// Copyright 2017 The Nomulus Authors. All Rights Reserved.
//
// Licensed 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 google.registry.tools.params;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.time.Instant;
import java.time.format.DateTimeParseException;
import org.junit.jupiter.api.Test;

/** Unit tests for {@link DateParameter}. */
class DateParameterTest {

  private final DateParameter instance = new DateParameter();

  @Test
  void testConvert_onlyDate() {
    String exampleDate = "2014-01-01";
    assertThat(instance.convert(exampleDate)).isEqualTo(Instant.parse("2014-01-01T00:00:00Z"));
  }

  @Test
  void testConvert_numeric_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("1234"));
  }

  @Test
  void testConvert_validDateAndTime_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("2014-01-01T01:02:03.004Z"));
  }

  @Test
  void testConvert_invalidDate_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("2014-13-33"));
  }

  @Test
  void testConvert_null_throwsException() {
    assertThrows(NullPointerException.class, () -> instance.convert(null));
  }

  @Test
  void testConvert_empty_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert(""));
  }

  @Test
  void testConvert_sillyString_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("foo"));
  }

  @Test
  void testConvert_partialDate_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("2014-01"));
  }

  @Test
  void testConvert_onlyTime_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("T01:02:03"));
  }

  @Test
  void testConvert_partialDateAndPartialTime_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("9T9"));
  }

  @Test
  void testConvert_dateAndPartialTime_throwsException() {
    assertThrows(DateTimeParseException.class, () -> instance.convert("2014-01-01T01:02"));
  }
}
