set test coverage collect on

Author: chupei

QiniuSDK.xcodeproj/xcshareddata/xcschemes/QiniuSDK_iOS.xcscheme

@@ -40,7 +40,8 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      codeCoverageEnabled = "YES">
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"