add tests and documentation

Source/SpeedLog.swift

@@ -10,6 +10,7 @@ import Foundation
 
 typealias SLog = SpeedLog
 
+///LogMode type. Specify what details should be included to the log
 public struct LogMode : OptionSetType {
 
   private var value: UInt = 0
@@ -31,9 +32,10 @@ public struct LogMode : OptionSetType {
   public static var AllOptions: LogMode  { return [FileName, FuncName, Line] }
 }
 
+///SpeedLog Type
 public struct SpeedLog {
-
-  public static var mode: LogMode = LogMode.None
+  /// Log Mode
+  public static var mode: LogMode = .None
 
   public static func print(items: Any..., separator: String = " ", terminator: String = "\n", _ file: String = __FILE__, _ function: String = __FUNCTION__, _ line: Int = __LINE__) {
     #if ENABLE_LOG
@@ -44,11 +46,10 @@ public struct SpeedLog {
   }
 }
 
-private extension SpeedLog {
+extension SpeedLog {
 
   static func printStringForMode(file: String, function: String, line: Int) -> String {
     var result: String = ""
-    //print("\(filename).\(function)[\(line)]: \(object)")
     if mode.contains(.FileName) {
       let filename = file.lastPathComponent.stringByDeletingPathExtension
       result = "\(filename)."
@@ -68,6 +69,7 @@ private extension SpeedLog {
   }
 }
 
+/// String syntax sugar extension
 extension String {
     var ns: NSString {
         return self as NSString

Tests/SpeedLogTests.swift

@@ -11,19 +11,35 @@ import XCTest
 
 class SpeedLogTests: XCTestCase {
 
-  override func setUp() {
-    super.setUp()
-    // Put setup code here. This method is called before the invocation of each test method in the class.
+  func testEmptyPrefix() {
+    let prefix = logForMode(.None)
+    XCTAssertEqual(prefix, "")
   }
 
-  override func tearDown() {
-    // Put teardown code here. This method is called after the invocation of each test method in the class.
-    super.tearDown()
+  func testFilePrefix() {
+    let prefix = logForMode(.FileName)
+    XCTAssertEqual(prefix, "File.: ")
+    //FIXME: remove "." from string
   }
 
-  func testExample() {
-    // This is an example of a functional test case.
-    // Use XCTAssert and related functions to verify your tests produce the correct results.
+  func testFuncPrefix() {
+    let prefix = logForMode(.FuncName)
+    XCTAssertEqual(prefix, "FuncA: ")
   }
 
+  func testLinePrefix() {
+    let prefix = logForMode(.Line)
+    XCTAssertEqual(prefix, "[\(10)]: ")
+  }
 }
+
+// MARK: - Helpers
+extension SpeedLogTests {
+
+  func logForMode(mode: LogMode) -> String {
+    SpeedLog.mode = mode
+    return SpeedLog.printStringForMode("File", function: "FuncA", line: 10)
+  }
+}
+
+