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using System;
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2
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using System.Collections.Immutable;
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3
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using System.Linq;
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4
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using Bencodex.Types;
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5
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using Libplanet.Action;
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6
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using Libplanet.Assets;
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7
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using Libplanet.Store.Trie;
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8
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using Libplanet.Tests.Store.Trie;
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9
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using Xunit;
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10
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11
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namespace Libplanet.Tests.Action
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12
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{
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13
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public class ActionContextTest
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14
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{
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15
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[Fact]
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16
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public void RandomShouldBeDeterministic()
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17
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1
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{
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18
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1
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(int Seed, int Expected)[] testCases =
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19
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1
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{
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20
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1
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(0, 1559595546),
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21
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1
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(1, 534011718),
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22
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1
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};
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23
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var address = new Address("21744f4f08db23e044178dafb8273aeb5ebe6644");
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foreach (var (seed, expected) in testCases)
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{
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var context = new ActionContext(
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signer: address,
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miner: address,
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blockIndex: 1,
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previousStates: new DumbAccountStateDelta(),
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31
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randomSeed: seed
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32
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1
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);
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33
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IRandom random = context.Random;
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34
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Assert.Equal(expected, random.Next());
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35
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1
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}
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36
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1
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}
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37
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38
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[Fact]
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39
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public void GuidShouldBeDeterministic()
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40
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{
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var address = new Address("21744f4f08db23e044178dafb8273aeb5ebe6644");
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42
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var context1 = new ActionContext(
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signer: address,
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miner: address,
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blockIndex: 1,
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46
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previousStates: new DumbAccountStateDelta(),
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47
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randomSeed: 0
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48
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1
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);
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49
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var context2 = new ActionContext(
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signer: address,
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miner: address,
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blockIndex: 1,
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54
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previousStates: new DumbAccountStateDelta(),
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55
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randomSeed: 0
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56
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1
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);
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57
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var context3 = new ActionContext(
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signer: address,
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60
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miner: address,
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61
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blockIndex: 1,
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62
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previousStates: new DumbAccountStateDelta(),
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63
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1
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randomSeed: 1
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64
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1
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);
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65
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66
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(Guid Expected, Guid Diff)[] testCases =
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67
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1
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{
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68
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(
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new Guid("6f460c1a-755d-48e4-ad67-65d5f519dbc8"),
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70
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new Guid("8286d046-9740-43e4-95cf-ff46699c73c4")
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71
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1
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),
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72
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1
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(
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new Guid("3b347c2b-f837-4085-ac5e-64005393b30d"),
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1
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new Guid("3410cda1-5b13-434e-af84-a54adf7a0ea0")
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75
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1
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),
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76
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1
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};
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77
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78
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1
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foreach (var (expected, diff) in testCases)
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79
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{
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80
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Assert.Equal(expected, context1.Random.GenerateRandomGuid());
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81
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1
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Assert.Equal(expected, context2.Random.GenerateRandomGuid());
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82
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1
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Assert.Equal(diff, context3.Random.GenerateRandomGuid());
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83
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1
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}
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84
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1
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}
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85
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86
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[Fact]
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87
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public void GuidVersionAndVariant()
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88
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1
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{
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89
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1
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var address = new Address("21744f4f08db23e044178dafb8273aeb5ebe6644");
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90
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91
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1
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for (var i = 0; i < 100; i++)
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92
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{
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93
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var context = new ActionContext(
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signer: address,
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miner: address,
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blockIndex: 1,
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previousStates: new DumbAccountStateDelta(),
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1
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randomSeed: i
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99
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1
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);
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100
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var guid = context.Random.GenerateRandomGuid().ToString();
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101
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102
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Assert.Equal('4', guid[14]);
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103
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Assert.True(guid[19] >= '8' && guid[19] <= 'b');
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104
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1
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}
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105
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1
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}
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106
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107
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[Fact]
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108
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public void GetUnconsumedContext()
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109
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1
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{
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110
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1
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var random = new System.Random();
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111
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1
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var original = new ActionContext(
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signer: random.NextAddress(),
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113
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1
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miner: random.NextAddress(),
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114
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blockIndex: 1,
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115
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1
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previousStates: new DumbAccountStateDelta(),
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116
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1
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randomSeed: random.Next()
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117
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1
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);
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118
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119
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// Consume original's random state...
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120
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1
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int[] values =
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121
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1
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{
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122
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1
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original.Random.Next(),
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123
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1
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original.Random.Next(),
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124
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1
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original.Random.Next(),
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125
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1
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};
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126
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127
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1
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IActionContext clone = original.GetUnconsumedContext();
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128
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1
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Assert.Equal(
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129
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1
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values,
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130
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1
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new[] { clone.Random.Next(), clone.Random.Next(), clone.Random.Next() }
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131
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1
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);
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132
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1
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}
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133
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134
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[Theory]
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135
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[InlineData(true)]
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136
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[InlineData(false)]
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137
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public void LazyPreviousStateRootHash(bool callPreviousStateRootHash)
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138
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1
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{
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139
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1
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var keyValueStore = new MemoryKeyValueStore();
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140
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1
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ITrie previousBlockStatesTrie = new MerkleTrie(keyValueStore);
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141
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1
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previousBlockStatesTrie = previousBlockStatesTrie.Set(new byte[0], default(Null));
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142
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var random = new System.Random();
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143
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var actionContext = new ActionContext(
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144
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signer: random.NextAddress(),
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145
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1
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miner: random.NextAddress(),
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146
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1
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blockIndex: 1,
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147
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1
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previousStates: new DumbAccountStateDelta(),
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148
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1
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randomSeed: random.Next(),
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149
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1
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previousBlockStatesTrie: previousBlockStatesTrie
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150
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1
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);
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151
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152
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1
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if (callPreviousStateRootHash)
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153
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1
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{
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154
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1
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_ = actionContext.PreviousStateRootHash;
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155
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1
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}
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156
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157
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1
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Assert.Equal(callPreviousStateRootHash ? 1 : 0, keyValueStore.ListKeys().Count());
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158
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1
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}
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159
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160
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private class DumbAccountStateDelta : IAccountStateDelta
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161
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{
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162
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public IImmutableSet<Address> UpdatedAddresses =>
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163
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0
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ImmutableHashSet<Address>.Empty;
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164
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165
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public IImmutableSet<Address> StateUpdatedAddresses =>
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166
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1
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ImmutableHashSet<Address>.Empty;
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167
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168
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public IImmutableDictionary<Address, IImmutableSet<Currency>>
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169
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UpdatedFungibleAssets =>
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170
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1
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ImmutableDictionary<Address, IImmutableSet<Currency>>.Empty;
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171
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172
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0
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public IValue GetState(Address address) => null;
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173
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174
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0
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public IAccountStateDelta SetState(Address address, IValue state) => this;
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175
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176
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public FungibleAssetValue GetBalance(Address address, Currency currency) =>
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177
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0
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new FungibleAssetValue(currency);
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178
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179
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public IAccountStateDelta MintAsset(Address recipient, FungibleAssetValue value) =>
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180
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0
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this;
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181
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182
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public IAccountStateDelta TransferAsset(
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183
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Address sender,
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184
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Address recipient,
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185
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FungibleAssetValue value,
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186
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bool allowNegativeBalance = false
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187
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0
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) => this;
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188
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189
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0
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public IAccountStateDelta BurnAsset(Address owner, FungibleAssetValue value) => this;
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190
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}
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|
191
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}
|
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192
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}
|
longfin