Modify TestCase.__str__() to use PrettyTable

It adds PrettyTable as requirement even if it's already defined in
OpenStack client dependencies.

If the TestCase object is considered as invalid, it simply returns the
default str.

Change-Id: Iee788aef2a13694d9482560977cbbf21c7f2c967
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

2 files changed, 14 insertions, 8 deletions

diff --git a/functest/core/testcase.py b/functest/core/testcase.py
index 49fae609..317c4f59 100644
--- a/functest/core/testcase.py
+++ b/functest/core/testcase.py
@@ -12,6 +12,8 @@
 import logging
 import os
 
+import prettytable
+
 import functest.utils.functest_utils as ft_utils
 
 __author__ = "Cedric Ollivier <cedric.ollivier@orange.com>"
@@ -49,14 +51,16 @@ class TestCase(object):
             assert self.case_name
             result = 'PASS' if(self.is_successful(
                 ) == TestCase.EX_OK) else 'FAIL'
-            return ('| {0:<23} | {1:<13} | {2:<10} | {3:<13} |'
-                    '\n{4:-<26}{4:-<16}{4:-<13}{4:-<16}{4}'.format(
-                        self.case_name, self.project_name,
-                        self.get_duration(), result, '+'))
+            msg = prettytable.PrettyTable(
+                header_style='upper',
+                field_names=['test case', 'project', 'duration',
+                             'result'])
+            msg.add_row([self.case_name, self.project_name,
+                         self.get_duration(), result])
+            return msg.get_string()
         except AssertionError:
             self.__logger.error("We cannot print invalid objects")
-            return '| {0:^68} |\n{1:-<26}{1:-<16}{1:-<13}{1:-<16}{1}'.format(
-                'INVALID OBJECT', '+')
+            return super(TestCase, self).__str__()
 
     def get_duration(self):
         """Return the duration of the test case.
diff --git a/functest/tests/unit/core/test_testcase.py b/functest/tests/unit/core/test_testcase.py
index b25ce226..08a717a2 100644
--- a/functest/tests/unit/core/test_testcase.py
+++ b/functest/tests/unit/core/test_testcase.py
@@ -191,11 +191,13 @@ class TestCaseTesting(unittest.TestCase):
 
     def test_str_project_name_ko(self):
         self.test.project_name = None
-        self.assertIn("INVALID OBJECT", str(self.test))
+        self.assertIn("<functest.core.testcase.TestCase object at",
+                      str(self.test))
 
     def test_str_case_name_ko(self):
         self.test.case_name = None
-        self.assertIn("INVALID OBJECT", str(self.test))
+        self.assertIn("<functest.core.testcase.TestCase object at",
+                      str(self.test))
 
     def test_str_pass(self):
         duration = '01:01'