54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
package simulation
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import (
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"encoding/json"
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"fmt"
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"math/rand"
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"testing"
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)
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func getTestingMode(tb testing.TB) (testingMode bool, t *testing.T, b *testing.B) {
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testingMode = false
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if _t, ok := tb.(*testing.T); ok {
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t = _t
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testingMode = true
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} else {
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b = tb.(*testing.B)
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}
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return testingMode, t, b
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}
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// getBlockSize returns a block size as determined from the transition matrix.
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// It targets making average block size the provided parameter. The three
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// states it moves between are:
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// - "over stuffed" blocks with average size of 2 * avgblocksize,
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// - normal sized blocks, hitting avgBlocksize on average,
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// - and empty blocks, with no txs / only txs scheduled from the past.
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func getBlockSize(r *rand.Rand, params Params, lastBlockSizeState, avgBlockSize int) (state, blockSize int) {
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// TODO: Make default blocksize transition matrix actually make the average
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// blocksize equal to avgBlockSize.
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state = params.BlockSizeTransitionMatrix().NextState(r, lastBlockSizeState)
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switch state {
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case 0:
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blockSize = r.Intn(avgBlockSize * 4)
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case 1:
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blockSize = r.Intn(avgBlockSize * 2)
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default:
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blockSize = 0
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}
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return state, blockSize
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}
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func mustMarshalJSONIndent(o interface{}) []byte {
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bz, err := json.MarshalIndent(o, "", " ")
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if err != nil {
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panic(fmt.Sprintf("failed to JSON encode: %s", err))
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}
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return bz
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}
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