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-rw-r--r--src/libs/intertrait/cast/arc.rs50
-rw-r--r--src/libs/intertrait/cast/box.rs49
-rw-r--r--src/libs/intertrait/cast/rc.rs49
-rw-r--r--src/libs/intertrait/mod.rs104
4 files changed, 156 insertions, 96 deletions
diff --git a/src/libs/intertrait/cast/arc.rs b/src/libs/intertrait/cast/arc.rs
index 135cf64..6d3867c 100644
--- a/src/libs/intertrait/cast/arc.rs
+++ b/src/libs/intertrait/cast/arc.rs
@@ -45,3 +45,53 @@ impl<CastFromSelf: ?Sized + CastFromSync> CastArc for CastFromSelf
})
}
}
+
+#[cfg(test)]
+mod tests
+{
+ use std::any::Any;
+ use std::fmt::{Debug, Display};
+ use std::sync::Arc;
+
+ use super::*;
+ use crate::test_utils::subjects;
+
+ #[test]
+ fn can_cast_arc()
+ {
+ let concrete_ninja = Arc::new(subjects::Ninja);
+
+ let abstract_ninja: Arc<dyn subjects::INinja> = concrete_ninja;
+
+ let debug_ninja_result = abstract_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+
+ #[test]
+ fn cannot_cast_arc_wrong()
+ {
+ let concrete_ninja = Arc::new(subjects::Ninja);
+
+ let abstract_ninja: Arc<dyn subjects::INinja> = concrete_ninja;
+
+ let display_ninja_result = abstract_ninja.cast::<dyn Display>();
+
+ assert!(matches!(
+ display_ninja_result,
+ Err(CastError::GetCasterFailed(_))
+ ));
+ }
+
+ #[test]
+ fn can_cast_arc_from_any()
+ {
+ let concrete_ninja = Arc::new(subjects::Ninja);
+
+ let any_ninja: Arc<dyn Any + Send + Sync> = concrete_ninja;
+
+ let debug_ninja_result = any_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+}
diff --git a/src/libs/intertrait/cast/box.rs b/src/libs/intertrait/cast/box.rs
index 67fd949..0e160f4 100644
--- a/src/libs/intertrait/cast/box.rs
+++ b/src/libs/intertrait/cast/box.rs
@@ -40,3 +40,52 @@ impl<CastFromSelf: ?Sized + CastFrom> CastBox for CastFromSelf
})
}
}
+
+#[cfg(test)]
+mod tests
+{
+ use std::any::Any;
+ use std::fmt::{Debug, Display};
+
+ use super::*;
+ use crate::test_utils::subjects;
+
+ #[test]
+ fn can_cast_box()
+ {
+ let concrete_ninja = Box::new(subjects::Ninja);
+
+ let abstract_ninja: Box<dyn subjects::INinja> = concrete_ninja;
+
+ let debug_ninja_result = abstract_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+
+ #[test]
+ fn cannot_cast_box_wrong()
+ {
+ let concrete_ninja = Box::new(subjects::Ninja);
+
+ let abstract_ninja: Box<dyn subjects::INinja> = concrete_ninja;
+
+ let display_ninja_result = abstract_ninja.cast::<dyn Display>();
+
+ assert!(matches!(
+ display_ninja_result,
+ Err(CastError::GetCasterFailed(_))
+ ));
+ }
+
+ #[test]
+ fn can_cast_box_from_any()
+ {
+ let concrete_ninja = Box::new(subjects::Ninja);
+
+ let any_ninja: Box<dyn Any> = concrete_ninja;
+
+ let debug_ninja_result = any_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+}
diff --git a/src/libs/intertrait/cast/rc.rs b/src/libs/intertrait/cast/rc.rs
index ec70544..906490d 100644
--- a/src/libs/intertrait/cast/rc.rs
+++ b/src/libs/intertrait/cast/rc.rs
@@ -40,3 +40,52 @@ impl<CastFromSelf: ?Sized + CastFrom> CastRc for CastFromSelf
})
}
}
+
+#[cfg(test)]
+mod tests
+{
+ use std::any::Any;
+ use std::fmt::{Debug, Display};
+
+ use super::*;
+ use crate::test_utils::subjects;
+
+ #[test]
+ fn can_cast_rc()
+ {
+ let concrete_ninja = Rc::new(subjects::Ninja);
+
+ let abstract_ninja: Rc<dyn subjects::INinja> = concrete_ninja;
+
+ let debug_ninja_result = abstract_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+
+ #[test]
+ fn cannot_cast_rc_wrong()
+ {
+ let concrete_ninja = Rc::new(subjects::Ninja);
+
+ let abstract_ninja: Rc<dyn subjects::INinja> = concrete_ninja;
+
+ let display_ninja_result = abstract_ninja.cast::<dyn Display>();
+
+ assert!(matches!(
+ display_ninja_result,
+ Err(CastError::GetCasterFailed(_))
+ ));
+ }
+
+ #[test]
+ fn can_cast_rc_from_any()
+ {
+ let concrete_ninja = Rc::new(subjects::Ninja);
+
+ let any_ninja: Rc<dyn Any> = concrete_ninja;
+
+ let debug_ninja_result = any_ninja.cast::<dyn Debug>();
+
+ assert!(debug_ninja_result.is_ok());
+ }
+}
diff --git a/src/libs/intertrait/mod.rs b/src/libs/intertrait/mod.rs
index 78f98b1..4a9322f 100644
--- a/src/libs/intertrait/mod.rs
+++ b/src/libs/intertrait/mod.rs
@@ -244,46 +244,39 @@ impl CastFromSync for dyn Any + Sync + Send + 'static
#[cfg(test)]
mod tests
{
- use std::any::{Any, TypeId};
- use std::fmt::{Debug, Display};
+ use std::any::TypeId;
+ use std::fmt::Debug;
use linkme::distributed_slice;
- #[allow(clippy::wildcard_imports)]
- use super::cast::*;
use super::*;
+ use crate::test_utils::subjects;
#[distributed_slice(super::CASTERS)]
static TEST_CASTER: fn() -> (TypeId, BoxedCaster) = create_test_caster;
- #[derive(Debug)]
- struct TestStruct;
-
- trait SourceTrait: CastFromSync {}
-
- impl SourceTrait for TestStruct {}
-
fn create_test_caster() -> (TypeId, BoxedCaster)
{
- let type_id = TypeId::of::<TestStruct>();
+ let type_id = TypeId::of::<subjects::Ninja>();
+
let caster = Box::new(Caster::<dyn Debug> {
cast_box: |from| {
let concrete = from
- .downcast::<TestStruct>()
+ .downcast::<subjects::Ninja>()
.map_err(|_| CasterError::CastBoxFailed)?;
Ok(concrete as Box<dyn Debug>)
},
cast_rc: |from| {
let concrete = from
- .downcast::<TestStruct>()
+ .downcast::<subjects::Ninja>()
.map_err(|_| CasterError::CastRcFailed)?;
Ok(concrete as Rc<dyn Debug>)
},
opt_cast_arc: Some(|from| {
let concrete = from
- .downcast::<TestStruct>()
+ .downcast::<subjects::Ninja>()
.map_err(|_| CasterError::CastArcFailed)?;
Ok(concrete as Arc<dyn Debug>)
@@ -291,85 +284,4 @@ mod tests
});
(type_id, caster)
}
-
- #[test]
- fn cast_box()
- {
- let ts = Box::new(TestStruct);
- let st: Box<dyn SourceTrait> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
-
- #[test]
- fn cast_rc()
- {
- let ts = Rc::new(TestStruct);
- let st: Rc<dyn SourceTrait> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
-
- #[test]
- fn cast_arc()
- {
- let ts = Arc::new(TestStruct);
- let st: Arc<dyn SourceTrait> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
-
- #[test]
- fn cast_box_wrong()
- {
- let ts = Box::new(TestStruct);
- let st: Box<dyn SourceTrait> = ts;
- let display = st.cast::<dyn Display>();
- assert!(display.is_err());
- }
-
- #[test]
- fn cast_rc_wrong()
- {
- let ts = Rc::new(TestStruct);
- let st: Rc<dyn SourceTrait> = ts;
- let display = st.cast::<dyn Display>();
- assert!(display.is_err());
- }
-
- #[test]
- fn cast_arc_wrong()
- {
- let ts = Arc::new(TestStruct);
- let st: Arc<dyn SourceTrait> = ts;
- let display = st.cast::<dyn Display>();
- assert!(display.is_err());
- }
-
- #[test]
- fn cast_box_from_any()
- {
- let ts = Box::new(TestStruct);
- let st: Box<dyn Any> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
-
- #[test]
- fn cast_rc_from_any()
- {
- let ts = Rc::new(TestStruct);
- let st: Rc<dyn Any> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
-
- #[test]
- fn cast_arc_from_any()
- {
- let ts = Arc::new(TestStruct);
- let st: Arc<dyn Any + Send + Sync> = ts;
- let debug = st.cast::<dyn Debug>();
- assert!(debug.is_ok());
- }
}
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