TestValidatingSubject.java

/**
 * 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.schemarepo;

import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class TestValidatingSubject {
  private static final String ACCEPT = "accept";
  private static final String REJECT = "reject";
  private static final String FOO = "foo";
  private static final String BAR = "bar";
  private static final String BAZ = "baz";
  private static final String ACCEPT_VALIDATOR = "accept.validator";

  private InMemoryRepository repo;

  @Before
  public void setUpRepository() {
    repo = new InMemoryRepository(new ValidatorFactory.Builder().
        setValidator(ACCEPT_VALIDATOR, new Validator(){
         @Override
          public void validate(String schemaToValidate,
              Iterable<SchemaEntry> schemasInOrder)
              throws SchemaValidationException {
           // nothing
          }
        }).build());
  }

  @After
  public void tearDownRepository() {
    repo = null;
  }

  @Test
  public void testSuccessfulValidation() throws SchemaValidationException {

    Subject accept = repo.register(ACCEPT, new SubjectConfig.Builder()
      .addValidator(ACCEPT_VALIDATOR).build());

    SchemaEntry foo = accept.registerIfLatest(FOO,  null);
    Assert.assertNotNull("failed to register schema", foo);
    SchemaEntry bar = accept.registerIfLatest(BAR, foo);
    Assert.assertNotNull("failed to register schema", bar);
    SchemaEntry none = accept.registerIfLatest("nothing", null);
    Assert.assertNull(none);
    SchemaEntry baz = accept.register(BAZ);
    Assert.assertNotNull("failed to register schema", baz);

  }

  @Test
  public void testValidatorConstruction() {
    Assert.assertNull("Must pass null through Subject.validateWith()",
        Subject.validatingSubject(null,
            new ValidatorFactory.Builder().build()));
  }

  @Test(expected=SchemaValidationException.class)
  public void testCannotRegister() throws SchemaValidationException {
    Subject reject = repo.register(REJECT, new SubjectConfig.Builder()
      .addValidator(ValidatorFactory.REJECT_VALIDATOR).build());
    reject.register(FOO);
  }

  @Test(expected=SchemaValidationException.class)
  public void testCannotRegisterIfLatest() throws SchemaValidationException {
    Subject reject = repo.register(REJECT, new SubjectConfig.Builder()
      .addValidator(ValidatorFactory.REJECT_VALIDATOR).build());
    reject.registerIfLatest(FOO, null);
  }

}