Fix displaying of status code without a status message. (#1301)

Co-authored-by: Jakub Roztocil <jakub@roztocil.co>

tests/utils/__init__.py

@@ -27,6 +27,8 @@ HTTPBIN_WITH_CHUNKED_SUPPORT = 'http://' + HTTPBIN_WITH_CHUNKED_SUPPORT_DOMAIN
 TESTS_ROOT = Path(__file__).parent.parent
 CRLF = '\r\n'
 COLOR = '\x1b['
+COLOR_RE = re.compile(r'\x1b\[\d+(;\d+)*?m', re.MULTILINE)
+
 HTTP_OK = '200 OK'
 # noinspection GrazieInspection
 HTTP_OK_COLOR = (
@@ -38,6 +40,10 @@ HTTP_OK_COLOR = (
 DUMMY_URL = 'http://this-should.never-resolve'  # Note: URL never fetched
 
 
+def strip_colors(colorized_msg: str) -> str:
+    return COLOR_RE.sub('', colorized_msg)
+
+
 def mk_config_dir() -> Path:
     dirname = tempfile.mkdtemp(prefix='httpie_config_')
     return Path(dirname)