicate denomination A.. This occurred at: https://github.com/cosmos/cosmos-sdk/actions/runs/4304610752/jobs/7505884172#step:5:42 As noted in the message, this was reproducible with passing -rapid.seed=17310147078983591311. Instead of several independent calls to producing a string with rapid, prefer rapid.SliceOfNDistinct in order to ensure that all denoms are unique, thereby avoiding the panic in sdk.NewCoins.
alexanderbez
approved these changes
Mar 1, 2023
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Description
On CI, with an unrelated change, we observed
TestGRPCQuerySpendableBalancesfailing with this message:This occurred at: https://github.com/cosmos/cosmos-sdk/actions/runs/4304610752/jobs/7505884172#step:5:42
As noted in the message, this was reproducible with passing
-rapid.seed=17310147078983591311.Instead of several independent calls to producing a string with rapid, prefer
rapid.SliceOfNDistinctin order to ensure that all denoms are unique, thereby avoiding the panic insdk.NewCoins.Author Checklist
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