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/*
 * Copyright (c) 2014 Google, Inc.
 *
 * 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.google.common.truth;

import java.util.List;

/**
 * A common supertype for Array subjects, abstracting some common display and error infrastructure.
 *
 * @author Christian Gruber ([email protected])
 */
public abstract class AbstractArraySubject, T>
    extends Subject, T> {

  public AbstractArraySubject(FailureStrategy failureStrategy, T subject) {
    super(failureStrategy, subject);
  }

  @Override public S named(String name) { return (S)super.named(name); }

  protected abstract String underlyingType();

  protected abstract List listRepresentation();

  @Override protected String getDisplaySubject() {
    return (internalCustomName() == null)
        ? "<(" + underlyingType() + "[]) " + listRepresentation() + ">"
        : "\"" + this.internalCustomName() + "\"";
  }

  protected void failWithBadType(Object expected) {
    String expectedType = (expected.getClass().isArray())
        ? expected.getClass().getComponentType().getName() + "[]"
        : expected.getClass().getName();
    failWithRawMessage("Incompatible types compared. expected: %s, actual: %s[]",
        Platform.compressType(expectedType), underlyingType());
  }

}




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