initial commit

server/node_modules/lru-memoizer/test/lru-memoizer.sync.test.js

@@ -0,0 +1,47 @@
+var memoizer = require('./..');
+var assert = require('chai').assert;
+
+describe('lru-memoizer sync', function () {
+  var loadTimes = 0, memoized;
+
+  beforeEach(function () {
+    loadTimes = 0;
+
+    memoized = memoizer.sync({
+      load: function (a, b) {
+        loadTimes++;
+        if (a === 0) {
+          throw new Error('a cant be 0');
+        }
+        return a + b;
+      },
+      hash: function (a, b) {
+        return a + '-' + b;
+      },
+      max: 10
+    });
+  });
+
+  it('should cache the result of an async function', function () {
+    var result = memoized(1, 2);
+    assert.equal(result, 3);
+    assert.equal(loadTimes, 1);
+
+    var result2 = memoized(1,2);
+    assert.equal(result2, 3);
+    assert.equal(loadTimes, 1);
+  });
+
+  it('shuld use the hash function for keys', function () {
+    memoized(1, 2);
+    memoized(2, 3);
+    assert.includeMembers(memoized.keys(), ['1-2', '2-3']);
+  });
+
+  it('should not cache errored funcs', function () {
+    try {
+      memoized(0, 2);
+    } catch(err) {}
+    assert.notInclude(memoized.keys(), ['0-2']);
+  });
+});