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-rw-r--r--src/test/ui/env-args-reverse-iterator.rs38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/env-args-reverse-iterator.rs b/src/test/ui/env-args-reverse-iterator.rs
new file mode 100644
index 000000000..7f06718c0
--- /dev/null
+++ b/src/test/ui/env-args-reverse-iterator.rs
@@ -0,0 +1,38 @@
+// run-pass
+// ignore-emscripten no processes
+// ignore-sgx no processes
+
+use std::env::args;
+use std::process::Command;
+
+fn assert_reverse_iterator_for_program_arguments(program_name: &str) {
+ let args: Vec<_> = args().rev().collect();
+
+ assert!(args.len() == 4);
+ assert_eq!(args[0], "c");
+ assert_eq!(args[1], "b");
+ assert_eq!(args[2], "a");
+ assert_eq!(args[3], program_name);
+
+ println!("passed");
+}
+
+fn main() {
+ let mut args = args();
+ let me = args.next().unwrap();
+
+ if let Some(_) = args.next() {
+ assert_reverse_iterator_for_program_arguments(&me);
+ return
+ }
+
+ let output = Command::new(&me)
+ .arg("a")
+ .arg("b")
+ .arg("c")
+ .output()
+ .unwrap();
+ assert!(output.status.success());
+ assert!(output.stderr.is_empty());
+ assert_eq!(output.stdout, b"passed\n");
+}