Adding timing capabilities to clean memory

ConsistencyManager/ConsistencyManager.swift

@@ -68,14 +68,14 @@ public class ConsistencyManager {
     // MARK: Constants
 
     /**
-     This notification is fired whenever the asyncronous work of clean memory starts.
+     This notification is fired whenever the asynchronous work of clean memory starts.
      It's useful if you want to add timers to this work.
      Called on an internal thread.
     */
     public static let kCleanMemoryAsynchronousWorkStarted = "com.linkedin.consistencyManager.kCleanMemoryAsynchronousWorkStarted"
 
     /**
-     This notification is fired whenever the asyncronous work of clean memory finishes.
+     This notification is fired whenever the asynchronous work of clean memory finishes.
      It's useful if you want to add timers to this work.
      Called on an internal thread.
      */

ConsistencyManagerTests/MemoryWarningTests.swift

@@ -18,6 +18,8 @@ class MemoryWarningTests: ConsistencyManagerTestCase {
 
 
     func testMemoryWarning() {
+        let testStart = NSDate()
+
         NSNotificationCenter.defaultCenter().addObserverForName(ConsistencyManager.kCleanMemoryAsynchronousWorkStarted, object: nil, queue: nil) { _ in
             self.cleanMemoryStartedTimes.append(NSDate())
         }
@@ -59,5 +61,6 @@ class MemoryWarningTests: ConsistencyManagerTestCase {
         XCTAssertEqual(cleanMemoryStartedTimes.count, 1)
         XCTAssertEqual(cleanMemoryFinishedTimes.count, 1)
         XCTAssertTrue(cleanMemoryStartedTimes[0].timeIntervalSince1970 <= cleanMemoryFinishedTimes[0].timeIntervalSince1970)
+        XCTAssertTrue(testStart.timeIntervalSinceNow <= cleanMemoryStartedTimes[0].timeIntervalSince1970)
     }
 }