.

tests/test.rs

@@ -0,0 +1,24 @@
+use anything::{Anything, Nothing};
+
+pub fn func_1() -> Result<(),Anything> {
+    Err(())?;
+    Ok(())
+}
+
+pub fn func_2() -> Result<(),Anything> {
+    Err("Hello World")?;
+    Ok(())
+}
+
+pub fn func_3() -> Result<(),Nothing> {
+    Err("Hello World")?;
+    Ok(())
+}
+
+
+#[test]
+pub fn test() {
+    println!("{:?}", func_1().unwrap_err());
+    println!("{:?}", func_2().unwrap_err());
+    println!("{:?}", func_3().unwrap_err());
+}