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/*
* provider-test.js: Tests for the nconf Provider object.
*
* (C) 2011, Charlie Robbins and the Contributors.
*
*/
var assert = require('assert'),
fs = require('fs'),
path = require('path'),
vows = require('vows'),
helpers = require('./helpers'),
nconf = require('../lib/nconf');
var fixturesDir = path.join(__dirname, 'fixtures'),
mergeFixtures = path.join(fixturesDir, 'merge'),
files = [path.join(mergeFixtures, 'file1.json'), path.join(mergeFixtures, 'file2.json')],
override = JSON.parse(fs.readFileSync(files[0]), 'utf8');
function assertProvider(test) {
return {
topic: new nconf.Provider(),
"should use the correct File store": test
};
}
vows.describe('nconf/provider').addBatch({
"When using nconf": {
"an instance of 'nconf.Provider'": {
"calling the use() method with the same store type and different options": {
topic: new nconf.Provider().use('file', { file: files[0] }),
"should use a new instance of the store type": function (provider) {
var old = provider.stores['file'];
assert.equal(provider.stores.file.file, files[0]);
provider.use('file', { file: files[1] });
assert.notStrictEqual(old, provider.stores.file);
assert.equal(provider.stores.file.file, files[1]);
}
},
"when 'argv' is true": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'provider-argv.js'),
argv: ['--something', 'foobar']
}),
"when 'env' is true": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'provider-env.js'),
env: { SOMETHING: 'foobar' }
}),
"when 'env' is true and 'parseValues' option is true": {
topic: function() {
var env = {
SOMETHING: 'foobar',
SOMEBOOL: 'true',
SOMENULL: 'null',
SOMEUNDEF: 'undefined',
SOMEINT: '3600',
SOMEFLOAT: '0.5',
SOMEBAD: '5.1a'
};
var oenv = {};
Object.keys(env).forEach(function (key) {
if (process.env[key]) oenv[key] = process.env[key];
process.env[key] = env[key];
});
var provider = new nconf.Provider().use('env', {parseValues: true});
Object.keys(env).forEach(function (key) {
delete process.env[key];
if (oenv[key]) process.env[key] = oenv[key];
});
return provider;
},
"should respond with parsed values": function (provider) {
assert.equal(provider.get('SOMETHING'), 'foobar');
assert.strictEqual(provider.get('SOMEBOOL'), true);
assert.notEqual(provider.get('SOMEBOOL'), 'true');
assert.strictEqual(provider.get('SOMENULL'), null);
assert.strictEqual(provider.get('SOMEUNDEF'), undefined);
assert.strictEqual(provider.get('SOMEINT'), 3600);
assert.strictEqual(provider.get('SOMEFLOAT'), .5);
assert.strictEqual(provider.get('SOMEBAD'), '5.1a');
}
}
},
"the default nconf provider": {
"when 'argv' is set to true": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'nconf-argv.js'),
argv: ['--something', 'foobar'],
env: { SOMETHING: true }
}),
"when 'env' is set to true": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'nconf-env.js'),
env: { SOMETHING: 'foobar' }
}),
"when 'argv' is set to true and process.argv is modified": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'nconf-change-argv.js'),
argv: ['--something', 'badValue', 'evenWorse', 'OHNOEZ', 'foobar']
}),
"when hierarchical 'argv' get": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'nconf-hierarchical-file-argv.js'),
argv: ['--something', 'foobar'],
env: { SOMETHING: true }
}),
"when 'env' is set to true with a nested separator": helpers.assertSystemConf({
script: path.join(fixturesDir, 'scripts', 'nconf-nested-env.js'),
env: { SOME_THING: 'foobar' }
})
}
}
}).addBatch({
"When using nconf": {
"an instance of 'nconf.Provider'": {
"the merge() method": {
topic: new nconf.Provider().use('file', { file: files[1] }),
"should have the result merged in": function (provider) {
provider.load();
provider.merge(override);
helpers.assertMerged(null, provider.stores.file.store);
assert.equal(provider.stores.file.store.candy.something, 'file1');
},
"should merge Objects over null": function (provider) {
provider.load();
provider.merge(override);
assert.equal(provider.stores.file.store.unicorn.exists, true);
}
}
}
}
}).addBatch({
"When using nconf": {
"an instance of 'nconf.Provider'": {
"the load() method": {
"when sources are passed in": {
topic: new nconf.Provider({
sources: {
user: {
type: 'file',
file: files[0]
},
global: {
type: 'file',
file: files[1]
}
}
}),
"should respect the hierarchy ": function (provider) {
var merged = provider.load();
helpers.assertMerged(null, merged);
assert.equal(merged.candy.something, 'file1');
}
},
"when multiple stores are used": {
topic: new nconf.Provider().overrides({foo: {bar: 'baz'}})
.add('file1', {type: 'file', file: files[0]})
.add('file2', {type: 'file', file: files[1]}),
"should respect the hierarchy": function(provider) {
var merged = provider.load();
helpers.assertMerged(null, merged);
assert.equal(merged.foo.bar, 'baz');
assert.equal(merged.candy.something, 'file1');
}
}
}
}
}
}).addBatch({
"When using nconf": {
"an instance of 'nconf.Provider'": {
"the .file() method": {
"with a single filepath": assertProvider(function (provider) {
provider.file(helpers.fixture('store.json'));
assert.isObject(provider.stores.file);
}),
"with a name and a filepath": assertProvider(function (provider) {
provider.file('custom', helpers.fixture('store.json'));
assert.isObject(provider.stores.custom);
}),
"with a single object": assertProvider(function (provider) {
provider.file({
dir: helpers.fixture(''),
file: 'store.json',
search: true
});
assert.isObject(provider.stores.file);
assert.equal(provider.stores.file.file, helpers.fixture('store.json'));
}),
"with a name and an object": assertProvider(function (provider) {
provider.file('custom', {
dir: helpers.fixture(''),
file: 'store.json',
search: true
});
assert.isObject(provider.stores.custom);
assert.equal(provider.stores.custom.file, helpers.fixture('store.json'));
})
}
}
}
}).addBatch({
"When using nconf": {
"an instance of 'nconf.Provider'": {
"the any() method": {
topic: new nconf.Provider({
type: 'literal',
store: {
key: "getThisValue"
}
}),
"without a callback": {
"given an array of keys with one matching": {
"should respond with the correct value": function (provider) {
assert.equal(provider.any(["notthis", "orthis", "key"]), 'getThisValue');
}
},
"given an array of keys with no match": {
"should respond with null": function (provider) {
assert.isNull(provider.any(["notthis", "orthis"]));
}
},
"given a variable argument list of keys with one matching": {
"should respond with the correct value": function (provider) {
assert.equal(provider.any("notthis", "orthis", "key"), 'getThisValue');
}
},
"given no arguments": {
"should respond with null": function (provider) {
assert.isNull(provider.any());
}
}
},
"with a callback": {
"given an array of keys with one matching": {
topic: function(provider) {
provider.any(["notthis", "orthis", "key"], this.callback);
},
"should respond with the correct value": function (err, value) {
assert.equal(value, 'getThisValue');
}
},
"given an array of keys with no match": {
topic: function(provider) {
provider.any(["notthis", "orthis"], this.callback);
},
"should respond with an undefined value": function (err, value) {
assert.isUndefined(value);
}
},
"given a variable argument list of keys with one matching": {
topic: function(provider) {
provider.any("notthis", "orthis", "key", this.callback);
},
"should respond with the correct value": function (err, value) {
assert.equal(value, 'getThisValue');
}
},
"given no keys": {
topic: function(provider) {
provider.any(this.callback);
},
"should respond with an undefined value": function (err, value) {
assert.isUndefined(value);
}
}
}
}
}
}
}).export(module);
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