mirror of
https://github.com/kaspanet/kaspad.git
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0a30837aac
* [NOD-56] Created devnet * [NOD-56] Fixed tests * [NOD-56] Fixed go vet errors * [NOD-56] Added TestSolveGenesisBlock function * [NOD-56] Created command line tool for solving genesis blocks
112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
package util_test
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import (
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"fmt"
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"math"
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"math/big"
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"github.com/daglabs/btcd/util"
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)
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func ExampleAmount() {
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a := util.Amount(0)
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fmt.Println("Zero Satoshi:", a)
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a = util.Amount(1e8)
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fmt.Println("100,000,000 Satoshis:", a)
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a = util.Amount(1e5)
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fmt.Println("100,000 Satoshis:", a)
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// Output:
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// Zero Satoshi: 0 BTC
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// 100,000,000 Satoshis: 1 BTC
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// 100,000 Satoshis: 0.001 BTC
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}
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func ExampleNewAmount() {
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amountOne, err := util.NewAmount(1)
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(amountOne) //Output 1
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amountFraction, err := util.NewAmount(0.01234567)
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(amountFraction) //Output 2
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amountZero, err := util.NewAmount(0)
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(amountZero) //Output 3
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amountNaN, err := util.NewAmount(math.NaN())
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(amountNaN) //Output 4
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// Output: 1 BTC
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// 0.01234567 BTC
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// 0 BTC
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// invalid bitcoin amount
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}
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func ExampleAmount_unitConversions() {
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amount := util.Amount(44433322211100)
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fmt.Println("Satoshi to kBTC:", amount.Format(util.AmountKiloBTC))
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fmt.Println("Satoshi to BTC:", amount)
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fmt.Println("Satoshi to MilliBTC:", amount.Format(util.AmountMilliBTC))
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fmt.Println("Satoshi to MicroBTC:", amount.Format(util.AmountMicroBTC))
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fmt.Println("Satoshi to Satoshi:", amount.Format(util.AmountSatoshi))
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// Output:
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// Satoshi to kBTC: 444.333222111 kBTC
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// Satoshi to BTC: 444333.222111 BTC
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// Satoshi to MilliBTC: 444333222.111 mBTC
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// Satoshi to MicroBTC: 444333222111 μBTC
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// Satoshi to Satoshi: 44433322211100 Satoshi
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}
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// This example demonstrates how to convert the compact "bits" in a block header
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// which represent the target difficulty to a big integer and display it using
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// the typical hex notation.
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func ExampleCompactToBig() {
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// Convert the bits from block 300000 in the main block chain.
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bits := uint32(419465580)
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targetDifficulty := util.CompactToBig(bits)
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// Display it in hex.
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fmt.Printf("%064x\n", targetDifficulty.Bytes())
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// Output:
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// 0000000000000000896c00000000000000000000000000000000000000000000
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}
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// This example demonstrates how to convert a target difficulty into the compact
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// "bits" in a block header which represent that target difficulty .
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func ExampleBigToCompact() {
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// Convert the target difficulty from block 300000 in the main block
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// chain to compact form.
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t := "0000000000000000896c00000000000000000000000000000000000000000000"
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targetDifficulty, success := new(big.Int).SetString(t, 16)
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if !success {
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fmt.Println("invalid target difficulty")
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return
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}
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bits := util.BigToCompact(targetDifficulty)
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fmt.Println(bits)
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// Output:
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// 419465580
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}
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