diff options
Diffstat (limited to 'src/rust/tor_util/tests/rust_string.rs')
-rw-r--r-- | src/rust/tor_util/tests/rust_string.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/rust/tor_util/tests/rust_string.rs b/src/rust/tor_util/tests/rust_string.rs new file mode 100644 index 0000000000..1ff605a43c --- /dev/null +++ b/src/rust/tor_util/tests/rust_string.rs @@ -0,0 +1,37 @@ +extern crate tor_util; +extern crate libc; + +use std::ffi::CString; +use tor_util::RustString; + +#[test] +fn rust_string_conversions_preserve_c_string() { + let s = CString::new("asdf foo").unwrap(); + let r = RustString::from(s.clone()); + let r2 = RustString::from(s.clone()); + let c = r2.as_ptr(); + assert_eq!(unsafe { libc::strlen(c) }, 8); + let c_str = r.into(); + assert_eq!(s, c_str); +} + +#[test] +fn empty_string() { + let s = CString::new("").unwrap(); + let r = RustString::from(s.clone()); + let c = r.as_ptr(); + assert_eq!(unsafe { libc::strlen(c) }, 0); + let c_str = r.into(); + assert_eq!(s, c_str); +} + +#[test] +fn c_string_with_unicode() { + // The euro sign is three bytes + let s = CString::new("asd€asd").unwrap(); + let r = RustString::from(s.clone()); + let c = r.as_ptr(); + assert_eq!(unsafe { libc::strlen(c) }, 9); + let c_str = r.into(); + assert_eq!(s, c_str); +} |