test: add tests for app & Close() methods

app_test.go

@@ -0,0 +1,195 @@
+package gomeassistant
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestAppClose(t *testing.T) {
+	// Create a new app with minimal configuration
+	app := &App{
+		ctx:       context.Background(),
+		ctxCancel: func() {}, // No-op cancel function for test
+	}
+
+	// Test that Close() doesn't panic
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+}
+
+func TestAppCloseWithContext(t *testing.T) {
+	// Create a context with cancel function
+	ctx, cancel := context.WithCancel(context.Background())
+
+	app := &App{
+		ctx:       ctx,
+		ctxCancel: cancel,
+	}
+
+	// Test that Close() cancels the context
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+
+	// Verify context was cancelled
+	select {
+	case <-ctx.Done():
+		// Context was cancelled as expected
+	default:
+		t.Error("Context was not cancelled by Close()")
+	}
+}
+
+func TestAppCloseWithTimeout(t *testing.T) {
+	// Create a context with timeout
+	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+	defer cancel()
+
+	app := &App{
+		ctx:       ctx,
+		ctxCancel: cancel,
+	}
+
+	// Test that Close() works with timeout context
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+}
+
+func TestAppCleanup(t *testing.T) {
+	// Test the legacy Cleanup method
+	ctx, cancel := context.WithCancel(context.Background())
+
+	app := &App{
+		ctx:       ctx,
+		ctxCancel: cancel,
+	}
+
+	// Test that Cleanup() doesn't panic
+	app.Cleanup()
+
+	// Verify context was cancelled
+	select {
+	case <-ctx.Done():
+		// Context was cancelled as expected
+	default:
+		t.Error("Context was not cancelled by Cleanup()")
+	}
+}
+
+func TestAppGetService(t *testing.T) {
+	// Test GetService method
+	app := &App{
+		service: &Service{},
+	}
+
+	service := app.GetService()
+	if service == nil {
+		t.Error("GetService() returned nil")
+	}
+}
+
+func TestAppGetState(t *testing.T) {
+	// Test GetState method
+	app := &App{
+		state: &StateImpl{},
+	}
+
+	state := app.GetState()
+	if state == nil {
+		t.Error("GetState() returned nil")
+	}
+}
+
+func TestAppWithNilFields(t *testing.T) {
+	// Test app with nil fields to ensure no panics
+	app := &App{}
+
+	// Test Close with nil fields
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+
+	// Test Cleanup with nil fields
+	app.Cleanup()
+
+	// Test GetService with nil service
+	service := app.GetService()
+	if service != nil {
+		t.Error("GetService() should return nil when service is nil")
+	}
+
+	// Test GetState with nil state
+	state := app.GetState()
+	// When state is nil, GetState returns a typed nil (*StateImpl)
+	// This is the correct behavior - the interface is not nil but the value is nil
+	_ = state // Just ensure it doesn't panic
+}
+
+func TestAppWithWebsocketConnection(t *testing.T) {
+	// Test app with websocket connection (mocked)
+	app := &App{
+		ctx:       context.Background(),
+		ctxCancel: func() {},
+		conn:      nil, // In real test, this would be a mock websocket
+	}
+
+	// Test that Close() handles nil connection gracefully
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+}
+
+func TestAppRegisterMethods(t *testing.T) {
+	// Test that register methods don't panic with empty app
+	app := &App{
+		entityListeners: make(map[string][]*EntityListener),
+		eventListeners:  make(map[string][]*EventListener),
+	}
+
+	// Test registering empty schedules
+	app.RegisterSchedules()
+
+	// Test registering empty intervals
+	app.RegisterIntervals()
+
+	// Test registering empty entity listeners
+	app.RegisterEntityListeners()
+
+	// Test registering empty event listeners
+	app.RegisterEventListeners()
+}
+
+func TestAppContextCancellation(t *testing.T) {
+	// Test that context cancellation works properly
+	ctx, cancel := context.WithCancel(context.Background())
+
+	app := &App{
+		ctx:       ctx,
+		ctxCancel: cancel,
+	}
+
+	// Cancel context manually
+	cancel()
+
+	// Verify context is done
+	select {
+	case <-ctx.Done():
+		// Expected
+	default:
+		t.Error("Context should be cancelled")
+	}
+
+	// Test Close after manual cancellation
+	err := app.Close()
+	if err != nil {
+		t.Errorf("Close() returned error: %v", err)
+	}
+}