initial commit

data-structures/tests/linked-lists.js

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+import chai from 'chai';
+import {Node, List} from '../linked-lists';
+
+chai.should();
+
+test('Constructing new Lists', () => {
+  let list = new List(new Node(10, new Node(5)));
+
+  list.root.value.should.equal(10);
+  list.root.next.value.should.equal(5);
+});

data-structures/tests/trie.js

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+import chai from 'chai';
+import {Node, Trie} from '../trie';
+
+chai.should();
+
+test('Construct new Trie', () => {
+  let trie = new Trie();
+
+  trie.root.children.length.should.equal(0);
+});
+
+test('Add new parent values', () => {
+  let trie = new Trie();
+
+  trie.add('a');
+  trie.add('b');
+  trie.add('c');
+  trie.add('t');
+
+  trie.root.children.length.should.equal(4);
+});
+
+test('Adding values with existing parents', () => {
+  let trie = new Trie();
+
+  trie.add('a');
+  trie.add('ab');
+  trie.add('aba');
+  trie.add('abas');
+
+  let parent = trie.root;
+  for (let i = 0; i < 3; i++) {
+    parent.children.length.should.equal(1);
+    parent = parent.children[0];
+  }
+
+  parent.children.length.should.equal(0);
+});