diff --git a/tests/test_compute_manager.py b/tests/test_compute_manager.py
index ad484756..4ea4d21d 100644
--- a/tests/test_compute_manager.py
+++ b/tests/test_compute_manager.py
@@ -59,7 +59,7 @@ def test_deleteCompute(controller):
     cm.deleteCompute("test")
     assert "test" not in cm._computes
     assert callback_delete.called
-    controller._http_client.createHTTPQuery.assert_called_with("DELETE", "/computes/test", None)
+    controller._http_client.createHTTPQuery.assert_called_with("DELETE", "/computes/test")
 
 
 def test_listComputesCallback():
diff --git a/tests/test_http_client.py b/tests/test_http_client.py
index 79006466..6a45687d 100644
--- a/tests/test_http_client.py
+++ b/tests/test_http_client.py
@@ -66,7 +66,6 @@ def test_get_connected(http_client, http_request, network_manager, response):
 
     http_client.createHTTPQuery("GET", "/test", callback)
     http_request.assert_called_with(QtCore.QUrl("http://127.0.0.1:3080/v2/test"))
-    http_request.setRawHeader.assert_any_call(b"Content-Type", b"application/json")
     http_request.setRawHeader.assert_any_call(b"User-Agent", "GNS3 QT Client v{version}".format(version=__version__).encode())
     assert network_manager.sendCustomRequest.called
     args, kwargs = network_manager.sendCustomRequest.call_args
@@ -80,7 +79,7 @@ def test_get_connected(http_client, http_request, network_manager, response):
 
 
 def test_paramsToQueryString(http_client):
-    assert http_client._paramsToQueryString({}) == ""
+    assert http_client._paramsToQueryString(None) == ""
     res = http_client._paramsToQueryString({"a": 1, "b": 2})
     assert res == "?a=1&b=2" or res == "?b=2&a=1"
     res = http_client._paramsToQueryString({"a": 1, "b": 2, "c": None})
@@ -96,7 +95,6 @@ def test_get_connected_auth(http_client, http_request, network_manager, response
 
     http_client.createHTTPQuery("GET", "/test", callback)
     http_request.assert_called_with(QtCore.QUrl("http://gns3@127.0.0.1:3080/v2/test"))
-    http_request.setRawHeader.assert_any_call(b"Content-Type", b"application/json")
     http_request.setRawHeader.assert_any_call(b"Authorization", b"Basic Z25zMzozc25n")
     http_request.setRawHeader.assert_any_call(b"User-Agent", "GNS3 QT Client v{version}".format(version=__version__).encode())
     assert network_manager.sendCustomRequest.called
@@ -115,7 +113,7 @@ def test_post_not_connected(http_client, http_request, network_manager, response
     http_client._connected = False
     callback = unittest.mock.MagicMock()
 
-    http_client.createHTTPQuery("POST", "/test", callback, context={"toto": 42})
+    http_client.createHTTPQuery("POST", "/test", callback, context={"query_id": 42})
 
     args, kwargs = network_manager.sendCustomRequest.call_args
     assert args[0] == http_request
@@ -138,7 +136,7 @@ def test_post_not_connected(http_client, http_request, network_manager, response
     assert callback.called
 
     args, kwargs = callback.call_args
-    assert kwargs["context"]["toto"] == 42
+    assert kwargs["context"]["query_id"] == 42
 
 
 def test_post_not_connected_connection_failed(http_client, http_request, network_manager, response):
diff --git a/tests/test_link.py b/tests/test_link.py
index b571c9ef..d2e4a7cd 100644
--- a/tests/test_link.py
+++ b/tests/test_link.py
@@ -65,7 +65,7 @@ def link(devices, controller, project):
             {"node_id": devices[0].node_id(), "adapter_number": 0, "port_number": 0},
             {"node_id": devices[1].node_id(), "adapter_number": 0, "port_number": 0}
         ],
-        "link_style": {},
+        "link_style": {'color': '#000000', 'width': 2, 'type': 1},
         "filters": {},
     }
 
@@ -90,7 +90,7 @@ def test_create_link(devices, project, controller):
             {"node_id": devices[0].node_id(), "adapter_number": 0, "port_number": 0},
             {"node_id": devices[1].node_id(), "adapter_number": 0, "port_number": 0},
         ],
-        "link_style": {},
+        "link_style": {'color': '#000000', 'width': 2, 'type': 1},
         "filters": {},
     }