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Adding registry node load tests

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This commit is contained in:
zobalogh 2014-07-30 18:07:20 +01:00
parent 530a1fce81
commit d9544e4ac5
2 changed files with 136 additions and 5 deletions
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14
red/nodes/registry.js
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@ -63,6 +63,7 @@ function getNodeFiles(dir) {
/**
* Scans the node_modules path for nodes
* @param moduleName the name of the module to be found
* @return a list of node modules: {dir,package}
*/
function scanTreeForNodesModules(moduleName) {
@ -230,13 +231,21 @@ function init(_settings) {
/**
* Loads all palette nodes
* @param defaultNodesDir optional parameter, when set, it overrides the default location
* of nodeFiles
* @return a promise that resolves to a list of any errors encountered loading nodes
*/
function load() {
function load(defaultNodesDir) {
return when.promise(function(resolve,reject) {
// Find all of the nodes to load
var nodeFiles = getNodeFiles(__dirname+"/../../nodes");
var nodeFiles;
if(defaultNodesDir) {
nodeFiles = getNodeFiles(path.resolve(defaultNodesDir));
} else {
nodeFiles = getNodeFiles(__dirname+"/../../nodes");
}
if (settings.nodesDir) {
var dir = settings.nodesDir;
if (typeof settings.nodesDir == "string") {
@ -320,4 +329,3 @@ module.exports = {
}
}

127
test/red/nodes/registry_spec.js
View File

@ -29,6 +29,129 @@ describe('NodeRegistry', function() {
should.strictEqual(n,newNode);
});
})
});
describe('NodeRegistry', function() {
it('does not accept incorrect nodesDir',function(done) {
var typeRegistry = require("../../../red/nodes/registry");
var settings = {
nodesDir : "wontexist"
}
typeRegistry.init(null);
typeRegistry.load().then(function(){
try {
should.fail(null, null, "Loading of non-existing nodesDir should never succeed");
} catch (err) {
done(err);
}
}).catch(function(e) { // successful test, failed promise
done();
});
});
it('fails to load additional node files from invalid nodesDir',function(done) {
var typeRegistry = require("../../../red/nodes/registry");
var settings = {
nodesDir : "wontexist"
}
typeRegistry.init(settings);
typeRegistry.load().then(function(){
try {
should.fail(null, null, "Loading of non-existing nodesDir should never succeed");
} catch (err) {
done(err);
}
}).catch(function(e) { // successful test, failed promise
done();
});
});
});
/*
* This test does the following:
* 1) injects settings that tell the registry to load its default nodes from
* tempNoNodesContainedDir that contains no valid nodes => this means that no default nodes are loaded
* 2) We only load a single node we pre-deploy into tempDir
* 3) This node (fakeNodeJS = reads "fake Node JavaScript"), when exported automatically creates a known
* file
* 4) We can assert that this file exists and make the loading test pass/fail
*/
describe("getNodeFiles", function() {
var fs = require('fs-extra');
var path = require('path');
var tempDir = path.join(__dirname,".tmp/");
var fakeNodeJS = tempDir + "testNode.js"; // when exported, this fake node creates a file we can assert on
var nodeInjectedFileName = "testInjected";
var nodeInjectedFilePath = path.join(tempDir, nodeInjectedFileName);
var tempNoNodesContainedDir = path.join(__dirname,".noNodes/");
beforeEach(function(done) {
fs.remove(tempDir,function(err) {
fs.mkdirSync(tempDir);
var fileContents = "var fs = require('fs');\n" +
"var path = require('path');\n" +
"var tempFile = path.join(__dirname, \"" + nodeInjectedFileName + "\");\n" +
"\n" +
"module.exports = function(RED) {\n" +
" fs.writeFileSync(tempFile, \"Test passes if this file has been written.\");\n" +
"}\n";
fs.writeFileSync(fakeNodeJS, fileContents);
fs.remove(tempNoNodesContainedDir,function(err) {
fs.mkdirSync(tempNoNodesContainedDir);
done();
});
});
});
afterEach(function(done) {
fs.exists(tempNoNodesContainedDir, function(exists) {
if(exists) {
fs.removeSync(tempNoNodesContainedDir);
}
});
fs.exists(nodeInjectedFilePath, function(exists) {
if(exists) {
fs.unlinkSync(nodeInjectedFilePath);
}
});
fs.exists(fakeNodeJS, function(exists) {
if(exists) {
fs.unlinkSync(fakeNodeJS);
}
fs.remove(tempDir, done);
});
});
it('loads additional node files from specified external nodesDir',function(done) {
var typeRegistry = require("../../../red/nodes/registry");
var settings = {
nodesDir : tempDir
}
typeRegistry.init(settings);
typeRegistry.load(tempNoNodesContainedDir).then(function(){
fs.exists(nodeInjectedFilePath, function(exists) {
if(exists) {
done();
} else {
try {
should.fail(null, null, nodeInjectedFilePath + " should be created by registered test node.");
} catch(err) {
done(err)
}
}
});
}).catch(function(e) {
try {
should.fail(null, null, "Loading of nodesDir should succeed");
} catch (err) {
done(err);
}
});
});
});