1 files changed, 50 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_jsterm_error_docs.js b/devtools/client/webconsole/test/browser/browser_jsterm_error_docs.js
new file mode 100644
index 0000000000..0e37ad27fb
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_jsterm_error_docs.js
@@ -0,0 +1,50 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_URI = "data:text/html,<!DOCTYPE html>Test error documentation";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  // Check that errors with entries in errordocs.js display links next to their messages.
+  const ErrorDocs = require("resource://devtools/server/actors/errordocs.js");
+
+  const ErrorDocStatements = {
+    JSMSG_BAD_RADIX: "(42).toString(0);",
+    JSMSG_BAD_ARRAY_LENGTH: "([]).length = -1",
+    JSMSG_NEGATIVE_REPETITION_COUNT: "'abc'.repeat(-1);",
+    JSMSG_PRECISION_RANGE: "77.1234.toExponential(-1);",
+  };
+
+  for (const [errorMessageName, expression] of Object.entries(
+    ErrorDocStatements
+  )) {
+    const errorUrl = ErrorDocs.GetURL({ errorMessageName });
+    const title = errorUrl.split("?")[0];
+
+    await clearOutput(hud);
+
+    const { node } = await executeAndWaitForErrorMessage(
+      hud,
+      expression,
+      "RangeError:"
+    );
+    const learnMoreLink = node.querySelector(".learn-more-link");
+    ok(
+      learnMoreLink,
+      `There is a [Learn More] link for "${errorMessageName}" error`
+    );
+    is(
+      learnMoreLink.title,
+      title,
+      `The link has the expected "${title}" title`
+    );
+    is(
+      learnMoreLink.href,
+      errorUrl,
+      `The link has the expected "${errorUrl}" href value`
+    );
+  }
+});