MatchingNamesGeneratorTest.java

package org.smoothbuild.builtin.file.match.testing;

import static org.hamcrest.Matchers.contains;
import static org.smoothbuild.builtin.file.match.testing.MatchingNamesGenerator.generateNames;
import static org.testory.Testory.thenReturned;
import static org.testory.Testory.when;

import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;

import org.junit.Test;

public class MatchingNamesGeneratorTest {

  @Test
  public void test() {
    List<String> expected = new ArrayList<>();
    expected.add("xz");

    expected.add("xaz");
    expected.add("xbz");
    expected.add("xcz");

    expected.add("xaaz");
    expected.add("xabz");
    expected.add("xacz");

    expected.add("xbaz");
    expected.add("xbbz");
    expected.add("xbcz");

    expected.add("xcaz");
    expected.add("xcbz");
    expected.add("xccz");

    String[] expectedNames = expected.toArray(new String[expected.size()]);

    when(() -> {
      CollectingConsumer collectingConsumer = new CollectingConsumer();
      generateNames("x*z", collectingConsumer);
      return collectingConsumer.generatedNames;
    });
    thenReturned(contains(expectedNames));
  }

  private static class CollectingConsumer implements Consumer<String> {
    private final List<String> generatedNames = new ArrayList<>();

    public void accept(String name) {
      generatedNames.add(name);
    }
  }
}