[update]for coverage.

.travis.yml

@@ -0,0 +1,15 @@
+language: objective-c
+osx_image: xcode7.1
+branches:
+  only:
+    - master
+env:
+  matrix:
+    - DESTINATION="OS=9.1,name=iPad 2"
+before_install:
+  - gem install xcpretty
+script:
+  - xcodebuild -version
+  - xcodebuild -project CountdownLabelExample/CountdownLabelExample.xcodeproj -scheme CountdownLabelTests -sdk iphonesimulator -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=YES GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES GCC_GENERATE_TEST_COVERAGE_FILES=YES test | xcpretty -c 
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

CountdownLabel.xcodeproj/xcshareddata/xcschemes/CountdownLabel.xcscheme

@@ -20,6 +20,20 @@
                ReferencedContainer = "container:CountdownLabel.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "NO"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8999B51A1C4F2F7200C46F10"
+               BuildableName = "CountdownLabelTests.xctest"
+               BlueprintName = "CountdownLabelTests"
+               ReferencedContainer = "container:CountdownLabel.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
    <TestAction
@@ -29,6 +43,15 @@
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "892106CF1C3CF4140007CDEC"
+            BuildableName = "CountdownLabel.framework"
+            BlueprintName = "CountdownLabel"
+            ReferencedContainer = "container:CountdownLabel.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>

CountdownLabel.xcodeproj/xcshareddata/xcschemes/CountdownLabelTests.xcscheme

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0720"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      codeCoverageEnabled = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "8999B51A1C4F2F7200C46F10"
+               BuildableName = "CountdownLabelTests.xctest"
+               BlueprintName = "CountdownLabelTests"
+               ReferencedContainer = "container:CountdownLabel.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>