Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 21 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /trusted-types/trusted-types-from-literal.tentative.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<head>
<link rel="author" title="Daniel Vogelheim" href="mailto:vogelheim@chromium.org"></link>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
</head>
<body>
<script>
[ TrustedHTML, TrustedScript, TrustedScriptURL ].forEach(type => {
test(t => {
assert_true("fromLiteral" in type);
}, `${type.name}.fromLiteral is supported`);
test(t => {
const c = type.fromLiteral`abc`;
assert_true(c instanceof type);
assert_equals(c.toString(), "abc");
}, `${type.name}.fromLiteral: Basic string literal works.`);
test(t => {
const c = type.fromLiteral``;
assert_true(c instanceof type);
assert_equals(c.toString(), "");
}, `${type.name}.fromLiteral: Empty string literal works.`);
test(t => {
const c = type.fromLiteral`\u{1f4a9}`;
assert_true(c instanceof type);
assert_equals(c.toString(), "\u{1f4a9}");
}, `${type.name}.fromLiteral: A very important emoji works.`);
test(t => {
const c = type.fromLiteral`A Multiline
string
works.`;
assert_true(c instanceof type);
assert_true(c.toString().includes("\n"));
}, `${type.name}.fromLiteral: Multi-line string literal works.`);
test(t => {
const tag = type.fromLiteral.bind(type);
const c = tag`abc`;
assert_true(c instanceof type);
assert_equals(c.toString(), "abc");
}, `${type.name}.fromLiteral: Bound method works.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral("abc");
});
}, `${type.name}.fromLiteral: String throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral(null);
});
}, `${type.name}.fromLiteral: null throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral(undefined);
});
}, `${type.name}.fromLiteral: undefined throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral({});
});
}, `${type.name}.fromLiteral: Object throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral`Hello ${2+3} world`
});
}, `${type.name}.fromLiteral: template literal with expression throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral(["abc"]);
});
}, `${type.name}.fromLiteral: non-literal throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral(Object.freeze(["abc"]));
});
}, `${type.name}.fromLiteral: frozen non-literal throws.`);
test(t => {
assert_throws_js(TypeError, _ => {
type.fromLiteral(["abc", "def"], "xxx");
});
}, `${type.name}.fromLiteral: non-literal with param throws.`);
});
// TrustedHTML requires normalization of the value. Let's test that TrustedHTML
// (and only TrustedHTML) does this.
test(t => {
const tag = TrustedHTML.fromLiteral.bind(TrustedHTML);
assert_equals(tag`<b>`.toString(), "<b></b>");
}, "TrustedHTML.fromLiteral: Normalization of value works.");
test(t => {
const tag = TrustedScript.fromLiteral.bind(TrustedScript);
assert_equals(tag`<b>`.toString(), "<b>");
}, "TrustedScript.fromLiteral: No normalization of value occurs.");
test(t => {
const tag = TrustedScriptURL.fromLiteral.bind(TrustedScriptURL);
assert_equals(tag`<b>`.toString(), "<b>");
}, "TrustedScriptURL.fromLiteral: No normalization of value occurs.");
</script>
</body>