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v3.2.1. Improvement.

- v3.2.1 August 19, 2013
	- Republish with older verson of joe dev dependency to try and stop
cyclic errors
	- Better node 0.8 support when catching thrown errors
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commit d28e821694a48c878f13f1c89bf77cae5a88f393 1 parent 3bdba97
@balupton balupton authored
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4 History.md
@@ -1,5 +1,9 @@
## History
+- v3.2.1 August 19, 2013
+ - Republish with older verson of joe dev dependency to try and stop cyclic errors
+ - Better node 0.8 support when catching thrown errors
+
- v3.2.0 August 19, 2013
- Wrapped Task execution in a domain to catch uncaught errors within the task execution, as well as added checks to ensure the completion callback does not fire multiple times
- These will be reported via the `error` event that the Task will emit
View
4 package.json
@@ -1,6 +1,6 @@
{
"name": "taskgroup",
- "version": "3.2.0",
+ "version": "3.2.1",
"description": "Group together synchronous and asynchronous tasks and execute them with support for concurrency, naming, and nesting.",
"homepage": "https://github.com/bevry/taskgroup",
"keywords": [
@@ -34,7 +34,7 @@
},
"devDependencies": {
"coffee-script": "~1.6.2",
- "joe": "~1.3.0",
+ "joe": "~1.2.0",
"joe-reporter-console": "~1.2.1",
"chai": "~1.7.1"
},
View
7 src/lib/taskgroup.coffee
@@ -128,8 +128,11 @@ class Task extends EventEmitter
@taskDomain.on('error', @uncaughtExceptionCallback.bind(@))
# Listen for uncaught errors
- @taskDomain.run => ambi(@method.bind(@), args...)
- #ambi(@method.bind(@), args...)
+ @taskDomain.run =>
+ try
+ ambi(@method.bind(@), args...)
+ catch err
+ @uncaughtExceptionCallback(err)
# Chain
@
View
462 src/test/taskgroup-test.coffee
@@ -9,84 +9,86 @@ delay = 100
# Task
joe.describe 'task', (describe,it) ->
- # Async
- # Test that the task executes correctly asynchronously
- it 'should work with async', (done) ->
- # Specify how many special checks we are expecting
- checks = 0
-
- # Create our asynchronous task
- task = new Task (complete) ->
- # Wait a while as this is an async test
- wait delay, ->
+ # Basic
+ describe "basic", (suite,it) ->
+ # Async
+ # Test that the task executes correctly asynchronously
+ it 'should work with async', (done) ->
+ # Specify how many special checks we are expecting
+ checks = 0
+
+ # Create our asynchronous task
+ task = new Task (complete) ->
+ # Wait a while as this is an async test
+ wait delay, ->
+ ++checks
+ expect(task.result, "result to be null as we haven't set it yet").to.eql(null)
+ # Return no error, and the result to the completion callback completing the task
+ complete(null,10)
+
+ # Check the task completed as expected
+ task.on 'complete', (err,result) ->
+ ++checks
+ expect(task.result, "the set result to be as expected as the task has completed").to.eql([err,result])
+ expect(err, "the callback error to be null as we did not error").to.eql(null)
+ expect(result, "the callback result to be as expected").to.eql(10)
+
+ # Check task hasn't run yet
+ expect(task.running, "running to be false as we haven't started running yet").to.eql(false)
+ expect(task.result, "result to be null as we haven't started running yet").to.eql(null)
+
+ # Run thet ask
+ task.run()
+
+ # Check that task has started running
+ expect(task.running, 'running to be true as tasks execute asynchronously').to.eql(true)
+ expect(task.result, 'result to be null as tasks execute asynchronously').to.eql(null)
+
+ # Check that all our special checks have run
+ wait delay*2, ->
+ ++checks
+ expect(checks, "all our special checks have run").to.eql(3)
+ done()
+
+ # Sync
+ # Test that the task
+ it 'should work with sync', (done) ->
+ # Specify how many special checks we are expecting
+ checks = 0
+
+ # Create our synchronous task
+ task = new Task ->
++checks
expect(task.result, "result to be null as we haven't set it yet").to.eql(null)
- # Return no error, and the result to the completion callback completing the task
- complete(null,10)
-
- # Check the task completed as expected
- task.on 'complete', (err,result) ->
- ++checks
- expect(task.result, "the set result to be as expected as the task has completed").to.eql([err,result])
- expect(err, "the callback error to be null as we did not error").to.eql(null)
- expect(result, "the callback result to be as expected").to.eql(10)
-
- # Check task hasn't run yet
- expect(task.running, "running to be false as we haven't started running yet").to.eql(false)
- expect(task.result, "result to be null as we haven't started running yet").to.eql(null)
-
- # Run thet ask
- task.run()
-
- # Check that task has started running
- expect(task.running, 'running to be true as tasks execute asynchronously').to.eql(true)
- expect(task.result, 'result to be null as tasks execute asynchronously').to.eql(null)
-
- # Check that all our special checks have run
- wait delay*2, ->
- ++checks
- expect(checks, "all our special checks have run").to.eql(3)
- done()
+ # Return our result completing the task
+ return 10
- # Sync
- # Test that the task
- it 'should work with sync', (done) ->
- # Specify how many special checks we are expecting
- checks = 0
-
- # Create our synchronous task
- task = new Task ->
- ++checks
- expect(task.result, "result to be null as we haven't set it yet").to.eql(null)
- # Return our result completing the task
- return 10
-
- # Check the task completed as expected
- task.on 'complete', (err,result) ->
- ++checks
- expect(task.result, "the set result to be as expected as the task has completed").to.eql([err,result])
- expect(err, "the callback error to be null as we did not error").to.eql(null)
- expect(result, "the callback result to be as expected").to.eql(10)
-
- # Check task hasn't run yet
- expect(task.running, "running to be false as we haven't started running yet").to.eql(false)
- expect(task.result, "result to be null as we haven't started running yet").to.eql(null)
-
- # Run
- task.run()
-
- # Check that task has started running
- expect(task.running, 'running to be true as tasks execute asynchronously').to.eql(true)
- expect(task.result, 'result to be null as tasks execute asynchronously').to.eql(null)
-
- # Check that all our special checks have run
- wait delay, ->
- ++checks
- expect(checks, "all our special checks have run").to.eql(3)
- done()
+ # Check the task completed as expected
+ task.on 'complete', (err,result) ->
+ ++checks
+ expect(task.result, "the set result to be as expected as the task has completed").to.eql([err,result])
+ expect(err, "the callback error to be null as we did not error").to.eql(null)
+ expect(result, "the callback result to be as expected").to.eql(10)
+
+ # Check task hasn't run yet
+ expect(task.running, "running to be false as we haven't started running yet").to.eql(false)
+ expect(task.result, "result to be null as we haven't started running yet").to.eql(null)
+
+ # Run
+ task.run()
+
+ # Check that task has started running
+ expect(task.running, 'running to be true as tasks execute asynchronously').to.eql(true)
+ expect(task.result, 'result to be null as tasks execute asynchronously').to.eql(null)
+
+ # Check that all our special checks have run
+ wait delay, ->
+ ++checks
+ expect(checks, "all our special checks have run").to.eql(3)
+ done()
# Error Handling
- describe "error handling", (suite,it) ->
+ describe "errors", (suite,it) ->
it 'should detect return error on synchronous task', (done) ->
# Specify how many special checks we are expecting
checks = 0
@@ -162,6 +164,11 @@ joe.describe 'task', (describe,it) ->
done()
it 'should detect async throw error on asynchronous task', (done) ->
+ # Check node version
+ if process.versions.node.substr(0,3) is '0.8'
+ console.log 'skip this test on node 0.8 because domains behave differently'
+ return done()
+
# Specify how many special checks we are expecting
checks = 0
neverReached = false
@@ -200,208 +207,175 @@ joe.describe 'task', (describe,it) ->
expect(neverReached, "never reached to be false").to.eql(false)
done()
- # Sync
- it 'should detect sync error', (done) ->
- # Prepare
- checks = 0
-
- # Create
- task = new Task ->
- ++checks
- expect(task.result).to.eql(null)
- err = new Error('deliberate error')
- return err
-
- # Check
- task.on 'complete', (err) ->
- ++checks
- expect(task.result).to.eql([err])
- expect(err.message).to.eql('deliberate error')
-
- # Check
- wait 1000, ->
- ++checks
- expect(checks).to.eql(3)
- done()
-
- # Run
- task.run()
-
-
- # Async
- it 'should work with arguments in async', (done) ->
- # Prepare
- checks = 0
+ # Basic
+ describe "arguments", (suite,it) ->
+ # Sync
+ it 'should work with arguments in sync', (done) ->
+ # Prepare
+ checks = 0
- # Create
- task = new Task (a,b,complete) ->
- wait 500, ->
+ # Create
+ task = new Task (a,b) ->
++checks
expect(task.result).to.eql(null)
- complete(null,a*b)
+ return a*b
- # Apply the arguments
- task.setConfig(args:[2,5])
+ # Apply the arguments
+ task.setConfig(args:[2,5])
- # Check
- task.on 'complete', (err,result) ->
- ++checks
- expect(task.result).to.eql([err,result])
- expect(err).to.eql(null)
- expect(result).to.eql(10)
-
- # Check
- wait 1000, ->
- ++checks
- expect(checks).to.eql(3)
- done()
+ # Check
+ task.on 'complete', (err,result) ->
+ ++checks
+ expect(task.result).to.eql([err,result])
+ expect(err).to.eql(null)
+ expect(result).to.eql(10)
- # Run
- task.run()
+ # Check
+ wait 1000, ->
+ ++checks
+ expect(checks).to.eql(3)
+ done()
+ # Run
+ task.run()
- # Async
- it 'should work with arguments in sync', (done) ->
- # Prepare
- checks = 0
+ # Async
+ it 'should work with arguments in async', (done) ->
+ # Prepare
+ checks = 0
- # Create
- task = new Task (a,b) ->
- ++checks
- expect(task.result).to.eql(null)
- return a*b
+ # Create
+ task = new Task (a,b,complete) ->
+ wait 500, ->
+ ++checks
+ expect(task.result).to.eql(null)
+ complete(null,a*b)
- # Apply the arguments
- task.setConfig(args:[2,5])
+ # Apply the arguments
+ task.setConfig(args:[2,5])
- # Check
- task.on 'complete', (err,result) ->
- ++checks
- expect(task.result).to.eql([err,result])
- expect(err).to.eql(null)
- expect(result).to.eql(10)
+ # Check
+ task.on 'complete', (err,result) ->
+ ++checks
+ expect(task.result).to.eql([err,result])
+ expect(err).to.eql(null)
+ expect(result).to.eql(10)
- # Check
- wait 1000, ->
- ++checks
- expect(checks).to.eql(3)
- done()
+ # Check
+ wait 1000, ->
+ ++checks
+ expect(checks).to.eql(3)
+ done()
- # Run
- task.run()
+ # Run
+ task.run()
# Task Group
joe.describe 'taskgroup', (describe,it) ->
- # Serial
- it 'should work when running in serial', (done) ->
- tasks = new TaskGroup().setConfig({concurrency:1}).on 'complete', (err,results) ->
- expect(err).to.eql(null)
- expect(results).to.eql([[null,10], [null,5]])
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(0)
- expect(tasks.concurrency).to.eql(1)
- done()
+ # Basic
+ describe "basic", (suite,it) ->
+ # Serial
+ it 'should work when running in serial', (done) ->
+ tasks = new TaskGroup().setConfig({concurrency:1}).on 'complete', (err,results) ->
+ expect(err).to.eql(null)
+ expect(results).to.eql([[null,10], [null,5]])
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(0)
+ expect(tasks.concurrency).to.eql(1)
+ done()
- tasks.addTask (complete) ->
- expect(tasks.remaining.length).to.eql(1)
- expect(tasks.running).to.eql(1)
- wait 500, ->
+ tasks.addTask (complete) ->
expect(tasks.remaining.length).to.eql(1)
expect(tasks.running).to.eql(1)
- complete(null, 10)
+ wait 500, ->
+ expect(tasks.remaining.length).to.eql(1)
+ expect(tasks.running).to.eql(1)
+ complete(null, 10)
+
+ tasks.addTask ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(1)
+ return 5
- tasks.addTask ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(1)
- return 5
+ tasks.run()
- tasks.run()
+ # Parallel
+ it 'should work when running in parallel', (done) ->
+ tasks = new TaskGroup().setConfig({concurrency:0}).on 'complete', (err,results) ->
+ expect(err).to.eql(null)
+ expect(results).to.eql([[null,5],[null,10]])
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(0)
+ expect(tasks.concurrency).to.eql(0)
+ done()
- # Parallel
- it 'should work when running in parallel', (done) ->
- tasks = new TaskGroup().setConfig({concurrency:0}).on 'complete', (err,results) ->
- expect(err).to.eql(null)
- expect(results).to.eql([[null,5],[null,10]])
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(0)
- expect(tasks.concurrency).to.eql(0)
- done()
+ tasks.addTask (complete) ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(2)
+ wait 500, ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(1)
+ complete(null,10)
- tasks.addTask (complete) ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(2)
- wait 500, ->
+ tasks.addTask ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(2)
+ return 5
+
+ tasks.run()
+
+ # Basic
+ describe "errors", (suite,it) ->
+ # Parallel
+ it 'should handle error correctly in parallel', (done) ->
+ tasks = new TaskGroup().setConfig({concurrency:0}).on 'complete', (err,results) ->
+ expect(err.message).to.eql('deliberate error')
+ expect(results.length).to.eql(1)
expect(tasks.remaining.length).to.eql(0)
expect(tasks.running).to.eql(1)
- complete(null,10)
-
- tasks.addTask ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(2)
- return 5
-
- tasks.run()
-
- ###
- # Parallel
- it 'should handle error correctly in parallel', (done) ->
- tasks = new TaskGroup().setConfig({concurrency:0}).on 'complete', (err,results) ->
- expect(err.message).to.eql('deliberate error')
- expect(results.length).to.eql(1)
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(1)
- expect(tasks.concurrency).to.eql(0)
- done()
+ expect(tasks.concurrency).to.eql(0)
+ done()
+
+ # Error via completion callback
+ tasks.addTask (complete) ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(2)
+ wait 500, ->
+ err = new Error('deliberate error')
+ complete(err)
+ return null
- # Error via completion callback
- tasks.addTask (complete) ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(3)
- wait 500, ->
+ # Error via return
+ tasks.addTask ->
+ expect(tasks.remaining.length).to.eql(0)
+ expect(tasks.running).to.eql(2)
err = new Error('deliberate error')
- complete(err)
- return null
-
- # Error via return
- tasks.addTask ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(3)
- err = new Error('deliberate error')
- return err
-
- # Error via throw
- tasks.addTask ->
- expect(tasks.remaining.length).to.eql(0)
- expect(tasks.running).to.eql(3)
- err = new Error('deliberate error')
- throw err
- return null
-
- # Run tasks
- tasks.run()
- ###
-
- # Error Serial
- it 'should handle error correctly in serial', (done) ->
- tasks = new TaskGroup().setConfig({concurrency:1}).on 'complete', (err,results) ->
- expect(err.message).to.eql('deliberate error')
- expect(results.length).to.eql(1)
- expect(tasks.remaining.length).to.eql(1)
- expect(tasks.running).to.eql(0)
- expect(tasks.concurrency).to.eql(1)
- done()
+ return err
+
+ # Run tasks
+ tasks.run()
- tasks.addTask (complete) ->
- expect(tasks.remaining.length).to.eql(1)
- expect(tasks.running).to.eql(1)
- err = new Error('deliberate error')
- complete(err)
+ # Error Serial
+ it 'should handle error correctly in serial', (done) ->
+ tasks = new TaskGroup().setConfig({concurrency:1}).on 'complete', (err,results) ->
+ expect(err.message).to.eql('deliberate error')
+ expect(results.length).to.eql(1)
+ expect(tasks.remaining.length).to.eql(1)
+ expect(tasks.running).to.eql(0)
+ expect(tasks.concurrency).to.eql(1)
+ done()
+
+ tasks.addTask (complete) ->
+ expect(tasks.remaining.length).to.eql(1)
+ expect(tasks.running).to.eql(1)
+ err = new Error('deliberate error')
+ complete(err)
- tasks.addTask ->
- throw 'unexpected'
+ tasks.addTask ->
+ throw 'unexpected'
- tasks.run()
+ tasks.run()
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