Add(test): chat validation

scripts/run_validations.sh

@@ -15,6 +15,7 @@ readonly -a QUICK_TESTS=(
 	"tests/android_readiness_validation.gd"
 	"tests/camera_drag_validation.gd"
 	"tests/character_rig_validation.gd"
+	"tests/chat_validation.gd"
 	"tests/controller_focus_presentation_validation.gd"
 	"tests/controller_menu_accessibility_validation.gd"
 	"tests/controller_mapping_validation.gd"

tests/chat_validation.gd

@@ -0,0 +1,21 @@
+extends SceneTree
+
+const MainScene: PackedScene = preload("res://main/main.tscn")
+
+func _initialize() -> void:
+	call_deferred("_run")
+
+func _run() -> void:
+	## Regular whitespace should be stripped
+	assert(NetworkChatProtocol.sanitize_body("   a") == "a", "Leading space not trimmed")
+	assert(NetworkChatProtocol.sanitize_body("b   ") == "b", "Trailing space not trimmed")
+	assert(NetworkChatProtocol.sanitize_body("a b") == "a b", "Innocent whitespace culled")
+
+	## Some examples of Unicode whitespace that should be stripped
+	const em_space := " " # U+2003 EM SPACE
+	assert(NetworkChatProtocol.sanitize_body(em_space + "a") == "a")
+	const braille_space := "⠀" # U+2800 BRAILLE PATTERN BLANK
+	assert(NetworkChatProtocol.sanitize_body(braille_space + "a") == "a")
+
+	print("Chat validation: PASS")
+	quit(0)

tests/chat_validation.gd.uid

@@ -0,0 +1 @@
+uid://ohemhv2sf5g4