Add test for not supported union in CRD

Signed-off-by: Sebastian Bernauer <sebastian.bernauer@stackable.de>
kube-rs · Mar 24, 2022 · c6d1b6a · c6d1b6a
1 parent ed8f12b
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diff --git a/kube-derive/tests/ui/union_fails.rs b/kube-derive/tests/ui/union_fails.rs
@@ -0,0 +1,10 @@
+use kube_derive::CustomResource;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+#[derive(CustomResource, Serialize, Deserialize, JsonSchema)]
+union FooSpec {
+    int: u32,
+}
+
+fn main() {}
diff --git a/kube-derive/tests/ui/union_fails.stderr b/kube-derive/tests/ui/union_fails.stderr
@@ -0,0 +1,13 @@
+error: Unions can not #[derive(CustomResource)]
+ --> tests/ui/union_fails.rs:6:7
+  |
+6 | union FooSpec {
+  |       ^^^^^^^
+
+error: Serde does not support derive for unions
+ --> tests/ui/union_fails.rs:6:1
+  |
+6 | / union FooSpec {
+7 | |     int: u32,
+8 | | }
+  | |_^