0.0.1

node_modules/streamx/test/writable.js

@@ -0,0 +1,103 @@
+const tape = require('tape')
+const { Writable } = require('../')
+
+tape('opens before writes', function (t) {
+  t.plan(2)
+  const trace = []
+  const stream = new Writable({
+    open (cb) {
+      trace.push('open')
+      return cb(null)
+    },
+    write (data, cb) {
+      trace.push('write')
+      return cb(null)
+    }
+  })
+  stream.on('close', () => {
+    t.equals(trace.length, 2)
+    t.equals(trace[0], 'open')
+  })
+  stream.write('data')
+  stream.end()
+})
+
+tape('drain', function (t) {
+  const stream = new Writable({
+    highWaterMark: 1,
+    write (data, cb) {
+      cb(null)
+    }
+  })
+
+  t.notOk(stream.write('a'))
+  stream.on('drain', function () {
+    t.pass('drained')
+    t.end()
+  })
+})
+
+tape('drain multi write', function (t) {
+  t.plan(4)
+
+  const stream = new Writable({
+    highWaterMark: 1,
+    write (data, cb) {
+      cb(null)
+    }
+  })
+
+  t.notOk(stream.write('a'))
+  t.notOk(stream.write('a'))
+  t.notOk(stream.write('a'))
+  stream.on('drain', function () {
+    t.pass('drained')
+    t.end()
+  })
+})
+
+tape('drain async write', function (t) {
+  let flushed = false
+
+  const stream = new Writable({
+    highWaterMark: 1,
+    write (data, cb) {
+      setImmediate(function () {
+        flushed = true
+        cb(null)
+      })
+    }
+  })
+
+  t.notOk(stream.write('a'))
+  t.notOk(flushed)
+  stream.on('drain', function () {
+    t.ok(flushed)
+    t.end()
+  })
+})
+
+tape('writev', function (t) {
+  const expected = [[], ['ho']]
+
+  const s = new Writable({
+    writev (batch, cb) {
+      t.same(batch, expected.shift())
+      cb(null)
+    }
+  })
+
+  for (let i = 0; i < 100; i++) {
+    expected[0].push('hi-' + i)
+    s.write('hi-' + i)
+  }
+
+  s.on('drain', function () {
+    s.write('ho')
+    s.end()
+  })
+
+  s.on('finish', function () {
+    t.end()
+  })
+})