third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html - Issue 2560253004: IntersectionObserver: convert tests to testharness.js

Unified Diff: third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html

Issue 2560253004: IntersectionObserver: convert tests to testharness.js (Closed)

Patch Set: Formatting tweaks and explicit resource paths Created 4 years ago

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« third_party/WebKit/LayoutTests/intersection-observer/timestamp.html ('K') | « third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html ('k') | third_party/WebKit/LayoutTests/resources/intersection-observer-helper-functions.js » ('j') | third_party/WebKit/LayoutTests/resources/intersection-observer-helper-functions.js » ('J')
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Index: third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html

diff --git a/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html b/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html

index 1bc785f2ab7a99b2ea69ffbb0a1b04b127aa4f0b..8e70e624143020c833670a2aa546dcb6041872e9 100644

--- a/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html

+++ b/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-visible.html

@@ -1,24 +1,42 @@

<!DOCTYPE html>

-<script src="../resources/intersection-observer-helper-functions.js"></script>

+<script src="./resources/intersection-observer-test-utils.js"></script>

-<title>Ensure that a visible zero-area element is given the correct intersection ratio</title>

+<style>

+pre, #log {

+ position: absolute;

+ top: 0;

+ left: 200px;

+#target {

+ width: 0px;

+ height: 0px;

+</style>

-<div id='target' style='width: 0px; height: 0px'</div>"

+<div id='target'></div>

-'use strict';

+var entries = [];

-async_test(t => {

- let target = document.getElementById('target');

- let entries = [];

- new IntersectionObserver(changes => {

- entries.push(...changes);

- }).observe(target);

- waitForNotification(t.step_func_done(() => {

- assert_equals(entries.length, 1);

- assert_equals(entries[0].intersectionRatio, 1);

- }));

-});

+runTestCycle(function() {

+ assert_equals(window.innerWidth, 800, "Window must be 800 pixels wide.");

+ assert_equals(window.innerHeight, 600, "Window must be 600 pixels high.");

+ var target = document.getElementById('target');

+ assert_true(!!target, "target exists");

+ var observer = new IntersectionObserver(function(changes) {

+ entries = entries.concat(changes)

+ });

+ observer.observe(target);

+ entries = entries.concat(observer.takeRecords());

+ assert_equals(entries.length, 0, "No initial notifications.");

+ runTestCycle(step0, "First rAF should generate a notification.");

+}, "Ensure that a zero-area target intersecting root generates a notification with intersectionRatio == 1");

+function step0() {

+ assert_equals(entries.length, 1, "One notification.");

+ assert_equals(entries[0].intersectionRatio, 1, "intersectionRatio == 1");

</script>