Test that ANSI input is filtered

Add a simple regression test to make sure ANSI escape sequences
aren't allowed in input lines. The escape (byte \x1b) character
should be filtered from non-binary-mode clients because we filter to
a "printable" set. For binary-mode clients an escape won't be valid
UTF-8 and so will cause the entire line of input on which it's found
to be skipped.

diff --git a/mudpy/tests/selftest.py b/mudpy/tests/selftest.py
index e120e70..0b29386 100644 (file)
--- a/mudpy/tests/selftest.py
+++ b/mudpy/tests/selftest.py
@@ -101,6 +101,11 @@ test_wrapping = (
     (1, r'says,\r\n"O[o]+\."', ""),
 )
 
+test_forbid_ansi_input = (
+    (0, '> ', "say \x1b[35mfoo\x1b[0m"),
+    (1, r'says, "\[35mfoo\[0m\."', ""),
+)
+
 test_movement = (
     (0, "> ", "move north"),
     (0, r"You exit to the north\.", ""),
@@ -263,6 +268,7 @@ dialogue = (
     (test_sentence_capitalization, "sentence capitalization"),
     (test_chat_mode, "chat mode"),
     (test_wrapping, "wrapping"),
+    (test_forbid_ansi_input, "raw escape input is filtered"),
     (test_movement, "movement"),
     (test_actor_disappears, "actor spontaneous disappearance"),
     (test_account1_teardown, "second account teardown"),