[blink] Add top-level-await tests

This CL adds test required for landing top-level-await

- Add more tests for module evaluation order
- Add onunhandledrejection since top-level-await introduces more
  promises


Bug: 1022182
Bug: 1096455c
Bug: 1127215
Bug: v8:9344
Change-Id: Ib5502a47e6c0de6143a00f1ae35cde228e13200f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2411927Reviewed-by: Hiroshige Hayashizaki <hiroshige@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806942}

third_party/blink/web_tests/TestExpectations

@@ -1625,10 +1625,12 @@ crbug.com/441840 external/wpt/css/css-shapes/shape-outside/values/shape-outside-
 crbug.com/441840 external/wpt/css/css-shapes/shape-outside/values/shape-outside-polygon-004.html [ Failure ]
 crbug.com/441840 [ Win ] external/wpt/css/css-shapes/shape-outside/values/shape-outside-shape-arguments-000.html [ Failure ]
 
-crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-import.html [ Failure ]
-crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-delayed.html [ Timeout ]
-crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-immediate-promise.html [ Timeout ]
-crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-promise.html [ Timeout ]
+# Fix once top-level-await is enabled
+crbug.com/1022182 external/wpt/html/semantics/scripting-1/the-script-element/module/evaluation-order-4-tla.html [ Skip ]
+crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-delayed.html [ Skip ]
+crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-immediate-promise.html [ Skip ]
+crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-import.html [ Skip ]
+crbug.com/1022182 external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-promise.html [ Skip ]
 
 crbug.com/676270 [ Mac ] external/wpt/css/css-text/hyphens/hyphens-auto-001.html [ Failure ]
 crbug.com/1022415 [ Mac ] external/wpt/css/css-text/hyphens/hyphens-auto-010.html [ Failure ]

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/choice-of-error-1.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "Parse errors in different files should be reported " +

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/choice-of-error-2.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "Instantiation errors in different files should be reported " +

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/choice-of-error-3.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "Evaluation errors are cached in intermediate module scripts");

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/error-type-1.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "network error has higher priority than parse error");

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/error-type-2.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "parse error has higher priority than instantiation error");

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/error-type-3.html

@@ -9,6 +9,7 @@
     window.log = [];
 
     window.addEventListener("error", ev => log.push(ev.error));
+    window.addEventListener("onunhandledrejection", unreachable);
 
     const test_load = async_test(
         "instantiation error has higher priority than evaluation error");

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/evaluation-order-4-tla.html

+<!DOCTYPE html>
+<title>Testing evaluation order</title>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+    setup({allow_uncaught_exception: true});
+
+    window.log = [];
+
+    window.addEventListener("error", ev => testDone());
+    window.addEventListener("onunhandledrejection", unreachable);
+
+    const test_load = async_test("Test evaluation order of modules");
+
+    window.addEventListener("load", ev => log.push("window-load"));
+
+    function unreachable() { log.push("unexpected"); }
+    function testDone() {
+      test_load.step(() => {
+        assert_array_equals(log, [
+             "step-4.1-1", "step-4.1-2", "microtask-4.1",
+             "script-load", "window-load",
+             "step-4.2-1", "step-4.2-2", "microtask-4.2",
+            ]);
+      });
+      test_load.done();
+    }
+</script>
+
+<script type="module" src="evaluation-order-4.1.mjs"
+    onerror="unreachable()" onload="log.push('script-load')">
+ </script>

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/evaluation-order-4.1.mjs

+log.push("step-4.1-1");
+queueMicrotask(() => log.push("microtask-4.1"));
+log.push("step-4.1-2");
+
+await import("./evaluation-order-4.2.mjs");
+
+// Not happening as we throw in the above module.
+log.push("step-4.1-3");

third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/module/evaluation-order-4.2.mjs

+log.push("step-4.2-1");
+queueMicrotask(() => log.push("microtask-4.2"));
+log.push("step-4.2-2");
+
+throw new Error("error");

third_party/blink/web_tests/external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-delayed.html

@@ -10,7 +10,9 @@ async_test(t => {
 
   const iframe = document.createElement("iframe");
 
+  iframe.onunhandledrejection = t.unreached_func("Unhandled promise rejection detected");
   iframe.onerror = t.unreached_func("Error loading iframe");
+
   let onLoadWasCalled = false;
   iframe.onload = t.step_func(() => {
     assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");

third_party/blink/web_tests/external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-import.html

@@ -6,17 +6,20 @@
 <script>
 async_test(t => {
   const iframe = document.createElement("iframe");
-
   iframe.onerror = t.unreached_func("Error loading iframe");
-  let testEndWasCalled = false;
-  document.addEventListener("documentWriteDone", t.step_func(() => {
-    assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");
-    testEndWasCalled = true;
-  }));
-  iframe.onload = t.step_func_done(() => {
-    assert_true(testEndWasCalled, 'documentWriteDone event was not sent');
+
+  let onLoadWasCalled = false;
+
+  iframe.onload = t.step_func(() => {
+    onLoadWasCalled = true;
     assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");
+    // Don't call the event handler another time after document.write.
+    iframe.onload = null;
   });
+  document.addEventListener("documentWriteDone", t.step_func_done(() => {
+    assert_true(onLoadWasCalled, "onload must be called");
+    assert_equals(iframe.contentDocument.body.textContent, "document.write body contents\n");
+  }));
 
   iframe.src = "module-tla-import-iframe.html";
   document.body.appendChild(iframe);

third_party/blink/web_tests/external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-promise-iframe.html

 <!doctype html>
 <script type=module>
 await new Promise(resolve => {
-  window.parent.document.test.step_timeout(resolve, 0));
+  window.parent.document.test.step_timeout(resolve, 0);
   document.write("document.write body contents\n");
   document.close();
   window.parent.document.dispatchEvent(new CustomEvent("documentWriteDone"));
 });
 </script>
+
 Initial body contents

third_party/blink/web_tests/external/wpt/html/webappapis/dynamic-markup-insertion/document-write/module-tla-promise.html

@@ -9,18 +9,14 @@ async_test(t => {
   document.test = t;
 
   const iframe = document.createElement("iframe");
-
   iframe.onerror = t.unreached_func("Error loading iframe");
-  let onLoadWasCalled = false;
-  iframe.onload = t.step_func(() => {
-    assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");
-    iframe.onload = null;
-    onLoadWasCalled = true;
-  });
-  document.addEventListener("documentWriteDone", t.step_func_done(() => {
-    assert_true(onLoadWasCalled);
+
+  document.addEventListener("documentWriteDone", t.step_func(() => {
     assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");
   }));
+  iframe.onload = t.step_func_done(() => {
+    assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");
+  });
 
   iframe.src = "module-tla-promise-iframe.html";
   document.body.appendChild(iframe);