Add a test when the algorithm does not do projection

bob/bio/base/test/dummy/algorithm_noprojection.py

+import scipy.spatial
+import bob.io.base
+
+from bob.bio.base.algorithm import Algorithm
+
+_data = [5., 6., 7., 8., 9.]
+
+
+class DummyAlgorithm (Algorithm):
+    """This class is used to test all the possible functions of the tool chain, but it does basically nothing."""
+
+    def __init__(self, **kwargs):
+        """Generates a test value that is read and written"""
+
+        # call base class constructor registering that this tool performs everything.
+        Algorithm.__init__(
+            self,
+            performs_projection=False,
+            requires_enroller_training=True
+        )
+
+    def _test(self, file_name):
+        """Simply tests that the read data is consistent"""
+        data = bob.io.base.load(file_name)
+        assert (_data == data).all()
+
+    def train_enroller(self, train_files, enroller_file):
+        """Does not train the projector, but writes some file"""
+        # save something
+        bob.io.base.save(_data, enroller_file)
+
+    def load_enroller(self, enroller_file):
+        """Loads the test value from file and compares it with the desired one"""
+        self._test(enroller_file)
+
+    def enroll(self, enroll_features):
+        """Returns the first feature as the model"""
+        assert len(enroll_features)
+        # just return the first feature
+        return enroll_features[0]
+
+    def score(self, model, probe):
+        """Returns the Euclidean distance between model and probe"""
+        return scipy.spatial.distance.euclidean(model, probe)
+
+algorithm = DummyAlgorithm()

bob/bio/base/test/test_scripts.py

@@ -82,6 +82,25 @@ def test_verify_config():
   _verify(parameters, test_dir, 'test_config')
 
 
+def test_verify_algorithm_noprojection():
+  test_dir = tempfile.mkdtemp(prefix='bobtest_')
+  # define dummy parameters
+  parameters = [
+      '-d', os.path.join(dummy_dir, 'database.py'),
+      '-p', os.path.join(dummy_dir, 'preprocessor.py'),
+      '-e', os.path.join(dummy_dir, 'extractor.py'),
+      '-a', os.path.join(dummy_dir, 'algorithm_noprojection.py'),
+      '--zt-norm',
+      '-vs', 'algorithm_noprojection',
+      '--temp-directory', test_dir,
+      '--result-directory', test_dir
+  ]
+
+  print (bob.bio.base.tools.command_line(parameters))
+
+  _verify(parameters, test_dir, 'algorithm_noprojection')
+
+
 def test_verify_resources():
   test_dir = tempfile.mkdtemp(prefix='bobtest_')
   # define dummy parameters