/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.avro.generic;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.avro.AvroRuntimeException;
import org.apache.avro.Schema;
import org.apache.avro.Schema.Field;
import org.apache.avro.Schema.Type;
import org.apache.avro.generic.GenericData.Record;
import org.codehaus.jackson.node.TextNode;
import org.codehaus.jackson.node.NullNode;
import org.junit.Assert;
import org.junit.Test;
/**
* Unit test for the GenericRecordBuilder class.
*/
public class TestGenericRecordBuilder {
@Test
public void testGenericBuilder() {
Schema schema = recordSchema();
GenericRecordBuilder builder = new GenericRecordBuilder(schema);
// Verify that builder has no fields set after initialization:
for (Field field : schema.getFields()) {
Assert.assertFalse("RecordBuilder should not have field " + field.name(),
builder.has(field.name()));
Assert.assertNull("Field " + field.name() + " should be null",
builder.get(field.name()));
}
// Set field in builder:
builder.set("intField", 1);
List<String> anArray = Arrays.asList(new String[] { "one", "two", "three" });
builder.set("anArray", anArray);
Assert.assertTrue("anArray should be set", builder.has("anArray"));
Assert.assertEquals(anArray, builder.get("anArray"));
Assert.assertFalse("id should not be set", builder.has("id"));
Assert.assertNull(builder.get("id"));
// Build the record, and verify that fields are set:
Record record = builder.build();
Assert.assertEquals(new Integer(1), record.get("intField"));
Assert.assertEquals(anArray, record.get("anArray"));
Assert.assertNotNull(record.get("id"));
Assert.assertEquals("0", record.get("id").toString());
// Test copy constructors:
Assert.assertEquals(builder, new GenericRecordBuilder(builder));
Assert.assertEquals(record, new GenericRecordBuilder(record).build());
// Test clear:
builder.clear("intField");
Assert.assertFalse(builder.has("intField"));
Assert.assertNull(builder.get("intField"));
}
@Test(expected=org.apache.avro.AvroRuntimeException.class)
public void attemptToSetNonNullableFieldToNull() {
new GenericRecordBuilder(recordSchema()).set("intField", null);
}
@Test(expected=org.apache.avro.AvroRuntimeException.class)
public void buildWithoutSettingRequiredFields1() {
new GenericRecordBuilder(recordSchema()).build();
}
@Test()
public void buildWithoutSettingRequiredFields2() {
try {
new GenericRecordBuilder(recordSchema()).
set("anArray", Arrays.asList(new String[] { "one" })).
build();
Assert.fail("Should have thrown " +
AvroRuntimeException.class.getCanonicalName());
} catch (AvroRuntimeException e) {
Assert.assertTrue(e.getMessage().contains("intField"));
}
}
/** Creates a test record schema */
private static Schema recordSchema() {
List<Field> fields = new ArrayList<Field>();
fields.add(new Field("id", Schema.create(Type.STRING), null, new TextNode("0")));
fields.add(new Field("intField", Schema.create(Type.INT), null, null));
fields.add(new Field("anArray", Schema.createArray(Schema.create(Type.STRING)), null, null));
fields.add(new Field("optionalInt", Schema.createUnion
(Arrays.asList(Schema.create(Type.NULL),
Schema.create(Type.INT))),
null, NullNode.getInstance()));
Schema schema = Schema.createRecord("Foo", "test", "mytest", false);
schema.setFields(fields);
return schema;
}
}