google-nomulus/javatests/google/registry/monitoring/metrics/MetricSchemaTest.java

// 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.monitoring.metrics;

import static com.google.common.truth.Truth.assertThat;
import static google.registry.testing.JUnitBackports.expectThrows;

import com.google.common.collect.ImmutableSet;
import google.registry.monitoring.metrics.MetricSchema.Kind;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Unit tests for {@link MetricSchema}. */
@RunWith(JUnit4.class)
public class MetricSchemaTest {

  @Test
  public void testCreate_blankNameField_throwsException() {
    IllegalArgumentException thrown =
        expectThrows(
            IllegalArgumentException.class,
            () ->
                MetricSchema.create(
                    "",
                    "description",
                    "valueDisplayName",
                    Kind.GAUGE,
                    ImmutableSet.of()));
    assertThat(thrown).hasMessageThat().contains("Name must not be blank");
  }

  @Test
  public void testCreate_blankDescriptionField_throwsException() {
    IllegalArgumentException thrown =
        expectThrows(
            IllegalArgumentException.class,
            () ->
                MetricSchema.create(
                    "/name", "", "valueDisplayName", Kind.GAUGE, ImmutableSet.of()));
    assertThat(thrown).hasMessageThat().contains("Description must not be blank");
  }

  @Test
  public void testCreate_blankValueDisplayNameField_throwsException() {
    IllegalArgumentException thrown =
        expectThrows(
            IllegalArgumentException.class,
            () -> MetricSchema.create("/name", "description", "", Kind.GAUGE, ImmutableSet.of()));
    assertThat(thrown).hasMessageThat().contains("Value Display Name must not be empty");
  }

  @Test
  public void testCreate_nakedNames_throwsException() {
    IllegalArgumentException thrown =
        expectThrows(
            IllegalArgumentException.class,
            () ->
                MetricSchema.create(
                    "foo", "description", "valueDisplayName", Kind.GAUGE, ImmutableSet.of()));
    assertThat(thrown).hasMessageThat().contains("Name must be URL-like and start with a '/'");
  }
}