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-rw-r--r--third_party/rust/nix/test/test_errno.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/third_party/rust/nix/test/test_errno.rs b/third_party/rust/nix/test/test_errno.rs
new file mode 100644
index 0000000000..750fc924ff
--- /dev/null
+++ b/third_party/rust/nix/test/test_errno.rs
@@ -0,0 +1,16 @@
+use nix::errno::Errno;
+
+#[test]
+fn errno_set_and_read() {
+ Errno::ENFILE.set();
+ assert_eq!(Errno::last(), Errno::ENFILE);
+}
+
+#[test]
+fn errno_set_and_clear() {
+ Errno::ENFILE.set();
+ assert_eq!(Errno::last(), Errno::ENFILE);
+
+ Errno::clear();
+ assert_eq!(Errno::last(), Errno::from_raw(0));
+}