content: /*
   * 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.calcite.avatica.util;
  
  import org.junit.Before;
  import org.junit.Test;
  
  import java.sql.SQLException;
  import java.sql.Time;
  import java.util.Calendar;
  import java.util.Locale;
  import java.util.TimeZone;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  /**
   * Test conversions from SQL {@link Time} to JDBC types in {@link AbstractCursor.TimeAccessor}.
   */
  public class TimeAccessorTest {
  
    private static final Calendar UTC =
        Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.ROOT);
  
    private Cursor.Accessor instance;
    private Calendar localCalendar;
    private Time value;
  
    /**
     * Setup test environment by creating a {@link AbstractCursor.TimeAccessor} that reads from the
     * instance variable {@code value}.
     */
    @Before public void before() {
      final AbstractCursor.Getter getter = new LocalGetter();
      localCalendar = Calendar.getInstance(TimeZone.getDefault(), Locale.ROOT);
      instance = new AbstractCursor.TimeAccessor(getter, localCalendar);
    }
  
    /**
     * Test {@code getTime()} returns the same value as the input time for the local calendar.
     */
    @Test public void testTime() throws SQLException {
      value = new Time(0L);
      assertThat(instance.getTime(null), is(value));
  
      value = Time.valueOf("00:00:00");
      assertThat(instance.getTime(UTC), is(value));
  
      value = Time.valueOf("23:59:59");
      assertThat(instance.getTime(UTC), is(value));
    }
  
    /**
     * Test {@code getTime()} handles time zone conversions relative to the local calendar and not
     * UTC.
     */
    @Test public void testTimeWithCalendar() throws SQLException {
      value = new Time(0L);
  
      final TimeZone minusFiveZone = TimeZone.getTimeZone("GMT-5:00");
      final Calendar minusFiveCal = Calendar.getInstance(minusFiveZone, Locale.ROOT);
      assertThat(instance.getTime(minusFiveCal).getTime(),
          is(5 * DateTimeUtils.MILLIS_PER_HOUR));
  
      final TimeZone plusFiveZone = TimeZone.getTimeZone("GMT+5:00");
      final Calendar plusFiveCal = Calendar.getInstance(plusFiveZone, Locale.ROOT);
      assertThat(instance.getTime(plusFiveCal).getTime(),
          is(-5 * DateTimeUtils.MILLIS_PER_HOUR));
    }
  
    /**
     * Test {@code getString()} returns the same value as the input time.
     */
    @Test public void testStringWithLocalTimeZone() throws SQLException {
      value = Time.valueOf("00:00:00");
      assertThat(instance.getString(), is("00:00:00"));
  
      value = Time.valueOf("23:59:59");
      assertThat(instance.getString(), is("23:59:59"));
    }
  
    /**
     * Test {@code getString()} when the local calendar is UTC, which may be different from the
     * default time zone.
     */
    @Test public void testStringWithUtc() throws SQLException {
      localCalendar.setTimeZone(UTC.getTimeZone());
  
      value = new Time(0L);
      assertThat(instance.getString(), is("00:00:00"));
  
      value = new Time(DateTimeUtils.MILLIS_PER_DAY - 1000);
      assertThat(instance.getString(), is("23:59:59"));
    }
  
    /**
     * Test {@code getLong()} returns the same value as the input time.
     */
    @Test public void testLong() throws SQLException {
      value = new Time(0L);
      assertThat(instance.getLong(), is(0L));
  
      value = Time.valueOf("23:59:59");
      final Time longTime = new Time(instance.getLong());
      assertThat(longTime.toString(), is("23:59:59"));
    }
  
    /**
     * Returns the value from the test instance to the accessor.
     */
    private class LocalGetter implements AbstractCursor.Getter {
      @Override public Object getObject() {
        return value;
      }
  
      @Override public boolean wasNull() {
        return value == null;
      }
    }
  }
  