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725b36bf09
so that sat amounts can be read without counting zeroes before: 350sat = 0.0000035 BTC 3500sat = 0.000035 BTC after: 350sat = 0.00000350 BTC 3500sat = 0.00003500 BTC fixes #1995
77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
package btcutil_test
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import (
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"fmt"
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"math"
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"github.com/btcsuite/btcd/btcutil"
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)
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func ExampleAmount() {
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a := btcutil.Amount(0)
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fmt.Println("Zero Satoshi:", a)
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a = btcutil.Amount(1e8)
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fmt.Println("100,000,000 Satoshis:", a)
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a = btcutil.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: 0.00100000 BTC
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}
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func ExampleNewAmount() {
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amountOne, err := btcutil.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 := btcutil.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 := btcutil.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 := btcutil.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 := btcutil.Amount(44433322211100)
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fmt.Println("Satoshi to kBTC:", amount.Format(btcutil.AmountKiloBTC))
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fmt.Println("Satoshi to BTC:", amount)
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fmt.Println("Satoshi to MilliBTC:", amount.Format(btcutil.AmountMilliBTC))
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fmt.Println("Satoshi to MicroBTC:", amount.Format(btcutil.AmountMicroBTC))
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fmt.Println("Satoshi to Satoshi:", amount.Format(btcutil.AmountSatoshi))
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// Output:
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// Satoshi to kBTC: 444.333222111 kBTC
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// Satoshi to BTC: 444333.22211100 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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