diff --git a/tests/unit_tests/build_gen/test_arduino8266.py b/tests/unit_tests/build_gen/test_arduino8266.py
index f3cba98248..244f00cbda 100644
--- a/tests/unit_tests/build_gen/test_arduino8266.py
+++ b/tests/unit_tests/build_gen/test_arduino8266.py
@@ -640,19 +640,6 @@ def test_project_flags_requotes_lexed_defines() -> None:
     assert compile_flags == ['"-DGREETING=hello world"']
 
 
-def test_shell_token_escaping() -> None:
-    """Tokens survive both POSIX sh and the Windows CRT argv parser."""
-    assert arduino8266._shell_token("-Os") == "-Os"
-    # $ would be expanded (to nothing) by ninja itself
-    assert arduino8266._shell_token("-DX=$HOME") == "-DX=$$HOME"
-    # Backslashes not before a quote stay single (Windows path in a define)
-    assert arduino8266._shell_token("-DP=C:\\x y") == '"-DP=C:\\x y"'
-    # A quote is escaped and the preceding backslash run doubles
-    assert arduino8266._shell_token('-DX=a\\"b c') == '"-DX=a\\\\\\"b c"'
-    # A trailing backslash run doubles before the closing quote
-    assert arduino8266._shell_token("a b\\") == '"a b\\\\"'
-
-
 def test_write_project_empty_core_raises(tmp_path: Path) -> None:
     """A framework tree with no core sources fails at generation, not link."""
     paths = _make_framework(tmp_path)