111     use cstr::cstr;
139         check(cstr!(""), Ok(&[]));  in empty()
140         check(cstr!("    "), Ok(&[]));  in empty()
141         check(cstr!("  \n  "), Ok(&[]));  in empty()
146         check(cstr!("foo"), Ok(&[("foo", None)]));  in single()
147         check(cstr!("   foo"), Ok(&[("foo", None)]));  in single()
148         check(cstr!("foo   "), Ok(&[("foo", None)]));  in single()
149         check(cstr!("   foo   "), Ok(&[("foo", None)]));  in single()
154         check(cstr!("foo=bar"), Ok(&[("foo", Some("=bar"))]));  in single_with_value()
155         check(cstr!("   foo=bar"), Ok(&[("foo", Some("=bar"))]));  in single_with_value()
156         check(cstr!("foo=bar   "), Ok(&[("foo", Some("=bar"))]));  in single_with_value()
157         check(cstr!("   foo=bar   "), Ok(&[("foo", Some("=bar"))]));  in single_with_value()
159         check(cstr!("foo="), Ok(&[("foo", Some("="))]));  in single_with_value()
160         check(cstr!("   foo="), Ok(&[("foo", Some("="))]));  in single_with_value()
161         check(cstr!("foo=   "), Ok(&[("foo", Some("="))]));  in single_with_value()
162         check(cstr!("   foo=   "), Ok(&[("foo", Some("="))]));  in single_with_value()
167         check(cstr!("foo=hello\" \"world"), Ok(&[("foo", Some("=hello\" \"world"))]));  in single_with_quote()
178             cstr!(" a=b   c=d   e=  f g  "),  in multiple()
182             cstr!("   a=b  \n c=d      e=  f g"),  in multiple()
190             cstr!("foo=incomplete\" quote bar=y"),  in incomplete_quote()
197 …check(cstr!("  a  a1=  b=c d=e,f,g x=\"value with quote\" y=val\"ue with \"multiple\" quo\"te  "),…  in complex()