Rust testsuites: only attempt reading available golden tests

Author: szg251

testsuites/lbt-plutus/lbt-plutus-rust/tests/utils.rs

@@ -33,11 +33,15 @@ pub fn assert_goldens<T>(
             title, ext, golden_dir
         );
     }
-    golden_data.iter().enumerate().for_each(|(ix, golden)| {
-        let (fp, text) = goldens.get(&ix).expect(&format!(
-            "Golden value index not in goldens {} {}",
-            title, ix
-        ));
-        assert_golden(golden, ix, fp, text);
-    });
+    golden_data
+        .iter()
+        .take(goldens.len())
+        .enumerate()
+        .for_each(|(ix, golden)| {
+            let (fp, text) = goldens.get(&ix).expect(&format!(
+                "Golden value index not in goldens {} {}",
+                title, ix
+            ));
+            assert_golden(golden, ix, fp, text);
+        });
 }

testsuites/lbt-prelude/lbt-prelude-rust/tests/main.rs

@@ -39,13 +39,17 @@ mod json_tests {
                 title, ext, golden_dir
             );
         }
-        golden_data.iter().enumerate().for_each(|(ix, golden)| {
-            let (fp, text) = goldens.get(&ix).expect(&format!(
-                "Golden value index not in goldens {} {}",
-                title, ix
-            ));
-            assert_golden(golden, ix, fp, text);
-        });
+        golden_data
+            .iter()
+            .take(goldens.len())
+            .enumerate()
+            .for_each(|(ix, golden)| {
+                let (fp, text) = goldens.get(&ix).expect(&format!(
+                    "Golden value index not in goldens {} {}",
+                    title, ix
+                ));
+                assert_golden(golden, ix, fp, text);
+            });
     }
     fn from_to_golden_test<T: Json + std::fmt::Debug + Eq>(title: &str, goldens: Vec<T>) {
         let golden_dir = "data/lbt-prelude-golden-data";