refactor(agent): add agenttest.New helper function (#9812)

* Adds agenttest.New() helper function
* Makes sure agent gets closed on test cleanup
* Makes sure you don't forget to set session token
* Sets the agent and client logger automatically

coderd/workspaceapps/db_test.go

@@ -17,14 +17,12 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"cdr.dev/slog/sloggers/slogtest"
-	"github.com/coder/coder/v2/agent"
+	"github.com/coder/coder/v2/agent/agenttest"
 	"github.com/coder/coder/v2/coderd/coderdtest"
 	"github.com/coder/coder/v2/coderd/httpapi"
 	"github.com/coder/coder/v2/coderd/httpmw"
 	"github.com/coder/coder/v2/coderd/workspaceapps"
 	"github.com/coder/coder/v2/codersdk"
-	"github.com/coder/coder/v2/codersdk/agentsdk"
 	"github.com/coder/coder/v2/provisioner/echo"
 	"github.com/coder/coder/v2/provisionersdk/proto"
 	"github.com/coder/coder/v2/testutil"
@@ -173,15 +171,7 @@ func Test_ResolveRequest(t *testing.T) {
 	workspace := coderdtest.CreateWorkspace(t, client, firstUser.OrganizationID, template.ID)
 	coderdtest.AwaitWorkspaceBuildJob(t, client, workspace.LatestBuild.ID)
 
-	agentClient := agentsdk.New(client.URL)
-	agentClient.SetSessionToken(agentAuthToken)
-	agentCloser := agent.New(agent.Options{
-		Client: agentClient,
-		Logger: slogtest.Make(t, nil).Named("agent"),
-	})
-	t.Cleanup(func() {
-		_ = agentCloser.Close()
-	})
+	_ = agenttest.New(t, client.URL, agentAuthToken)
 	resources := coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID, agentName)
 
 	agentID := uuid.Nil