Now tests are skipped when one of the required packages is not available (not...

Now tests are skipped when one of the required packages is not available (not sure if this is the best solution to get the tests run on our nightlies arch linux, though).

faceverify/tests/__init__.py

@@ -54,7 +54,10 @@ class FaceVerifyExampleTest(unittest.TestCase):
 
   def test01_eigenface(self):
     # test the eigenface algorithm
-    from faceverify.eigenface import load_images, train, extract_feature
+    try:
+      from faceverify.eigenface import load_images, train, extract_feature
+    except ImportError as e:
+      raise SkipTest("Skipping the tests since importing from faceverify.eigenface raised exception '%s'"%e)
 
     if self.skip_tests:
       raise SkipTest("The 'ATNT_DATABASE_DIRECTORY' environment variable is not set, and the 'Database' directory is not found.")
@@ -95,7 +98,10 @@ class FaceVerifyExampleTest(unittest.TestCase):
 
   def test02_gabor_phase(self):
     # test the gabor phase algorithm
-    from faceverify.gabor_phase import load_images, extract_feature, ATNT_IMAGE_DIRECTORY
+    try:
+      from faceverify.gabor_phase import load_images, extract_feature, ATNT_IMAGE_DIRECTORY
+    except ImportError as e:
+      raise SkipTest("Skipping the tests since importing from faceverify.gabor_phase raised exception '%s'"%e)
 
     if self.skip_tests:
       raise SkipTest("The 'ATNT_DATABASE_DIRECTORY' environment variable is not set, and the 'Database' directory is not found.")
@@ -131,7 +137,10 @@ class FaceVerifyExampleTest(unittest.TestCase):
 
   def test03_dct_ubm(self):
     # test the UBM/GMM algorithm
-    from faceverify.dct_ubm import load_images, extract_feature, train, enroll, stats, NUMBER_OF_GAUSSIANS, ATNT_IMAGE_DIRECTORY
+    try:
+      from faceverify.dct_ubm import load_images, extract_feature, train, enroll, stats, NUMBER_OF_GAUSSIANS, ATNT_IMAGE_DIRECTORY
+    except ImportError as e:
+      raise SkipTest("Skipping the tests since importing from faceverify.dct_ubm raised exception '%s'"%e)
 
     if self.skip_tests:
       raise SkipTest("The 'ATNT_DATABASE_DIRECTORY' environment variable is not set, and the 'Database' directory is not found.")