Add tier_handler and tier_builder

tier_handler: defines the classes for Tier,TestCase and Dependency
tier_builder: reads the testcases.yaml and creates a list of objects
              that will be used later on to execute the tests

JIRA: FUNCTEST-190

Change-Id: Iabef344aff036ad3b525088af59fb21b16b02fc8
Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/CI/tier_builder.py b/CI/tier_builder.py
new file mode 100644
index 000000000..e66e97a38
--- /dev/null
+++ b/CI/tier_builder.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+#
+# jose.lausuch@ericsson.com
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+
+import yaml
+
+import tier_handler as th
+
+
+class TierBuilder:
+    def __init__(self, ci_installer, ci_scenario, testcases_file):
+        self.ci_installer = ci_installer
+        self.ci_scenario = ci_scenario
+        self.testcases_file = testcases_file
+        self.dic_tier_array = None
+        self.tier_objects = []
+        self.testcases_yaml = None
+        self.generate_tiers()
+
+    def read_test_yaml(self):
+        with open(self.testcases_file) as f:
+            self.testcases_yaml = yaml.safe_load(f)
+
+        self.dic_tier_array = []
+        for tier in self.testcases_yaml.get("tiers"):
+            self.dic_tier_array.append(tier)
+
+    def generate_tiers(self):
+        if self.dic_tier_array is None:
+            self.read_test_yaml()
+
+        del self.tier_objects[:]
+        for dic_tier in self.dic_tier_array:
+            tier = th.Tier(name=dic_tier['name'],
+                           order=dic_tier['order'],
+                           ci=dic_tier['ci'],
+                           description=dic_tier['description'])
+
+            for dic_testcase in dic_tier['testcases']:
+                installer = dic_testcase['dependencies']['installer']
+                scenario = dic_testcase['dependencies']['scenario']
+                dep = th.Dependency(installer, scenario)
+
+                testcase = th.TestCase(name=dic_testcase['name'],
+                                       dependency=dep,
+                                       description=dic_testcase['description'])
+                if testcase.is_compatible(self.ci_installer, self.ci_scenario):
+                    tier.add_test(testcase)
+
+            self.tier_objects.append(tier)
+
+    def __str__(self):
+        output = ""
+        for i in range(0, len(self.tier_objects)):
+            output += str(self.tier_objects[i]) + "\n"
+        return output