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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Test AudioNode#getParam() / AudioNode#setParam()
*/
add_task(function* () {
let { target, front } = yield initBackend(SIMPLE_CONTEXT_URL);
let [_, [destNode, oscNode, gainNode]] = yield Promise.all([
front.setup({ reload: true }),
get3(front, "create-node")
]);
let freq = yield oscNode.getParam("frequency");
info(typeof freq);
is(freq, 440, "AudioNode:getParam correctly fetches AudioParam");
let type = yield oscNode.getParam("type");
is(type, "sine", "AudioNode:getParam correctly fetches non-AudioParam");
type = yield oscNode.getParam("not-a-valid-param");
ok(type.type === "undefined",
"AudioNode:getParam correctly returns a grip value for `undefined` for an invalid param.");
let resSuccess = yield oscNode.setParam("frequency", 220);
freq = yield oscNode.getParam("frequency");
is(freq, 220, "AudioNode:setParam correctly sets a `number` AudioParam");
is(resSuccess, undefined, "AudioNode:setParam returns undefined for correctly set AudioParam");
resSuccess = yield oscNode.setParam("type", "square");
type = yield oscNode.getParam("type");
is(type, "square", "AudioNode:setParam correctly sets a `string` non-AudioParam");
is(resSuccess, undefined, "AudioNode:setParam returns undefined for correctly set AudioParam");
try {
yield oscNode.setParam("frequency", "hello");
ok(false, "setParam with invalid types should throw");
} catch (e) {
ok(/is not a finite floating-point/.test(e.message), "AudioNode:setParam returns error with correct message when attempting an invalid assignment");
is(e.type, "TypeError", "AudioNode:setParam returns error with correct type when attempting an invalid assignment");
freq = yield oscNode.getParam("frequency");
is(freq, 220, "AudioNode:setParam does not modify value when an error occurs");
}
yield removeTab(target.tab);
});
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