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-rw-r--r--tvix/eval/proptest-regressions/value/mod.txt7
-rw-r--r--tvix/eval/src/value/mod.rs16
2 files changed, 23 insertions, 0 deletions
diff --git a/tvix/eval/proptest-regressions/value/mod.txt b/tvix/eval/proptest-regressions/value/mod.txt
new file mode 100644
index 000000000000..6817f771f053
--- /dev/null
+++ b/tvix/eval/proptest-regressions/value/mod.txt
@@ -0,0 +1,7 @@
+# Seeds for failure cases proptest has generated in the past. It is
+# automatically read and these particular cases re-run before any
+# novel cases are generated.
+#
+# It is recommended to check this file in to source control so that
+# everyone who runs the test benefits from these saved cases.
+cc 241ec68db9f684f4280d4c7907f7105e7b746df433fbb5cbd6bf45323a7f3be0 # shrinks to input = _ReflexiveArgs { x: List(NixList([List(NixList([Path("𑁯")]))])) }
diff --git a/tvix/eval/src/value/mod.rs b/tvix/eval/src/value/mod.rs
index 85abbcd3eece..594c1fd4735c 100644
--- a/tvix/eval/src/value/mod.rs
+++ b/tvix/eval/src/value/mod.rs
@@ -332,3 +332,19 @@ fn type_error(expected: &'static str, actual: &Value) -> ErrorKind {
         actual: actual.type_of(),
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::properties::eq_laws;
+    use proptest::prelude::ProptestConfig;
+
+    use super::*;
+
+    eq_laws!(
+        Value,
+        ProptestConfig {
+            cases: 20,
+            ..Default::default()
+        }
+    );
+}