3 files changed, 55 insertions, 15 deletions
diff --git a/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionFactoryTest.java b/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionFactoryTest.java
index 16fb258..5052a82 100644
--- a/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionFactoryTest.java
+++ b/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionFactoryTest.java
@@ -26,28 +26,48 @@ public class ObjectCollectionFactoryTest {
 
     @Test
     public void fromDirectory1() {
-        fromDirectory(1);
+        fromDirectory(1, 0);
     }
 
     @Test
     public void fromDirectory2() {
-        fromDirectory(2);
+        fromDirectory(2, 0);
     }
 
     @Test
     public void fromDirectory4() {
-        fromDirectory(4);
+        fromDirectory(4, 0);
     }
 
     @Test
     public void fromDirectory8() {
-        fromDirectory(8);
+        fromDirectory(8, 0);
     }
 
-    public void fromDirectory(int threads) {
+    @Test
+    public void fromDirectory1A() {
+        fromDirectory(1, 1000);
+    }
+
+    @Test
+    public void fromDirectory2A() {
+        fromDirectory(2, 1000);
+    }
+
+    @Test
+    public void fromDirectory4A() {
+        fromDirectory(4, 1000);
+    }
+
+    @Test
+    public void fromDirectory8A() {
+        fromDirectory(8, 1000);
+    }
+
+    public void fromDirectory(int threads, int multiThreadThreshold) {
         try {
             ObjectCollectionFactory<Sha256Identifier> factory =
-                    new ObjectCollectionFactory<>(Sha256Identifier.getFactory(), threads);
+                    new ObjectCollectionFactory<>(Sha256Identifier.getFactory(), threads, multiThreadThreshold);
             ObjectCollection collection =
                     factory.fromDirectory(new File("./testfile/ObjectCollectionFactoryTest"));
 
diff --git a/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionSerializerTest.java b/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionSerializerTest.java
index 33f5a9c..d21e5b3 100644
--- a/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionSerializerTest.java
+++ b/src/test/java/com/keuin/kbackupfabric/backup/incremental/ObjectCollectionSerializerTest.java
@@ -13,27 +13,47 @@ public class ObjectCollectionSerializerTest {
 
     @Test
     public void testSerializationConsistency1() throws IOException {
-        testSerializationConsistency(1);
+        testSerializationConsistency(1, 0);
     }
 
     @Test
     public void testSerializationConsistency2() throws IOException {
-        testSerializationConsistency(2);
+        testSerializationConsistency(2, 0);
     }
 
     @Test
     public void testSerializationConsistency4() throws IOException {
-        testSerializationConsistency(4);
+        testSerializationConsistency(4, 0);
     }
 
     @Test
     public void testSerializationConsistency8() throws IOException {
-        testSerializationConsistency(8);
+        testSerializationConsistency(8, 0);
     }
 
-    public void testSerializationConsistency(int threads) throws IOException {
+    @Test
+    public void testSerializationConsistency1A() throws IOException {
+        testSerializationConsistency(1, 1000);
+    }
+
+    @Test
+    public void testSerializationConsistency2A() throws IOException {
+        testSerializationConsistency(2, 1000);
+    }
+
+    @Test
+    public void testSerializationConsistency4A() throws IOException {
+        testSerializationConsistency(4, 1000);
+    }
+
+    @Test
+    public void testSerializationConsistency8A() throws IOException {
+        testSerializationConsistency(8, 1000);
+    }
+
+    public void testSerializationConsistency(int threads, int multiThreadThreshold) throws IOException {
         ObjectCollectionFactory<Sha256Identifier> factory =
-                new ObjectCollectionFactory<>(Sha256Identifier.getFactory(), threads);
+                new ObjectCollectionFactory<>(Sha256Identifier.getFactory(), threads, multiThreadThreshold);
         ObjectCollection collection =
                 factory.fromDirectory(new File("./testfile/ObjectCollectionFactoryTest"));
         File file = new File("./testfile/serialized");
diff --git a/src/test/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethodTest.java b/src/test/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethodTest.java
index 2b4bd94..badc744 100644
--- a/src/test/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethodTest.java
+++ b/src/test/java/com/keuin/kbackupfabric/operation/backup/method/ConfiguredIncrementalBackupMethodTest.java
@@ -21,9 +21,9 @@ public class ConfiguredIncrementalBackupMethodTest {
     private final String destDirectoryName = "destination";
     private final String indexFileName = "index";
 
-    private final double directoryFactor = 0.03;
-    private final double fileFactor = 0.04;
-    private final int maxRandomFileSizeBytes = 1024 * 1024 * 4;
+    private final double directoryFactor = 0.05;
+    private final double fileFactor = 0.1;
+    private final int maxRandomFileSizeBytes = 1024 * 1024;
     private final Function<Integer, Integer> scaleDecayFunc = (x) -> x - 1;
 
     @Test