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-rw-r--r--parser/htmlparser/tests/mochitest/browser_viewsource.js28
1 files changed, 28 insertions, 0 deletions
diff --git a/parser/htmlparser/tests/mochitest/browser_viewsource.js b/parser/htmlparser/tests/mochitest/browser_viewsource.js
new file mode 100644
index 0000000000..e4d44e05be
--- /dev/null
+++ b/parser/htmlparser/tests/mochitest/browser_viewsource.js
@@ -0,0 +1,28 @@
+"use strict";
+
+add_task(async function () {
+ const PAGE_URL = getRootDirectory(gTestPath) + "file_viewsource.html";
+ let viewSourceTab = await BrowserTestUtils.openNewForegroundTab(
+ gBrowser,
+ "view-source:" + PAGE_URL
+ );
+
+ let xhrPromise = new Promise(resolve => {
+ let xhr = new XMLHttpRequest();
+ xhr.open("GET", PAGE_URL, true);
+ xhr.onload = event => resolve(event.target.responseText);
+ xhr.send();
+ });
+
+ let viewSourceContentPromise = SpecialPowers.spawn(
+ viewSourceTab.linkedBrowser,
+ [],
+ async function () {
+ return content.document.body.textContent;
+ }
+ );
+
+ let results = await Promise.all([viewSourceContentPromise, xhrPromise]);
+ is(results[0], results[1], "Sources should match");
+ BrowserTestUtils.removeTab(viewSourceTab);
+});