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test_trie.js
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test_trie.js
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// jshint node: true
"use strict";
var assert = require('assert');
var http = require('http');
var util = require('../lib/testutil');
var URLTrie = require('../lib/trie').URLTrie;
var port = 8902;
var api_port = port + 1;
var proxy;
var api_url = "http://127.0.0.1:" + api_port + '/api/routes';
exports.setUp = function(callback) {
proxy = util.setup_proxy(port, callback);
};
exports.tearDown = util.teardown_servers;
var full_trie = function () {
// return a simple trie for testing
var trie = new URLTrie();
var paths = [
'/1',
'/2',
'/a/b/c/d',
'/a/b/d',
'/a/b/e',
'/b/c',
'/b/c/d',
];
for (var i=0; i < paths.length; i++) {
var path = paths[i];
trie.add(path, {path: path});
}
return trie;
};
exports.test_trie_init = function (test) {
var trie = new URLTrie();
test.equal(trie.prefix, '');
test.equal(trie.size, 0);
test.equal(trie.data, undefined);
test.deepEqual(trie.branches, {});
trie = new URLTrie('/foo');
test.equal(trie.size, 0);
test.equal(trie.prefix, '/foo');
test.deepEqual(trie.data, undefined);
test.deepEqual(trie.branches, {});
test.done();
};
exports.test_trie_add = function (test) {
var trie = new URLTrie();
trie.add('foo', 1);
test.equal(trie.size, 1);
test.equal(trie.data, undefined);
test.equal(trie.branches.foo.data, 1);
test.equal(trie.branches.foo.size, 0);
trie.add('bar/leaf', 2);
test.equal(trie.size, 2);
var bar = trie.branches.bar;
test.equal(bar.prefix, '/bar');
test.equal(bar.size, 1);
test.equal(bar.branches.leaf.data, 2);
trie.add('/a/b/c/d', 4);
test.equal(trie.size, 3);
var a = trie.branches.a;
test.equal(a.prefix, '/a');
test.equal(a.size, 1);
test.deepEqual(a.data, undefined);
var b = a.branches.b;
test.equal(b.prefix, '/a/b');
test.equal(b.size, 1);
test.equal(b.data, undefined);
var c = b.branches.c;
test.equal(c.prefix, '/a/b/c');
test.equal(c.size, 1);
test.deepEqual(c.data, undefined);
var d = c.branches.d;
test.equal(d.prefix, '/a/b/c/d');
test.equal(d.size, 0);
test.equal(d.data, 4);
test.done();
};
exports.test_trie_get = function (test) {
var trie = full_trie();
test.equal(trie.get('/not/found'), undefined);
var node = trie.get('/1');
test.equal(node.prefix, '/1');
test.equal(node.data.path, '/1');
node = trie.get('/1/etc/etc/');
test.ok(node);
test.equal(node.prefix, '/1');
test.equal(node.data.path, '/1');
test.deepEqual(trie.get('/a'), undefined);
test.deepEqual(trie.get('/a/b/c'), undefined);
node = trie.get('/a/b/c/d/e/f');
test.ok(node);
test.equal(node.prefix, '/a/b/c/d');
test.equal(node.data.path, '/a/b/c/d');
node = trie.get('/b/c/d/word');
test.ok(node);
test.equal(node.prefix, '/b/c/d');
test.equal(node.data.path, '/b/c/d');
node = trie.get('/b/c/dword');
test.ok(node);
test.equal(node.prefix, '/b/c');
test.equal(node.data.path, '/b/c');
test.done();
};
exports.test_trie_remove = function (test) {
var trie = full_trie();
var size = trie.size;
trie.remove('/b');
test.equal(trie.size, size - 1);
test.equal(trie.get('/b/c/dword'), undefined);
var node = trie.get('/a/b/c/d/word');
test.equal(node.prefix, '/a/b/c/d');
var b = trie.branches.a.branches.b;
test.equal(b.size, 3);
trie.remove('/a/b/c/d');
test.equal(b.size, 2);
test.equal(b.branches.c, undefined);
test.done();
};