Add test of Literal::subspan

dtolnay · dtolnay · commit c1cf0f84fe65 · 2023-04-01T13:12:22.000-07:00
diff --git a/tests/test.rs b/tests/test.rs
@@ -268,11 +268,12 @@ fn literal_parse() {
 fn literal_span() {
     let positive = "0.1".parse::<Literal>().unwrap();
     let negative = "-0.1".parse::<Literal>().unwrap();
+    let subspan = positive.subspan(1..2);
 
     #[cfg(not(span_locations))]
     {
-        let _ = positive;
         let _ = negative;
+        assert!(subspan.is_none());
     }
 
     #[cfg(span_locations)]
@@ -281,7 +282,10 @@ fn literal_span() {
         assert_eq!(positive.span().end().column, 3);
         assert_eq!(negative.span().start().column, 0);
         assert_eq!(negative.span().end().column, 4);
+        assert_eq!(subspan.unwrap().source_text().unwrap(), "."); // FIXME
     }
+
+    assert!(positive.subspan(1..4).is_none());
 }
 
 #[test]

Original file line number	Diff line number	Diff line change
`@@ -268,11 +268,12 @@ fn literal_parse() {`
`268`	`268`	`fn literal_span() {`
`269`	`269`	`let positive = "0.1".parse::<Literal>().unwrap();`
`270`	`270`	`let negative = "-0.1".parse::<Literal>().unwrap();`
	`271`	`+ let subspan = positive.subspan(1..2);`
`271`	`272`
`272`	`273`	`#[cfg(not(span_locations))]`
`273`	`274`	`{`
`274`		`- let _ = positive;`
`275`	`275`	`let _ = negative;`
	`276`	`+ assert!(subspan.is_none());`
`276`	`277`	`}`
`277`	`278`
`278`	`279`	`#[cfg(span_locations)]`
`@@ -281,7 +282,10 @@ fn literal_span() {`
`281`	`282`	`assert_eq!(positive.span().end().column, 3);`
`282`	`283`	`assert_eq!(negative.span().start().column, 0);`
`283`	`284`	`assert_eq!(negative.span().end().column, 4);`
	`285`	`+ assert_eq!(subspan.unwrap().source_text().unwrap(), "."); // FIXME`
`284`	`286`	`}`
	`287`	`+`
	`288`	`+ assert!(positive.subspan(1..4).is_none());`
`285`	`289`	`}`
`286`	`290`
`287`	`291`	`#[test]`