112     fn check(raw: &CStr, expected: Result<&[(&str, Option<&str>)], ()>) {  in check()  function
138         check(c"", Ok(&[]));  in empty()
139         check(c"    ", Ok(&[]));  in empty()
140         check(c"  \n  ", Ok(&[]));  in empty()
145         check(c"foo", Ok(&[("foo", None)]));  in single()
146         check(c"   foo", Ok(&[("foo", None)]));  in single()
147         check(c"foo   ", Ok(&[("foo", None)]));  in single()
148         check(c"   foo   ", Ok(&[("foo", None)]));  in single()
153         check(c"foo=bar", Ok(&[("foo", Some("=bar"))]));  in single_with_value()
154         check(c"   foo=bar", Ok(&[("foo", Some("=bar"))]));  in single_with_value()
155         check(c"foo=bar   ", Ok(&[("foo", Some("=bar"))]));  in single_with_value()
156         check(c"   foo=bar   ", Ok(&[("foo", Some("=bar"))]));  in single_with_value()
158         check(c"foo=", Ok(&[("foo", Some("="))]));  in single_with_value()
159         check(c"   foo=", Ok(&[("foo", Some("="))]));  in single_with_value()
160         check(c"foo=   ", Ok(&[("foo", Some("="))]));  in single_with_value()
161         check(c"   foo=   ", Ok(&[("foo", Some("="))]));  in single_with_value()
166         check(c"foo=hello\" \"world", Ok(&[("foo", Some("=hello\" \"world"))]));  in single_with_quote()
171         check(CStr::from_bytes_with_nul(&[255, 255, 255, 0]).unwrap(), Err(()));  in invalid_encoding()
176         check(  in multiple()
180         check(  in multiple()
188         check(c"foo=incomplete\" quote bar=y", Ok(&[("foo", Some("=incomplete\" quote bar=y"))]));  in incomplete_quote()
193         check(  in complex()