about summary refs log tree commit diff
path: root/src/libstd/sys_common
diff options
context:
space:
mode:
authorPhilip Munksgaard <pmunksgaard@gmail.com>2018-09-15 11:50:41 +0200
committerPhilip Munksgaard <pmunksgaard@gmail.com>2018-09-15 17:17:35 +0200
commit0e9d260e0a53f9d92f09d0276d22b874aee98259 (patch)
treee61044234e493a56085828b9e997cdfc26e7f0fc /src/libstd/sys_common
parent85da24527adc45adc6b503d92fca2a29331ddab5 (diff)
downloadrust-0e9d260e0a53f9d92f09d0276d22b874aee98259.tar.gz
rust-0e9d260e0a53f9d92f09d0276d22b874aee98259.zip
Improve output if no_lookup_host_duplicates fails
If the test fails, output the offending addresses and a helpful error message.
Also slightly improve legibility of the preceding line that puts the addresses
into a HashMap.
Diffstat (limited to 'src/libstd/sys_common')
-rw-r--r--src/libstd/sys_common/net.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/libstd/sys_common/net.rs b/src/libstd/sys_common/net.rs
index b841afe1a51..d09a233ed89 100644
--- a/src/libstd/sys_common/net.rs
+++ b/src/libstd/sys_common/net.rs
@@ -622,7 +622,8 @@ mod tests {
             Ok(lh) => lh,
             Err(e) => panic!("couldn't resolve `localhost': {}", e)
         };
-        let _na = lh.map(|sa| *addrs.entry(sa).or_insert(0) += 1).count();
-        assert!(addrs.values().filter(|&&v| v > 1).count() == 0);
+        for sa in lh { *addrs.entry(sa).or_insert(0) += 1; };
+        assert_eq!(addrs.iter().filter(|&(_, &v)| v > 1).collect::<Vec<_>>(), vec![],
+                   "There should be no duplicate localhost entries");
     }
 }