Exec Control: Copied to WA3 and now uses default environment.

Moved execution decorators from wlauto to wa.
Modified to use a default environment if none is explicitly specified.

wa/tests/test_exec_control.py

@@ -0,0 +1,269 @@
+#    Copyright 2013-2015 ARM Limited
+#
+# Licensed 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.
+#
+
+
+# pylint: disable=W0231,W0613,E0611,W0603,R0201
+from unittest import TestCase
+
+from nose.tools import assert_equal, assert_raises
+
+from wlauto.utils.exec_control import (init_environment, reset_environment,
+                                              activate_environment, once,
+                                              once_per_class, once_per_instance)
+
+class TestClass(object):
+
+    def __init__(self):
+        self.count = 0
+
+    @once
+    def initilize_once(self):
+        self.count += 1
+
+    @once_per_class
+    def initilize_once_per_class(self):
+        self.count += 1
+
+    @once_per_instance
+    def initilize_once_per_instance(self):
+        self.count += 1
+
+
+class SubClass(TestClass):
+
+    def __init__(self):
+        super(SubClass, self).__init__()
+
+
+class SubSubClass(SubClass):
+
+    def __init__(self):
+        super(SubSubClass, self).__init__()
+
+
+class AnotherClass(object):
+
+    def __init__(self):
+        self.count = 0
+
+    @once
+    def initilize_once(self):
+        self.count += 1
+
+    @once_per_class
+    def initilize_once_per_class(self):
+        self.count += 1
+
+    @once_per_instance
+    def initilize_once_per_instance(self):
+        self.count += 1
+
+
+class EnvironmentManagementTest(TestCase):
+
+    def test_duplicate_environment(self):
+        init_environment('ENVIRONMENT')
+        assert_raises(ValueError, init_environment, 'ENVIRONMENT')
+
+    def test_reset_missing_environment(self):
+        assert_raises(ValueError, reset_environment, 'MISSING')
+
+    def test_reset_current_environment(self):
+        activate_environment('CURRENT_ENVIRONMENT')
+        t1 = TestClass()
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        reset_environment()
+        t1.initilize_once()
+        assert_equal(t1.count, 2)
+
+    def test_switch_environment(self):
+        activate_environment('ENVIRONMENT1')
+        t1 = TestClass()
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        activate_environment('ENVIRONMENT2')
+        t1.initilize_once()
+        assert_equal(t1.count, 2)
+
+        activate_environment('ENVIRONMENT1')
+        t1.initilize_once()
+        assert_equal(t1.count, 2)
+
+    def test_reset_environment_name(self):
+        activate_environment('ENVIRONMENT')
+        t1 = TestClass()
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        reset_environment('ENVIRONMENT')
+        t1.initilize_once()
+        assert_equal(t1.count, 2)
+
+
+class OnlyOnceEnvironmentTest(TestCase):
+
+    def setUp(self):
+        activate_environment('TEST_ENVIRONMENT')
+
+    def tearDown(self):
+        reset_environment('TEST_ENVIRONMENT')
+
+    def test_single_instance(self):
+        t1 = TestClass()
+        ac = AnotherClass()
+
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        ac.initilize_once()
+        assert_equal(ac.count, 1)
+
+
+    def test_mulitple_instances(self):
+        t1 = TestClass()
+        t2 = TestClass()
+
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        t2.initilize_once()
+        assert_equal(t2.count, 0)
+
+
+    def test_sub_classes(self):
+        t1 = TestClass()
+        sc = SubClass()
+        ss = SubSubClass()
+
+        t1.initilize_once()
+        assert_equal(t1.count, 1)
+
+        sc.initilize_once()
+        sc.initilize_once()
+        assert_equal(sc.count, 0)
+
+        ss.initilize_once()
+        ss.initilize_once()
+        assert_equal(ss.count, 0)
+
+
+class OncePerClassEnvironmentTest(TestCase):
+
+    def setUp(self):
+        activate_environment('TEST_ENVIRONMENT')
+
+    def tearDown(self):
+        reset_environment('TEST_ENVIRONMENT')
+
+    def test_single_instance(self):
+        t1 = TestClass()
+        ac = AnotherClass()
+
+        t1.initilize_once_per_class()
+        assert_equal(t1.count, 1)
+
+        t1.initilize_once_per_class()
+        assert_equal(t1.count, 1)
+
+        ac.initilize_once_per_class()
+        assert_equal(ac.count, 1)
+
+
+    def test_mulitple_instances(self):
+        t1 = TestClass()
+        t2 = TestClass()
+
+        t1.initilize_once_per_class()
+        assert_equal(t1.count, 1)
+
+        t2.initilize_once_per_class()
+        assert_equal(t2.count, 0)
+
+
+    def test_sub_classes(self):
+        t1 = TestClass()
+        sc1 = SubClass()
+        sc2 = SubClass()
+        ss1 = SubSubClass()
+        ss2 = SubSubClass()
+
+        t1.initilize_once_per_class()
+        assert_equal(t1.count, 1)
+
+        sc1.initilize_once_per_class()
+        sc2.initilize_once_per_class()
+        assert_equal(sc1.count, 1)
+        assert_equal(sc2.count, 0)
+
+        ss1.initilize_once_per_class()
+        ss2.initilize_once_per_class()
+        assert_equal(ss1.count, 1)
+        assert_equal(ss2.count, 0)
+
+
+class OncePerInstanceEnvironmentTest(TestCase):
+
+    def setUp(self):
+        activate_environment('TEST_ENVIRONMENT')
+
+    def tearDown(self):
+        reset_environment('TEST_ENVIRONMENT')
+
+    def test_single_instance(self):
+        t1 = TestClass()
+        ac = AnotherClass()
+
+        t1.initilize_once_per_instance()
+        assert_equal(t1.count, 1)
+
+        t1.initilize_once_per_instance()
+        assert_equal(t1.count, 1)
+
+        ac.initilize_once_per_instance()
+        assert_equal(ac.count, 1)
+
+
+    def test_mulitple_instances(self):
+        t1 = TestClass()
+        t2 = TestClass()
+
+        t1.initilize_once_per_instance()
+        assert_equal(t1.count, 1)
+
+        t2.initilize_once_per_instance()
+        assert_equal(t2.count, 1)
+
+
+    def test_sub_classes(self):
+        t1 = TestClass()
+        sc = SubClass()
+        ss = SubSubClass()
+
+        t1.initilize_once_per_instance()
+        assert_equal(t1.count, 1)
+
+        sc.initilize_once_per_instance()
+        sc.initilize_once_per_instance()
+        assert_equal(sc.count, 1)
+
+        ss.initilize_once_per_instance()
+        ss.initilize_once_per_instance()
+        assert_equal(ss.count, 1)