git ssb

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const tape = require('tape')
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const fs = require('fs')
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const WasmContainer = require('../index.js')
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const dir = `${__dirname}/wasm/`
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tape('interface tests', async t => {
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  const code = fs.readFileSync(`${dir}testCode.wasm`)
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  class TestInterface {
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    constructor (opts) {
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      opts.response.test = 'response!'
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    }
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    static get name () {
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      return 'test'
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    }
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  }
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  t.equals(WasmContainer.name, 'wasm', 'container should have a name')
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  const container = new WasmContainer(code)
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  t.ok(container instanceof WasmContainer, 'should be instance of a container class')
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  const promise = container.run()
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  await promise
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  t.ok(promise instanceof Promise, 'run should return instance of promise')
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  const results = await container.run(null, null, [TestInterface])
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  t.deepEquals(results, {
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    'test': {
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      'test': 'response!'
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    }
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  })
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  t.end()
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})
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tape('wasm interface test', async t => {
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  t.plan(1)
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  const code = fs.readFileSync(`${dir}testMem.wasm`)
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  class TestInterfaceMem {
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    constructor (opts) {
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      this.opts = opts
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    }
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    static get name () {
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      return 'test'
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    }
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    memory () {
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      const memory = this.opts.vm.memory()
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      t.ok(memory instanceof ArrayBuffer, 'should have access to memory')
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    }
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  }
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  const container = new WasmContainer(code)
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  await container.run(null, null, [TestInterfaceMem])
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})
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tape('async wasm interface test', async t => {
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  t.plan(1)
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  const code = fs.readFileSync(`${dir}asyncTest.wasm`)
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  class TestInterfaceMem {
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    constructor (opts) {
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      this.opts = opts
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    }
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    static get name () {
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      return 'test'
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    }
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    async (cbOffset) {
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      const opPromise = new Promise((resolve, reject) => {
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        resolve()
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      })
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      this.opts.vm.pushOpsQueue(opPromise, cbOffset)
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    }
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    done () {
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      t.ok(true)
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    }
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  }
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  const container = new WasmContainer(code)
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  await container.run(null, null, [TestInterfaceMem])
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})
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