     // MARK: - String Extensions tests
     
     func testTrueEmailAddress() {
-		let validEmails = ["email@example.com", "firstname.lastname@example.com", "email@subdomain.example.com", "firstname+lastname@example.com", "1234567890@example.com", "email@example-one.com", "_______@example.com", "email@example.name", "email@example.museum", "email@example.co.jp", "firstname-lastname@example.com"]
-		for emailAddress in validEmails {
-			XCTAssertTrue(emailAddress.isValidEmailAddress(), "the email address: \(emailAddress) was considered invalid, but it is not")
-		}
+        let validEmails = ["email@example.com", "firstname.lastname@example.com", "email@subdomain.example.com", "firstname+lastname@example.com", "1234567890@example.com", "email@example-one.com", "_______@example.com", "email@example.name", "email@example.museum", "email@example.co.jp", "firstname-lastname@example.com"]
+        for emailAddress in validEmails {
+            XCTAssertTrue(emailAddress.isValidEmailAddress(), "the email address: \(emailAddress) was considered invalid, but it is not")
+        }
     }
     
     func testFalseEmailAddress() {
-		let invalidEmails = ["plainaddress", "#@%^%#$@#$@#.com", "@example.com", "Joe Smith <email@example.com>", "email.example.com", "email@example@example.com", ".email@example.com", "email.@example.com", "email..email@example.com", "あいうえお@example.com", "email@example.com (Joe Smith)", "email@example", "email@-example.com", "email@example..com", "Abc..123@example.com"]
-		for emailAddress in invalidEmails {
-			XCTAssertFalse(emailAddress.isValidEmailAddress(), "the email address: \(emailAddress) was considered valid, but it is not")
-		}
+        let invalidEmails = ["plainaddress", "#@%^%#$@#$@#.com", "@example.com", "Joe Smith <email@example.com>", "email.example.com", "email@example@example.com", ".email@example.com", "email.@example.com", "email..email@example.com", "あいうえお@example.com", "email@example.com (Joe Smith)", "email@example", "email@-example.com", "email@example..com", "Abc..123@example.com"]
+        for emailAddress in invalidEmails {
+            XCTAssertFalse(emailAddress.isValidEmailAddress(), "the email address: \(emailAddress) was considered valid, but it is not")
+        }
     }
     
     func testRange() {

        let range = str.rangeFromString("e", toString: " w")
        XCTAssertTrue(range?.startIndex == str.startIndex.advancedBy(1) && range?.endIndex == str.startIndex.advancedBy(7), "range = \(range)")
    }
	
	
	// MARK: - CGRect Extensions tests
	
	func testX() {
		var rect = CGRect(x: 10, y: 10, width: 100, height: 100)
		XCTAssertEqual(rect.x, rect.origin.x)
		
		rect.x = 20
		XCTAssertEqual(rect.origin.x, 20)
	}
	
	func testY() {
		var rect = CGRect(x: 10, y: 10, width: 100, height: 100)
		XCTAssertEqual(rect.y, rect.origin.y)
		
		rect.y = 20
		XCTAssertEqual(rect.origin.y, 20)
	}
	
	func testReversingSize() {
		let rect = CGRect(x: 10, y: 10, width: 100, height: 200)
		let reversedRect = rect.rectByReversingSize()
		XCTAssertTrue(rect.size.height == reversedRect.size.width && rect.size.width == reversedRect.size.height)
	}
    
    // MARK: - CGPoint extension tests
    

        XCTAssertTrue((point1/scalar2).x == point1.x / scalar2 && (point1/scalar2).y == point1.y / scalar2)
        
    }
    
    // MARK: - Then test
    func testThen() {
        let view = UIView().then {
            $0.backgroundColor = UIColor.blackColor()
            $0.alpha = 0.5
        }
        
        XCTAssertEqual(view.alpha, 0.5)
        XCTAssertEqual(view.backgroundColor, UIColor.blackColor())
    }
}
