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"use strict";
// Properties to be ignored because they were added in versions of the
// spec that are backward-compatible with this version
const IGNORED_METHODS = [
// There is no official spec for the commit API yet, the proposal link is:
// https://wiki.whatwg.org/wiki/OffscreenCanvas
"commit",
// For WebXR integration:
"makeXRCompatible",
];
function assertFunction(v, f) {
try {
if (typeof v[f] != "function") {
testFailed(`Property either does not exist or is not a function: ${f}`);
return false;
} else {
return true;
}
} catch(e) {
testFailed(`Trying to access the property '${f}' threw an error: ${e.toString()}`);
}
}
function testContextMethods(gl, requiredContextMethods) {
const acceptableMethods = [].concat(requiredContextMethods, IGNORED_METHODS);
let passed = true;
requiredContextMethods.forEach(method => {
const r = assertFunction(gl, method);
passed = passed && r;
});
if (passed) {
testPassed("All WebGL methods found.");
}
let extended = false;
for (let propertyName of Object.getOwnPropertyNames(gl)) {
if (typeof gl[propertyName] == "function" && !acceptableMethods.includes(propertyName)) {
if (!extended) {
extended = true;
testFailed("Also found the following extra methods:");
}
testFailed(propertyName);
}
}
if (!extended) {
testPassed("No extra methods found on WebGL context.");
}
}
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