public void CalculateCorrelationUsingValidValues_returnsExpected() { ITweetProvider tweetProvider = new InMemoryTweetProvider(); IStockProvider stockProvider = new InMemoryStockProvider(); AnalysisEngine engine = new AnalysisEngine(tweetProvider, stockProvider); float expected = 1.0F; var actual = engine.CalculateCorrelation("TEST"); Assert.AreEqual(expected, actual); }