Fix typos

3 files changed, 3 insertions, 3 deletions

diff --git a/test/sys/test_ptrace.rs b/test/sys/test_ptrace.rs
index 83fff9a5..89c4e2dd 100644
--- a/test/sys/test_ptrace.rs
+++ b/test/sys/test_ptrace.rs
@@ -72,7 +72,7 @@ fn test_ptrace_cont() {
     let _m = crate::FORK_MTX.lock();
 
     // FIXME: qemu-user doesn't implement ptrace on all architectures
-    // and retunrs ENOSYS in this case.
+    // and returns ENOSYS in this case.
     // We (ab)use this behavior to detect the affected platforms
     // and skip the test then.
     // On valid platforms the ptrace call should return Errno::EPERM, this
diff --git a/test/sys/test_sockopt.rs b/test/sys/test_sockopt.rs
index 01920fd4..59b97c8b 100644
--- a/test/sys/test_sockopt.rs
+++ b/test/sys/test_sockopt.rs
@@ -122,7 +122,7 @@ fn test_so_tcp_maxseg() {
 }
 
 // The CI doesn't supported getsockopt and setsockopt on emulated processors.
-// It's beleived that a QEMU issue, the tests run ok on a fully emulated system.
+// It's believed that a QEMU issue, the tests run ok on a fully emulated system.
 // Current CI just run the binary with QEMU but the Kernel remains the same as the host.
 // So the syscall doesn't work properly unless the kernel is also emulated.
 #[test]
diff --git a/test/test_mount.rs b/test/test_mount.rs
index 44287f97..1ddfcfe9 100644
--- a/test/test_mount.rs
+++ b/test/test_mount.rs
@@ -1,6 +1,6 @@
 mod common;
 
-// Impelmentation note: to allow unprivileged users to run it, this test makes
+// Implementation note: to allow unprivileged users to run it, this test makes
 // use of user and mount namespaces. On systems that allow unprivileged user
 // namespaces (Linux >= 3.8 compiled with CONFIG_USER_NS), the test should run
 // without root.