Fix unit test imports.

.travis.yml

@@ -19,6 +19,8 @@ before_install:
 
   - brew install libcouchbase
 
+  - pip install mock
+
   # Install node.js
   - brew unlink node
   - brew install node

ardublocklyserver/tests/compilersettings_test.py

@@ -11,7 +11,14 @@ import os
 import unittest
 import mock
 
-from ardublocklyserver.compilersettings import ServerCompilerSettings
+try:
+    from ardublocklyserver.compilersettings import ServerCompilerSettings
+except ImportError:
+    import sys
+    file_dir = os.path.dirname(os.path.realpath(__file__))
+    package_dir = os.path.dirname(os.path.dirname(file_dir))
+    sys.path.insert(0, package_dir)
+    from ardublocklyserver.compilersettings import ServerCompilerSettings
 
 
 class ServerCompilerSettingsTestCase(unittest.TestCase):

ardublocklyserver/tests/requesthandler_test.py

@@ -11,7 +11,14 @@ import os
 import unittest
 import mock
 
-from ardublocklyserver import requesthandler
+try:
+    from ardublocklyserver import requesthandler
+except ImportError:
+    import sys
+    file_dir = os.path.dirname(os.path.realpath(__file__))
+    package_dir = os.path.dirname(os.path.dirname(file_dir))
+    sys.path.insert(0, package_dir)
+    from ardublocklyserver import requesthandler
 
 
 class BlocklyRequestHandlerTestCase(unittest.TestCase):

ardublocklyserver/tests/sketchcreator_test.py

@@ -11,8 +11,16 @@ import os
 import time
 import unittest
 
-from ardublocklyserver.sketchcreator import SketchCreator
-from ardublocklyserver.compilersettings import ServerCompilerSettings
+try:
+    from ardublocklyserver.sketchcreator import SketchCreator
+    from ardublocklyserver.compilersettings import ServerCompilerSettings
+except ImportError:
+    import sys
+    file_dir = os.path.dirname(os.path.realpath(__file__))
+    package_dir = os.path.dirname(os.path.dirname(file_dir))
+    sys.path.insert(0, package_dir)
+    from ardublocklyserver.sketchcreator import SketchCreator
+    from ardublocklyserver.compilersettings import ServerCompilerSettings
 
 
 class SketchCreatorTestCase(unittest.TestCase):

circle.yml

@@ -30,9 +30,10 @@ dependencies:
     - python --version
     - python -c "import struct; print(struct.calcsize('P') * 8)"
 
-    # Install tkinker
+    # Install tkinker and mock
     - sudo apt-get install -y python-support
     - sudo apt-get install python-tk
+    - pip install mock
 
     # Install node.js
     - curl -sL https://deb.nodesource.com/setup_0.12 | sudo bash -