fix: gate Iceberg test utilities behind the integration feature

iceberg/Cargo.toml

@@ -8,7 +8,7 @@ license = "Apache-2.0"
 repository = "https://github.com/datafusion-contrib/datafusion-distributed"
 
 [features]
-# Distributed worker support for the test harness.
+# Integration tests and public test utilities, including distributed worker support.
 integration = ["datafusion-distributed/integration"]
 
 [dependencies]

iceberg/README.md

@@ -30,7 +30,7 @@ The default storage factory resolves `file://`, S3 (`s3://`, `s3a://`,
 `IcebergIntegrationOptions` to supply custom storage or an Iceberg runtime.
 
 ```bash
-cargo test -p datafusion-distributed-iceberg
+cargo test -p datafusion-distributed-iceberg --features integration
 ```
 
 Local TPC-H Iceberg benchmarks use the separate

iceberg/src/lib.rs

@@ -16,6 +16,7 @@ mod table_provider;
 mod work_unit_feed;
 
 mod codec;
+#[cfg(any(feature = "integration", test))]
 #[doc(hidden)]
 pub mod test_utils;
 

iceberg/tests/desired_task_count.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use datafusion::common::Result;
     use datafusion_distributed::DistributedExt;
@@ -7,7 +7,6 @@ mod tests {
     };
     use iceberg::spec::{Snapshot, TableMetadata};
 
-    #[cfg(feature = "integration")]
     #[tokio::test]
     async fn executes_with_estimated_scan_tasks() -> Result<()> {
         // 4,480,382 bytes / 1 MB / 2 partitions rounds up to 3 tasks, not all 4 workers.

iceberg/tests/external_table.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use datafusion::error::Result;
     use datafusion_distributed_iceberg::test_utils::{FIXTURE_URI, IcebergTestHarness};

iceberg/tests/filter_pushdown.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use datafusion::error::Result;
     use datafusion_distributed_iceberg::test_utils::IcebergTestHarness;

iceberg/tests/limit_pushdown.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use datafusion::error::Result;
     use datafusion_distributed_iceberg::test_utils::IcebergTestHarness;

iceberg/tests/projection_pushdown.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use datafusion::error::Result;
     use datafusion_distributed_iceberg::test_utils::IcebergTestHarness;

iceberg/tests/statistics.rs

@@ -1,4 +1,4 @@
-#[cfg(test)]
+#[cfg(all(feature = "integration", test))]
 mod tests {
     use std::error::Error;
     use std::sync::Arc;