diff options
Diffstat (limited to 'vendor/thiserror/tests/test_backtrace.rs')
-rw-r--r-- | vendor/thiserror/tests/test_backtrace.rs | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/vendor/thiserror/tests/test_backtrace.rs b/vendor/thiserror/tests/test_backtrace.rs new file mode 100644 index 0000000..4710d45 --- /dev/null +++ b/vendor/thiserror/tests/test_backtrace.rs @@ -0,0 +1,274 @@ +#![cfg_attr(thiserror_nightly_testing, feature(error_generic_member_access))] + +use thiserror::Error; + +#[derive(Error, Debug)] +#[error("...")] +pub struct Inner; + +#[cfg(thiserror_nightly_testing)] +#[derive(Error, Debug)] +#[error("...")] +pub struct InnerBacktrace { + backtrace: std::backtrace::Backtrace, +} + +#[cfg(thiserror_nightly_testing)] +pub mod structs { + use super::{Inner, InnerBacktrace}; + use std::backtrace::Backtrace; + use std::error::{self, Error}; + use std::sync::Arc; + use thiserror::Error; + + #[derive(Error, Debug)] + #[error("...")] + pub struct PlainBacktrace { + backtrace: Backtrace, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct ExplicitBacktrace { + #[backtrace] + backtrace: Backtrace, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct OptBacktrace { + #[backtrace] + backtrace: Option<Backtrace>, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct ArcBacktrace { + #[backtrace] + backtrace: Arc<Backtrace>, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct BacktraceFrom { + #[from] + source: Inner, + #[backtrace] + backtrace: Backtrace, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct CombinedBacktraceFrom { + #[from] + #[backtrace] + source: InnerBacktrace, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct OptBacktraceFrom { + #[from] + source: Inner, + #[backtrace] + backtrace: Option<Backtrace>, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct ArcBacktraceFrom { + #[from] + source: Inner, + #[backtrace] + backtrace: Arc<Backtrace>, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct AnyhowBacktrace { + #[backtrace] + source: anyhow::Error, + } + + #[derive(Error, Debug)] + #[error("...")] + pub struct BoxDynErrorBacktrace { + #[backtrace] + source: Box<dyn Error>, + } + + #[test] + fn test_backtrace() { + let error = PlainBacktrace { + backtrace: Backtrace::capture(), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ExplicitBacktrace { + backtrace: Backtrace::capture(), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = OptBacktrace { + backtrace: Some(Backtrace::capture()), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ArcBacktrace { + backtrace: Arc::new(Backtrace::capture()), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = BacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = CombinedBacktraceFrom::from(InnerBacktrace { + backtrace: Backtrace::capture(), + }); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = OptBacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ArcBacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = AnyhowBacktrace { + source: anyhow::Error::msg("..."), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = BoxDynErrorBacktrace { + source: Box::new(PlainBacktrace { + backtrace: Backtrace::capture(), + }), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + } +} + +#[cfg(thiserror_nightly_testing)] +pub mod enums { + use super::{Inner, InnerBacktrace}; + use std::backtrace::Backtrace; + use std::error; + use std::sync::Arc; + use thiserror::Error; + + #[derive(Error, Debug)] + pub enum PlainBacktrace { + #[error("...")] + Test { backtrace: Backtrace }, + } + + #[derive(Error, Debug)] + pub enum ExplicitBacktrace { + #[error("...")] + Test { + #[backtrace] + backtrace: Backtrace, + }, + } + + #[derive(Error, Debug)] + pub enum OptBacktrace { + #[error("...")] + Test { + #[backtrace] + backtrace: Option<Backtrace>, + }, + } + + #[derive(Error, Debug)] + pub enum ArcBacktrace { + #[error("...")] + Test { + #[backtrace] + backtrace: Arc<Backtrace>, + }, + } + + #[derive(Error, Debug)] + pub enum BacktraceFrom { + #[error("...")] + Test { + #[from] + source: Inner, + #[backtrace] + backtrace: Backtrace, + }, + } + + #[derive(Error, Debug)] + pub enum CombinedBacktraceFrom { + #[error("...")] + Test { + #[from] + #[backtrace] + source: InnerBacktrace, + }, + } + + #[derive(Error, Debug)] + pub enum OptBacktraceFrom { + #[error("...")] + Test { + #[from] + source: Inner, + #[backtrace] + backtrace: Option<Backtrace>, + }, + } + + #[derive(Error, Debug)] + pub enum ArcBacktraceFrom { + #[error("...")] + Test { + #[from] + source: Inner, + #[backtrace] + backtrace: Arc<Backtrace>, + }, + } + + #[test] + fn test_backtrace() { + let error = PlainBacktrace::Test { + backtrace: Backtrace::capture(), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ExplicitBacktrace::Test { + backtrace: Backtrace::capture(), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = OptBacktrace::Test { + backtrace: Some(Backtrace::capture()), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ArcBacktrace::Test { + backtrace: Arc::new(Backtrace::capture()), + }; + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = BacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = CombinedBacktraceFrom::from(InnerBacktrace { + backtrace: Backtrace::capture(), + }); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = OptBacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + + let error = ArcBacktraceFrom::from(Inner); + assert!(error::request_ref::<Backtrace>(&error).is_some()); + } +} + +#[test] +#[cfg_attr(not(thiserror_nightly_testing), ignore)] +fn test_backtrace() {} |