tests: set english language on views tests (#40575)

tests/test_views.py

@@ -122,7 +122,8 @@ def test_visualization_creation_view(schema1, app, admin):
     assert visu.parameters['warehouse_slug'] == 'schema1_slug'
 
 
-def test_import_visualization(schema1, app, admin, visualization):
+def test_import_visualization(schema1, app, admin, visualization, settings):
+    settings.LANGUAGE_CODE = 'en-us'
     login(app, admin)
     resp = app.get('/visualization/%s/' % visualization.id)
     resp = resp.click('Export as JSON')
@@ -191,7 +192,8 @@ def test_import_visualization(schema1, app, admin, visualization):
     assert Visualization.objects.count() == 3
 
 
-def test_save_as(schema1, app, admin, visualization):
+def test_save_as(schema1, app, admin, visualization, settings):
+    settings.LANGUAGE_CODE = 'en-us'
     login(app, admin)
     resp = app.get('/visualization/%s/' % visualization.id)
     resp = resp.click('Save as')