Function TestCmdDoBackgroundFreshSpawn

internal/app/background_test.go:133–168

TestCmdDoBackgroundFreshSpawn: $FLOW_TERM=bg flow do spawns a bg agent, captures the REAL full session id (not a pre-allocated phantom), records it + harness, flips to in-progress, and opens NO terminal tab.

(t *testing.T)

// agent, captures the REAL full session id (not a pre-allocated phantom),
// records it + harness, flips to in-progress, and opens NO terminal tab.
func TestCmdDoBackgroundFreshSpawn(t *testing.T) {
	setupFlowRoot(t)
	seedTask(t, "bgt")
	stubBGMode(t)
	itermCount, _ := stubITerm(t)
	reg := bgAgentsJSON(bgFullSID)
	c := stubBGCommand(t, &reg)

	if rc := cmdDo([]string{"bgt"}); rc != 0 {
		t.Fatalf("cmdDo (bg) rc=%d, want 0", rc)
	}
	if *itermCount != 0 {
		t.Errorf("terminal spawn count = %d, want 0 (bg opens no tab)", *itermCount)
	}
	if c.spawn != 1 {
		t.Fatalf("bg spawn calls = %d, want 1", c.spawn)
	}
	if !containsArg(c.lastSpawn, "--bg") || !pairArg(c.lastSpawn, "--name", "bgt") {
		t.Errorf("spawn argv wrong: %v", c.lastSpawn)
	}

	db := openFlowDB(t)
	task, err := flowdb.GetTask(db, "bgt")
	if err != nil {
		t.Fatal(err)
	}
	if task.SessionID.String != bgFullSID {
		t.Errorf("session_id = %q, want captured %q", task.SessionID.String, bgFullSID)
	}
	if task.Status != "in-progress" {
		t.Errorf("status = %q, want in-progress", task.Status)
	}
	if !task.Harness.Valid || task.Harness.String != "claude" {
		t.Errorf("harness = %+v, want claude", task.Harness)
	}
}

// TestCmdDoBackgroundAlreadyRunning: re-running while the session is alive
// in the registry must NOT spawn or resume — just report.