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Mini Shell
Mini Shell
helpers = require('./helpers')
AWS = helpers.AWS
describe 'AWS.ResourceWaiter', ->
describe 'wait', ->
it 'waits until a given state is met', ->
err = null; data = null; resp = null
db = new AWS.DynamoDB
helpers.mockResponses db, [
{data: {Table: TableStatus: 'LOADING'}},
{data: {Table: TableStatus: 'LOADING'}},
{data: {Table: TableStatus: 'ACTIVE'}}
]
waiter = new AWS.ResourceWaiter(db, 'tableExists')
waiter.wait (e, d) -> resp = this; err = e; data = d
expect(err).toEqual(null)
expect(data.Table.TableStatus).toEqual('ACTIVE')
expect(resp.retryCount).toEqual(2)
it 'can override the final state', ->
err = null; data = null; resp = null
db = new AWS.DynamoDB
helpers.mockResponses db, [
{data: {Table: TableStatus: 'LOADING'}},
{data: {Table: TableStatus: 'LOADING'}},
{data: {Table: TableStatus: 'ACTIVE'}},
{data: {Table: TableStatus: 'FOO'}}
]
waiter = new AWS.ResourceWaiter(db, {tableExists: 'FOO'})
waiter.wait (e, d) -> resp = this; err = e; data = d
expect(err).toEqual(null)
expect(data.Table.TableStatus).toEqual('FOO')
expect(resp.retryCount).toEqual(3)
it 'throws an error if terminal state is not configured', ->
try
new AWS.ResourceWaiter(new AWS.DynamoDB, 'invalidState')
catch e
err = e
expect(err.message).toEqual('State invalidState not found.')
it 'gives up after a maximum number of retries', ->
err = null; data = null; resp = null
db = new AWS.DynamoDB
resps = ({data: {Table: {TableStatus: 'LOADING'}}} for _ in [1..26])
resps.push({data: {Table: {TableStatus: 'ACTIVE'}}})
helpers.mockResponses db, resps
waiter = new AWS.ResourceWaiter(db, 'tableExists')
waiter.wait (e, d) -> resp = this; err = e; data = d
expect(data).toEqual(null)
expect(err.code).toEqual('ResourceNotReady')
expect(resp.retryCount).toEqual(25) # 25 max retries
expect(resp.error.retryDelay).toEqual(20000) # 20s delay
it 'accepts error state as a terminal state', ->
err = null; data = null; resp = null
s3 = new AWS.S3
helpers.mockResponses s3, [
{httpResponse: {statusCode: 200}},
{httpResponse: {statusCode: 200}},
{httpResponse: {statusCode: 404}}
]
waiter = new AWS.ResourceWaiter(s3, 'bucketNotExists')
waiter.wait Bucket: 'bucket', (e, d) -> resp = this; err = e; data = d
expect(err).toEqual(null)
expect(resp.httpResponse.statusCode).toEqual(404)
expect(resp.retryCount).toEqual(3)
it 'fails fast if failure value is found', ->
err = null; data = null; resp = null
ec2 = new AWS.EC2
helpers.mockResponses ec2, [
{data: {Reservations: [{Instances: [{State: {Name: 'pending'}}]}]}},
{data: {Reservations: [{Instances: [{State: {Name: 'pending'}}]}]}},
{data: {Reservations: [{Instances: [{State: {Name: 'pending'}}]}]}},
{data: {Reservations: [{Instances: [{State: {Name: 'terminated'}}]}]}},
{data: {Reservations: [{Instances: [{State: {Name: 'pending'}}]}]}},
{data: {Reservations: [{Instances: [{State: {Name: 'running'}}]}]}}
]
waiter = new AWS.ResourceWaiter(ec2, 'instanceRunning')
waiter.wait InstanceIds: ['id-123456'], (e, d) -> resp = this; err = e; data = d
expect(data).toEqual(null)
expect(err.code).toEqual('ResourceNotReady')
expect(resp.retryCount).toEqual(3)
Zerion Mini Shell 1.0