mirror of
https://github.com/mimblewimble/grin.git
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115 lines
3.2 KiB
Rust
115 lines
3.2 KiB
Rust
// Copyright 2018 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Common test functions
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use crate::keychain::{Identifier, Keychain};
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use grin_core::core::{
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block::{Block, BlockHeader},
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Transaction,
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};
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use grin_core::libtx::{
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build::{self, input, output, with_fee},
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reward,
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};
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use grin_core::pow::Difficulty;
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use grin_keychain as keychain;
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// utility producing a transaction with 2 inputs and a single outputs
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pub fn tx2i1o() -> Transaction {
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let keychain = keychain::ExtKeychain::from_random_seed(false).unwrap();
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let key_id1 = keychain::ExtKeychain::derive_key_id(1, 1, 0, 0, 0);
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let key_id2 = keychain::ExtKeychain::derive_key_id(1, 2, 0, 0, 0);
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let key_id3 = keychain::ExtKeychain::derive_key_id(1, 3, 0, 0, 0);
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build::transaction(
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vec![
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input(10, key_id1),
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input(11, key_id2),
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output(19, key_id3),
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with_fee(2),
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],
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&keychain,
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)
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.unwrap()
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}
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// utility producing a transaction with a single input and output
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pub fn tx1i1o() -> Transaction {
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let keychain = keychain::ExtKeychain::from_random_seed(false).unwrap();
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let key_id1 = keychain::ExtKeychain::derive_key_id(1, 1, 0, 0, 0);
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let key_id2 = keychain::ExtKeychain::derive_key_id(1, 2, 0, 0, 0);
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build::transaction(
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vec![input(5, key_id1), output(3, key_id2), with_fee(2)],
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&keychain,
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)
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.unwrap()
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}
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// utility producing a transaction with a single input
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// and two outputs (one change output)
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// Note: this tx has an "offset" kernel
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pub fn tx1i2o() -> Transaction {
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let keychain = keychain::ExtKeychain::from_random_seed(false).unwrap();
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let key_id1 = keychain::ExtKeychain::derive_key_id(1, 1, 0, 0, 0);
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let key_id2 = keychain::ExtKeychain::derive_key_id(1, 2, 0, 0, 0);
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let key_id3 = keychain::ExtKeychain::derive_key_id(1, 3, 0, 0, 0);
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build::transaction(
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vec![
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input(6, key_id1),
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output(3, key_id2),
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output(1, key_id3),
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with_fee(2),
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],
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&keychain,
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)
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.unwrap()
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}
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// utility to create a block without worrying about the key or previous
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// header
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pub fn new_block<K>(
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txs: Vec<&Transaction>,
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keychain: &K,
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previous_header: &BlockHeader,
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key_id: &Identifier,
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) -> Block
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where
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K: Keychain,
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{
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let fees = txs.iter().map(|tx| tx.fee()).sum();
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let reward_output = reward::output(keychain, &key_id, fees).unwrap();
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Block::new(
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&previous_header,
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txs.into_iter().cloned().collect(),
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Difficulty::min(),
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reward_output,
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)
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.unwrap()
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}
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// utility producing a transaction that spends an output with the provided
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// value and blinding key
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pub fn txspend1i1o<K>(v: u64, keychain: &K, key_id1: Identifier, key_id2: Identifier) -> Transaction
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where
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K: Keychain,
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{
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build::transaction(
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vec![input(v, key_id1), output(3, key_id2), with_fee(2)],
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keychain,
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)
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.unwrap()
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}
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