diff --git a/.gitignore b/.gitignore
index 86886d5..6a8b46f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,8 @@ target/
 .project
 *.prefs
 .classpath
+
+## Don't publish.
+/src/test/resources/largeFiles/report-2024-08-23-part1.json
+/src/test/resources/largeFiles/report-2024-08-23-part2.json
+/src/test/resources/largeFiles/report-2024-08-23-part3.json
diff --git a/src/test/java/ch/zizka/yaml/merger/YamlMergerTest.kt b/src/test/java/ch/zizka/yaml/merger/YamlMergerTest.kt
index 9a25cab..dfd6a61 100644
--- a/src/test/java/ch/zizka/yaml/merger/YamlMergerTest.kt
+++ b/src/test/java/ch/zizka/yaml/merger/YamlMergerTest.kt
@@ -1,6 +1,7 @@
 package ch.zizka.yaml.merger
 
 import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
@@ -39,6 +40,15 @@ class YamlMergerTest {
         Assertions.assertEquals(dbProperties!!["hibernate.dialect"], "org.hibernate.dialect.MySQL5InnoDBDialect", "wrong db url")
     }
 
+    @Test @Disabled("I need to generate some test data.")
+    fun testMerge2Files_Large() {
+        val merged = merger.mergeYamlFiles(arrayOf(
+            getResourceFile("largeFiles_/report-2024-08-23-part1.json"),
+            getResourceFile("largeFiles_/report-2024-08-23-part2.json"),
+        ))
+        val mergedYmlString = merger.exportToString(merged)
+    }
+
     @Test
     fun testMergeFileIntoSelf() {
         val merged = merger.mergeYamlFiles(arrayOf(YAML_1, YAML_1))