add test for get_boolean_from_metadata (#1121)

Signed-off-by: Marijn Valk <[email protected]>

# Description
Adds a test for `get_boolean_from_metadata` from the `DeltaConfig`

# Related Issue(s)
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- closes #106
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# Documentation

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Signed-off-by: Marijn Valk <[email protected]>

rust/src/delta_config.rs

@@ -213,6 +213,31 @@ mod tests {
         )
     }
 
+    #[test]
+    fn get_boolean_from_metadata_test() {
+        let mut md = dummy_metadata();
+
+        // default value is true
+        assert_eq!(
+            ENABLE_EXPIRED_LOG_CLEANUP
+                .get_boolean_from_metadata(&md)
+                .unwrap(),
+            true,
+        );
+
+        // change to false
+        md.configuration.insert(
+            ENABLE_EXPIRED_LOG_CLEANUP.key.to_string(),
+            Some("false".to_string()),
+        );
+        assert_eq!(
+            ENABLE_EXPIRED_LOG_CLEANUP
+                .get_boolean_from_metadata(&md)
+                .unwrap(),
+            false,
+        );
+    }
+
     #[test]
     fn parse_interval_test() {
         assert_eq!(