fix test

Author: Zoran Cvetkov

graph/src/data/store/mod.rs

@@ -914,9 +914,9 @@ impl Entity {
     /// i64 it panics.
     pub fn vid(&self) -> i64 {
         self.get(VID_FIELD)
-            .expect("the vid is set")
+            .expect("the vid must be set")
             .as_int8()
-            .expect("the vid is set to a valid value")
+            .expect("the vid must be set to a valid value")
     }
 
     /// Sets the VID of the entity. The previous one is returned.

store/test-store/tests/postgres/relational.rs

@@ -778,7 +778,8 @@ fn enum_arrays() {
         let spectrum = entity! { THINGS_SCHEMA =>
             id: "rainbow",
             main: "yellow",
-            all: vec!["yellow", "red", "BLUE"]
+            all: vec!["yellow", "red", "BLUE"],
+            vid: 0i64
         };
 
         insert_entity(