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fbp.coffee
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fbp.coffee
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if typeof process is 'object' and process.title is 'node'
chai = require 'chai' unless chai
parser = require '../lib/fbp'
else
parser = require 'fbp'
describe 'FBP parser', ->
it 'should provide a parse method', ->
chai.expect(parser.parse).to.be.a 'function'
describe 'with simple FBP string', ->
fbpData = "'somefile' -> SOURCE Read(ReadFile)"
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain one node', ->
chai.expect(graphData.processes).to.eql
Read:
component: 'ReadFile'
it 'should contain an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
describe 'with three-statement FBP string', ->
fbpData = """
'somefile.txt' -> SOURCE Read(ReadFile) OUT -> IN Display(Output)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain two nodes', ->
chai.expect(graphData.processes).to.eql
Read:
component: 'ReadFile'
Display:
component: 'Output'
it 'should contain an edge and an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 2
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with a more complex FBP string', ->
fbpData = """
'8003' -> LISTEN WebServer(HTTP/Server) REQUEST -> IN Profiler(HTTP/Profiler) OUT -> IN Authentication(HTTP/BasicAuth)
Authentication() OUT -> IN GreetUser(HelloController) OUT -> IN WriteResponse(HTTP/WriteResponse) OUT -> IN Send(HTTP/SendResponse)
'hello.jade' -> SOURCE ReadTemplate(ReadFile) OUT -> TEMPLATE Render(Template)
GreetUser() DATA -> OPTIONS Render() OUT -> STRING WriteResponse()
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain eight nodes', ->
chai.expect(graphData.processes).to.be.an 'object'
chai.expect(graphData.processes).to.have.keys [
'WebServer'
'Profiler'
'Authentication'
'GreetUser'
'WriteResponse'
'Send'
'ReadTemplate'
'Render'
]
it 'should contain ten edges and IIPs', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 10
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string containing an IIP with whitespace', ->
fbpData = """
'foo Bar BAZ' -> IN Display(Output)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain a node', ->
chai.expect(graphData.processes).to.eql
Display:
component: 'Output'
it 'should contain an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
chai.expect(graphData.connections[0].data).to.equal 'foo Bar BAZ'
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string containing an empty IIP string', ->
fbpData = """
'' -> IN Display(Output)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain a node', ->
chai.expect(graphData.processes).to.eql
Display:
component: 'Output'
it 'should contain an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
chai.expect(graphData.connections[0].data).to.equal ''
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string containing comments', ->
fbpData = """
# Do stuff
'foo bar' -> IN Display(Output) # Here we show the string
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain a node', ->
chai.expect(graphData.processes).to.eql
Display:
component: 'Output'
it 'should contain an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
chai.expect(graphData.connections[0].data).to.equal 'foo bar'
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string containing URL as IIP', ->
fbpData = """
'http://localhost:5984/default' -> URL Conn(couchdb/OpenDatabase)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain a node', ->
chai.expect(graphData.processes).to.eql
Conn:
component: 'couchdb/OpenDatabase'
it 'should contain an IIP', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
chai.expect(graphData.connections[0].data).to.equal 'http://localhost:5984/default'
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string containing RegExp as IIP', ->
fbpData = """
'_id=(\d+\.\d+\.\d*)=http://iks-project.eu/deliverable/$1' -> REGEXP MapDeliverableUri(MapPropertyValue)
'@type=deliverable' -> PROPERTY SetDeliverableProps(SetProperty)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain two nodes', ->
chai.expect(graphData.processes).to.eql
MapDeliverableUri:
component: 'MapPropertyValue'
SetDeliverableProps:
component: 'SetProperty'
it 'should contain two IIPs', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 2
chai.expect(graphData.connections[0].data).to.be.a 'string'
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with FBP string with EXPORTs', ->
fbpData = """
EXPORT=READ.IN:FILENAME
Read(ReadFile) OUT -> IN Display(Output)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain two nodes', ->
chai.expect(graphData.processes).to.eql
Read:
component: 'ReadFile'
Display:
component: 'Output'
it 'should contain a single connection', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 1
chai.expect(graphData.connections[0]).to.eql
src:
process: 'Read'
port: 'out'
tgt:
process: 'Display'
port: 'in'
it 'should contain an export', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 1
chai.expect(graphData.exports[0]).to.eql
private: 'read.in'
public: 'filename'
describe 'with FBP string containing node metadata', ->
fbpData = """
Read(ReadFile) OUT -> IN Display(Output:foo)
# And we drop the rest
Display() OUT -> IN Drop(Drop:foo)
"""
graphData = null
it 'should produce a graph JSON object', ->
graphData = parser.parse fbpData
chai.expect(graphData).to.be.an 'object'
describe 'the generated graph', ->
it 'should contain nodes with named routes', ->
chai.expect(graphData.processes).to.eql
Read:
component: 'ReadFile'
Display:
component: 'Output'
metadata:
routes: ['foo']
Drop:
component: 'Drop'
metadata:
routes: ['foo']
it 'should contain two edges', ->
chai.expect(graphData.connections).to.be.an 'array'
chai.expect(graphData.connections.length).to.equal 2
it 'should contain no exports', ->
chai.expect(graphData.exports).to.be.an 'array'
chai.expect(graphData.exports.length).to.equal 0
describe 'with an invalid FBP string', ->
fbpData = """
'foo' -> Display(Output)
"""
it 'should fail with an Exception', ->
chai.expect(-> parser.parse fbpData).to.throw Error