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-rw-r--r--serde_dhall/tests/simple_value.rs14
1 files changed, 13 insertions, 1 deletions
diff --git a/serde_dhall/tests/simple_value.rs b/serde_dhall/tests/simple_value.rs
index 3bd9d64..3d40da1 100644
--- a/serde_dhall/tests/simple_value.rs
+++ b/serde_dhall/tests/simple_value.rs
@@ -1,7 +1,7 @@
mod simple_value {
use serde::{Deserialize, Serialize};
use serde_dhall::{
- from_str, serialize, FromDhall, NumKind, SimpleValue, ToDhall,
+ from_str, serialize, FromDhall, NumKind, SimpleValue, ToDhall, Value,
};
fn assert_de<T>(s: &str, x: T)
@@ -54,5 +54,17 @@ mod simple_value {
foo: bool_true.clone(),
},
);
+
+ // Neither a simple value or a simple type.
+ let not_simple = "Type → Type";
+ assert_eq!(
+ from_str(not_simple)
+ .parse::<Value>()
+ .map_err(|e| e.to_string()),
+ Err(format!(
+ "this is neither a simple type nor a simple value: {}",
+ not_simple
+ ))
+ );
}
}