fix(ipfs): use type name when creating a default deployment hash for tests

Author: isum

chain/substreams/src/data_source.rs

@@ -341,7 +341,7 @@ mod test {
     use graph::{
         blockchain::{DataSource as _, UnresolvedDataSource as _},
         components::link_resolver::{LinkResolver, LinkResolverContext},
-        data::subgraph::LATEST_VERSION,
+        data::subgraph::{DeploymentHash, LATEST_VERSION},
         prelude::{async_trait, serde_yaml, JsonValueStream, Link},
         slog::{o, Discard, Logger},
         substreams::{
@@ -445,7 +445,7 @@ mod test {
         let link_resolver: Arc<dyn LinkResolver> = Arc::new(NoopLinkResolver {});
         let logger = Logger::root(Discard, o!());
         let ds: DataSource = ds
-            .resolve(&Default::default(), &link_resolver, &logger, 0)
+            .resolve(&DeploymentHash::default(), &link_resolver, &logger, 0)
             .await
             .unwrap();
         let expected = DataSource {
@@ -485,7 +485,7 @@ mod test {
         let link_resolver: Arc<dyn LinkResolver> = Arc::new(NoopLinkResolver {});
         let logger = Logger::root(Discard, o!());
         let ds: DataSource = ds
-            .resolve(&Default::default(), &link_resolver, &logger, 0)
+            .resolve(&DeploymentHash::default(), &link_resolver, &logger, 0)
             .await
             .unwrap();
         let expected = DataSource {