import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;

import java.util.*;

public class CollectionMapExpression {

    private void collectionMapExpression() {
        List<String> stringList = new ArrayList<>();
        List<String> anotherList = new ArrayList<>();
        Map<String, Integer> keyValueMap = new HashMap<>();

        assertThat(stringList.isEmpty()).as("foo").isEqualTo(true);
        assertThat(stringList.isEmpty()).isTrue();
        assertThat(stringList.contains("foo")).isEqualTo(true);
        assertThat(stringList.contains("foo")).isTrue();
        assertThat(stringList.containsAll(anotherList)).isEqualTo(true);
        assertThat(stringList.containsAll(anotherList)).isTrue();

        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false);
        assertThat(stringList.isEmpty()).isFalse();
        assertThat(stringList.contains("foo")).isEqualTo(false);
        assertThat(stringList.contains("foo")).isFalse();
        assertThat(stringList.containsAll(anotherList)).isEqualTo(false);
        assertThat(stringList.containsAll(anotherList)).isFalse();

        assertThat(keyValueMap.isEmpty()).as("foo").isEqualTo(true);
        assertThat(keyValueMap.isEmpty()).isTrue();
        assertThat(keyValueMap.containsKey("foo")).isEqualTo(true);
        assertThat(keyValueMap.containsKey("foo")).isTrue();
        assertThat(keyValueMap.containsValue(2)).isEqualTo(true);
        assertThat(keyValueMap.containsValue(2)).isTrue();

        assertThat(keyValueMap.isEmpty()).as("foo").isEqualTo(false);
        assertThat(keyValueMap.isEmpty()).isFalse();
        assertThat(keyValueMap.containsKey("foo")).isEqualTo(false);
        assertThat(keyValueMap.containsKey("foo")).isFalse();
        assertThat(keyValueMap.containsValue(2)).isEqualTo(false);
        assertThat(keyValueMap.containsValue(2)).isFalse();

        assertThat(keyValueMap.get("foo")).isEqualTo(2);
        assertThat(keyValueMap.get("foo")).isNotEqualTo(3);
        assertThat(keyValueMap.get("foo")).isEqualTo(null);
        assertThat(keyValueMap.get("foo")).isNull();
        assertThat(keyValueMap.get("foo")).isNotEqualTo(null);
        assertThat(keyValueMap.get("foo")).isNotNull();

        Map<String, String> stringStringMap = new HashMap<>();
        assertThat(stringStringMap.get("foo")).isEqualTo("bar");
        assertThat(stringStringMap.get("foo")).isNotEqualTo("bar");
        assertThat(stringStringMap.get("foo")).isEqualTo(null);
        assertThat(stringStringMap.get("foo")).isNull();
        assertThat(stringStringMap.get("foo")).isNotEqualTo(null);
        assertThat(stringStringMap.get("foo")).isNotNull();

        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false).as("bar").isFalse();
        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false).as("bar").isTrue();
        assertThat(stringList.isEmpty()).as("foo").satisfies(it -> it.booleanValue()).as("bar").isFalse();

        org.junit.Assert.assertThat(stringList, null);
        fail("oh no!");
    }
}