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Test Info:
/* Any copyright is dedicated to the Public Domain.
add_task(async function () {
const tab = await addTab("about:blank");
const target = await createAndAttachTargetForTab(tab);
const tab2 = await addTab("about:blank");
const target2 = await createAndAttachTargetForTab(tab2);
info("Test the targetFront attribute for the root");
const { client } = target;
is(
client.mainRoot.targetFront,
null,
"got null from the targetFront attribute for the root"
);
is(
client.mainRoot.parentFront,
null,
"got null from the parentFront attribute for the root"
);
info("Test getting a front twice");
const getAccessibilityFront = await target.getFront("accessibility");
const getAccessibilityFront2 = await target.getFront("accessibility");
is(
getAccessibilityFront,
getAccessibilityFront2,
"got the same front when calling getFront twice"
);
is(
getAccessibilityFront.targetFront,
target,
"got the correct targetFront attribute from the front"
);
is(
getAccessibilityFront2.targetFront,
target,
"got the correct targetFront attribute from the front"
);
is(
getAccessibilityFront.parentFront,
target,
"got the correct parentFront attribute from the front"
);
is(
getAccessibilityFront2.parentFront,
target,
"got the correct parentFront attribute from the front"
);
info("Test getting a front on different targets");
const target1Front = await target.getFront("accessibility");
const target2Front = await target2.getFront("accessibility");
is(
target1Front !== target2Front,
true,
"got different fronts when calling getFront on different targets"
);
is(
target1Front.targetFront !== target2Front.targetFront,
true,
"got different targetFront from different fronts from different targets"
);
is(
target2Front.targetFront,
target2,
"got the correct targetFront attribute from the front"
);
info("Test async front retrieval");
// use two fronts that are initialized one after the other.
const asyncFront1 = target.getFront("accessibility");
const asyncFront2 = target.getFront("accessibility");
info("waiting on async fronts returns a real front");
const awaitedAsyncFront1 = await asyncFront1;
const awaitedAsyncFront2 = await asyncFront2;
is(
awaitedAsyncFront1,
awaitedAsyncFront2,
"got the same front when requesting the front first async then sync"
);
await target.destroy();
await target2.destroy();
info("destroying a front immediately is possible");
await testDestroy();
});
async function testDestroy() {
// initialize a clean target
const tab = await addTab("about:blank");
const target = await createAndAttachTargetForTab(tab);
// do not wait for the front to finish loading
target.getFront("accessibility");
try {
await target.destroy();
ok(
true,
"calling destroy on an async front instantiated with getFront does not throw"
);
} catch (e) {
ok(
false,
"calling destroy on an async front instantiated with getFront does not throw"
);
}
}