Function parentDependentObserved

pkg/compose/reconcile_test.go:708–746

--- Service-reference resolution tests (issue #13878) --- When a service uses network_mode/ipc/pid: service:X or volumes_from: serviceName, the executor mutates the resolved field to "container:<id>" (or bare ID for volumes_from) before computing and persisting the config-hash. The reconciler must

(t *testing.T, parent, dependent types.ServiceConfig)

// (running, with its own raw hash) and a "dependent" container whose hash was
// computed on the resolved form of its service.
func parentDependentObserved(t *testing.T, parent, dependent types.ServiceConfig) *ObservedState {
	t.Helper()
	const parentID = "parent_container_abc123"
	parentSummary := container.Summary{
		ID: parentID, State: container.StateRunning,
		Labels: map[string]string{
			api.ServiceLabel:         "parent",
			api.ContainerNumberLabel: "1",
			api.ConfigHashLabel:      mustServiceHash(t, parent),
		},
	}
	parentObserved := []ObservedContainer{{
		ID: parentID, Number: 1, State: container.StateRunning,
		ConfigHash: mustServiceHash(t, parent),
		Summary:    parentSummary,
	}}
	containersByService := map[string]Containers{"parent": {parentSummary}}
	dependentHash := mustResolvedServiceHash(t, dependent, containersByService)
	return &ObservedState{
		ProjectName: "myproject",
		Containers: map[string][]ObservedContainer{
			"parent": parentObserved,
			"dependent": {{
				ID: "dependent_container_xyz", Number: 1, State: container.StateRunning,
				ConfigHash: dependentHash,
				Summary: container.Summary{
					ID: "dependent_container_xyz", State: container.StateRunning,
					Labels: map[string]string{
						api.ServiceLabel:         "dependent",
						api.ContainerNumberLabel: "1",
						api.ConfigHashLabel:      dependentHash,
					},
				},
			}},
		},
		Networks: map[string]ObservedNetwork{},
		Volumes:  map[string]ObservedVolume{},
	}
}

// TestReconcileContainers_ServiceReference_NoRecreate covers every reference
// form mutated by resolveServiceReferences. The volumes_from "container:X"