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<!DOCTYPE html>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
- License, v. 2.0. If a copy of the MPL was not distributed with this
<html>
<head>
<meta charset="utf-8"/>
<title></title>
</head>
<body>
<script>
"use strict";
// Page state is communicated to the test harness via the document title.
const initialTitle = "Waiting for source map";
const successTitle = "Source map received";
const errorTitle = "Error";
document.title = initialTitle;
function getSourceMap(sourceId) {
return new Promise((resolve, reject) => {
const requestId = Date.now();
function listener(event) {
window.removeEventListener(
"WebChannelMessageToContent",
listener,
true
);
const { id, message } = event.detail;
if (id !== "profiler.firefox.com" || !message || typeof message !== "object") {
reject(new Error("A malformed WebChannel event was received."));
return;
}
if (message.requestId !== requestId) {
return;
}
if (message.type === "SUCCESS_RESPONSE") {
resolve(message.response);
} else if (message.type === "ERROR_RESPONSE") {
reject(new Error(message.error));
} else {
reject(new Error("Unknown response type: " + message.type));
}
}
window.addEventListener("WebChannelMessageToContent", listener, true);
window.dispatchEvent(
new CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "profiler.firefox.com",
message: { type: "GET_SOURCE_MAP", requestId, sourceId },
}),
})
);
});
}
async function runTest() {
try {
const params = new URLSearchParams(document.location.search);
const sourceId = params.get("sourceId");
const expectedSourcesContent = JSON.parse(params.get("expectedSourcesContent"));
const sourceMap = await getSourceMap(sourceId);
// Verify the response is an object (not a JSON string).
if (typeof sourceMap !== "object" || sourceMap === null) {
throw new Error(
"Expected sourceMap to be an object, got: " + typeof sourceMap
);
}
if (JSON.stringify(sourceMap.sourcesContent) !== JSON.stringify(expectedSourcesContent)) {
throw new Error(
"Unexpected sourcesContent: " + JSON.stringify(sourceMap.sourcesContent) +
" (expected " + JSON.stringify(expectedSourcesContent) + ")"
);
}
document.title = successTitle;
} catch (error) {
document.title = errorTitle;
dump("An error was caught in webchannel-source-map.html\n");
dump(error + "\n");
console.error("An error was caught in webchannel-source-map.html", error);
}
}
runTest();
</script>
</body>
</html>