Use CTest to run Python tests

Avoid having to copy the test script by modifying PYTHONPATH at runtime,
and move the test script into the test directory.

CMakeLists.txt

@@ -106,11 +106,11 @@ add_custom_command(TARGET loot_api POST_BUILD
         "${LIBLOOT_EXTRACTED_PATH}/${LIBLOOT_SHARED_LIBRARY}"
         "$<TARGET_FILE_DIR:loot_api>/${LIBLOOT_SHARED_LIBRARY}")
 
-# Copy the test Python script to the build directory.
-add_custom_command(TARGET loot_api POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy_if_different
-        "${CMAKE_SOURCE_DIR}/src/test.py"
-        "$<TARGET_FILE_DIR:loot_api>/test.py")
+enable_testing()
+
+add_test(NAME python
+         WORKING_DIRECTORY $<TARGET_FILE_DIR:loot_api>
+         COMMAND "${PYTHON_EXECUTABLE}" ${CMAKE_SOURCE_DIR}/test/test.py)
 
 ########################################
 # Install

test/test.py

@@ -1,9 +1,14 @@
 #!/usr/bin/env python
 
 import cProfile
+import os
 import os.path
 import shutil
+import sys
 import unittest
+
+sys.path.append(os.getcwd())
+
 from loot_api import Version
 from loot_api import WrapperVersion
 from loot_api import GameType
@@ -63,7 +68,7 @@ class TestLootApi(GameFixture):
         self.assertNotEqual(db, None)
 
 class TestDatabaseInterface(GameFixture):
-    masterlist_path = u'../../test/masterlist.yaml'
+    masterlist_path = os.path.join(os.path.dirname(__file__), u'masterlist.yaml')
 
     def setUp(self):
         super(TestDatabaseInterface, self).setUp()