messageBuffer.append("', specify the following:").append(LS).append(LS);
            messageBuffer.append("<configuration>").append(LS).append("  ...").append(LS);
            messageBuffer.append("  <").append(param.getName()).append('>');
            if (isArray || isCollection) {
                messageBuffer.append(LS);
                messageBuffer.append("    <item>");
            } else if (isProperties) {

}

func (s *DouglasPeuckerSimplifier) LineString(ls LineString) LineString {
	return lineString(s, ls)
}

type simplifier interface {
	simplify(LineString, bool) (LineString, []int)
}

func lineString(s simplifier, ls LineString) LineString {
	return runSimplify(s, ls)
}

func runSimplify(s simplifier, ls LineString) LineString {
	if len(ls) <= 2 {
		return ls
	}
	ls, _ = s.simplify(ls, false)
	return ls
}

			ls.err(fwd.Label.Pos(), "goto %s jumps into block starting at %s", name, l.parent.start)
		} else {
			ls.err(fwd.Label.Pos(), "label %s not defined", name)
		}
	}

	// spec: "It is illegal to define a label that is never used."
	for _, l := range ls.labels {
		if !l.used {
			l := l.lstmt.Label
			ls.err(l.Pos(), "label %s defined and not used", l.Value)
		}
	}
}

type labelScope struct {

	}

	handler := func(ls *localServer, ln Listener) {
		for {
			c, err := ln.Accept()
			if err != nil {
				return
			}
			c.Close()
		}
	}
	ln := newLocalListener(t, "tcp", &ListenConfig{
		KeepAlive: -1, // prevent calling hook from accepting
	})
	ls := (&streamListener{Listener: ln}).newLocalServer()
	defer ls.teardown()
	if err := ls.buildup(handler); err != nil {
		t.Fatal(err)
	}

// Conveniently, exactly the format that ParseSelector takes.
func (ls Set) String() string {
	selector := make([]string, 0, len(ls))
	for key, value := range ls {
		selector = append(selector, key+"="+value)
	}
	// Sort for determinism.
	sort.StringSlice(selector).Sort()
	return strings.Join(selector, ",")
}

// Has returns whether the provided label exists in the map.
func (ls Set) Has(label string) bool {
	_, exists := ls[label]

limitations under the License.
*/

package fields

import (
	"testing"
)

func matches(t *testing.T, ls Set, want string) {
	if ls.String() != want {
		t.Errorf("Expected '%s', but got '%s'", want, ls.String())
	}
}

func TestSetString(t *testing.T) {
	matches(t, Set{"x": "y"}, "x=y")
	matches(t, Set{"foo": "bar"}, "foo=bar")

        ls.add(columnGidNumber());
        ls.add(columnGivenName());
        ls.add(columnGroups());
        ls.add(columnHomeDirectory());
        ls.add(columnHomePhone());
        ls.add(columnHomePostalAddress());
        ls.add(columnInitials());
        ls.add(columnInternationaliSDNNumber());
        ls.add(columnLabeledURI());
        ls.add(columnMail());
        ls.add(columnMobile());
        ls.add(columnName());

        List<ColumnInfo> ls = newArrayList();
        ls.add(columnAvailable());
        ls.add(columnBoost());
        ls.add(columnCreatedBy());
        ls.add(columnCreatedTime());
        ls.add(columnDescription());
        ls.add(columnHandlerName());
        ls.add(columnHandlerParameter());
        ls.add(columnHandlerScript());
        ls.add(columnName());
        ls.add(columnPermissions());

class ToolchainsBuildingExceptionTest {
    private static final String LS = System.lineSeparator();

    @Test
    void testNoProblems() {
        ToolchainsBuildingException e = new ToolchainsBuildingException(Collections.<Problem>emptyList());
        assertEquals("0 problems were encountered while building the effective toolchains" + LS, e.getMessage());
    }

    @Test
    void testOneProblem() {

        List<ColumnInfo> ls = newArrayList();
        ls.add(columnCreatedBy());
        ls.add(columnCreatedTime());
        ls.add(columnExcludedPaths());
        ls.add(columnIncludedPaths());
        ls.add(columnName());
        ls.add(columnPermissions());
        ls.add(columnSortOrder());
        ls.add(columnUpdatedBy());
        ls.add(columnUpdatedTime());
        ls.add(columnValue());