38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
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package group_test
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import (
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/cosmos/cosmos-sdk/simapp"
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"github.com/cosmos/cosmos-sdk/x/group"
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)
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// TestGogoUnmarshalProposal tests some weird behavior in gogoproto
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// unmarshalling.
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// This test serves as a showcase that we need to be careful when unmarshalling
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// multiple times into the same reference.
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func TestGogoUnmarshalProposal(t *testing.T) {
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cdc := simapp.MakeTestEncodingConfig().Codec
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p1 := group.Proposal{Proposers: []string{"foo"}}
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p2 := group.Proposal{Proposers: []string{"bar"}}
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p1Bz, err := cdc.Marshal(&p1)
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require.NoError(t, err)
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p2Bz, err := cdc.Marshal(&p2)
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require.NoError(t, err)
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var p group.Proposal
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err = cdc.Unmarshal(p1Bz, &p)
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require.NoError(t, err)
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err = cdc.Unmarshal(p2Bz, &p)
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require.NoError(t, err)
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// One would expect that unmarshalling into the same `&p` reference would
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// clear the previous `p` value. But it seems that (at least for array
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// fields), the values are not replaced, but concatenated, which
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// is not an intuitive behavior.
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require.Len(t, p.Proposers, 2)
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}
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