o/h/ctlcmd: reduce comment verbosity, inline unit test setup code

Author: Rnfudge02

overlord/hookstate/ctlcmd/helpers.go

@@ -72,11 +72,6 @@ const snapctlDebounceWindow = 200 * time.Millisecond
 const finalSeedTask = "mark-seeded"
 
 // ChangeInfo represents the information about a change that is needed for JSON marshaling.
-// To unmarshal the data needed for `snap tasks`, we need access
-// to all struct fields that client.Change has. However, Change.data is an
-// unexported field, so we cannot unmarshal into it directly. There is a
-// changeAndData struct in the client package with all exported fields, but the
-// struct itself is not exported.
 type ChangeInfo struct {
 	ID      string     `json:"id"`
 	Kind    string     `json:"kind"`
@@ -93,9 +88,7 @@ type ChangeInfo struct {
 }
 
 // TaskInfo represents the information about a task that is needed for JSON marshaling
-// for `snap tasks` output. It includes fields such as ID, kind, summary, status, and
-// any additional data associated with the task. The Data field is a map of string keys
-// to raw JSON messages, allowing for flexible inclusion of task-specific data in the output.
+// for `snap tasks` output.
 type TaskInfo struct {
 	ID       string           `json:"id"`
 	Kind     string           `json:"kind"`
@@ -111,8 +104,7 @@ type TaskInfo struct {
 }
 
 // TaskInfoProgress represents the progress of a task, including a label and the
-// amount of work done out of the total. Used in the TaskInfo struct to provide
-// progress information for tasks in the `snap tasks` output.
+// amount of work done out of the total.
 type TaskInfoProgress struct {
 	Label string `json:"label"`
 	Done  int    `json:"done"`

overlord/hookstate/ctlcmd/helpers_test.go

@@ -34,7 +34,10 @@ type helperSuite struct {
 
 var _ = Suite(&helperSuite{})
 
-func setupChange() (*state.State, string, *state.Change) {
+// TestStateChangeToChangeInfo tests the StateChangeToChangeInfo function,
+// verifying that state changes are correctly converted to ChangeInfo structs
+// and that the data can be successfully marshaled and unmarshaled.
+func (s *helperSuite) TestStateChangeToChangeInfo(c *C) {
 	st := state.New(nil)
 	st.Lock()
 	defer st.Unlock()
@@ -51,25 +54,12 @@ func setupChange() (*state.State, string, *state.Change) {
 		"kind":       "install-components",
 	})
 
-	return st, chg.ID(), chg
-}
-
-// TestStateChangeToChangeInfo tests the StateChangeToChangeInfo function,
-// verifying that state changes are correctly converted to ChangeInfo structs
-// and that the data can be successfully marshalled and unmarshalled.
-func (s *helperSuite) TestStateChangeToChangeInfo(c *C) {
-	st, changeID, _ := setupChange()
-
-	st.Lock()
-	chg := st.Change(changeID)
-	c.Assert(chg, NotNil)
-
 	// Convert the state.Change to ChangeInfo
+	c.Assert(chg, NotNil)
 	changeInfo := ctlcmd.StateChangeToChangeInfo(chg)
-	st.Unlock()
 
 	// Verify basic change information
-	c.Check(changeInfo.ID, Equals, changeID)
+	c.Check(changeInfo.ID, Equals, chg.ID())
 	c.Check(changeInfo.Kind, Equals, "snapctl-install")
 	c.Check(changeInfo.Summary, Equals, "install components for test-snap")
 	c.Check(changeInfo.Status, Equals, "Done")
@@ -93,5 +83,4 @@ func (s *helperSuite) TestStateChangeToChangeInfo(c *C) {
 	// Verify change-level data (api-data)
 	c.Assert(changeInfo.Data, NotNil)
 	c.Assert(changeInfo.Data["snap-names"], NotNil)
-
 }