"errors"
	"math"
	"strings"
	"testing"
	"time"
)

func TestIsValidDBNameChar(t *testing.T) {
	for _, db := range []string{"db", "dbName", "db_name", "db1", "1dbname", "db$name"} {
		if fields := strings.FieldsFunc(db, IsValidDBNameChar); len(fields) != 1 {
			t.Fatalf("failed to parse db name %v", db)
		}
	}
}

func TestCheckTruth(t *testing.T) {
	checkTruthTests := []struct {
		v   string
		out bool
	}{

	"istio.io/istio/cni/pkg/util"
	"istio.io/istio/pkg/file"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/util/sets"
)

var (
	injectAnnotationKey = annotation.SidecarInject.Name
	sidecarStatusKey    = annotation.SidecarStatus.Name

	podRetrievalMaxRetries = 30
	podRetrievalInterval   = 1 * time.Second
)

const (
	ISTIOINIT  = "istio-init"
	ISTIOPROXY = "istio-proxy"
)

      <extension name="InstanceMethodNamingConvention" enabled="true">
        <option name="m_regex" value="[a-z][A-Za-z\d]*" />
        <option name="m_minLength" value="2" />
        <option name="m_maxLength" value="999" />
      </extension>
      <extension name="StaticMethodNamingConvention" enabled="true">
        <option name="m_regex" value="[a-z][A-Za-z\d]*" />

            return true;
        }

        final String myName = getSchedulerTargetName();

        final String[] targets = target.split(",");
        for (String name : targets) {
            name = name.trim();
            if (Constants.DEFAULT_JOB_TARGET.equalsIgnoreCase(name) || StringUtil.isNotBlank(myName) && myName.equalsIgnoreCase(name)) {
                return true;
            }
        }

	loggerOnce logger.LogOnce

	quitCh chan struct{}
}

// ID - returns target ID.
func (target *MySQLTarget) ID() event.TargetID {
	return target.id
}

// Name - returns the Name of the target.
func (target *MySQLTarget) Name() string {
	return target.ID().String()
}

// Store returns any underlying store if set.
func (target *MySQLTarget) Store() event.TargetStore {
	return target.store
}

Following example shows connecting via ftp client using `minioadmin` credentials, and list a bucket named `runner`:

```
ftp localhost -P 8021
Connected to localhost.
220 Welcome to MinIO FTP Server
Name (localhost:user): minioadmin
331 User name ok, password required
Password:
230 Password ok, continue
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls runner/
229 Entering Extended Passive Mode (|||39155|)

        is MethodDeclaration -> tryResolve({ it.resolve().qualifiedSignature }) { "${inferClassName(unit)}.${it.name}()" }
        is AnnotationDeclaration -> tryResolve({ it.resolve().qualifiedName }) { "${inferClassName(unit)}.${it.name}" }
        is FieldDeclaration -> tryResolve({ "${inferClassName(unit)}.${it.resolve().name}" }) { inferClassName(unit) }
        is PackageDeclaration -> "${it.nameAsString} (package-info.java)"

				// incompatible with buckets - these are
				// skipped, like the meta-bucket.
				if isReservedOrInvalidBucket(volInfo.Name, false) {
					continue
				}
				mu.Lock()
				if _, ok := healBuckets[volInfo.Name]; !ok {
					healBuckets[volInfo.Name] = volInfo
				}
				mu.Unlock()
			}
			return nil
		}, index)
	}

	if err := renameAll(pathJoin(export, minioMetaMultipartBucket),
		tmpOld, export); err != nil && err != errFileNotFound {
		bootLogIf(GlobalContext, fmt.Errorf("unable to rename (%s -> %s) %w, drive may be faulty please investigate",
			pathJoin(export, minioMetaMultipartBucket),
			tmpOld,
			osErrToFileErr(err)))
	}

				region)
			return
		}
		s.region = region
	}

	name := env.Get(EnvSiteName, siteKV.Get(NameKey))
	if name != "" {
		if !validSiteNameRegex.MatchString(name) {
			err = Errorf(
				"site name '%s' is invalid, expected simple characters such as [cal-rack0, myname...]",
				name)
			return
		}
		s.name = name
	}
	return
}