[tracker-miners/sam/test-runner-fix: 16/21] functional-tests: Run each writeback test in a clean environment



commit 8310482cb51109f23518c6eb3ff39a82a81b1f56
Author: Sam Thursfield <sam afuera me uk>
Date:   Fri Jan 4 22:50:28 2019 +0100

    functional-tests: Run each writeback test in a clean environment
    
    This way it's slower, but prevents the tests from mostly failing.

 tests/functional-tests/500-writeback.py            | 28 ++--------------------
 tests/functional-tests/501-writeback-details.py    |  3 +--
 .../functional-tests/common/utils/writebacktest.py | 15 ++++++------
 3 files changed, 10 insertions(+), 36 deletions(-)
---
diff --git a/tests/functional-tests/500-writeback.py b/tests/functional-tests/500-writeback.py
index f82bd8b42..eebef54c9 100755
--- a/tests/functional-tests/500-writeback.py
+++ b/tests/functional-tests/500-writeback.py
@@ -37,28 +37,6 @@ class WritebackBasicDataTest (CommonTrackerWritebackTest):
     Write in tracker store the properties witih writeback support and check
     that the new values are actually in the file
     """
-    def setUp (self):
-        self.tracker = self.system.store
-        self.extractor = self.system.extractor
-
-    def __clean_property (self, property_name, fileuri, expectFailure=True):
-        """
-        Remove the property for the fileuri (file://...)
-        """
-        CLEAN = """
-           DELETE { ?u %s ?whatever }
-           WHERE  {
-               ?u nie:url '%s' ;
-                  %s ?whatever .
-           
-           }
-        """
-        try:
-            self.tracker.update (CLEAN % (property_name, fileuri, property_name))
-        except Exception, e:
-            print e
-            assert expectFailure
-                                
 
     def __writeback_test (self, filename, mimetype, prop, expectedKey=None):
         """
@@ -77,11 +55,11 @@ class WritebackBasicDataTest (CommonTrackerWritebackTest):
 
         TEST_VALUE = prop.replace (":","") + "test"
         SPARQL_TMPL = """
+           DELETE { ?u %s ?v } WHERE { ?u nie:url '%s' ; %s ?v }
            INSERT { ?u %s '%s' }
            WHERE  { ?u nie:url '%s' }
         """ 
-        self.__clean_property (prop, filename)
-        self.tracker.update (SPARQL_TMPL % (prop, TEST_VALUE, filename))
+        self.tracker.update (SPARQL_TMPL % (prop, filename, prop, prop, TEST_VALUE, filename))
 
         log("Waiting for change on %s" % filename_real)
         self.wait_for_file_change(filename_real, initial_mtime)
@@ -90,8 +68,6 @@ class WritebackBasicDataTest (CommonTrackerWritebackTest):
         results = get_tracker_extract_jsonld_output (filename, mimetype)
         keyDict = expectedKey or prop
         self.assertIn (TEST_VALUE, results[keyDict])
-        self.__clean_property (prop, filename, False)
-
 
     def __writeback_hasTag_test (self, filename, mimetype):
 
diff --git a/tests/functional-tests/501-writeback-details.py b/tests/functional-tests/501-writeback-details.py
index 2ab90ccef..83a5518c6 100755
--- a/tests/functional-tests/501-writeback-details.py
+++ b/tests/functional-tests/501-writeback-details.py
@@ -31,8 +31,7 @@ REASONABLE_TIMEOUT = 5 # Seconds we wait for tracker-writeback to do the work
 class WritebackKeepDateTest (CommonTrackerWritebackTest):
 
     def setUp (self):
-        self.tracker = self.system.store
-        self.extractor = self.system.extractor
+        super(WritebackKeepDateTest, self).setUp()
         self.favorite = self.__prepare_favorite_tag ()
 
     def __prepare_favorite_tag (self):
diff --git a/tests/functional-tests/common/utils/writebacktest.py 
b/tests/functional-tests/common/utils/writebacktest.py
index ebfeeb92a..674e0febf 100644
--- a/tests/functional-tests/common/utils/writebacktest.py
+++ b/tests/functional-tests/common/utils/writebacktest.py
@@ -58,8 +58,7 @@ class CommonTrackerWritebackTest (ut.TestCase):
     Superclass to share methods. Shouldn't be run by itself.
     Start all processes including writeback, miner pointing to WRITEBACK_TMP_DIR
     """
-            
-    @classmethod
+
     def __prepare_directories (self):
         if (os.path.exists (os.getcwd() + "/test-writeback-data")):
             # Use local directory if available
@@ -80,8 +79,7 @@ class CommonTrackerWritebackTest (ut.TestCase):
             shutil.copy (origin, WRITEBACK_TMP_DIR)
 
 
-    @classmethod 
-    def setUpClass (self):
+    def setUp(self):
         #print "Starting the daemon in test mode"
         self.__prepare_directories ()
         
@@ -100,15 +98,16 @@ class CommonTrackerWritebackTest (ut.TestCase):
         await_resource_extraction (self.get_test_filename_tiff())
         await_resource_extraction (self.get_test_filename_png())
 
+        self.tracker = self.system.store
+        self.extractor = self.system.extractor
+
         # Returns when ready
         log ("Ready to go!")
-        
-    @classmethod
-    def tearDownClass (self):
+
+    def tearDown (self):
         #print "Stopping the daemon in test mode (Doing nothing now)"
         self.system.tracker_writeback_testing_stop ()
         log ("Test finished")
-    
 
     @staticmethod
     def get_test_filename_jpeg ():


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