Align parameter formats for zone data commands

Seems silly that one command uses --tlds for the required parameter, while the other one doesn't.

As part of this change, create a DateParameter for commands that require only a date (i.e. a DateTime parameter restricted to midnight UTC).

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148106721

javatests/google/registry/tools/params/DateParameterTest.java

@@ -0,0 +1,100 @@
+// 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 google.registry.testing.ExceptionRule;
+import org.joda.time.DateTime;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Unit tests for {@link DateParameter}. */
+@RunWith(JUnit4.class)
+public class DateParameterTest {
+
+  @Rule
+  public final ExceptionRule thrown = new ExceptionRule();
+
+  private final DateParameter instance = new DateParameter();
+
+  @Test
+  public void testConvert_onlyDate() throws Exception {
+    String exampleDate = "2014-01-01";
+    assertThat(instance.convert(exampleDate)).isEqualTo(DateTime.parse("2014-01-01T00:00:00Z"));
+  }
+
+  @Test
+  public void testConvert_numeric_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("1234");
+  }
+
+  @Test
+  public void testConvert_validDateAndTime_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("2014-01-01T01:02:03.004Z");
+  }
+
+  @Test
+  public void testConvert_invalidDate_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("2014-13-33");
+  }
+
+  @Test
+  public void testConvert_null_throwsException() throws Exception {
+    thrown.expect(NullPointerException.class);
+    instance.convert(null);
+  }
+
+  @Test
+  public void testConvert_empty_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("");
+  }
+
+  @Test
+  public void testConvert_sillyString_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("foo");
+  }
+
+  @Test
+  public void testConvert_partialDate_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("2014-01");
+  }
+
+  @Test
+  public void testConvert_onlyTime_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("T01:02:03");
+  }
+
+  @Test
+  public void testConvert_partialDateAndPartialTime_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("9T9");
+  }
+
+  @Test
+  public void testConvert_dateAndPartialTime_throwsException() throws Exception {
+    thrown.expect(IllegalArgumentException.class);
+    instance.convert("2014-01-01T01:02");
+  }
+}