1 files changed, 56 insertions, 0 deletions
diff --git a/devtools/client/framework/test/browser_source_map-reload.js b/devtools/client/framework/test/browser_source_map-reload.js
new file mode 100644
index 0000000000..13902062a7
--- /dev/null
+++ b/devtools/client/framework/test/browser_source_map-reload.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that reloading re-reads the source maps.
+
+"use strict";
+const INITIAL_URL =
+  "data:text/html,<!doctype html>html><head><meta charset='utf-8'/><title>Empty test page 1</title></head><body></body></html>";
+const ORIGINAL_URL_1 = "webpack://code-reload/v1/code_reload_1.js";
+const ORIGINAL_URL_2 = "webpack://code-reload/v2/code_reload_2.js";
+
+const GENERATED_LINE = 13;
+const ORIGINAL_LINE = 7;
+
+const testServer = createVersionizedHttpTestServer("reload");
+
+const PAGE_URL = testServer.urlFor("doc_reload.html");
+const JS_URL = testServer.urlFor("code_bundle_reload.js");
+
+add_task(async function () {
+  // Start with the empty page, then navigate, so that we can properly
+  // listen for new sources arriving.
+  const toolbox = await openNewTabAndToolbox(INITIAL_URL, "webconsole");
+  const service = toolbox.sourceMapURLService;
+
+  let sourceSeen = waitForSourceLoad(toolbox, JS_URL);
+  await navigateTo(PAGE_URL);
+  await sourceSeen;
+
+  info(`checking original location for ${JS_URL}:${GENERATED_LINE}`);
+  let newLoc = await new Promise(r =>
+    service.subscribeByURL(JS_URL, GENERATED_LINE, undefined, r)
+  );
+
+  is(newLoc.url, ORIGINAL_URL_1, "check mapped URL");
+  is(newLoc.line, ORIGINAL_LINE, "check mapped line number");
+
+  testServer.switchToNextVersion();
+
+  // Reload the page. A different source file will be loaded.
+  sourceSeen = waitForSourceLoad(toolbox, JS_URL);
+  await reloadBrowser();
+  await sourceSeen;
+
+  info(
+    `checking post-reload original location for ${JS_URL}:${GENERATED_LINE}`
+  );
+  newLoc = await new Promise(r =>
+    service.subscribeByURL(JS_URL, GENERATED_LINE, undefined, r)
+  );
+  is(newLoc.url, ORIGINAL_URL_2, "check post-reload mapped URL");
+  is(newLoc.line, ORIGINAL_LINE, "check post-reload mapped line number");
+
+  await toolbox.destroy();
+  gBrowser.removeCurrentTab();
+});