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Add more tail node tests 

- add 'file doesn't exist initially' text
- remove resource file as it is programmatically modified by the test
- tweak test checking in truncated file test
This commit is contained in:
Nick O'Leary 2014-08-27 23:29:26 +01:00
parent 96a0a9d2d2
commit 691ef12e04
3 changed files with 47 additions and 15 deletions
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55
test/nodes/core/storage/28-tail_spec.js
View File

@ -26,15 +26,17 @@ describe('TailNode', function() {
var resourcesDir = path.join(__dirname,"..","..","..","resources");
var fileToTail = path.join(resourcesDir,"28-tail-test-file.txt");
fs.writeFileSync(fileToTail, "Tail message line 1\nTail message line 2\n");
beforeEach(function(done) {
fs.writeFileSync(fileToTail, "Tail message line 1\nTail message line 2\n");
helper.startServer(done);
});
afterEach(function(done) {
helper.unload();
helper.stopServer(done);
helper.unload().then(function() {
fs.unlinkSync(fileToTail);
helper.stopServer(done);
});
});
it('should be loaded', function(done) {
@ -86,6 +88,24 @@ describe('TailNode', function() {
});
});
it('tail should handle a non-existent file', function(done) {
fs.unlinkSync(fileToTail);
var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(tailNode, flow, function() {
var tailNode1 = helper.getNode("tailNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
msg.should.have.property('topic', fileToTail);
msg.payload.should.equal("Tail message line");
done();
});
setTimeout( function() {
fs.writeFileSync(fileToTail, "Tail message line\n");
},150);
});
});
it('tail should handle file truncation', function(done) {
var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
@ -99,15 +119,30 @@ describe('TailNode', function() {
});
helperNode1.on("input", function(msg) {
msg.should.have.property('topic', fileToTail);
msg.payload.should.equal("Tail message line A");
if ((++inputCounter === 3) && (warned === true)) { done(); }
inputCounter++;
if (inputCounter === 1) {
warned.should.be.false;
msg.payload.should.equal("Tail message line append");
} else if (inputCounter === 2) {
msg.payload.should.equal("Tail message line truncate");
} else {
msg.payload.should.equal("Tail message line append "+inputCounter);
}
if (inputCounter === 5) {
setTimeout(function() {
warned.should.be.true;
done();
},100);
}
});
setTimeout( function() {
fs.writeFileSync(fileToTail, "Tail message line A\n");
fs.appendFileSync(fileToTail, "Tail message line A\n");
fs.appendFileSync(fileToTail, "Tail message line A\n");
fs.appendFileSync(fileToTail, "Tail message line A\n");
},200);
fs.appendFileSync(fileToTail, "Tail message line append\n");
fs.writeFileSync(fileToTail, "Tail message line truncate\n");
fs.appendFileSync(fileToTail, "Tail message line append 3\n");
fs.appendFileSync(fileToTail, "Tail message line append 4\n");
fs.appendFileSync(fileToTail, "Tail message line append 5\n");
},150);
});
});

4
test/nodes/helper.js
View File

@ -62,7 +62,7 @@ module.exports = {
unload: function() {
// TODO: any other state to remove between tests?
redNodes.clearRegistry();
flows.stopFlows();
return flows.stopFlows();
},
getNode: function(id) {
@ -89,7 +89,7 @@ module.exports = {
});
},
//TODO consider saving TCP handshake/server reinit on start/stop/start sequences
stopServer : function(done) {
stopServer: function(done) {
if(server) {
server.close(done);
}

3
test/resources/28-tail-test-file.txt
View File

@ -1,3 +0,0 @@
Tail message line A
Tail message line A
Tail message line A