Add GUI test to check topbar resize

gui-tests/topbar-resize.goml

@@ -0,0 +1,83 @@
+// Checks that the topbar is correctly displayed, whatever the screen width.
+
+store-value: (window_height, 1000)
+
+define-function: (
+    "check-topbar",
+    (width, text_display, search_display, search_max_width),
+    block {
+        set-window-size: (|width|, |window_height|)
+        wait-for-css: (".nav-container > .container a > .title", {"display": |text_display|})
+        assert-css: ("#search-input-nav", {"display": |search_display|, "max-width": |search_max_width|})
+        assert-size: ("body > .nav-container", {"height": |top_navbar_height|})
+
+        // And finally we check that the top navbar height didn't change.
+        store-size: ("body > .nav-container", {"height": tmp_top_navbar_height})
+        assert: |tmp_top_navbar_height| == |top_navbar_height|
+    }
+)
+
+go-to: |DOC_PATH| + "/sysinfo"
+
+set-window-size: (1100, |window_height|)
+store-size: ("body > .nav-container", {"height": top_navbar_height})
+
+call-function: ("check-topbar", {
+    "width": 1000,
+    "text_display": "inline",
+    "search_display": "block",
+    "search_max_width": "200px",
+})
+call-function: ("check-topbar", {
+    "width": 900,
+    "text_display": "inline",
+    "search_display": "block",
+    "search_max_width": "200px",
+})
+call-function: ("check-topbar", {
+    "width": 872,
+    "text_display": "inline",
+    "search_display": "block",
+    "search_max_width": "200px",
+})
+// From this point, text should not be displayed anymore.
+call-function: ("check-topbar", {
+    "width": 871,
+    "text_display": "none",
+    "search_display": "block",
+    "search_max_width": "200px",
+})
+call-function: ("check-topbar", {
+    "width": 768,
+    "text_display": "none",
+    "search_display": "block",
+    "search_max_width": "200px",
+})
+// From this point, search input should be smaller.
+call-function: ("check-topbar", {
+    "width": 767,
+    "text_display": "none",
+    "search_display": "block",
+    "search_max_width": "150px",
+})
+call-function: ("check-topbar", {
+    "width": 568,
+    "text_display": "none",
+    "search_display": "block",
+    "search_max_width": "150px",
+})
+// From this point, search input should not be displayed anymore.
+call-function: ("check-topbar", {
+    "width": 567,
+    "text_display": "none",
+    "search_display": "none",
+    "search_max_width": "150px",
+})
+// Even at very small width, we maintain the height of the topbar, but such cases will very likely
+// never happen "in real life".
+call-function: ("check-topbar", {
+    "width": 272,
+    "text_display": "none",
+    "search_display": "none",
+    "search_max_width": "150px",
+})