Backstage test coverage improvement

[gusevda]

Clusters page:

• a user can see a list of clusters it has access to;
• a user can see various kinds of information about each cluster;
• a user can change order in which clusters are displayed; ???
• a user can filter clusters by search query; ???
• a user can reload the list of clusters;
• a user can filter clusters by installation;

Cluster details page:

• a user can see generic information about a cluster;
• a user can review cluster's labels;
• a user can see instructions on how to access Kubernetes API of a cluster;
• a user can see details about installation hosting a cluster;
• a user can see policy compliance information for a cluster;
• GS staff can see information about SSH access;

Catalog entity deployments:

• a user can see a list of deployments for a component;
• a user can see various kinds of information about each deployment;
• a user can change order in which deployments are displayed; ???
• a user can filter deployments by search query; ???
• a user can reload the list of deployments;
• a user can filter deployments by installations;

Deployment details page:
should be done after moving deployment details into a separate tab/page.

Installations selector widget:

• test that it's correctly synced in cases when Backstage is opened in multiple tabs;

Developer user use cases:

• test that requests to Kubernetes APIs are being made correctly for cluster admin users and for users with limited access.

[weatherhog]

lets create smaller tasks from this