99 lines
2.6 KiB
Go
99 lines
2.6 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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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/cosmos/cosmos-sdk/baseapp"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// assertAll asserts the all invariants against application state
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func assertAllInvariants(t *testing.T, app *baseapp.BaseApp, invs sdk.Invariants,
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event string, logWriter LogWriter, allInvariants bool) {
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ctx := app.NewContext(false, abci.Header{Height: app.LastBlockHeight() + 1})
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var invariantResults []string
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for i := 0; i < len(invs); i++ {
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res, stop := invs[i](ctx)
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if stop {
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invariantResults = append(invariantResults, res)
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}
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}
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if len(invariantResults) > 0 {
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fmt.Printf("Invariants broken after %s\n\n", event)
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for _, res := range invariantResults {
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fmt.Printf("%s\n", res)
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}
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logWriter.PrintLogs()
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t.Fatal()
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}
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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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// PeriodicInvariants returns an array of wrapped Invariants. Where each
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// invariant function is only executed periodically defined by period and offset.
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func PeriodicInvariants(invariants []sdk.Invariant, period, offset int) []sdk.Invariant {
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var outInvariants []sdk.Invariant
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for _, invariant := range invariants {
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outInvariant := func(ctx sdk.Context) (string, bool) {
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if int(ctx.BlockHeight())%period == offset {
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return invariant(ctx)
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}
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return "", false
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}
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outInvariants = append(outInvariants, outInvariant)
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}
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return outInvariants
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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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