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Fix src/test/ui/env-vars.rs on 128-core machines on Windows 

On Windows, the environment variable NUMBER_OF_PROCESSORS has special
meaning. Unfortunately, you can get different answers, depending on
whether you are enumerating all environment variables or querying a
specific variable. This was causing the src/test/ui/env-vars.rs test
to fail on machines with more than 64 processors when run on Windows.
This commit is contained in:
Arlie Davis 2020-12-03 18:07:29 -08:00
parent 5be3f9f10e
commit 957061bb97
1 changed files with 8 additions and 0 deletions
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8
src/test/ui/env-vars.rs
View File

@ -5,6 +5,14 @@ use std::env::*;
fn main() {
for (k, v) in vars_os() {
// On Windows, the environment variable NUMBER_OF_PROCESSORS has special meaning.
// Unfortunately, you can get different answers, depending on whether you are
// enumerating all environment variables or querying a specific variable.
// This was causing this test to fail on machines with more than 64 processors.
if cfg!(target_os = "windows") && k == "NUMBER_OF_PROCESSORS" {
continue;
}
let v2 = var_os(&k);
assert!(v2.as_ref().map(|s| &**s) == Some(&*v),
"bad vars->var transition: {:?} {:?} {:?}", k, v, v2);