[GitHub] [incubator-hudi] pratyakshsharma commented on a change in pull request #1524: Adding a way to post process schema after it is fetched

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pratyakshsharma commented on a change in pull request #1524: Adding a way to post process schema after it is fetched
URL: https://github.com/apache/incubator-hudi/pull/1524#discussion_r410180045
 
 

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 File path: hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java
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 @@ -0,0 +1,61 @@
+package org.apache.hudi.utilities;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.IOException;
+import org.apache.avro.Schema;
+import org.apache.avro.Schema.Type;
+import org.apache.avro.SchemaBuilder;
+import org.apache.hudi.common.config.TypedProperties;
+import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.utilities.schema.SchemaPostProcessor;
+import org.apache.hudi.utilities.schema.SchemaProvider;
+import org.apache.hudi.utilities.schema.SchemaProvider.Config;
+import org.apache.spark.api.java.JavaSparkContext;
+import org.junit.Test;
+
+public class TestSchemaPostProcessor {
+
+  private TypedProperties properties = new TypedProperties();
+
+  @Test
+  public void testPostProcessor() throws IOException {
+    properties.put(Config.SCHEMA_POST_PROCESSOR_PROP, DummySchemaPostProcessor.class.getName());
+
+    JavaSparkContext jsc =
+        UtilHelpers.buildSparkContext(this.getClass().getName() + "-hoodie", "local[2]");
+    SchemaProvider provider =
+        UtilHelpers.createSchemaProvider(DummySchemaProvider.class.getName(), properties, jsc);
+
+    Schema schema = provider.getSourceSchema();
+    assertEquals(schema.getType(), Type.RECORD);
+    assertEquals(schema.getName(), "test");
+    assertNotNull(schema.getField("testString"));
+  }
+
+  public static class DummySchemaProvider extends SchemaProvider {
 
 Review comment:
   Can we try to use the one from TestHoodieDeltaStreamer? That would help avoid code duplication. 

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