test(stackable-versioned): Update doc tests

Author: Techassi

crates/stackable-versioned-macros/src/lib.rs

@@ -478,11 +478,16 @@ mod utils;
 ///     #[versioned(changed(
 ///         since = "v1beta1",
 ///         from_name = "prev_bar",
-///         from_type = "u16"
+///         from_type = "u16",
+///         downgrade_with = usize_to_u16
 ///     ))]
 ///     bar: usize,
 ///     baz: bool,
 /// }
+///
+/// fn usize_to_u16(input: usize) -> u16 {
+///     input.try_into().unwrap()
+/// }
 /// ```
 ///
 /// <details>
@@ -591,8 +596,8 @@ mod utils;
 /// ### Custom conversion function at field level
 ///
 /// As stated in the [`changed()`](#changed-action) section, a custom conversion
-/// function can be provided using the `convert_with` argument. A simple example
-/// looks like this:
+/// function can be provided using the `downgrade_with` and `upgrade_with`
+/// argument. A simple example looks like this:
 ///
 /// ```
 /// # use stackable_versioned_macros::versioned;
@@ -604,13 +609,13 @@ mod utils;
 ///     #[versioned(changed(
 ///         since = "v1beta1",
 ///         from_type = "u8",
-///         convert_with = "u8_to_u16"
+///         downgrade_with = "u16_to_u8"
 ///     ))]
 ///     bar: u16,
 /// }
 ///
-/// fn u8_to_u16(old: u8) -> u16 {
-///     old as u16
+/// fn u16_to_u8(input: u16) -> u8 {
+///     input.try_into().unwrap()
 /// }
 /// ```
 ///
@@ -628,7 +633,15 @@ mod utils;
 /// impl ::std::convert::From<v1alpha1::Foo> for v1beta1::Foo {
 ///     fn from(__sv_foo: v1alpha1::Foo) -> Self {
 ///         Self {
-///             bar: u8_to_u16(__sv_foo.bar),
+///             bar: __sv_foo.bar.into(),
+///         }
+///     }
+/// }
+///
+/// impl ::std::convert::From<v1beta1::Foo> for v1alpha1::Foo {
+///     fn from(__sv_foo: v1beta1::Foo) -> Self {
+///         Self {
+///             bar: u16_to_u8(__sv_foo.bar),
 ///         }
 ///     }
 /// }
@@ -718,12 +731,16 @@ use serde::{Deserialize, Serialize};
 pub struct FooSpec {
     #[versioned(
         added(since = "v1beta1"),
-        changed(since = "v1", from_name = "prev_bar", from_type = "u16")
+        changed(since = "v1", from_name = "prev_bar", from_type = "u16", downgrade_with = usize_to_u16)
     )]
     bar: usize,
     baz: bool,
 }
 
+fn usize_to_u16(input: usize) -> u16 {
+    input.try_into().unwrap()
+}
+
 # fn main() {
 let merged_crd = Foo::merged_crd(Foo::V1).unwrap();
 println!("{}", serde_yaml::to_string(&merged_crd).unwrap());