Attachment 371578 Details for Bug 197908 – test cases

[patch] test cases

win-element-leak.diff (text/plain), 22.03 KB, created by cathiechen on 2019-06-07 02:49:28 PDT

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Creator: cathiechen

Created: 2019-06-07 02:49:28 PDT

Size: 22.03 KB

patch

obsolete

>diff --git a/LayoutTests/resize-observer/element-leak-with-RO-20-expected.txt b/LayoutTests/resize-observer/element-leak-with-RO-20-expected.txt
>new file mode 100644
>index 0000000000..f8cda4adac
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-with-RO-20-expected.txt
>@@ -0,0 +1,24 @@
>+CONSOLE MESSAGE: line 31: Got notified: 1
>+CONSOLE MESSAGE: line 31: Got notified: 2
>+CONSOLE MESSAGE: line 31: Got notified: 3
>+CONSOLE MESSAGE: line 31: Got notified: 4
>+CONSOLE MESSAGE: line 31: Got notified: 5
>+CONSOLE MESSAGE: line 31: Got notified: 6
>+CONSOLE MESSAGE: line 31: Got notified: 7
>+CONSOLE MESSAGE: line 31: Got notified: 8
>+CONSOLE MESSAGE: line 31: Got notified: 9
>+CONSOLE MESSAGE: line 31: Got notified: 10
>+CONSOLE MESSAGE: line 31: Got notified: 11
>+CONSOLE MESSAGE: line 31: Got notified: 12
>+CONSOLE MESSAGE: line 31: Got notified: 13
>+CONSOLE MESSAGE: line 31: Got notified: 14
>+CONSOLE MESSAGE: line 31: Got notified: 15
>+CONSOLE MESSAGE: line 31: Got notified: 16
>+CONSOLE MESSAGE: line 31: Got notified: 17
>+CONSOLE MESSAGE: line 31: Got notified: 18
>+CONSOLE MESSAGE: line 31: Got notified: 19
>+CONSOLE MESSAGE: line 31: Got notified: 20
>+
>+PASS ResizeObserver implemented 
>+PASS Test elements leak with 20 iframes 
>+
>diff --git a/LayoutTests/resize-observer/element-leak-with-RO-20.html b/LayoutTests/resize-observer/element-leak-with-RO-20.html
>new file mode 100644
>index 0000000000..dbbf4ab685
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-with-RO-20.html
>@@ -0,0 +1,86 @@
>+<!DOCTYPE html>
>+<html>
>+<meta name="timeout" content="long">
>+<head>
>+<script src="../resources/testharness.js"></script>
>+<script src="../resources/testharnessreport.js"></script>
>+<script src="../resources/gc.js"></script>
>+</head>
>+<body>
>+<script>
>+setup({ explicit_timeout: true });
>+
>+let iframeCount = 20;
>+function prepareFrame() {
>+    return new Promise(function(resolve, reject) {
>+        let container = document.createElement("div");
>+        for (let i = 0; i < iframeCount; ++i) {
>+            let ifrm = document.createElement("iframe");
>+            ifrm.style.height = "1px";
>+            ifrm.setAttribute("src", "resources/element-leak-frame-with-RO.html");
>+            container.appendChild(ifrm);
>+        }
>+        document.body.appendChild(container);
>+
>+        let notifyTimer = setTimeout(() => reject("prepareFrame: wait Notified timed out"), 100000);
>+        let notifyCount = 0;
>+        window.addEventListener('message', event => {
>+            switch(event.data) {
>+            case 'Notified':
>+                notifyCount++;
>+                console.log("Got notified: " + notifyCount);
>+                if (notifyCount == iframeCount) {
>+                    clearTimeout(notifyTimer);
>+                    resolve("All iframes notified");
>+                }
>+            break;
>+            }
>+        }, false);
>+    })    
>+}
>+
>+function testElementLeak(resolve, reject) {
>+    return new Promise(function(resolve, reject) {
>+        let documentIdentifierArray = new Array(iframeCount);
>+        let count = 0;
>+        document.querySelectorAll('iframe').forEach(iframe => {
>+            documentIdentifierArray[count++] = internals.documentIdentifier(iframe.contentDocument);
>+            iframe.remove();
>+        });
>+
>+        let gcTimer = setTimeout(() => reject("testElementLeak timed out"), 100000);
>+        let handle = setInterval(function() {
>+            gc();
>+            documentIdentifierArray.forEach(function(frameDocumentIdentifier) {
>+                if (internals && !internals.isDocumentAlive(frameDocumentIdentifier)) {
>+                    clearInterval(handle);
>+                    clearTimeout(gcTimer);
>+                    documentIdentifierArray = [];
>+                    resolve("Detected document release.");
>+                }
>+            });
>+        }, 10);
>+    });
>+}
>+
>+function startTest() {
>+    return prepareFrame().then(function(){
>+        return testElementLeak().catch(function(result){
>+            assert_false(true, "testElementLeak rejection: " + result);
>+        });
>+    }).catch(function(result){
>+        assert_false(true, "prepareFrame rejection: " + result);
>+    });
>+}
>+
>+test(_ => {
>+    assert_own_property(window, "ResizeObserver");
>+}, "ResizeObserver implemented");
>+
>+promise_test(async () => {
>+    return startTest();
>+}, 'Test elements leak with 20 iframes');
>+
>+</script>
>+</body>
>+</html>
>diff --git a/LayoutTests/resize-observer/element-leak-with-RO-50-expected.txt b/LayoutTests/resize-observer/element-leak-with-RO-50-expected.txt
>new file mode 100644
>index 0000000000..2ea5c6544d
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-with-RO-50-expected.txt
>@@ -0,0 +1,54 @@
>+CONSOLE MESSAGE: line 31: Got notified: 1
>+CONSOLE MESSAGE: line 31: Got notified: 2
>+CONSOLE MESSAGE: line 31: Got notified: 3
>+CONSOLE MESSAGE: line 31: Got notified: 4
>+CONSOLE MESSAGE: line 31: Got notified: 5
>+CONSOLE MESSAGE: line 31: Got notified: 6
>+CONSOLE MESSAGE: line 31: Got notified: 7
>+CONSOLE MESSAGE: line 31: Got notified: 8
>+CONSOLE MESSAGE: line 31: Got notified: 9
>+CONSOLE MESSAGE: line 31: Got notified: 10
>+CONSOLE MESSAGE: line 31: Got notified: 11
>+CONSOLE MESSAGE: line 31: Got notified: 12
>+CONSOLE MESSAGE: line 31: Got notified: 13
>+CONSOLE MESSAGE: line 31: Got notified: 14
>+CONSOLE MESSAGE: line 31: Got notified: 15
>+CONSOLE MESSAGE: line 31: Got notified: 16
>+CONSOLE MESSAGE: line 31: Got notified: 17
>+CONSOLE MESSAGE: line 31: Got notified: 18
>+CONSOLE MESSAGE: line 31: Got notified: 19
>+CONSOLE MESSAGE: line 31: Got notified: 20
>+CONSOLE MESSAGE: line 31: Got notified: 21
>+CONSOLE MESSAGE: line 31: Got notified: 22
>+CONSOLE MESSAGE: line 31: Got notified: 23
>+CONSOLE MESSAGE: line 31: Got notified: 24
>+CONSOLE MESSAGE: line 31: Got notified: 25
>+CONSOLE MESSAGE: line 31: Got notified: 26
>+CONSOLE MESSAGE: line 31: Got notified: 27
>+CONSOLE MESSAGE: line 31: Got notified: 28
>+CONSOLE MESSAGE: line 31: Got notified: 29
>+CONSOLE MESSAGE: line 31: Got notified: 30
>+CONSOLE MESSAGE: line 31: Got notified: 31
>+CONSOLE MESSAGE: line 31: Got notified: 32
>+CONSOLE MESSAGE: line 31: Got notified: 33
>+CONSOLE MESSAGE: line 31: Got notified: 34
>+CONSOLE MESSAGE: line 31: Got notified: 35
>+CONSOLE MESSAGE: line 31: Got notified: 36
>+CONSOLE MESSAGE: line 31: Got notified: 37
>+CONSOLE MESSAGE: line 31: Got notified: 38
>+CONSOLE MESSAGE: line 31: Got notified: 39
>+CONSOLE MESSAGE: line 31: Got notified: 40
>+CONSOLE MESSAGE: line 31: Got notified: 41
>+CONSOLE MESSAGE: line 31: Got notified: 42
>+CONSOLE MESSAGE: line 31: Got notified: 43
>+CONSOLE MESSAGE: line 31: Got notified: 44
>+CONSOLE MESSAGE: line 31: Got notified: 45
>+CONSOLE MESSAGE: line 31: Got notified: 46
>+CONSOLE MESSAGE: line 31: Got notified: 47
>+CONSOLE MESSAGE: line 31: Got notified: 48
>+CONSOLE MESSAGE: line 31: Got notified: 49
>+CONSOLE MESSAGE: line 31: Got notified: 50
>+
>+PASS ResizeObserver implemented 
>+PASS Test elements leak with 50 iframes 
>+
>diff --git a/LayoutTests/resize-observer/element-leak-with-RO-50.html b/LayoutTests/resize-observer/element-leak-with-RO-50.html
>new file mode 100644
>index 0000000000..c0dd0093e4
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-with-RO-50.html
>@@ -0,0 +1,86 @@
>+<!DOCTYPE html>
>+<html>
>+<meta name="timeout" content="long">
>+<head>
>+<script src="../resources/testharness.js"></script>
>+<script src="../resources/testharnessreport.js"></script>
>+<script src="../resources/gc.js"></script>
>+</head>
>+<body>
>+<script>
>+setup({ explicit_timeout: true });
>+
>+let iframeCount = 50;
>+function prepareFrame() {
>+    return new Promise(function(resolve, reject) {
>+        let container = document.createElement("div");
>+        for (let i = 0; i < iframeCount; ++i) {
>+            let ifrm = document.createElement("iframe");
>+            ifrm.style.height = "1px";
>+            ifrm.setAttribute("src", "resources/element-leak-frame-with-RO.html");
>+            container.appendChild(ifrm);
>+        }
>+        document.body.appendChild(container);
>+
>+        let notifyTimer = setTimeout(() => reject("prepareFrame: wait Notified timed out"), 100000);
>+        let notifyCount = 0;
>+        window.addEventListener('message', event => {
>+            switch(event.data) {
>+            case 'Notified':
>+                notifyCount++;
>+                console.log("Got notified: " + notifyCount);
>+                if (notifyCount == iframeCount) {
>+                    clearTimeout(notifyTimer);
>+                    resolve("All iframes notified");
>+                }
>+            break;
>+            }
>+        }, false);
>+    })    
>+}
>+
>+function testElementLeak(resolve, reject) {
>+    return new Promise(function(resolve, reject) {
>+        let documentIdentifierArray = new Array(iframeCount);
>+        let count = 0;
>+        document.querySelectorAll('iframe').forEach(iframe => {
>+            documentIdentifierArray[count++] = internals.documentIdentifier(iframe.contentDocument);
>+            iframe.remove();
>+        });
>+
>+        let gcTimer = setTimeout(() => reject("testElementLeak timed out"), 100000);
>+        let handle = setInterval(function() {
>+            gc();
>+            documentIdentifierArray.forEach(function(frameDocumentIdentifier) {
>+                if (internals && !internals.isDocumentAlive(frameDocumentIdentifier)) {
>+                    clearInterval(handle);
>+                    clearTimeout(gcTimer);
>+                    documentIdentifierArray = [];
>+                    resolve("Detected document release.");
>+                }
>+            });
>+        }, 10);
>+    });
>+}
>+
>+function startTest() {
>+    return prepareFrame().then(function(){
>+        return testElementLeak().catch(function(result){
>+            assert_false(true, "testElementLeak rejection: " + result);
>+        });
>+    }).catch(function(result){
>+        assert_false(true, "prepareFrame rejection: " + result);
>+    });
>+}
>+
>+test(_ => {
>+    assert_own_property(window, "ResizeObserver");
>+}, "ResizeObserver implemented");
>+
>+promise_test(async () => {
>+    return startTest();
>+}, 'Test elements leak with 50 iframes');
>+
>+</script>
>+</body>
>+</html>
>diff --git a/LayoutTests/resize-observer/element-leak-without-RO-20-expected.txt b/LayoutTests/resize-observer/element-leak-without-RO-20-expected.txt
>new file mode 100644
>index 0000000000..f8cda4adac
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-without-RO-20-expected.txt
>@@ -0,0 +1,24 @@
>+CONSOLE MESSAGE: line 31: Got notified: 1
>+CONSOLE MESSAGE: line 31: Got notified: 2
>+CONSOLE MESSAGE: line 31: Got notified: 3
>+CONSOLE MESSAGE: line 31: Got notified: 4
>+CONSOLE MESSAGE: line 31: Got notified: 5
>+CONSOLE MESSAGE: line 31: Got notified: 6
>+CONSOLE MESSAGE: line 31: Got notified: 7
>+CONSOLE MESSAGE: line 31: Got notified: 8
>+CONSOLE MESSAGE: line 31: Got notified: 9
>+CONSOLE MESSAGE: line 31: Got notified: 10
>+CONSOLE MESSAGE: line 31: Got notified: 11
>+CONSOLE MESSAGE: line 31: Got notified: 12
>+CONSOLE MESSAGE: line 31: Got notified: 13
>+CONSOLE MESSAGE: line 31: Got notified: 14
>+CONSOLE MESSAGE: line 31: Got notified: 15
>+CONSOLE MESSAGE: line 31: Got notified: 16
>+CONSOLE MESSAGE: line 31: Got notified: 17
>+CONSOLE MESSAGE: line 31: Got notified: 18
>+CONSOLE MESSAGE: line 31: Got notified: 19
>+CONSOLE MESSAGE: line 31: Got notified: 20
>+
>+PASS ResizeObserver implemented 
>+PASS Test elements leak with 20 iframes 
>+
>diff --git a/LayoutTests/resize-observer/element-leak-without-RO-20.html b/LayoutTests/resize-observer/element-leak-without-RO-20.html
>new file mode 100644
>index 0000000000..41a740da52
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-without-RO-20.html
>@@ -0,0 +1,86 @@
>+<!DOCTYPE html>
>+<html>
>+<meta name="timeout" content="long">
>+<head>
>+<script src="../resources/testharness.js"></script>
>+<script src="../resources/testharnessreport.js"></script>
>+<script src="../resources/gc.js"></script>
>+</head>
>+<body>
>+<script>
>+setup({ explicit_timeout: true });
>+
>+let iframeCount = 20;
>+function prepareFrame() {
>+    return new Promise(function(resolve, reject) {
>+        let container = document.createElement("div");
>+        for (let i = 0; i < iframeCount; ++i) {
>+            let ifrm = document.createElement("iframe");
>+            ifrm.style.height = "1px";
>+            ifrm.setAttribute("src", "resources/element-leak-frame-without-RO.html");
>+            container.appendChild(ifrm);
>+        }
>+        document.body.appendChild(container);
>+
>+        let notifyTimer = setTimeout(() => reject("prepareFrame: wait Notified timed out"), 100000);
>+        let notifyCount = 0;
>+        window.addEventListener('message', event => {
>+            switch(event.data) {
>+            case 'Notified':
>+                notifyCount++;
>+                console.log("Got notified: " + notifyCount);
>+                if (notifyCount == iframeCount) {
>+                    clearTimeout(notifyTimer);
>+                    resolve("All iframes notified");
>+                }
>+            break;
>+            }
>+        }, false);
>+    })    
>+}
>+
>+function testElementLeak(resolve, reject) {
>+    return new Promise(function(resolve, reject) {
>+        let documentIdentifierArray = new Array(iframeCount);
>+        let count = 0;
>+        document.querySelectorAll('iframe').forEach(iframe => {
>+            documentIdentifierArray[count++] = internals.documentIdentifier(iframe.contentDocument);
>+            iframe.remove();
>+        });
>+
>+        let gcTimer = setTimeout(() => reject("testElementLeak timed out"), 100000);
>+        let handle = setInterval(function() {
>+            gc();
>+            documentIdentifierArray.forEach(function(frameDocumentIdentifier) {
>+                if (internals && !internals.isDocumentAlive(frameDocumentIdentifier)) {
>+                    clearInterval(handle);
>+                    clearTimeout(gcTimer);
>+                    documentIdentifierArray = [];
>+                    resolve("Detected document release.");
>+                }
>+            });
>+        }, 10);
>+    });
>+}
>+
>+function startTest() {
>+    return prepareFrame().then(function(){
>+        return testElementLeak().catch(function(result){
>+            assert_false(true, "testElementLeak rejection: " + result);
>+        });
>+    }).catch(function(result){
>+        assert_false(true, "prepareFrame rejection: " + result);
>+    });
>+}
>+
>+test(_ => {
>+    assert_own_property(window, "ResizeObserver");
>+}, "ResizeObserver implemented");
>+
>+promise_test(async () => {
>+    return startTest();
>+}, 'Test elements leak with 20 iframes');
>+
>+</script>
>+</body>
>+</html>
>diff --git a/LayoutTests/resize-observer/element-leak-without-RO-50-expected.txt b/LayoutTests/resize-observer/element-leak-without-RO-50-expected.txt
>new file mode 100644
>index 0000000000..2ea5c6544d
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-without-RO-50-expected.txt
>@@ -0,0 +1,54 @@
>+CONSOLE MESSAGE: line 31: Got notified: 1
>+CONSOLE MESSAGE: line 31: Got notified: 2
>+CONSOLE MESSAGE: line 31: Got notified: 3
>+CONSOLE MESSAGE: line 31: Got notified: 4
>+CONSOLE MESSAGE: line 31: Got notified: 5
>+CONSOLE MESSAGE: line 31: Got notified: 6
>+CONSOLE MESSAGE: line 31: Got notified: 7
>+CONSOLE MESSAGE: line 31: Got notified: 8
>+CONSOLE MESSAGE: line 31: Got notified: 9
>+CONSOLE MESSAGE: line 31: Got notified: 10
>+CONSOLE MESSAGE: line 31: Got notified: 11
>+CONSOLE MESSAGE: line 31: Got notified: 12
>+CONSOLE MESSAGE: line 31: Got notified: 13
>+CONSOLE MESSAGE: line 31: Got notified: 14
>+CONSOLE MESSAGE: line 31: Got notified: 15
>+CONSOLE MESSAGE: line 31: Got notified: 16
>+CONSOLE MESSAGE: line 31: Got notified: 17
>+CONSOLE MESSAGE: line 31: Got notified: 18
>+CONSOLE MESSAGE: line 31: Got notified: 19
>+CONSOLE MESSAGE: line 31: Got notified: 20
>+CONSOLE MESSAGE: line 31: Got notified: 21
>+CONSOLE MESSAGE: line 31: Got notified: 22
>+CONSOLE MESSAGE: line 31: Got notified: 23
>+CONSOLE MESSAGE: line 31: Got notified: 24
>+CONSOLE MESSAGE: line 31: Got notified: 25
>+CONSOLE MESSAGE: line 31: Got notified: 26
>+CONSOLE MESSAGE: line 31: Got notified: 27
>+CONSOLE MESSAGE: line 31: Got notified: 28
>+CONSOLE MESSAGE: line 31: Got notified: 29
>+CONSOLE MESSAGE: line 31: Got notified: 30
>+CONSOLE MESSAGE: line 31: Got notified: 31
>+CONSOLE MESSAGE: line 31: Got notified: 32
>+CONSOLE MESSAGE: line 31: Got notified: 33
>+CONSOLE MESSAGE: line 31: Got notified: 34
>+CONSOLE MESSAGE: line 31: Got notified: 35
>+CONSOLE MESSAGE: line 31: Got notified: 36
>+CONSOLE MESSAGE: line 31: Got notified: 37
>+CONSOLE MESSAGE: line 31: Got notified: 38
>+CONSOLE MESSAGE: line 31: Got notified: 39
>+CONSOLE MESSAGE: line 31: Got notified: 40
>+CONSOLE MESSAGE: line 31: Got notified: 41
>+CONSOLE MESSAGE: line 31: Got notified: 42
>+CONSOLE MESSAGE: line 31: Got notified: 43
>+CONSOLE MESSAGE: line 31: Got notified: 44
>+CONSOLE MESSAGE: line 31: Got notified: 45
>+CONSOLE MESSAGE: line 31: Got notified: 46
>+CONSOLE MESSAGE: line 31: Got notified: 47
>+CONSOLE MESSAGE: line 31: Got notified: 48
>+CONSOLE MESSAGE: line 31: Got notified: 49
>+CONSOLE MESSAGE: line 31: Got notified: 50
>+
>+PASS ResizeObserver implemented 
>+PASS Test elements leak with 50 iframes 
>+
>diff --git a/LayoutTests/resize-observer/element-leak-without-RO-50.html b/LayoutTests/resize-observer/element-leak-without-RO-50.html
>new file mode 100644
>index 0000000000..8e9ea12283
>--- /dev/null
>+++ b/LayoutTests/resize-observer/element-leak-without-RO-50.html
>@@ -0,0 +1,86 @@
>+<!DOCTYPE html>
>+<html>
>+<meta name="timeout" content="long">
>+<head>
>+<script src="../resources/testharness.js"></script>
>+<script src="../resources/testharnessreport.js"></script>
>+<script src="../resources/gc.js"></script>
>+</head>
>+<body>
>+<script>
>+setup({ explicit_timeout: true });
>+
>+let iframeCount = 50;
>+function prepareFrame() {
>+    return new Promise(function(resolve, reject) {
>+        let container = document.createElement("div");
>+        for (let i = 0; i < iframeCount; ++i) {
>+            let ifrm = document.createElement("iframe");
>+            ifrm.style.height = "1px";
>+            ifrm.setAttribute("src", "resources/element-leak-frame-without-RO.html");
>+            container.appendChild(ifrm);
>+        }
>+        document.body.appendChild(container);
>+
>+        let notifyTimer = setTimeout(() => reject("prepareFrame: wait Notified timed out"), 100000);
>+        let notifyCount = 0;
>+        window.addEventListener('message', event => {
>+            switch(event.data) {
>+            case 'Notified':
>+                notifyCount++;
>+                console.log("Got notified: " + notifyCount);
>+                if (notifyCount == iframeCount) {
>+                    clearTimeout(notifyTimer);
>+                    resolve("All iframes notified");
>+                }
>+            break;
>+            }
>+        }, false);
>+    })    
>+}
>+
>+function testElementLeak(resolve, reject) {
>+    return new Promise(function(resolve, reject) {
>+        let documentIdentifierArray = new Array(iframeCount);
>+        let count = 0;
>+        document.querySelectorAll('iframe').forEach(iframe => {
>+            documentIdentifierArray[count++] = internals.documentIdentifier(iframe.contentDocument);
>+            iframe.remove();
>+        });
>+
>+        let gcTimer = setTimeout(() => reject("testElementLeak timed out"), 100000);
>+        let handle = setInterval(function() {
>+            gc();
>+            documentIdentifierArray.forEach(function(frameDocumentIdentifier) {
>+                if (internals && !internals.isDocumentAlive(frameDocumentIdentifier)) {
>+                    clearInterval(handle);
>+                    clearTimeout(gcTimer);
>+                    documentIdentifierArray = [];
>+                    resolve("Detected document release.");
>+                }
>+            });
>+        }, 10);
>+    });
>+}
>+
>+function startTest() {
>+    return prepareFrame().then(function(){
>+        return testElementLeak().catch(function(result){
>+            assert_false(true, "testElementLeak rejection: " + result);
>+        });
>+    }).catch(function(result){
>+        assert_false(true, "prepareFrame rejection: " + result);
>+    });
>+}
>+
>+test(_ => {
>+    assert_own_property(window, "ResizeObserver");
>+}, "ResizeObserver implemented");
>+
>+promise_test(async () => {
>+    return startTest();
>+}, 'Test elements leak with 50 iframes');
>+
>+</script>
>+</body>
>+</html>
>diff --git a/LayoutTests/resize-observer/resources/element-leak-frame-with-RO.html b/LayoutTests/resize-observer/resources/element-leak-frame-with-RO.html
>new file mode 100644
>index 0000000000..b162d44d42
>--- /dev/null
>+++ b/LayoutTests/resize-observer/resources/element-leak-frame-with-RO.html
>@@ -0,0 +1,26 @@
>+<!DOCTYPE html>
>+<body></body>
>+<script src="../../resources/gc.js"></script>
>+<script type="text/javascript">
>+
>+const targetCount = 1000;
>+var resizeObserver = new ResizeObserver( entries => {
>+    for (let entry of entries)
>+        entry.target.myEntry = entry;
>+
>+    resizeObserver.disconnect();
>+    document.querySelectorAll('div').forEach(target => target.remove());
>+    // Make sure targets be added to m_opaqueRoots.
>+    gc();
>+    parent.postMessage('Notified', '*');
>+});
>+
>+for (let i = 0; i < targetCount; ++i) {
>+    var target = document.createElement('div');
>+    document.body.appendChild(target);
>+}
>+
>+document.querySelectorAll('div').forEach(target => resizeObserver.observe(target));
>+
>+</script>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/resize-observer/resources/element-leak-frame-without-RO.html b/LayoutTests/resize-observer/resources/element-leak-frame-without-RO.html
>new file mode 100644
>index 0000000000..eaae099d09
>--- /dev/null
>+++ b/LayoutTests/resize-observer/resources/element-leak-frame-without-RO.html
>@@ -0,0 +1,19 @@
>+<!DOCTYPE html>
>+<body></body>
>+<script src="../../resources/gc.js"></script>
>+<script type="text/javascript">
>+
>+const targetCount = 1000;
>+for (let i = 0; i < targetCount; ++i) {
>+    var target = document.createElement('div');
>+    document.body.appendChild(target);
>+}
>+
>+setTimeout(function() {
>+	document.querySelectorAll('div').forEach(target => target.remove());
>+	gc();
>+    parent.postMessage('Notified', '*');
>+}, 100);
>+
>+</script>
>+</html>
>\ No newline at end of file

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Attachments on bug 197908: 369932 | 369933 | 369948 | 369954 | 370042 | 370045 | 371578 | 371595 | 371597 | 371645 | 371650