1 files changed, 47 insertions, 0 deletions
diff --git a/config-model/src/test/java/com/yahoo/schema/derived/SimpleInheritTestCase.java b/config-model/src/test/java/com/yahoo/schema/derived/SimpleInheritTestCase.java
new file mode 100644
index 00000000000..d8b39bfd978
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+++ b/config-model/src/test/java/com/yahoo/schema/derived/SimpleInheritTestCase.java
@@ -0,0 +1,47 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.schema.derived;
+
+import com.yahoo.schema.Schema;
+import com.yahoo.schema.ApplicationBuilder;
+import com.yahoo.schema.parser.ParseException;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Tests really simple inheriting
+ */
+public class SimpleInheritTestCase extends AbstractExportingTestCase {
+
+    @Test
+    public void testEmptyChild() throws IOException, ParseException {
+        String name = "emptychild";
+        final String expectedResultsDirName = "src/test/derived/" + name + "/";
+
+        ApplicationBuilder builder = new ApplicationBuilder();
+        builder.addSchemaFile(expectedResultsDirName + "parent.sd");
+        builder.addSchemaFile(expectedResultsDirName + "child.sd");
+        builder.build(true);
+
+        Schema schema = builder.getSchema("child");
+
+        String toDirName = "temp/" + name;
+        File toDir = new File(toDirName);
+        toDir.mkdirs();
+        deleteContent(toDir);
+
+        DerivedConfiguration config = new DerivedConfiguration(schema, builder.getRankProfileRegistry());
+        config.export(toDirName);
+
+        checkDir(toDirName, expectedResultsDirName);
+    }
+
+    private void checkDir(String toDirName, String expectedResultsDirName) throws IOException {
+        File[] files = new File(expectedResultsDirName).listFiles();
+        for (File file : files) {
+            if ( ! file.getName().endsWith(".cfg")) continue;
+            assertEqualFiles(file.getPath(), toDirName + "/" + file.getName(), false);
+        }
+    }
+}