Refactor config global variables

- Create config.py module to handle configuration parsing
- Remove globals from testcases

Change-Id: I16ed7bb138fde2d5d3c69703e3c2e569d49f0b37
Signed-off-by: George Paraskevopoulos <geopar@intracom-telecom.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/test/functest/config.py b/test/functest/config.py
new file mode 100644
index 0000000..5280a89
--- /dev/null
+++ b/test/functest/config.py
@@ -0,0 +1,50 @@
+import yaml
+import os
+
+import functest.utils.functest_logger as ft_logger
+import functest.utils.functest_utils as ft_utils
+
+logger = ft_logger.Logger("sndvpn_test_config").getLogger()
+
+
+class CommonConfig(object):
+    """
+    Common configuration parameters across testcases
+    """
+    def __init__(self):
+        self.repo_path = os.path.join(os.environ['repos_dir'], 'sdnvpn')
+        self.config_file = os.path.join(self.repo_path,
+                                        'test/functest/config.yaml')
+        self.keyfile_path = os.path.join(self.repo_path,
+                                         'test/functest/id_rsa')
+        self.test_db = ft_utils.get_functest_config("results.test_db_url")
+        self.line_length = 90  # length for the summary table
+        self.vm_boot_timeout = 180
+        self.default_flavor = ft_utils.get_parameter_from_yaml(
+            "defaults.flavor", self.config_file)
+        self.image_filename = ft_utils.get_functest_config(
+            "general.openstack.image_file_name")
+        self.image_format = ft_utils.get_functest_config(
+            "general.openstack.image_disk_format")
+        self.image_path = '{0}/{1}'.format(
+            ft_utils.get_functest_config(
+                "general.directories.dir_functest_data"),
+            self.image_filename)
+
+
+class TestcaseConfig(object):
+    """
+    Configuration for a testcase.
+    Parse config.yaml into a dict and create an object out of it.
+    """
+    def __init__(self, testcase):
+        common_config = CommonConfig()
+        test_config = None
+        with open(common_config.config_file) as f:
+            testcases_yaml = yaml.safe_load(f)
+            test_config = testcases_yaml['testcases'].get(testcase, None)
+        if test_config is None:
+            logger.error('Test {0} configuration is not present in {1}'
+                         .format(testcase, common_config.config_file))
+        # Update class fields with configuration variables dynamically
+        self.__dict__.update(**test_config)