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<!DOCTYPE HTML>
<meta charset="utf-8" />
<title>HTML partial updates - patch range</title>
<link rel=help href="https://github.com/WICG/declarative-partial-updates">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="placeholder">
<span id="first"></span>
<span id="last"></span>
</div>
<style id="style"></style>
<p id="target"></p>
<script>
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchBetween(first, last);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
response.body.pipeTo(writable);
assert_true(placeholder.currentPatch instanceof Patch, "currentPatch should be a Patch right after connecting a stream");
await placeholder.currentPatch.finished;
assert_equals(placeholder.currentPatch, null);
const middle = placeholder.querySelector("#middle");
assert_true(middle instanceof HTMLSpanElement);
assert_equals(middle.textContent, "Content");
assert_equals(middle.previousElementSibling, first);
assert_equals(middle.nextElementSibling, last);
}, "using patchBetween() to insert an element betwen two other elements");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchAfter(first);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
response.body.pipeTo(writable);
assert_true(placeholder.currentPatch instanceof Patch, "currentPatch should be a Patch right after connecting a stream");
await placeholder.currentPatch.finished;
assert_equals(placeholder.currentPatch, null);
const middle = placeholder.querySelector("#middle");
assert_true(middle instanceof HTMLSpanElement);
assert_equals(middle.textContent, "Content");
assert_equals(middle.previousElementSibling, first);
assert_equals(middle.nextElementSibling, null);
}, "using patchAfter() to insert an element after another element");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchBefore(last);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
response.body.pipeTo(writable);
assert_true(placeholder.currentPatch instanceof Patch, "currentPatch should be a Patch right after connecting a stream");
await placeholder.currentPatch.finished;
assert_equals(placeholder.currentPatch, null);
const middle = placeholder.querySelector("#middle");
assert_true(middle instanceof HTMLSpanElement);
assert_equals(middle.textContent, "Content");
assert_equals(middle.previousElementSibling, null);
assert_equals(middle.nextElementSibling, last);
}, "using patchBefore() to insert an element before another element");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchAfter(last);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
response.body.pipeTo(writable);
assert_true(placeholder.currentPatch instanceof Patch, "currentPatch should be a Patch right after connecting a stream");
await placeholder.currentPatch.finished;
assert_equals(placeholder.currentPatch, null);
const middle = placeholder.querySelector("#middle");
assert_true(middle instanceof HTMLSpanElement);
assert_equals(middle.textContent, "Content");
assert_equals(middle.previousElementSibling, last);
assert_equals(middle.nextElementSibling, null);
}, "using patchAfter() to insert an element after the last element");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchBefore(first);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
response.body.pipeTo(writable);
assert_true(placeholder.currentPatch instanceof Patch, "currentPatch should be a Patch right after connecting a stream");
await placeholder.currentPatch.finished;
assert_equals(placeholder.currentPatch, null);
const middle = placeholder.querySelector("#middle");
assert_true(middle instanceof HTMLSpanElement);
assert_equals(middle.textContent, "Content");
assert_equals(middle.previousElementSibling, null);
assert_equals(middle.nextElementSibling, first);
}, "using patchBefore() to insert an element before the first element");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const writable = placeholder.patchBefore(first);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
first.remove();
const {finished} = placeholder.currentPatch;
await promise_rejects_dom(t, "NotFoundError", response.body.pipeTo(writable));
await promise_rejects_dom(t, "NotFoundError", finished);
}, "using patchBefore() should fail if the reference node is removed while patching");
promise_test(async t => {
const placeholder = document.querySelector("#placeholder");
const before = placeholder.innerHTML;
t.add_cleanup(() => { placeholder.innerHTML = before });
const first = document.querySelector("#first");
const last = document.querySelector("#last");
const writable = placeholder.patchBetween(first, last);
const response = new Response("<span id=middle>Content</span>", {headers: {"Content-Type": "text/html"}});
last.remove();
const {finished} = placeholder.currentPatch;
await promise_rejects_dom(t, "NotFoundError", response.body.pipeTo(writable));
await promise_rejects_dom(t, "NotFoundError", finished);
}, "using patchBetween() should fail if the 'before' node is removed while patching");
</script>
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