From 2604968d03c3b8b21efb17f570fa5a6cff7ec140 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume.gomez@huawei.com>
Date: Sun, 30 Jan 2022 11:39:10 +0100
Subject: [PATCH] Add test to ensure that theme is applied correctly when going
 back in history

---
 src/test/rustdoc-gui/theme-in-history.goml | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 src/test/rustdoc-gui/theme-in-history.goml

diff --git a/src/test/rustdoc-gui/theme-in-history.goml b/src/test/rustdoc-gui/theme-in-history.goml
new file mode 100644
index 0000000000000..b53799188ef99
--- /dev/null
+++ b/src/test/rustdoc-gui/theme-in-history.goml
@@ -0,0 +1,25 @@
+// Ensures that the theme is working when going back in history.
+goto: file://|DOC_PATH|/test_docs/index.html
+// Set the theme to dark.
+local-storage: {"rustdoc-theme": "dark", "rustdoc-preferred-dark-theme": "dark", "rustdoc-use-system-theme": "false"}
+// We reload the page so the local storage settings are being used.
+reload:
+assert-css: ("body", { "background-color": "rgb(53, 53, 53)" })
+assert-local-storage: { "rustdoc-theme": "dark" }
+
+// Now we go to the settings page.
+click: "#settings-menu"
+wait-for: ".settings"
+// We change the theme to "light".
+click: "#theme-light"
+wait-for: 250
+assert-css: ("body", { "background-color": "rgb(255, 255, 255)" })
+assert-local-storage: { "rustdoc-theme": "light" }
+
+// We go back in history.
+history-go-back:
+// Confirm that we're not on the settings page.
+assert-false: ".settings"
+// Check that the current theme is still "light".
+assert-css: ("body", { "background-color": "rgb(255, 255, 255)" })
+assert-local-storage: { "rustdoc-theme": "light" }