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e439f4aff6
* forkchoice tests * blockchain tests * no fatal errors * use ZeroHash for genesis * deal with zerohashes at genesis * avoid nil best justified checkpoint on new store * unit tests * Debug log Co-authored-by: terencechain <terence@prysmaticlabs.com> * Terence's review * update capitalization Co-authored-by: terencechain <terence@prysmaticlabs.com> * update capitalization Co-authored-by: terencechain <terence@prysmaticlabs.com> * update capitalization Co-authored-by: terencechain <terence@prysmaticlabs.com> * update capitalization Co-authored-by: terencechain <terence@prysmaticlabs.com> Co-authored-by: terencechain <terence@prysmaticlabs.com>
104 lines
3.7 KiB
Go
104 lines
3.7 KiB
Go
package doublylinkedtree
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import (
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"context"
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"testing"
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"github.com/prysmaticlabs/prysm/config/params"
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"github.com/prysmaticlabs/prysm/testing/assert"
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"github.com/prysmaticlabs/prysm/testing/require"
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)
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func TestNoVote_CanFindHead(t *testing.T) {
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balances := make([]uint64, 16)
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f := setup(1, 1)
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ctx := context.Background()
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// The head should always start at the finalized block.
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r, err := f.Head(context.Background(), balances)
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require.NoError(t, err)
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if r != params.BeaconConfig().ZeroHash {
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t.Errorf("Incorrect head with genesis")
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}
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// Insert block 2 into the tree and verify head is at 2:
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// 0
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// /
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// 2 <- head
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state, blkRoot, err := prepareForkchoiceState(context.Background(), 0, indexToHash(2), params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, 1, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(2), r, "Incorrect head for with justified epoch at 1")
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// Insert block 1 into the tree and verify head is still at 2:
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// 0
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// / \
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// head -> 2 1
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state, blkRoot, err = prepareForkchoiceState(context.Background(), 0, indexToHash(1), params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, 1, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(2), r, "Incorrect head for with justified epoch at 1")
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// Insert block 3 into the tree and verify head is still at 2:
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// 0
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// / \
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// head -> 2 1
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// |
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// 3
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state, blkRoot, err = prepareForkchoiceState(context.Background(), 0, indexToHash(3), indexToHash(1), params.BeaconConfig().ZeroHash, 1, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(2), r, "Incorrect head for with justified epoch at 1")
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// Insert block 4 into the tree and verify head is at 4:
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// 0
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// / \
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// 2 1
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// | |
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// head -> 4 3
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state, blkRoot, err = prepareForkchoiceState(context.Background(), 0, indexToHash(4), indexToHash(2), params.BeaconConfig().ZeroHash, 1, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(4), r, "Incorrect head for with justified epoch at 1")
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// Insert block 5 with justified epoch of 2, verify head is 5
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// 0
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// / \
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// 2 1
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// | |
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// head -> 4 3
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// |
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// 5 <- justified epoch = 2
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state, blkRoot, err = prepareForkchoiceState(context.Background(), 0, indexToHash(5), indexToHash(4), params.BeaconConfig().ZeroHash, 2, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(5), r, "Incorrect head for with justified epoch at 2")
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// Insert block 6 with justified epoch of 2, verify head is at 6.
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// 0
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// / \
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// 2 1
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// | |
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// 4 3
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// |
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// 5
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// |
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// 6 <- head
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state, blkRoot, err = prepareForkchoiceState(context.Background(), 0, indexToHash(6), indexToHash(5), params.BeaconConfig().ZeroHash, 2, 1)
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require.NoError(t, err)
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require.NoError(t, f.InsertNode(ctx, state, blkRoot))
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r, err = f.Head(context.Background(), balances)
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require.NoError(t, err)
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assert.Equal(t, indexToHash(6), r, "Incorrect head for with justified epoch at 2")
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}
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