#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description:

#

import unittest

import os

import re

import logging

import __init__

from cone.public import *

ROOT_PATH = os.path.dirname(os.path.abspath(__file__))

class TestContext(object):

    """ DefaultContext implements ConE specific context for handling rules

    """

    def __init__(self, data):

        self.data = data

    def eval(self, ast, expression, value):

        pass

    def get_keys(self, refs):

        return ASTInterpreter.extract_refs(refs)

    def get_children_for_reference(self, reference):

        # implement ConE specific children expansion

        pass

    def handle_terminal(self, expression):

        try:

            m = re.match("\${(.*)}", expression)

            if m:

                return self.data[m.group(1)]

            elif expression in ['true','1','True']:

                return True

            elif expression in ['false','0','False']:

                return False

            else:

                return eval(expression)

        except:

            return expression

class TestPluginCondition(unittest.TestCase):

    def test_create_plugin_condition(self):

        condition = rules.SimpleCondition("foo.bar", "True")

    def test_create_plugin_and_eval_booleans(self):

        context = TestContext(None)

        condition = rules.SimpleCondition("1", "True")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("0", True)

        self.assertFalse(condition.eval(context))

    def test_create_plugin_and_eval_integers(self):

        context = TestContext(None)

        condition = rules.SimpleCondition("1", "2")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("112", "2")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("2", "2")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition(2, 2)

        self.assertTrue(condition.eval(context))

    def test_create_plugin_and_eval_string(self):

        context = TestContext(None)

        condition = plugin.rules.SimpleCondition("test", "foo")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("test", "")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("test foo", "test foo")

        self.assertTrue(condition.eval(context))

    def test_create_plugin_and_eval_data_reference(self):

        context = TestContext({'test' : 1, 'foo' : 2, 'bar' : True})

        condition = rules.SimpleCondition("${test}", 1)

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test}", False)

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("${test}", "${foo}")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("${test}", "${bar}")

        self.assertTrue(condition.eval(context))

    def test_create_plugin_and_eval_data_reference_on_generation_context(self):

        context = plugin.GenerationContext()

        context.configuration = api.Configuration()

        context.configuration.add_feature(api.Feature("test"))

        context.configuration.add_feature(api.Feature("stringsub"),"test")

        context.configuration.add_feature(api.Feature("intsub"),"test")

        condition = rules.SimpleCondition("${test}", None)

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test.stringsub}", "None")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test.intsub}", "None")

        self.assertTrue(condition.eval(context))

        context.configuration.get_default_view().test.value = True

        context.configuration.get_default_view().test.stringsub.value = "stringval"

        context.configuration.get_default_view().test.intsub.value = 2

        condition = rules.SimpleCondition("${test}", "true")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test}", "false")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("${test.stringsub}", "tes")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("${test.stringsub}", "stringval")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test.intsub}", "1")

        self.assertFalse(condition.eval(context))

        condition = rules.SimpleCondition("${test.intsub}", "2")

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test.intsub}", 2)

        self.assertTrue(condition.eval(context))

        condition = rules.SimpleCondition("${test.intsub}", 1)

        self.assertFalse(condition.eval(context))

        try:

            condition = rules.SimpleCondition("${boo}", "false")

            self.fail("access of non existing elements succeds?")

        except:

            pass