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From mxm...@apache.org
Subject [2/8] incubator-ariatosca git commit: wip
Date Wed, 09 Aug 2017 12:06:58 GMT
http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/consumption/consumer.py
----------------------------------------------------------------------
diff --git a/aria/parser/consumption/consumer.py b/aria/parser/consumption/consumer.py
index 4f4c614..fb60d66 100644
--- a/aria/parser/consumption/consumer.py
+++ b/aria/parser/consumption/consumer.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 
+from ...orchestrator import topology
 from ...exceptions import AriaException
 from ...utils.exceptions import print_exception
 from ..validation import Issue
@@ -27,6 +28,7 @@ class Consumer(object):
     """
 
     def __init__(self, context):
+        self.topology = topology.Topology()
         self.context = context
 
     def consume(self):
@@ -73,6 +75,10 @@ class ConsumerChain(Consumer):
                     handle_exception(consumer, e)
                 else:
                     raise e
+
+            if consumer.topology.has_issues:
+                self.context.validation.extend_issues(consumer.topology.issues)
+
             if self.context.validation.has_issues:
                 break
 

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/consumption/context.py
----------------------------------------------------------------------
diff --git a/aria/parser/consumption/context.py b/aria/parser/consumption/context.py
index 6fa61f4..9164984 100644
--- a/aria/parser/consumption/context.py
+++ b/aria/parser/consumption/context.py
@@ -16,12 +16,12 @@
 import sys
 import threading
 
+from ...utils import console
 from ..validation import ValidationContext
 from ..loading import LoadingContext
 from ..reading import ReadingContext
 from ..presentation import PresentationContext
 from ..modeling import ModelingContext
-from .style import Style
 
 
 _thread_locals = threading.local()
@@ -58,12 +58,12 @@ class ConsumptionContext(object):
     def __init__(self, set_thread_local=True):
         self.args = []
         self.out = sys.stdout
-        self.style = Style()
         self.validation = ValidationContext()
         self.loading = LoadingContext()
         self.reading = ReadingContext()
         self.presentation = PresentationContext()
         self.modeling = ModelingContext()
+        self.style = console.TopologyStylizer()
 
         if set_thread_local:
             self.set_thread_local()

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/consumption/modeling.py
----------------------------------------------------------------------
diff --git a/aria/parser/consumption/modeling.py b/aria/parser/consumption/modeling.py
index 44027b9..0afd555 100644
--- a/aria/parser/consumption/modeling.py
+++ b/aria/parser/consumption/modeling.py
@@ -13,8 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from ...utils.formatting import json_dumps, yaml_dumps
 from .consumer import Consumer, ConsumerChain
+from ...utils.formatting import json_dumps, yaml_dumps
+from ... import exceptions
 
 
 class DeriveServiceTemplate(Consumer):
@@ -42,7 +43,7 @@ class CoerceServiceTemplateValues(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.template.coerce_values(True)
+        self.topology.coerce(self.context.modeling.template, report_issues=True)
 
 
 class ValidateServiceTemplate(Consumer):
@@ -51,7 +52,7 @@ class ValidateServiceTemplate(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.template.validate()
+        self.topology.validate(self.context.modeling.template)
 
 
 class ServiceTemplate(ConsumerChain):
@@ -74,7 +75,7 @@ class ServiceTemplate(ConsumerChain):
             raw = self.context.modeling.template_as_raw
             self.context.write(json_dumps(raw, indent=indent))
         else:
-            self.context.modeling.template.dump()
+            self.topology.dump(self.context.modeling.template)
 
 
 class Types(Consumer):
@@ -92,7 +93,7 @@ class Types(Consumer):
             raw = self.context.modeling.types_as_raw
             self.context.write(json_dumps(raw, indent=indent))
         else:
-            self.context.modeling.template.dump_types()
+            self.topology.dump_types(self.context, self.context.modeling.template)
 
 
 class InstantiateServiceInstance(Consumer):
@@ -105,9 +106,26 @@ class InstantiateServiceInstance(Consumer):
             self.context.validation.report('InstantiateServiceInstance consumer: missing
service '
                                            'template')
             return
-
-        self.context.modeling.template.instantiate(None, None,
-                                                   inputs=dict(self.context.modeling.inputs))
+        self.context.modeling.instance = self.topology.instantiate(
+            self.context.modeling.template,
+            inputs=dict(self.context.modeling.inputs)
+        )
+        ConsumerChain(
+            self.context,
+            (
+                CoerceServiceInstanceValues,
+                ValidateServiceInstance,
+                SatisfyRequirements,
+                CoerceServiceInstanceValues,
+                ValidateCapabilities,
+                FindHosts,
+                ConfigureOperations,
+                CoerceServiceInstanceValues
+            )).consume()
+
+        if self.context.validation.dump_issues():
+            raise exceptions.InstantiationError('Failed to instantiate service template `{0}`'
+                                                .format(self.context.modeling.template.name))
 
 
 class CoerceServiceInstanceValues(Consumer):
@@ -116,7 +134,7 @@ class CoerceServiceInstanceValues(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.coerce_values(True)
+        self.topology.coerce(self.context.modeling.instance, report_issues=True)
 
 
 class ValidateServiceInstance(Consumer):
@@ -125,7 +143,7 @@ class ValidateServiceInstance(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.validate()
+        self.topology.validate(self.context.modeling.instance)
 
 
 class SatisfyRequirements(Consumer):
@@ -134,7 +152,7 @@ class SatisfyRequirements(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.satisfy_requirements()
+        self.topology.satisfy_requirements(self.context.modeling.instance)
 
 
 class ValidateCapabilities(Consumer):
@@ -143,7 +161,7 @@ class ValidateCapabilities(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.validate_capabilities()
+        self.topology.validate_capabilities(self.context.modeling.instance)
 
 
 class FindHosts(Consumer):
@@ -152,7 +170,7 @@ class FindHosts(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.find_hosts()
+        self.topology.find_hosts(self.context.modeling.instance)
 
 
 class ConfigureOperations(Consumer):
@@ -161,7 +179,7 @@ class ConfigureOperations(Consumer):
     """
 
     def consume(self):
-        self.context.modeling.instance.configure_operations()
+        self.topology.configure_operations(self.context.modeling.instance)
 
 
 class ServiceInstance(ConsumerChain):
@@ -193,4 +211,5 @@ class ServiceInstance(ConsumerChain):
             raw = self.context.modeling.instance_as_raw
             self.context.write(json_dumps(raw, indent=indent))
         else:
-            self.context.modeling.instance.dump()
+            str_rep = self.topology.dump(self.context.modeling.instance)
+            self.context.write(str_rep)

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/consumption/style.py
----------------------------------------------------------------------
diff --git a/aria/parser/consumption/style.py b/aria/parser/consumption/style.py
deleted file mode 100644
index 1b52cd3..0000000
--- a/aria/parser/consumption/style.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from ...utils.console import Colored, indent
-from ...utils.formatting import safe_repr
-
-
-class Style(object):
-    def __init__(self, indentation=2):
-        self.indentation = indentation
-
-    @property
-    def indent(self):
-        return indent(self.indentation)
-
-    @staticmethod
-    def section(value):
-        return Colored.cyan(value, bold=True)
-
-    @staticmethod
-    def type(value):
-        return Colored.blue(value, bold=True)
-
-    @staticmethod
-    def node(value):
-        return Colored.red(value, bold=True)
-
-    @staticmethod
-    def property(value):
-        return Colored.magenta(value, bold=True)
-
-    @staticmethod
-    def literal(value):
-        return Colored.magenta(safe_repr(value))
-
-    @staticmethod
-    def meta(value):
-        return Colored.green(value)
-
-    @staticmethod
-    def required(value):
-        return Colored.white(value)

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/modeling/context.py
----------------------------------------------------------------------
diff --git a/aria/parser/modeling/context.py b/aria/parser/modeling/context.py
index 3d75617..d8a1f7a 100644
--- a/aria/parser/modeling/context.py
+++ b/aria/parser/modeling/context.py
@@ -19,6 +19,10 @@ from ...utils.collections import StrictDict, prune
 from ...utils.uuid import generate_uuid
 
 
+# See: http://www.faqs.org/rfcs/rfc1035.html
+ID_MAX_LENGTH = 63
+
+
 class IdType(object):
     LOCAL_SERIAL = 0
     """
@@ -61,7 +65,7 @@ class ModelingContext(object):
         #self.id_type = IdType.LOCAL_SERIAL
         #self.id_type = IdType.LOCAL_RANDOM
         self.id_type = IdType.UNIVERSAL_RANDOM
-        self.id_max_length = 63 # See: http://www.faqs.org/rfcs/rfc1035.html
+        self.id_max_length = ID_MAX_LENGTH
         self.inputs = StrictDict(key_class=basestring)
 
         self._serial_id_counter = itertools.count(1)

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/presentation/fields.py
----------------------------------------------------------------------
diff --git a/aria/parser/presentation/fields.py b/aria/parser/presentation/fields.py
index 959bad1..9de2f7b 100644
--- a/aria/parser/presentation/fields.py
+++ b/aria/parser/presentation/fields.py
@@ -606,7 +606,7 @@ class Field(object):
 
     def _dump_primitive_list(self, context, value):
         puts('%s:' % self.name)
-        with context.style.indent:
+        with context.style.indent():
             for primitive in value:
                 if hasattr(primitive, 'as_raw'):
                     primitive = as_raw(primitive)
@@ -635,7 +635,7 @@ class Field(object):
 
     def _dump_primitive_dict(self, context, value):
         puts('%s:' % self.name)
-        with context.style.indent:
+        with context.style.indent():
             for v in value.itervalues():
                 if hasattr(v, 'as_raw'):
                     v = as_raw(v)
@@ -654,7 +654,7 @@ class Field(object):
 
     def _dump_object(self, context, value):
         puts('%s:' % self.name)
-        with context.style.indent:
+        with context.style.indent():
             if hasattr(value, '_dump'):
                 value._dump(context)
 
@@ -669,7 +669,7 @@ class Field(object):
 
     def _dump_object_list(self, context, value):
         puts('%s:' % self.name)
-        with context.style.indent:
+        with context.style.indent():
             for v in value:
                 if hasattr(v, '_dump'):
                     v._dump(context)
@@ -685,7 +685,7 @@ class Field(object):
 
     def _dump_object_dict(self, context, value):
         puts('%s:' % self.name)
-        with context.style.indent:
+        with context.style.indent():
             for v in value.itervalues():
                 if hasattr(v, '_dump'):
                     v._dump(context)

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/presentation/presentation.py
----------------------------------------------------------------------
diff --git a/aria/parser/presentation/presentation.py b/aria/parser/presentation/presentation.py
index fb71a1e..164d9b2 100644
--- a/aria/parser/presentation/presentation.py
+++ b/aria/parser/presentation/presentation.py
@@ -142,7 +142,7 @@ class PresentationBase(HasCachedMethods):
 
         if self._name:
             puts(context.style.node(self._name))
-            with context.style.indent:
+            with context.style.indent():
                 self._dump_content(context)
         else:
             self._dump_content(context)
@@ -242,7 +242,7 @@ class AsIsPresentation(PresentationBase):
     def _dump(self, context):
         if hasattr(self._raw, '_dump'):
             puts(context.style.node(self._name))
-            with context.style.indent:
+            with context.style.indent():
                 self._raw._dump(context)
         else:
             super(AsIsPresentation, self)._dump(context)

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/reading/__init__.py
----------------------------------------------------------------------
diff --git a/aria/parser/reading/__init__.py b/aria/parser/reading/__init__.py
index 065ca56..c110585 100644
--- a/aria/parser/reading/__init__.py
+++ b/aria/parser/reading/__init__.py
@@ -24,8 +24,6 @@ Reading package.
    JinjaReader
    JsonReader
    Locator
-   deepcopy_with_locators
-   copy_locators
    RawReader
    Reader
    ReaderSource
@@ -36,7 +34,7 @@ Reading package.
 from .raw import RawReader
 from .reader import Reader
 from .yaml import YamlReader
-from .locator import (Locator, deepcopy_with_locators, copy_locators)
+from .locator import Locator
 from .json import JsonReader
 from .jinja import JinjaReader
 from .context import ReadingContext
@@ -57,8 +55,6 @@ __all__ = (
     'ReadingContext',
     'RawReader',
     'Locator',
-    'deepcopy_with_locators',
-    'copy_locators',
     'YamlReader',
     'JsonReader',
     'JinjaReader')

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/reading/locator.py
----------------------------------------------------------------------
diff --git a/aria/parser/reading/locator.py b/aria/parser/reading/locator.py
index 965164d..57b4d50 100644
--- a/aria/parser/reading/locator.py
+++ b/aria/parser/reading/locator.py
@@ -10,9 +10,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from copy import deepcopy
-
-
 from ...utils.console import puts, Colored, indent
 
 
@@ -120,35 +117,3 @@ class Locator(object):
     def __str__(self):
         # Should be in same format as Issue.locator_as_str
         return '"%s":%d:%d' % (self.location, self.line, self.column)
-
-
-def deepcopy_with_locators(value):
-    """
-    Like :func:`deepcopy`, but also copies over locators.
-    """
-
-    res = deepcopy(value)
-    copy_locators(res, value)
-    return res
-
-
-def copy_locators(target, source):
-    """
-    Copies over ``_locator`` for all elements, recursively.
-
-    Assumes that target and source have exactly the same list/dict structure.
-    """
-
-    locator = getattr(source, '_locator', None)
-    if locator is not None:
-        try:
-            setattr(target, '_locator', locator)
-        except AttributeError:
-            pass
-
-    if isinstance(target, list) and isinstance(source, list):
-        for i, _ in enumerate(target):
-            copy_locators(target[i], source[i])
-    elif isinstance(target, dict) and isinstance(source, dict):
-        for k, v in target.items():
-            copy_locators(v, source[k])

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/validation/context.py
----------------------------------------------------------------------
diff --git a/aria/parser/validation/context.py b/aria/parser/validation/context.py
index ef641bd..a245518 100644
--- a/aria/parser/validation/context.py
+++ b/aria/parser/validation/context.py
@@ -13,15 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from .issue import Issue
-from ...utils.threading import LockedList
-from ...utils.collections import FrozenList
-from ...utils.exceptions import print_exception
-from ...utils.console import puts, Colored, indent
-from ...utils.formatting import as_raw
+from . import issue
 
 
-class ValidationContext(object):
+class ValidationContext(issue.Reporter):
     """
     Validation context.
 
@@ -35,53 +30,7 @@ class ValidationContext(object):
     :vartype max_level: int
     """
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
+        super(ValidationContext, self).__init__(*args, **kwargs)
         self.allow_unknown_fields = False
         self.allow_primitive_coersion = False
-        self.max_level = Issue.ALL
-
-        self._issues = LockedList()
-
-    def report(self, message=None, exception=None, location=None, line=None,
-               column=None, locator=None, snippet=None, level=Issue.PLATFORM, issue=None):
-        if issue is None:
-            issue = Issue(message, exception, location, line, column, locator, snippet, level)
-
-        # Avoid duplicate issues
-        with self._issues:
-            for i in self._issues:
-                if str(i) == str(issue):
-                    return
-
-            self._issues.append(issue)
-
-    @property
-    def has_issues(self):
-        return len(self._issues) > 0
-
-    @property
-    def issues(self):
-        issues = [i for i in self._issues if i.level <= self.max_level]
-        issues.sort(key=lambda i: (i.level, i.location, i.line, i.column, i.message))
-        return FrozenList(issues)
-
-    @property
-    def issues_as_raw(self):
-        return [as_raw(i) for i in self.issues]
-
-    def dump_issues(self):
-        issues = self.issues
-        if issues:
-            puts(Colored.blue('Validation issues:', bold=True))
-            with indent(2):
-                for issue in issues:
-                    puts(Colored.blue(issue.heading_as_str))
-                    details = issue.details_as_str
-                    if details:
-                        with indent(3):
-                            puts(details)
-                    if issue.exception is not None:
-                        with indent(3):
-                            print_exception(issue.exception)
-            return True
-        return False

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/parser/validation/issue.py
----------------------------------------------------------------------
diff --git a/aria/parser/validation/issue.py b/aria/parser/validation/issue.py
index db8065d..11ea7f9 100644
--- a/aria/parser/validation/issue.py
+++ b/aria/parser/validation/issue.py
@@ -15,8 +15,14 @@
 
 from __future__ import absolute_import  # so we can import standard 'collections'
 
-from ...utils.collections import OrderedDict
-from ...utils.type import full_type_name
+from ...utils import (
+    collections,
+    type,
+    threading,
+    exceptions,
+    console,
+    formatting
+)
 
 
 class Issue(object):
@@ -82,14 +88,14 @@ class Issue(object):
 
     @property
     def as_raw(self):
-        return OrderedDict((
+        return collections.OrderedDict((
             ('level', self.level),
             ('message', self.message),
             ('location', self.location),
             ('line', self.line),
             ('column', self.column),
             ('snippet', self.snippet),
-            ('exception', full_type_name(self.exception) if self.exception else None)))
+            ('exception', type.full_type_name(self.exception) if self.exception else None)))
 
     @property
     def locator_as_str(self):
@@ -124,3 +130,61 @@ class Issue(object):
         if details:
             heading_str += ', ' + details
         return heading_str
+
+
+class Reporter(object):
+
+    Issue = Issue
+
+    def __init__(self, *args, **kwargs):
+        super(Reporter, self).__init__(*args, **kwargs)
+        self._issues = threading.LockedList()
+        self.max_level = self.Issue.ALL
+
+    def report(self, message=None, exception=None, location=None, line=None,
+               column=None, locator=None, snippet=None, level=Issue.PLATFORM, issue=None):
+        if issue is None:
+            issue = self.Issue(message, exception, location, line, column, locator, snippet,
level)
+
+        # Avoid duplicate issues
+        with self._issues:
+            for i in self._issues:
+                if str(i) == str(issue):
+                    return
+
+            self._issues.append(issue)
+
+    @property
+    def has_issues(self):
+        return len(self._issues) > 0
+
+    @property
+    def issues(self):
+        issues = [i for i in self._issues if i.level <= self.max_level]
+        issues.sort(key=lambda i: (i.level, i.location, i.line, i.column, i.message))
+        return collections.FrozenList(issues)
+
+    @property
+    def issues_as_raw(self):
+        return [formatting.as_raw(i) for i in self.issues]
+
+    def extend_issues(self, *issues):
+        with self._issues:
+            self._issues.extend(*issues)
+
+    def dump_issues(self):
+        issues = self.issues
+        if issues:
+            console.puts(console.Colored.blue('Validation issues:', bold=True))
+            with console.indent(2):
+                for issue in issues:
+                    console.puts(console.Colored.blue(issue.heading_as_str))
+                    details = issue.details_as_str
+                    if details:
+                        with console.indent(3):
+                            console.puts(details)
+                    if issue.exception is not None:
+                        with console.indent(3):
+                            exceptions.print_exception(issue.exception)
+            return True
+        return False

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/aria/utils/console.py
----------------------------------------------------------------------
diff --git a/aria/utils/console.py b/aria/utils/console.py
index 2f6f622..cd5d480 100644
--- a/aria/utils/console.py
+++ b/aria/utils/console.py
@@ -19,19 +19,68 @@ Abstraction API above terminal color libraries.
 
 import os
 import sys
+from StringIO import StringIO
 
 from contextlib import contextmanager
 
-from .formatting import safe_str
 from ..cli import color
+from . import formatting
 
 
 _indent_string = ''
 
 
+class TopologyStylizer(object):
+    def __init__(self, indentation=2):
+        self._str = StringIO()
+        self._indentation = indentation
+
+    def write(self, str_):
+        puts(str_, stream=self._str)
+
+    @contextmanager
+    def indent(self, indentation=None):
+        with indent(indentation or self._indentation):
+            yield
+
+    @staticmethod
+    def section(value):
+        return Colored.cyan(value, bold=True)
+
+    @staticmethod
+    def type(value):
+        return Colored.blue(value, bold=True)
+
+    @staticmethod
+    def node(value):
+        return Colored.red(value, bold=True)
+
+    @staticmethod
+    def property(value):
+        return Colored.magenta(value, bold=True)
+
+    @staticmethod
+    def literal(value):
+        return Colored.magenta(formatting.safe_repr(value))
+
+    @staticmethod
+    def required(value):
+        return Colored.white(value)
+
+    @staticmethod
+    def meta(value):
+        return Colored.green(value)
+
+    def __repr__(self):
+        return self._str.getvalue()
+
+    def __str__(self):
+        return repr(self)
+
+
 def puts(string='', newline=True, stream=sys.stdout):
     stream.write(_indent_string)
-    stream.write(safe_str(string))
+    stream.write(formatting.safe_str(string))
     if newline:
         stream.write(os.linesep)
 

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/extensions/aria_extension_tosca/simple_v1_0/modeling/__init__.py
----------------------------------------------------------------------
diff --git a/extensions/aria_extension_tosca/simple_v1_0/modeling/__init__.py b/extensions/aria_extension_tosca/simple_v1_0/modeling/__init__.py
index 2620150..d84f1c0 100644
--- a/extensions/aria_extension_tosca/simple_v1_0/modeling/__init__.py
+++ b/extensions/aria_extension_tosca/simple_v1_0/modeling/__init__.py
@@ -497,8 +497,8 @@ def create_plugin_specification_model(context, policy):
 
 
 def create_workflow_operation_template_model(context, service_template, policy):
-    model = OperationTemplate(name=policy._name,
-                              service_template=service_template)
+    model = OperationTemplate(name=policy._name)
+    service_template.workflow_templates[model.name] = model
 
     if policy.description:
         model.description = policy.description.value

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/tests/instantiation/test_configuration.py
----------------------------------------------------------------------
diff --git a/tests/instantiation/test_configuration.py b/tests/instantiation/test_configuration.py
index 6ac0c9c..a41f0a8 100644
--- a/tests/instantiation/test_configuration.py
+++ b/tests/instantiation/test_configuration.py
@@ -165,8 +165,11 @@ def test_remote(service):
 
 
 def test_reserved_arguments(broken_service_issues):
-    assert len(broken_service_issues) == 1
-    message = broken_service_issues[0].message
-    assert message.startswith('using reserved arguments in operation "operation":')
-    assert '"ctx"' in message
-    assert '"toolbelt"' in message
+    assert len(broken_service_issues) == 2
+
+    assert any(
+        all([issue.message.startswith('using reserved arguments in operation "operation":
'),
+             'ctx' in issue.message,
+             'toolbelt' in issue.message])
+        for issue in broken_service_issues
+    )

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/tests/parser/service_templates.py
----------------------------------------------------------------------
diff --git a/tests/parser/service_templates.py b/tests/parser/service_templates.py
index 55cd4ad..ec41cd2 100644
--- a/tests/parser/service_templates.py
+++ b/tests/parser/service_templates.py
@@ -27,6 +27,7 @@ def consume_literal(literal, consumer_class_name='instance', cache=True,
no_issu
     context = create_context(LiteralLocation(literal))
     consumer, dumper = create_consumer(context, consumer_class_name)
     consumer.consume()
+    consumer.dump()
     if no_issues:
         context.validation.dump_issues()
         assert not context.validation.has_issues
@@ -62,11 +63,21 @@ def consume_types_use_case(use_case_name, consumer_class_name='instance',
cache=
     return context, dumper
 
 def consume_node_cellar(consumer_class_name='instance', cache=True):
+    consume_test_case(
+        get_service_template_uri('tosca-simple-1.0', 'node-cellar', 'node-cellar.yaml'),
+        consumer_class_name=consumer_class_name,
+        inputs_uri=get_service_template_uri('tosca-simple-1.0', 'node-cellar', 'inputs.yaml'),
+        cache=cache
+
+    )
+
+
+def consume_test_case(uri, inputs_uri=None, consumer_class_name='instance', cache=True):
     cachedmethod.ENABLED = cache
-    uri = get_service_template_uri('tosca-simple-1.0', 'node-cellar', 'node-cellar.yaml')
+    uri = get_service_template_uri(uri)
     context = create_context(uri)
-    context.args.append('--inputs=' + get_service_template_uri('tosca-simple-1.0', 'node-cellar',
-                                                               'inputs.yaml'))
+    if inputs_uri:
+        context.args.append('--inputs=' + get_service_template_uri(inputs_uri))
     consumer, dumper = create_consumer(context, consumer_class_name)
     consumer.consume()
     context.validation.dump_issues()

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/tests/parser/test_reqs_caps.py
----------------------------------------------------------------------
diff --git a/tests/parser/test_reqs_caps.py b/tests/parser/test_reqs_caps.py
new file mode 100644
index 0000000..0af2487
--- /dev/null
+++ b/tests/parser/test_reqs_caps.py
@@ -0,0 +1,29 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .service_templates import consume_test_case
+from ..helpers import get_service_template_uri
+
+
+def test_satisfy_capability_type():
+    consume_reqs_caps_template('instance')
+
+
+def consume_reqs_caps_template(consumer_class_name, cache=True):
+    consume_test_case(
+        get_service_template_uri('tosca-simple-1.0', 'reqs_caps', 'reqs_caps1.yaml'),
+        consumer_class_name=consumer_class_name,
+        cache=cache
+    )

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/tests/resources/service-templates/tosca-simple-1.0/reqs_caps/reqs_caps1.yaml
----------------------------------------------------------------------
diff --git a/tests/resources/service-templates/tosca-simple-1.0/reqs_caps/reqs_caps1.yaml
b/tests/resources/service-templates/tosca-simple-1.0/reqs_caps/reqs_caps1.yaml
new file mode 100644
index 0000000..466a78e
--- /dev/null
+++ b/tests/resources/service-templates/tosca-simple-1.0/reqs_caps/reqs_caps1.yaml
@@ -0,0 +1,40 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+capability_types:
+  Socket:
+    derived_from: tosca.capabilities.Root
+
+node_types:
+  Socket:
+    derived_from: tosca.nodes.Root
+    capabilities:
+      socket: Socket
+
+  Plug:
+    derived_from: tosca.nodes.Root
+    requirements:
+      - plug:
+          capability: Socket
+
+topology_template:
+  node_templates:
+    socket:
+      type: Socket
+
+    plug:
+      type: Plug
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-ariatosca/blob/56841a4d/tests/storage/__init__.py
----------------------------------------------------------------------
diff --git a/tests/storage/__init__.py b/tests/storage/__init__.py
index 8ca1480..8a4d613 100644
--- a/tests/storage/__init__.py
+++ b/tests/storage/__init__.py
@@ -23,8 +23,6 @@ from sqlalchemy import (
     MetaData
 )
 
-from aria.modeling import models
-
 
 class TestFileSystem(object):
 


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