content: /*
   * Copyright 2015, The Android Open Source Project
   *
   * 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 com.example.android.testing.espresso.CustomMatcherSample;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  import static org.hamcrest.Matchers.is;
  
  import android.view.View;
  import android.widget.EditText;
  import androidx.test.espresso.matcher.BoundedMatcher;
  import org.hamcrest.Description;
  import org.hamcrest.Matcher;
  
  /**
   * A custom matcher that checks the hint property of an {@link EditText}. It
   * accepts either a {@link String} or a {@link Matcher}.
   */
  public class HintMatcher {
  
      static Matcher<View> withHint(final String substring) {
          return withHint(is(substring));
      }
  
      static Matcher<View> withHint(final Matcher<String> stringMatcher) {
          checkNotNull(stringMatcher);
          return new BoundedMatcher<View, EditText>(EditText.class) {
  
              @Override
              public boolean matchesSafely(EditText view) {
                  final CharSequence hint = view.getHint();
                  return hint != null && stringMatcher.matches(hint.toString());
              }
  
              @Override
              public void describeTo(Description description) {
                  description.appendText("with hint: ");
                  stringMatcher.describeTo(description);
              }
          };
      }
  }
  