Bug 1523562 [wpt PR 15092] - Escaped EOF, a=testonly

Automatic update from web-platform-tests Escaped EOF Tests <https://github.com/w3c/csswg-drafts/issues/3182> and <https://github.com/w3c/csswg-drafts/issues/1821> -- Use assert_throws, etc Per @domenic's advice, go ahead and use assert_throws on the throwing call, and then just make the should-succeed call directly, as a throw will cause the test to fail anyway. -- Merge pull request #15092 from web-platform-tests/tabatkins-patch-1 Escaped EOF -- wpt-commits: 26f39eb230185a804fabc398810cdcdddefc49ac, f44998b147858a8a2832f66dd32bc9d1ecefb1b3, fc57d7ad7a2942cfa363d5a9b8c6c7d74f5bb693 wpt-pr: 15092
2019-02-01 11:40:35 +00:00 · 2019-02-01 11:40:35 +00:00 · ac878a5ea4
--- a/testing/web-platform/tests/css/css-syntax/escaped-eof.html
+++ b/testing/web-platform/tests/css/css-syntax/escaped-eof.html
@ -0,0 +1,46 @@
+<!doctype html>
+<title>Escaped EOF</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<meta name="author" title="Tab Atkins-Bittner">
+<link rel=help href="https://drafts.csswg.org/css-syntax/#consume-escaped-code-point">
+<link rel=help href="https://drafts.csswg.org/css-syntax/#consume-string-token">
+<link rel=help href="https://drafts.csswg.org/css-syntax/#consume-token">
+
+<style>foo { --foo:foo\</style>
+<style>foo { --foo:1foo\</style>
+<style>foo { --foo:url(foo\</style>
+<style>foo { --foo:"foo\</style>
+
+<script>
+test(()=>{
+    assert_throws(new SyntaxError, ()=>{document.querySelector("#123");}, "numeric hash token is invalid in a selector");
+    document.querySelector("#foo\\"); // escaped-EOF in a hash token is valid in a selector
+}, "Escaped EOF turns into a U+FFFD in a hash token, makes it 'ID' type.");
+
+test(()=>{
+    const sh = document.styleSheets[0];
+    const val = sh.cssRules[0].style.getPropertyValue("--foo");
+    assert_equals("foo\ufffd", val);
+}, "Escaped EOF turns into a U+FFFD in an ident token.");
+
+test(()=>{
+    const sh = document.styleSheets[1];
+    const val = sh.cssRules[0].style.getPropertyValue("--foo");
+    assert_equals("1foo\ufffd", val);
+}, "Escaped EOF turns into a U+FFFD in a dimension token.");
+
+test(()=>{
+    const sh = document.styleSheets[2];
+    const val = sh.cssRules[0].style.getPropertyValue("--foo");
+    assert_equals("url(foo\ufffd)", val);
+}, "Escaped EOF turns into a U+FFFD in a url token.");
+
+test(()=>{
+    const sh = document.styleSheets[3];
+    const val = sh.cssRules[0].style.getPropertyValue("--foo");
+    assert_equals(`"foo"`, val);
+}, "Escaped EOF in a string is ignored.");
+
+</script>