Create API to run a test case

Two APIs are created here:
1. Run a test case
2. Get the result of the task id

JIRA: FUNCTEST-853

Change-Id: I12950933b143b82fb6aeb186ea1b35ddd16e6097
Signed-off-by: Linda Wang <wangwulin@huawei.com>

3 files changed, 133 insertions, 2 deletions

diff --git a/functest/api/resources/v1/envs.py b/functest/api/resources/v1/envs.py
index 35bffb04f..9c455198d 100644
--- a/functest/api/resources/v1/envs.py
+++ b/functest/api/resources/v1/envs.py
@@ -14,6 +14,7 @@ from flask import jsonify
 
 from functest.api.base import ApiResource
 from functest.cli.commands.cli_env import Env
+from functest.api.common import api_utils
 import functest.utils.functest_utils as ft_utils
 
 
@@ -31,4 +32,9 @@ class V1Envs(ApiResource):
 
     def prepare(self, args):  # pylint: disable=no-self-use, unused-argument
         """ Prepare environment """
-        ft_utils.execute_command("prepare_env start")
+        try:
+            ft_utils.execute_command("prepare_env start")
+        except Exception as err:  # pylint: disable=broad-except
+            return api_utils.result_handler(status=1, data=str(err))
+        return api_utils.result_handler(
+            status=0, data="Prepare env successfully")
diff --git a/functest/api/resources/v1/tasks.py b/functest/api/resources/v1/tasks.py
new file mode 100644
index 000000000..7086e7075
--- /dev/null
+++ b/functest/api/resources/v1/tasks.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# 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
+
+"""
+Resources to retrieve the task results
+"""
+
+
+import json
+import logging
+import uuid
+
+from flask import jsonify
+
+from functest.api.base import ApiResource
+from functest.api.common import api_utils
+from functest.api.database.v1.handlers import TasksHandler
+
+
+LOGGER = logging.getLogger(__name__)
+
+
+class V1Tasks(ApiResource):
+    """ V1Tasks Resource class"""
+
+    def get(self, task_id):  # pylint: disable=no-self-use
+        """ GET the result of the task id """
+        try:
+            uuid.UUID(task_id)
+        except ValueError:
+            return api_utils.result_handler(status=1, data='Invalid task id')
+
+        task_handler = TasksHandler()
+        try:
+            task = task_handler.get_task_by_taskid(task_id)
+        except ValueError:
+            return api_utils.result_handler(status=1, data='No such task id')
+
+        status = task.status
+        LOGGER.debug('Task status is: %s', status)
+
+        if status not in ['IN PROGRESS', 'FAIL', 'FINISHED']:
+            return api_utils.result_handler(status=1,
+                                            data='internal server error')
+        if status == 'IN PROGRESS':
+            result = {'status': status, 'result': ''}
+        elif status == 'FAIL':
+            result = {'status': status, 'error': task.error}
+        else:
+            result = {'status': status, 'result': json.loads(task.result)}
+
+        return jsonify(result)
diff --git a/functest/api/resources/v1/testcases.py b/functest/api/resources/v1/testcases.py
index c3b8217a1..f146c24ce 100644
--- a/functest/api/resources/v1/testcases.py
+++ b/functest/api/resources/v1/testcases.py
@@ -11,11 +11,20 @@
 Resources to handle testcase related requests
 """
 
+import os
+import logging
+import uuid
+
 from flask import abort, jsonify
 
 from functest.api.base import ApiResource
-from functest.api.common import api_utils
+from functest.api.common import api_utils, thread
 from functest.cli.commands.cli_testcase import Testcase
+from functest.api.database.v1.handlers import TasksHandler
+from functest.utils.constants import CONST
+import functest.utils.functest_utils as ft_utils
+
+LOGGER = logging.getLogger(__name__)
 
 
 class V1Testcases(ApiResource):
@@ -46,3 +55,61 @@ class V1Testcase(ApiResource):
         result.update(testcase_info)
         result.update({'dependency': dependency_dict})
         return jsonify(result)
+
+    def post(self):
+        """ Used to handle post request """
+        return self._dispatch_post()
+
+    def run_test_case(self, args):
+        """ Run a testcase """
+        try:
+            case_name = args['testcase']
+        except KeyError:
+            return api_utils.result_handler(
+                status=1, data='testcase name must be provided')
+
+        task_id = str(uuid.uuid4())
+
+        task_args = {'testcase': case_name, 'task_id': task_id}
+
+        task_args.update(args.get('opts', {}))
+
+        task_thread = thread.TaskThread(self._run, task_args, TasksHandler())
+        task_thread.start()
+
+        results = {'testcase': case_name, 'task_id': task_id}
+        return jsonify(results)
+
+    def _run(self, args):  # pylint: disable=no-self-use
+        """ The built_in function to run a test case """
+
+        case_name = args.get('testcase')
+
+        if not os.path.isfile(CONST.__getattribute__('env_active')):
+            raise Exception("Functest environment is not ready.")
+        else:
+            try:
+                cmd = "run_tests -t {}".format(case_name)
+                runner = ft_utils.execute_command(cmd)
+            except Exception:  # pylint: disable=broad-except
+                result = 'FAIL'
+                LOGGER.exception("Running test case %s failed!", case_name)
+            if runner == os.EX_OK:
+                result = 'PASS'
+            else:
+                result = 'FAIL'
+
+            env_info = {
+                'installer': CONST.__getattribute__('INSTALLER_TYPE'),
+                'scenario': CONST.__getattribute__('DEPLOY_SCENARIO'),
+                'build_tag': CONST.__getattribute__('BUILD_TAG'),
+                'ci_loop': CONST.__getattribute__('CI_LOOP')
+            }
+            result = {
+                'task_id': args.get('task_id'),
+                'case_name': case_name,
+                'env_info': env_info,
+                'result': result
+            }
+
+            return {'result': result}