fix: Fix issues with lazy loading and overridden configuration (#2012)

- Closes #2011
This commit is contained in:
Dermot Duffy
2025-04-15 17:10:18 +01:00
committed by GitHub
parent 54ee1e1cf3
commit 168b9b0c90
4 changed files with 62 additions and 48 deletions
@@ -37,13 +37,14 @@ describe('LazyLoadController', () => {
vi.restoreAllMocks();
});
it('should be loaded by default', () => {
it('should be unloaded by default', () => {
const controller = new LazyLoadController(createLitElement());
expect(controller.isLoaded()).toBe(true);
expect(controller.isLoaded()).toBe(false);
});
it('should not be loaded by default when lazy load is set to true', () => {
const controller = new LazyLoadController(createLitElement(), true);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true);
expect(controller.isLoaded()).toBe(false);
});
@@ -61,10 +62,8 @@ describe('LazyLoadController', () => {
});
it('should remove handlers and listeners on destroy', () => {
const controller = new LazyLoadController(createLitElement(), true, [
'unselected',
'hidden',
]);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true, ['unselected', 'hidden']);
controller.hostConnected();
const listener = vi.fn();
@@ -84,9 +83,26 @@ describe('LazyLoadController', () => {
expect(listener).not.toBeCalled();
});
describe('should set configuration', () => {
it('should set loaded if lazy loading set to false', () => {
const listener = vi.fn();
const controller = new LazyLoadController(createLitElement());
controller.addListener(listener);
expect(controller.isLoaded()).toBe(false);
expect(listener).not.toBeCalled();
controller.setConfiguration(false);
expect(controller.isLoaded()).toBe(true);
expect(listener).toBeCalled();
});
});
describe('should lazy load', () => {
it('should load when both visible and intersecting', () => {
const controller = new LazyLoadController(createLitElement(), true);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true);
controller.hostConnected();
expect(controller.isLoaded()).toBe(false);
@@ -102,6 +118,9 @@ describe('LazyLoadController', () => {
describe('should lazy unload', () => {
it('should unload on DOM disconnection', () => {
const controller = new LazyLoadController(createLitElement());
// No lazy loading.
controller.setConfiguration(false);
controller.hostConnected();
expect(controller.isLoaded()).toBe(true);
@@ -127,11 +146,8 @@ describe('LazyLoadController', () => {
])(
'when unload conditions are: %s',
(unloadConditions: LazyUnloadCondition[], shouldBeLoaded: boolean) => {
const controller = new LazyLoadController(
createLitElement(),
true,
unloadConditions,
);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true, unloadConditions);
controller.hostConnected();
callIntersectionHandler(true);
@@ -153,11 +169,8 @@ describe('LazyLoadController', () => {
])(
'when unload conditions are: %s',
(unloadConditions: LazyUnloadCondition[], shouldBeLoaded: boolean) => {
const controller = new LazyLoadController(
createLitElement(),
true,
unloadConditions,
);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true, unloadConditions);
controller.hostConnected();
callIntersectionHandler(true);
@@ -173,10 +186,8 @@ describe('LazyLoadController', () => {
it('should call listeners', () => {
const listener = vi.fn();
const controller = new LazyLoadController(createLitElement(), true, [
'unselected',
'hidden',
]);
const controller = new LazyLoadController(createLitElement());
controller.setConfiguration(true, ['unselected', 'hidden']);
controller.hostConnected();
controller.addListener(listener);