title: xcodebuild test not running XCTestCase unit test file
body: <p>Not able to run the unit test file using <code>xcodebuild test -scheme DollarTests -project Dollar.xcodeproj -configuration Debug -sdk macosx</code></p>
  
  <p>Below is the output of the command</p>
  
  <pre><code>xcodebuild test -scheme DollarTests -project Dollar.xcodeproj -configuration Debug -sdk macosx
  Build settings from command line:
      SDKROOT = macosx10.9
  
  2014-06-14 16:43:29.537 xcodebuild[3504:92734] stream error: stream error at offset 29: created by an unsupported XCDependencyGraph build
  2014-06-14 16:43:29.540 xcodebuild[3504:92735] stream error: stream error at offset 29: created by an unsupported XCDependencyGraph build
  === BUILD TARGET Dollar OF PROJECT Dollar WITH CONFIGURATION Debug ===
  
  Check dependencies
  warning: no rule to process file '/Users/ankur/Personal/Dollar/Dollar/Dollar.swift' of type text for architecture x86_64
  OS X deployment target '10.10' for architecture 'x86_64' and variant 'normal' is greater than the maximum value '10.9' for the OS X 10.9 SDK.
  
  === BUILD TARGET DollarTests OF PROJECT Dollar WITH CONFIGURATION Debug ===
  
  Check dependencies
  warning: no rule to process file '/Users/ankur/Personal/Dollar/DollarTests/DollarTests.swift' of type text for architecture x86_64
  warning: no rule to process file '/Users/ankur/Personal/Dollar/DollarTests/CarExample.swift' of type text for architecture x86_64
  OS X deployment target '10.10' for architecture 'x86_64' and variant 'normal' is greater than the maximum value '10.9' for the OS X 10.9 SDK.
  
  Test Suite 'All tests' started at 2014-06-14 20:43:30 +0000
  Test Suite 'All tests' finished at 2014-06-14 20:43:30 +0000.
  Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.001) seconds
  ** TEST SUCCEEDED **
  </code></pre>
  
  <p>For some reason it is not able to pick up the XCTestCase files and I get the following warning</p>
  
  <pre><code>warning: no rule to process file '/Users/ankur/Personal/Dollar/DollarTests/DollarTests.swift' of type text for architecture x86_64
  warning: no rule to process file '/Users/ankur/Personal/Dollar/DollarTests/CarExample.swift' of type text for architecture x86_64
  </code></pre>
  
  <p>The test files are in Swift, so it that the issue and how can I resolve it to include these and run these file when running test.</p>
  
  <p>Attaching screenshots of the configuration and files I have in the project</p>
  
  <p><img src="https://i.stack.imgur.com/hlnDG.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/4zj9b.png" alt="enter image description here"></p>