85 lines
2.8 KiB
Rust
85 lines
2.8 KiB
Rust
//! Integration tests for the `last_error` module.
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use sarasacw_omrf::last_error::{self, CError, CERROR_OK, CStrPtr};
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use thiserror::Error;
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#[derive(Debug, Error)]
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enum TestErr {
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#[error("boom error")]
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Boom,
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#[error("bad\x00value")]
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WithNul,
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}
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impl From<TestErr> for CError {
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fn from(e: TestErr) -> Self {
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match e {
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TestErr::Boom => 7,
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TestErr::WithNul => 9,
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}
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}
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}
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fn parse_cstr(ptr: CStrPtr) -> String {
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assert!(!ptr.is_null());
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unsafe { std::ffi::CStr::from_ptr(ptr) }
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.to_string_lossy()
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.into_owned()
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}
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/// Coverage: the cleared/default state -- no outcome recorded, code is `CERROR_OK`, message empty.
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#[test]
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fn fresh_state_is_absolute_success() {
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last_error::clear_last_error();
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assert!(!last_error::has_last_message());
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assert_eq!(last_error::get_error_code(), CERROR_OK);
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assert_eq!(parse_cstr(last_error::get_error_message()), "");
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}
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/// Coverage: `set_last_error` records both the `Into<CError>`-mapped code and the `Display`-derived
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/// message, and `has_last_message` becomes true.
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#[test]
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fn set_records_code_and_message() {
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last_error::clear_last_error();
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last_error::set_last_error(TestErr::Boom);
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assert!(last_error::has_last_message());
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assert_eq!(last_error::get_error_code(), 7);
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assert_eq!(parse_cstr(last_error::get_error_message()), "boom error");
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}
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/// Coverage: `clear_last_error` resets a previously-recorded outcome back to the absolute-success
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/// state (no code, empty message).
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#[test]
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fn clear_resets_to_absolute_success() {
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last_error::set_last_error(TestErr::Boom);
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assert!(last_error::has_last_message());
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last_error::clear_last_error();
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assert!(!last_error::has_last_message());
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assert_eq!(last_error::get_error_code(), CERROR_OK);
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assert_eq!(parse_cstr(last_error::get_error_message()), "");
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}
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/// Coverage: interior NUL bytes in an error's `Display` text are replaced so the message C string
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/// builds without panicking, and the code is still recorded.
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#[test]
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fn interior_nul_in_message_is_sanitized() {
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last_error::clear_last_error();
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last_error::set_last_error(TestErr::WithNul);
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assert_eq!(last_error::get_error_code(), 9);
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let msg = parse_cstr(last_error::get_error_message());
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assert!(!msg.contains('\0'));
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assert!(msg.contains("bad"));
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assert!(msg.contains("value"));
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}
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/// Coverage: a second `set_last_error` fully overwrites the previously recorded code and message.
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#[test]
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fn overwriting_replaces_previous_state() {
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last_error::clear_last_error();
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last_error::set_last_error(TestErr::Boom);
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last_error::set_last_error(TestErr::WithNul);
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assert_eq!(last_error::get_error_code(), 9);
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let msg = parse_cstr(last_error::get_error_message());
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assert!(!msg.contains("boom"));
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}
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