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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /domxpath/resolver-callback-interface.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset=utf-8>
<title>XPathNSResolver implements callback interface</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/invalid_namespace_test.js"></script>
<div id=log></div>
<script>
"use strict";
test(() => {
let resolverCalls = 0;
document.evaluate("/foo:bar", document.documentElement, () => {
resolverCalls++;
return "";
});
assert_equals(resolverCalls, 1);
}, "callable resolver");
test(() => {
let resolverCalls = 0;
const resolver = () => {
resolverCalls++;
return "";
};
document.evaluate("/foo:bar", document.documentElement, resolver);
document.evaluate("/foo:bar", document.documentElement, resolver);
assert_equals(resolverCalls, 2);
}, "callable resolver: result is not cached");
promise_test(t => {
const testError = { name: "test" };
const resolver = () => {
throw testError;
};
return promise_rejects_exactly(t, testError,
invalid_namespace_test(t, resolver)
);
}, "callable resolver: abrupt completion from Call");
test(() => {
let resolverCalls = 0;
const resolver = () => {
resolverCalls++;
return "";
};
let resolverGets = 0;
Object.defineProperty(resolver, "lookupNamespaceURI", {
get() {
resolverGets++;
},
});
document.evaluate("/foo:bar", document.documentElement, resolver);
assert_equals(resolverCalls, 1);
assert_equals(resolverGets, 0);
}, "callable resolver: no 'lookupNamespaceURI' lookups");
test(() => {
let resolverCalls = 0;
document.evaluate("/foo:bar", document.documentElement, {
lookupNamespaceURI() {
resolverCalls++;
return "";
},
});
assert_equals(resolverCalls, 1);
}, "object resolver");
test(() => {
let thisValue, prefixArg;
const resolver = {
lookupNamespaceURI(prefix) {
thisValue = this;
prefixArg = prefix;
return "";
},
};
document.evaluate("/foo:bar", document.documentElement, resolver);
assert_equals(thisValue, resolver);
assert_equals(prefixArg, "foo");
}, "object resolver: this value and `prefix` argument");
test(() => {
let resolverCalls = 0;
const lookupNamespaceURI = () => {
resolverCalls++;
return "";
};
let resolverGets = 0;
const resolver = {
get lookupNamespaceURI() {
resolverGets++;
return lookupNamespaceURI;
},
};
document.evaluate("/foo:bar", document.documentElement, resolver);
document.evaluate("/foo:bar", document.documentElement, resolver);
assert_equals(resolverCalls, 2);
assert_equals(resolverGets, 2);
}, "object resolver: 'lookupNamespaceURI' is not cached");
promise_test(t => {
const testError = { name: "test" };
const resolver = {
get lookupNamespaceURI() {
throw testError;
},
};
return promise_rejects_exactly(t, testError,
invalid_namespace_test(t, resolver)
);
}, "object resolver: abrupt completion from Get");
promise_test(t => {
const resolver = {
lookupNamespaceURI: {},
};
return promise_rejects_js(t, TypeError,
invalid_namespace_test(t, resolver)
);
}, "object resolver: 'lookupNamespaceURI' is thruthy and not callable");
promise_test(t => {
return promise_rejects_js(t, TypeError,
invalid_namespace_test(t, {})
);
}, "object resolver: 'lookupNamespaceURI' is falsy and not callable");
</script>
</body>