First attempt at dispatch async testing

Codemine.xcodeproj/project.pbxproj

@@ -59,6 +59,7 @@
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 		291272CF1C75F32200FB1BBD /* Operators.swift in Sources */ = {isa = PBXBuildFile; fileRef = 291272CE1C75F32200FB1BBD /* Operators.swift */; };
+		291D23001E0425BF003E1210 /* DispatchTimeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 291D22FF1E0425BF003E1210 /* DispatchTimeTests.swift */; };
 		293490EE1C6CAFD500E8305E /* Application.swift in Sources */ = {isa = PBXBuildFile; fileRef = 293490ED1C6CAFD500E8305E /* Application.swift */; };
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@@ -123,6 +124,7 @@
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 		291272CE1C75F32200FB1BBD /* Operators.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Operators.swift; sourceTree = "<group>"; };
+		291D22FF1E0425BF003E1210 /* DispatchTimeTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DispatchTimeTests.swift; sourceTree = "<group>"; };
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@@ -231,6 +233,7 @@
 				275BCAAE1C57D1B500FF3647 /* CodemineTests.swift */,
 				83A5BEBB1D981F3500C74312 /* UIImageTests.swift */,
 				83A5BEC81D98249500C74312 /* URLImageAssetSizeTests.swift */,
+				291D22FF1E0425BF003E1210 /* DispatchTimeTests.swift */,
 			);
 			path = CodemineTests;
 			sourceTree = "<group>";
@@ -649,6 +652,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				291D23001E0425BF003E1210 /* DispatchTimeTests.swift in Sources */,
 				83A5BEC91D98249500C74312 /* URLImageAssetSizeTests.swift in Sources */,
 				275BCAAF1C57D1B500FF3647 /* CodemineTests.swift in Sources */,
 				83A5BEBC1D981F3500C74312 /* UIImageTests.swift in Sources */,

CodemineTests/DispatchTimeTests.swift

@@ -0,0 +1,28 @@
+//
+//  DispatchTimeTests.swift
+//  Codemine
+//
+//  Created by Marius Constantinescu on 16/12/2016.
+//  Copyright © 2016 Nodes. All rights reserved.
+//
+
+import XCTest
+
+class DispatchTimeTests: XCTestCase {
+
+    override func setUp() {
+        super.setUp()
+    }
+
+    func testAfterDispatchTime() {
+        let expectation = self.expectation(description: "The duration should be 3.2 seconds")
+
+        DispatchQueue.main.asyncAfter(deadline: 3.2) {
+            expectation.fulfill()
+        }
+
+        waitForExpectations(timeout: 3.2 + 0.005, handler: nil)
+
+    }
+
+}