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-rw-r--r--src/test/rustdoc-gui/README.md12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/rustdoc-gui/README.md b/src/test/rustdoc-gui/README.md
index 499a98a3d22..8efe7a578b8 100644
--- a/src/test/rustdoc-gui/README.md
+++ b/src/test/rustdoc-gui/README.md
@@ -8,5 +8,17 @@ test what's being currently displayed in the web page.
 
 You can find more information and its documentation in its [repository][browser-ui-test].
 
+If you need to have more information on the tests run, you can use `--test-args`:
+
+```bash
+$ ./x.py test src/test/rustdoc-gui --stage 1 --jobs 8 --test-args --debug
+```
+
+There are three options supported:
+
+ * `--debug`: allows to see puppeteer commands.
+ * `--no-headless`: disable headless mode so you can see what's going on.
+ * `--show-text`: by default, text isn't rendered because of issues with fonts, it enables it back.
+
 [browser-ui-test]: https://github.com/GuillaumeGomez/browser-UI-test/
 [puppeteer]: https://pptr.dev/