from2 - npm Package Compare versions

Comparing version 2.0.3 to 2.1.0

index.js

@@ -14,3 +14,10 @@ var Readable = require('readable-stream').Readable
   return function (_, cb) {
-    cb(null, list.length ? list.shift() : null)
+    var err = null
+    var item = list.length ? list.shift() : null
+    if (item instanceof Error) {
+      err = item
+      item = null
+    }
+
+    cb(err, item)
   }
@@ -17,0 +24,0 @@ }

package.json

 {
   "name": "from2",
   "description": "Convenience wrapper for ReadableStream, with an API lifted from \"from\" and \"through2\"",
-  "version": "2.0.3",
+  "version": "2.1.0",
   "main": "index.js",
@@ -6,0 +6,0 @@ "scripts": {

test.js

@@ -87,1 +87,38 @@ var test = require('tape')
 })
+
+
+test('arrays can emit errors', function (t) {
+  var input = ['a', 'b', new Error('ooops'), 'c']
+  var stream = from(input)
+  var output = []
+  stream.on('data', function (letter) {
+    output.push(letter.toString())
+  })
+  stream.on('error', function(e){
+    t.deepEqual(['a', 'b'], output)
+    t.equal('ooops', e.message)
+    t.end()
+  })  
+  stream.on('end', function () {
+    t.fail('the stream should have errored')
+  })
+})
+
+test('obj arrays can emit errors', function (t) {
+  var input = [{foo:'a'}, {foo:'b'}, new Error('ooops'), {foo:'c'}]
+  var stream = from.obj(input)
+  var output = []
+  stream.on('data', function (letter) {
+    output.push(letter)
+  })
+  stream.on('error', function(e){
+    t.deepEqual([{foo:'a'}, {foo:'b'}], output)
+    t.equal('ooops', e.message)
+    t.end()
+  })
+  stream.on('end', function () {
+    t.fail('the stream should have errored')
+  })
+})
+
+

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Total package byte prevSize

8968

increased by12.54%

Lines of code

186

increased by25.68%

No dependency changes