add test: cargo --version

diff --git a/tests/test_cargo_version.rs b/tests/test_cargo_version.rs
index f6a2312ed5f9678632bcc345b7d4efcca912604e..cca8e721b560b76e98d7a62eab10c8813495394b 100644 (file)
--- a/tests/test_cargo_version.rs
+++ b/tests/test_cargo_version.rs
@@ -10,4 +10,9 @@ test!(simple {
     assert_that(p.cargo_process("version"),
                 execs().with_status(0).with_stdout(format!("{}\n",
         cargo::version()).as_slice()));
+
+    assert_that(p.cargo_process("--version"),
+                execs().with_status(0).with_stdout(format!("{}\n",
+        cargo::version()).as_slice()));
+
 })