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dongjoon-hyun pushed a commit to branch branch-4.2
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The following commit(s) were added to refs/heads/branch-4.2 by this push:
new bb97b9a9d8d6 [SPARK-56879][CORE][TESTS] Improve `JavaUtilsSuite` to be
more robust
bb97b9a9d8d6 is described below
commit bb97b9a9d8d6cb15f821537347a5f33ad4b6370f
Author: Dongjoon Hyun <[email protected]>
AuthorDate: Fri May 15 14:52:56 2026 -0700
[SPARK-56879][CORE][TESTS] Improve `JavaUtilsSuite` to be more robust
### What changes were proposed in this pull request?
Make `JavaUtilsSuite.testCreateDirectory` scenario 4 skip the `IOException`
assertion when running as `root`.
### Why are the changes needed?
`root` bypasses filesystem permission checks, so `setWritable(false)` does
not prevent directory creation and the test fails under root (e.g.,
Docker-based CI).
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass the CIs.
### Was this patch authored or co-authored using generative AI tooling?
Generated-by: Claude Opus 4.7 (1M context)
Closes #55907 from dongjoon-hyun/SPARK-56879.
Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
(cherry picked from commit 87ed4183ec0ecd118bb51c7ef10143b7a7336199)
Signed-off-by: Dongjoon Hyun <[email protected]>
---
.../src/test/java/org/apache/spark/network/util/JavaUtilsSuite.java | 5 +++++
1 file changed, 5 insertions(+)
diff --git
a/common/network-common/src/test/java/org/apache/spark/network/util/JavaUtilsSuite.java
b/common/network-common/src/test/java/org/apache/spark/network/util/JavaUtilsSuite.java
index 2edeb3f05c9b..64edc0edae6f 100644
---
a/common/network-common/src/test/java/org/apache/spark/network/util/JavaUtilsSuite.java
+++
b/common/network-common/src/test/java/org/apache/spark/network/util/JavaUtilsSuite.java
@@ -23,6 +23,7 @@ import java.nio.file.Files;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assumptions.assumeFalse;
public class JavaUtilsSuite {
@@ -52,6 +53,10 @@ public class JavaUtilsSuite {
// 4. The parent directory cannot write
assertTrue(testDir.canWrite());
assertTrue(testDir.setWritable(false));
+ // Skip when setWritable(false) has no effect (e.g. running as root,
+ // or on a filesystem that ignores POSIX write bits).
+ assumeFalse(testDir.canWrite(),
+ "setWritable(false) had no effect; skipping write-denied scenario");
assertThrows(IOException.class,
() -> JavaUtils.createDirectory(testDirPath, "scenario4"));
assertTrue(testDir.setWritable(true));
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