diff --git a/pyblish/logic.py b/pyblish/logic.py
index ce23a623..afafe449 100644
--- a/pyblish/logic.py
+++ b/pyblish/logic.py
@@ -72,7 +72,7 @@ def process(func, plugins, context, test=None):
         A result per complete process. If test fails,
         a TestFailed exception is returned, containing the
         variables used in the test. Finally, any exception
-        thrown by `process` is yielded. Note that this is
+        thrown by `func` is yielded. Note that this is
         considered a bug in *your* code as you are the one
         supplying it.
 
@@ -130,22 +130,20 @@ def gen(plugin, instances):
                 continue
 
             for instance in gen(plugin, instances):
-                print plugin, instance
                 if instance is None and "instance" in args:
                     continue
 
-                print "Made it"
                 # Provide introspection
                 self.next_instance = instance
 
                 try:
                     result = func(plugin, context, instance)
 
-                except Exception:
-                    # If this happens, there is a bug
-                    traceback.print_exc()
-                    trace = traceback.format_exc()
-                    assert False, trace
+                except Exception as exc:
+                    # Any exception occuring within the function
+                    # you pass is yielded, you are expected to
+                    # handle it.
+                    yield exc
 
                 else:
                     # Make note of the order at which
diff --git a/tests/test_di.py b/tests/test_di.py
index 4af6048d..a34a3b8a 100644
--- a/tests/test_di.py
+++ b/tests/test_di.py
@@ -186,7 +186,6 @@ def process(self, context):
     assert_equals(count["#"], 2)
 
 
-@with_setup(lib.setup_empty, lib.teardown)
 def test_unavailable_service():
     """Asking for unavailable service throws exception"""
 
@@ -199,6 +198,21 @@ def func(arg1, arg2):
     assert_raises(KeyError, provider.invoke, func)
 
 
+def test_unavailable_service_logic():
+    """Asking for unavailable service ..?"""
+
+    class SelectUnavailable(pyblish.api.Selector):
+        def process(self, unavailable):
+            print "HHOH"
+            self.log.critical("Test")
+
+    for result in pyblish.logic.process(
+            func=pyblish.plugin.process,
+            plugins=[SelectUnavailable],
+            context=pyblish.api.Context()):
+        assert_true(isinstance(result["error"], KeyError))
+
+
 @with_setup(lib.setup_empty, lib.teardown)
 def test_test_failure():
     """Failing the test yields an exception"""
@@ -226,8 +240,8 @@ def process(self, context):
         context=context))
 
     assert_equals(len(triggered), 1)
-    assert type(triggered[0]) == ValidateFailure
-    assert isinstance(results[-1], Exception)
+    assert_equals(type(triggered[0]), ValidateFailure)
+    assert_true(isinstance(results[-1], Exception))
 
 
 @with_setup(lib.setup_empty, lib.teardown)
@@ -314,3 +328,39 @@ def process(self, asset):
         print result
 
     assert_equals(count["#"], 3)
+
+
+@with_setup(lib.setup_empty, lib.teardown)
+def test_di_testing():
+    """DI simplifies testing"""
+
+    instances = list()
+
+    class SelectCharacters(pyblish.api.Validator):
+        def process(self, context, host):
+            for char in host.ls("*_char"):
+                instance = context.create_instance(char, family="character")
+                instance.add(host.listRelatives(char))
+                instances.append(instance.name)
+
+    class HostMock(object):
+        def ls(self, query):
+            return ["bobby_char", "rocket_char"]
+
+        def listRelatives(self, node):
+            if node == "bobby_char":
+                return ["arm", "leg"]
+            if node == "rocket_char":
+                return ["propeller"]
+            return []
+
+    pyblish.api.register_service("host", HostMock())
+
+    for result in pyblish.logic.process(
+            func=pyblish.plugin.process,
+            plugins=[SelectCharacters],
+            context=pyblish.api.Context()):
+        assert_equals(result["error"], None)
+
+    assert_equals(len(instances), 2)
+    assert_equals(instances, ["bobby_char", "rocket_char"])
\ No newline at end of file
diff --git a/tests/test_logic.py b/tests/test_logic.py
index 710c42f2..93b8500b 100644
--- a/tests/test_logic.py
+++ b/tests/test_logic.py
@@ -159,15 +159,15 @@ def process(self, context):
             count["#"] += 1
 
     context = pyblish.api.Context()
-    # for result in pyblish.logic.process(
-    #         func=pyblish.plugin.process,
-    #         plugins=[SelectMany, ValidateContext],
-    #         context=context):
-    #     pass
+    for result in pyblish.logic.process(
+            func=pyblish.plugin.process,
+            plugins=[SelectMany, ValidateContext],
+            context=context):
+        pass
 
-    # assert_equals(count["#"], 1)
+    assert_equals(count["#"], 1)
 
-    # count["#"] = 0
+    count["#"] = 0
 
     # When families are wildcard, it does process
     class ValidateContext(pyblish.api.Validator):