glance change builtin tests config location

Many glance built-in testcases failed because they
can not find glance configuration files, as these
testcases assume that they are run at python
site-packages dir.

So forcing these failure testcases to look for
these configuration files using absolute path.

Signed-off-by: Vu Tran <vu.tran@windriver.com>

diff --git a/glance/tests/functional/__init__.py b/glance/tests/functional/__init__.py
index 1256133..01adb81 100644
--- a/glance/tests/functional/__init__.py
+++ b/glance/tests/functional/__init__.py
@@ -900,7 +900,7 @@ class FunctionalTest(test_utils.BaseTestCase):
         return engine.execute(sql)
 
     def copy_data_file(self, file_name, dst_dir):
-        src_file_name = os.path.join('glance/tests/etc', file_name)
+        src_file_name = os.path.join('%PYTHON_SITEPACKAGES_DIR%/glance/tests/etc', file_name)
         shutil.copy(src_file_name, dst_dir)
         dst_file_name = os.path.join(dst_dir, file_name)
         return dst_file_name
diff --git a/glance/tests/unit/api/test_common.py b/glance/tests/unit/api/test_common.py
index 8892025..2aac6b7 100644
--- a/glance/tests/unit/api/test_common.py
+++ b/glance/tests/unit/api/test_common.py
@@ -137,7 +137,7 @@ class TestMalformedRequest(test_utils.BaseTestCase):
         super(TestMalformedRequest, self).setUp()
         self.config(flavor='',
                     group='paste_deploy',
-                    config_file='etc/glance-api-paste.ini')
+                    config_file='/etc/glance/glance-api-paste.ini')
         self.api = config.load_paste_app('glance-api')
 
     def test_redirect_incomplete_url(self):
diff --git a/glance/tests/unit/base.py b/glance/tests/unit/base.py
index 4a19730..16ec103 100644
--- a/glance/tests/unit/base.py
+++ b/glance/tests/unit/base.py
@@ -76,7 +76,7 @@ class IsolatedUnitTest(StoreClearingUnitTest):
                                                  registry=self.registry)
 
     def _copy_data_file(self, file_name, dst_dir):
-        src_file_name = os.path.join('glance/tests/etc', file_name)
+        src_file_name = os.path.join('%PYTHON_SITEPACKAGES_DIR%/glance/tests/etc', file_name)
         shutil.copy(src_file_name, dst_dir)
         dst_file_name = os.path.join(dst_dir, file_name)
         return dst_file_name
diff --git a/glance/tests/unit/common/test_config.py b/glance/tests/unit/common/test_config.py
index 2dfede1..422a458 100644
--- a/glance/tests/unit/common/test_config.py
+++ b/glance/tests/unit/common/test_config.py
@@ -64,8 +64,7 @@ class TestPasteApp(test_utils.BaseTestCase):
 
         paste_to = temp_file.replace('.conf', '-paste.ini')
         if not paste_config_file and make_paste_file:
-            paste_from = os.path.join(os.getcwd(),
-                                      'etc/glance-registry-paste.ini')
+            paste_from = '/etc/glance/glance-registry-paste.ini'
             _appendto(paste_from, paste_to, paste_append)
 
         app = config.load_paste_app('glance-registry')
@@ -90,8 +89,7 @@ class TestPasteApp(test_utils.BaseTestCase):
                                      paste_append=pipeline)
 
     def test_load_paste_app_with_paste_config_file(self):
-        paste_config_file = os.path.join(os.getcwd(),
-                                         'etc/glance-registry-paste.ini')
+        paste_config_file = '/etc/glance/glance-registry-paste.ini'
         expected_middleware = context.UnauthenticatedContextMiddleware
         self._do_test_load_paste_app(expected_middleware,
                                      paste_config_file=paste_config_file)
diff --git a/glance/tests/utils.py b/glance/tests/utils.py
index 760824c..db598ba 100644
--- a/glance/tests/utils.py
+++ b/glance/tests/utils.py
@@ -67,7 +67,7 @@ class BaseTestCase(testtools.TestCase):
         self.config(property_protection_file=self.property_file)
 
     def _copy_data_file(self, file_name, dst_dir):
-        src_file_name = os.path.join('glance/tests/etc', file_name)
+        src_file_name = os.path.join('%PYTHON_SITEPACKAGES_DIR%/glance/tests/etc', file_name)
         shutil.copy(src_file_name, dst_dir)
         dst_file_name = os.path.join(dst_dir, file_name)
         return dst_file_name