Add Bool tests

Author: madsmtm

objc2/src/bool.rs

@@ -106,3 +106,57 @@ unsafe impl Encode for Bool {
 unsafe impl RefEncode for Bool {
     const ENCODING_REF: Encoding<'static> = Encoding::Pointer(&Self::ENCODING);
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_basic() {
+        let b = Bool::new(true);
+        assert!(b.is_true());
+        assert!(!b.is_false());
+        assert!(bool::from(b));
+        assert_eq!(b.as_raw() as usize, 1);
+
+        let b = Bool::new(false);
+        assert!(!b.is_true());
+        assert!(b.is_false());
+        assert!(!bool::from(b));
+        assert_eq!(b.as_raw() as usize, 0);
+    }
+
+    #[test]
+    fn test_associated_constants() {
+        let b = Bool::YES;
+        assert!(b.is_true());
+        assert_eq!(b.as_raw() as usize, 1);
+
+        let b = Bool::NO;
+        assert!(b.is_false());
+        assert_eq!(b.as_raw() as usize, 0);
+    }
+
+    #[test]
+    fn test_impls() {
+        let b: Bool = Default::default();
+        assert!(b.is_false());
+
+        assert!(Bool::from(true).is_true());
+        assert!(Bool::from(false).is_false());
+
+        assert!(Bool::from(true).is_true());
+        assert!(Bool::from(false).is_false());
+    }
+
+    // Can't really do this test since it won't compile on platforms where
+    // type BOOL = bool.
+    //
+    // #[test]
+    // fn test_outside_normal() {
+    //     let b = Bool::from_raw(42);
+    //     assert!(b.is_true());
+    //     assert!(!b.is_false());
+    //     assert_eq!(b.as_raw(), 42);
+    // }
+}

objc2_sys/src/types.rs

@@ -5,14 +5,17 @@ use crate::{
 };
 
 #[cfg(all(apple, not(target_arch = "aarch64")))]
+// C: (explicitly) signed char
 type BOOL_INNER = i8;
 
 #[cfg(all(gnustep, not(target_arch = "aarch64")))]
 // TODO: Only if STRICT_APPLE_COMPATIBILITY is NOT defined.
 // TODO: (__vxworks || _WIN32) becomes BOOL = c_int.
+// C: unsigned char
 type BOOL_INNER = u8;
 
 #[cfg(target_arch = "aarch64")]
+// C: _Bool
 type BOOL_INNER = bool;
 
 /// The Objective-C `BOOL` type.