Update test fixtures

- Can't assume that pk values will be assigned sensibly!
- Need to hard-code them in

tasks.py

@@ -174,37 +174,16 @@ def style(c):
     print("Running PEP style checks...")
     c.run('flake8 InvenTree')
 
-@task(help={'database': "Database framework to use (default=sqlite)"})
+@task
 def test(c, database=None):
     """
     Run unit-tests for InvenTree codebase.
     """
-
-    if database is None:
-        database = 'sqlite'
-
-    database = database.lower()
-
-    allowed = {
-        'sqlite': 'InvenTree.settings',
-        'postgresql': 'InvenTree.ci_postgresql',
-        'mysql': 'InvenTree.ci_mysql',
-    }
-
-    if database not in allowed.keys():
-        print("Database framework not supported for testing:")
-        print("Choose from: '{a}'".format(a=allowed))
-
-        return False
-
     # Run sanity check on the django install
     manage(c, 'check')
 
     # Run coverage tests
-    manage(c, 'test {apps} --settings={sett}'.format(
-        apps=' '.join(apps()),
-        sett=allowed[database]
-    ))
+    manage(c, 'test', pty=True)
 
 @task
 def coverage(c):