container.size == 1
        container.popConflict().toString() == "b:1,2"
    }

    def "contains multiple conflicting elements"() {
        container.newElement("a", [1, 2], null)
        container.newElement("b", [3, 4], null)
        expect:
        container.size == 2
        container.popConflict().toString() == "a:1,2"
        container.popConflict().toString() == "b:3,4"
    }

    def "pops conflicts orderly"() {

 *
 * <pre>
 * HostAndPort hp = HostAndPort.fromString("[2001:db8::1]")
 *     .withDefaultPort(80)
 *     .requireBracketsForIPv6();
 * hp.getHost();   // returns "2001:db8::1"
 * hp.getPort();   // returns 80
 * hp.toString();  // returns "[2001:db8::1]:80"
 * </pre>
 *
 * <p>Here are some examples of recognized formats:
 *
 * <ul>
 *   <li>example.com
 *   <li>example.com:80
 *   <li>192.0.2.1
 *   <li>192.0.2.1:80

        new NamedWithToString(name: null)    | "toString():null"
        new NamedWithToString(name: "Lajos") | "toString():Lajos"
    }

    def "returns '#expected' when toString() returns #toStringReturns"() {
        def value = Mock(Object)

        when:
        def result = RendererUtils.displayValueOf(value)

        then:
        result == expected
        _ * value.toString() >> toStringReturns

        where:

        value.toString() == "c two three"
        value.toString() == "d two three"
        value.capitalizedDisplayName == "E two three"
        value.capitalizedDisplayName == "F two three"
    }

    def "creates from type and name"() {
        expect:
        def value = Describables.withTypeAndName("some type", "name")
        value.displayName == "some type 'name'"
        value.toString() == "some type 'name'"

            result.setBusinessCategory(DfTypeUtil.toString(source.get("businessCategory")));
            result.setCarLicense(DfTypeUtil.toString(source.get("carLicense")));
            result.setCity(DfTypeUtil.toString(source.get("city")));
            result.setDepartmentNumber(DfTypeUtil.toString(source.get("departmentNumber")));
            result.setDescription(DfTypeUtil.toString(source.get("description")));

    }

    public void debug(CharSequence content) {
        if (isDebugEnabled()) {
            logger.debug(toString(content));
        }
    }

    private String toString(CharSequence content) {
        if (content == null) {
            return "";
        } else {
            return content.toString();
        }
    }

    @Override
    public void debug(CharSequence content, Throwable error) {

        when:
        formatter.node("Some thing.")

        then:
        formatter.toString() == "Some thing."
    }

    def "formats root with no children"() {
        when:
        formatter.node("Some thing.")
        formatter.startChildren()
        formatter.endChildren()

        then:
        formatter.toString() == "Some thing."
    }

    def "formats root with single leaf child"() {
        when:

      return delegate.getId();
    }

    @Override
    public String toString() {
      return delegate.toString();
    }
  }

  private interface Equals {
    @Override
    boolean equals(@Nullable Object obj);

    @Override
    int hashCode();

    @Override
    String toString();
  }

  private static class NoDelegateToEquals implements Equals {

    def "string"() {
        expect:
        MethodDescription.name("a").toString() == "a"
        MethodDescription.name("a").returns(String).toString() == "java.lang.String a"
        MethodDescription.name("a").returns(String).takes().toString() == "java.lang.String a()"
        MethodDescription.name("a").returns(String).owner(String).takes().toString() == "java.lang.String java.lang.String#a()"

  public void testToString_minimal() {
    assertNotNull("toString() should not return null", getMap().toString());
  }

  @CollectionSize.Require(ZERO)
  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
  public void testToString_size0() {
    assertEquals("emptyMap.toString should return {}", "{}", getMap().toString());
  }

  @CollectionSize.Require(ONE)