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node-red/test/red/api/flow_spec.js

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/**
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* Copyright 2014, 2016 IBM Corp.
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var should = require("should");
var request = require('supertest');
var express = require('express');
var bodyParser = require('body-parser');
var sinon = require('sinon');
var when = require('when');
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var flow = require("../../../red/api/flow");
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describe("flow api", function() {
var app;
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before(function() {
app = express();
app.use(bodyParser.json());
app.get("/flow/:id",flow.get);
app.post("/flow",flow.post);
app.put("/flow/:id",flow.put);
app.delete("/flow/:id",flow.delete);
});
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describe("get", function() {
before(function() {
flow.init({
settings:{},
nodes: {
getFlow: function(id) {
if (id === '123') {
return {id:'123'}
} else {
return null;
}
}
},
log:{ audit: sinon.stub() }
});
})
it('gets a known flow', function(done) {
request(app)
.get('/flow/123')
.set('Accept', 'application/json')
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('id','123');
done();
});
})
it('404s an unknown flow', function(done) {
request(app)
.get('/flow/456')
.set('Accept', 'application/json')
.expect(404)
.end(done);
})
});
describe("add", function() {
before(function() {
flow.init({
settings:{},
nodes: {
addFlow: function(f) {
if (f.id === "123") {
return when.resolve('123')
} else {
return when.reject(new Error("test error"));
}
}
},
log:{ audit: sinon.stub() }
});
})
it('adds a new flow', function(done) {
request(app)
.post('/flow')
.set('Accept', 'application/json')
.send({id:'123'})
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('id','123');
done();
});
})
it('400 an invalid flow', function(done) {
request(app)
.post('/flow')
.set('Accept', 'application/json')
.send({id:'error'})
.expect(400)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('error','unexpected_error');
res.body.should.has.a.property('message','Error: test error');
done();
});
})
})
describe("update", function() {
var nodes;
before(function() {
nodes = {
updateFlow: function(id,f) {
var err;
if (id === "123") {
return when.resolve()
} else if (id === "unknown") {
err = new Error();
err.code = 404;
throw err;
} else if (id === "unexpected") {
err = new Error();
err.code = 500;
throw err;
} else {
return when.reject(new Error("test error"));
}
}
};
flow.init({
settings:{},
nodes: nodes,
log:{ audit: sinon.stub() }
});
})
it('updates an existing flow', function(done) {
sinon.spy(nodes,"updateFlow");
request(app)
.put('/flow/123')
.set('Accept', 'application/json')
.send({id:'123'})
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('id','123');
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nodes.updateFlow.calledOnce.should.be.true();
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nodes.updateFlow.lastCall.args[0].should.eql('123');
nodes.updateFlow.lastCall.args[1].should.eql({id:'123'});
nodes.updateFlow.restore();
done();
});
})
it('404s on an unknown flow', function(done) {
request(app)
.put('/flow/unknown')
.set('Accept', 'application/json')
.send({id:'123'})
.expect(404)
.end(done);
})
it('400 on async update error', function(done) {
request(app)
.put('/flow/async_error')
.set('Accept', 'application/json')
.send({id:'123'})
.expect(400)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('error','unexpected_error');
res.body.should.has.a.property('message','Error: test error');
done();
});
})
it('400 on sync update error', function(done) {
request(app)
.put('/flow/unexpected')
.set('Accept', 'application/json')
.send({id:'123'})
.expect(400)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('error',500);
res.body.should.has.a.property('message','Error');
done();
});
})
})
describe("delete", function() {
var nodes;
before(function() {
nodes = {
removeFlow: function(id) {
var err;
if (id === "123") {
return when.resolve()
} else if (id === "unknown") {
err = new Error();
err.code = 404;
throw err;
} else if (id === "unexpected") {
err = new Error();
err.code = 500;
throw err;
}
}
};
flow.init({
settings:{},
nodes: nodes,
log:{ audit: sinon.stub() }
});
})
it('updates an existing flow', function(done) {
sinon.spy(nodes,"removeFlow");
request(app)
.delete('/flow/123')
.expect(204)
.end(function(err,res) {
if (err) {
return done(err);
}
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nodes.removeFlow.calledOnce.should.be.true();
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nodes.removeFlow.lastCall.args[0].should.eql('123');
nodes.removeFlow.restore();
done();
});
})
it('404s on an unknown flow', function(done) {
request(app)
.delete('/flow/unknown')
.expect(404)
.end(done);
})
it('400 on remove error', function(done) {
request(app)
.delete('/flow/unexpected')
.expect(400)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.has.a.property('error',500);
res.body.should.has.a.property('message','Error');
done();
});
})
})
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});