test(resolver): Add more MSRV test cases

Author: epage

src/cargo/core/resolver/version_prefs.rs

@@ -232,8 +232,11 @@ mod test {
         vp.max_rust_version(Some("1.50".parse().unwrap()));
 
         let mut summaries = vec![
-            summ("foo", "1.2.4", Some("1.60")),
-            summ("foo", "1.2.3", Some("1.50")),
+            summ("foo", "1.2.4", None),
+            summ("foo", "1.2.3", Some("1.60")),
+            summ("foo", "1.2.2", None),
+            summ("foo", "1.2.1", Some("1.50")),
+            summ("foo", "1.2.0", None),
             summ("foo", "1.1.0", Some("1.40")),
             summ("foo", "1.0.9", None),
         ];
@@ -242,14 +245,16 @@ mod test {
         vp.sort_summaries(&mut summaries, None);
         assert_eq!(
             describe(&summaries),
-            "foo/1.2.3, foo/1.1.0, foo/1.0.9, foo/1.2.4".to_string()
+            "foo/1.2.4, foo/1.2.2, foo/1.2.1, foo/1.2.0, foo/1.1.0, foo/1.0.9, foo/1.2.3"
+                .to_string()
         );
 
         vp.version_ordering(VersionOrdering::MinimumVersionsFirst);
         vp.sort_summaries(&mut summaries, None);
         assert_eq!(
             describe(&summaries),
-            "foo/1.0.9, foo/1.1.0, foo/1.2.3, foo/1.2.4".to_string()
+            "foo/1.0.9, foo/1.1.0, foo/1.2.0, foo/1.2.1, foo/1.2.2, foo/1.2.4, foo/1.2.3"
+                .to_string()
         );
     }
 }