Fix minor errors reported by codacy.com

tests/conftest.py

@@ -73,7 +73,7 @@ def _get_unused_port():
     return port
 
 
-@pytest.fixture(scope="session")
+@pytest.fixture
 def server(request, loop, port_manager, monkeypatch):
     """A GNS3 server"""
 

tests/handlers/test_upload.py

@@ -144,10 +144,10 @@ def test_backup_images(server, tmpdir, loop):
     tar.close()
 
     assert os.path.exists(os.path.join('QEMU', 'a.img'))
-    open(os.path.join('QEMU', 'a.img')).read() == 'hello'
+    assert open(os.path.join('QEMU', 'a.img')).read() == 'hello'
 
     assert os.path.exists(os.path.join('QEMU', 'b.img'))
-    open(os.path.join('QEMU', 'b.img')).read() == 'world'
+    assert open(os.path.join('QEMU', 'b.img')).read() == 'world'
 
 
 def test_backup_projects(server, tmpdir, loop):
@@ -176,7 +176,7 @@ def test_backup_projects(server, tmpdir, loop):
     tar.close()
 
     assert os.path.exists(os.path.join('a', 'a.gns3'))
-    open(os.path.join('a', 'a.gns3')).read() == 'hello'
+    assert open(os.path.join('a', 'a.gns3')).read() == 'hello'
 
     assert os.path.exists(os.path.join('b', 'b.gns3'))
-    open(os.path.join('b', 'b.gns3')).read() == 'world'
+    assert open(os.path.join('b', 'b.gns3')).read() == 'world'

tests/modules/vpcs/test_vpcs_vm.py

@@ -171,15 +171,6 @@ def test_update_startup_script(vm):
         assert f.read() == content
 
 
-def test_update_startup_script(vm):
-    content = "echo GNS3 VPCS\nip 192.168.1.2\n"
-    vm.startup_script = content
-    filepath = os.path.join(vm.working_dir, 'startup.vpc')
-    assert os.path.exists(filepath)
-    with open(filepath) as f:
-        assert f.read() == content
-
-
 def test_update_startup_script_h(vm):
     content = "setname %h\n"
     vm.name = "pc1"