#417 OutOfMemoryError reproduced

src/test/java/issues/Issue417Test.java

@@ -0,0 +1,65 @@
+package issues;
+
+import com.kazurayam.materialstore.base.reduce.MaterialProductGroup;
+import com.kazurayam.materialstore.base.reduce.differ.ImageDifferToPNG;
+import com.kazurayam.materialstore.base.reduce.zipper.MaterialProduct;
+import com.kazurayam.materialstore.core.FileType;
+import com.kazurayam.materialstore.core.IFileType;
+import com.kazurayam.materialstore.core.JobName;
+import com.kazurayam.materialstore.core.JobTimestamp;
+import com.kazurayam.materialstore.core.MaterialList;
+import com.kazurayam.materialstore.core.MaterialstoreException;
+import com.kazurayam.materialstore.core.Metadata;
+import com.kazurayam.materialstore.core.QueryOnMetadata;
+import com.kazurayam.materialstore.core.Store;
+import com.kazurayam.materialstore.core.Stores;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+/**
+ * Reproducing the issue https://github.com/kazurayam/materialstore/issues/417
+ *
+ * com.kazurayam.materialstore.base.reduce.differ.ImageDifferToPNG.stuffDiff(ImageDifferToPNG.java:41　
+ * caused OutOfMemoryError
+ */
+public class Issue417Test {
+
+    private static Path fixtureDir =
+            Paths.get(".").resolve("src/test/fixtures/issue417");
+
+    private static Path workDir =
+            Paths.get(".").resolve("build/tmp/testOutput")
+                    .resolve(Issue417Test.class.getSimpleName());
+    private static Store store;
+    private static JobName jobName = new JobName("NISA_Chronos");
+    private static JobTimestamp jobTimestamp;
+
+    @BeforeAll
+    public static void beforeAll() throws MaterialstoreException {
+        Path rootDir = workDir.resolve("store");
+        store = Stores.newInstance(rootDir);
+        jobTimestamp = JobTimestamp.now();
+        Metadata metadata = Metadata.builder().build();
+        Path pngFile = fixtureDir.resolve("3a98c4ba471f11462d06a4c94ef4daa4010a466a.png");
+        store.write(jobName, jobTimestamp, FileType.PNG, metadata, pngFile);
+    }
+
+    @Test
+    public void test_reproduce() throws MaterialstoreException {
+        MaterialList left = store.select(jobName, jobTimestamp,
+                FileType.PNG, QueryOnMetadata.ANY);
+        MaterialList right = store.select(jobName, JobTimestamp.laterThan(jobTimestamp),
+                FileType.PNG, QueryOnMetadata.ANY);
+        MaterialProductGroup mpg = MaterialProductGroup.builder(left, right).build();
+        MaterialProduct stuffed = new ImageDifferToPNG(store).stuffDiff(mpg.get(0));
+        assertNotNull(stuffed);
+        // OutOfMemoryError will occur
+    }
+
+
+}