git ssb

1
const tape = require('tape')
2
const IPFS = require('ipfs')
3
const Hypervisor = require('../')
4
const Message = require('primea-message')
5
6
const node = new IPFS()
7
8
class BaseContainer {
9
  constructor (kernel) {
10
    this.kernel = kernel
11
  }
12
13
  static createState (code) {
14
    return {
15
      nonce: [0],
16
      ports: {}
17
    }
18
  }
19
}
20
21
node.on('error', err => {
22
  console.log(err)
23
})
24
25
node.on('start', () => {
26
  tape('basic', async t => {
27
    const message = new Message()
28
    const expectedState = {
29
      '/': 'zdpuAntkdU7yBJojcBT5Q9wBhrK56NmLnwpHPKaEGMFnAXpv7'
30
    }
31
32
    class testVMContainer extends BaseContainer {
33
      run (m) {
34
        t.true(m === message, 'should recive a message')
35
      }
36
    }
37
38
    const hypervisor = new Hypervisor({dag: node.dag})
39
    hypervisor.registerContainer('test', testVMContainer)
40
41
    const rootContainer = await hypervisor.createInstance('test')
42
    const port = await rootContainer.createPort('test', 'first')
43
44
    await rootContainer.send(port, message)
45
46
    const stateRoot = await hypervisor.createStateRoot(rootContainer, Infinity)
47
    t.deepEquals(stateRoot, expectedState, 'expected root!')
48
    t.end()
49
  })
50
51
  tape('one child contract', async t => {
52
    let message = new Message()
53
    const expectedState = {
54
      '/': 'zdpuAofSzrBqwYs6z1r28fMeb8z5oSKF6CcWA6m22RqazgoTB'
55
    }
56
    let hasResolved = false
57
58
    class testVMContainer2 extends BaseContainer {
59
      run (m) {
60
        t.true(m === message, 'should recive a message 2')
61
        return new Promise((resolve, reject) => {
62
          setTimeout(() => {
63
            this.kernel.incrementTicks(1)
64
            hasResolved = true
65
            resolve()
66
          }, 200)
67
        })
68
      }
69
    }
70
71
    class testVMContainer extends BaseContainer {
72
      async run (m) {
73
        const port = await this.kernel.createPort('test2', 'child')
74
        await this.kernel.send(port, m)
75
        this.kernel.incrementTicks(1)
76
      }
77
    }
78
79
    const hypervisor = new Hypervisor({dag: node.dag})
80
    hypervisor.registerContainer('test', testVMContainer)
81
    hypervisor.registerContainer('test2', testVMContainer2)
82
83
    let root = await hypervisor.createInstance('test')
84
    let port = await root.createPort('test', 'first')
85
86
    await root.send(port, message)
87
    const stateRoot = await hypervisor.createStateRoot(root, Infinity)
88
    t.true(hasResolved, 'should resolve before generating the state root')
89
    t.deepEquals(stateRoot, expectedState, 'expected state')
90
91
    // test reviving the state
92
    class testVMContainer3 extends BaseContainer {
93
      async run (m) {
94
        const port = this.kernel.ports.getRef('child')
95
        await this.kernel.send(port, m)
96
        this.kernel.incrementTicks(1)
97
      }
98
    }
99
100
    hypervisor.registerContainer('test', testVMContainer3)
101
    root = await hypervisor.createInstance('test', stateRoot)
102
    port = await root.ports.getRef('first')
103
104
    await root.send(port, message)
105
    await hypervisor.createStateRoot(root, Infinity)
106
107
    t.end()
108
109
    node.stop(() => {
110
      process.exit()
111
    })
112
  })
113
114
  tape.skip('should wait on parent', async t => {
115
    let r
116
    const lock = new Promise((resolve, reject) => {
117
      r = resolve
118
    })
119
120
    let parentHasFinished = false
121
    let childHasFinished = false
122
    class testVMContainer extends BaseContainer {
123
      async run (m) {
124
        console.log('in parent')
125
        const port = await this.kernel.createPort(this.kernel.ports, 'test2', 'child')
126
        await this.kernel.send(port, m)
127
        await lock
128
        return new Promise((resolve, reject) => {
129
          setTimeout(() => {
130
            console.log('parent done')
131
            this.kernel.incrementTicks(1)
132
            parentHasFinished = true
133
            t.equals(childHasFinished, false, 'child should not have finished at this point')
134
            resolve()
135
          }, 200)
136
        })
137
      }
138
    }
139
140
    // test reviving the state
141
    class testVMContainer2 extends BaseContainer {
142
      async run (m) {
143
        console.log('in child')
144
        childHasFinished = true
145
        r()
146
        this.kernel.incrementTicks(1)
147
        try {
148
          await this.kernel.ports.getNextMessage()
149
        } catch (e) {
150
          console.log(e)
151
        }
152
        t.equals(parentHasFinished, true, 'parent should have finished at this point')
153
      }
154
    }
155
156
    const hypervisor = new Hypervisor({dag: node.dag})
157
    hypervisor.addVM('test', testVMContainer)
158
    hypervisor.addVM('test2', testVMContainer2)
159
    const port = hypervisor.createPort('test')
160
161
    let message = new Message()
162
    try {
163
      await hypervisor.send(port, message)
164
      await hypervisor.createStateRoot(port, Infinity)
165
    } catch (e) {
166
      console.log(e)
167
    }
168
169
    t.end()
170
  })
171
})
172