org.apache.hadoop.hbase

Class GenericTestUtils

java.lang.Object

org.apache.hadoop.hbase.GenericTestUtils

public abstract class GenericTestUtils
extends Object

Test provides some very generic helpers which might be used across the tests

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GenericTestUtils.DelayAnswer Mockito answer helper that triggers one latch as soon as the method is called, then waits on another before continuing.
static class	GenericTestUtils.DelegateAnswer An Answer implementation that simply forwards all calls through to a delegate.
static class	GenericTestUtils.SleepAnswer An Answer implementation which sleeps for a random number of milliseconds between 0 and a configurable value before delegating to the real implementation of the method.

Field Summary

Fields

Modifier and Type	Field and Description
private static AtomicInteger	sequence

Constructor Summary

Constructors

Constructor and Description
GenericTestUtils()

Method Summary

Modifier and Type	Method and Description
static void	assertExists(File f) Assert that a given file exists.
static void	assertGlobEquals(File dir, String pattern, String... expectedMatches) List all of the files in 'dir' that match the regex 'pattern'.
static void	assertMatches(String output, String pattern)
static void	assertNoThreadsMatching(String regex) Assert that there are no threads running whose name matches the given regular expression.
static void	assertValueNear(long expected, long actual, long allowedError)
static void	assertValueWithinRange(long expectedMin, long expectedMax, long actual)
static String	getMethodName() Extracts the name of the method where the invocation has happened
static int	uniqueSequenceId() Generates a process-wide unique sequence number.
static void	waitFor(org.apache.hbase.thirdparty.com.google.common.base.Supplier<Boolean> check, int checkEveryMillis, int waitForMillis)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

sequence

private static final AtomicInteger sequence

Constructor Detail

GenericTestUtils

public GenericTestUtils()

Method Detail

getMethodName

public static String getMethodName()

Extracts the name of the method where the invocation has happened

Returns:

String name of the invoking method

uniqueSequenceId

public static int uniqueSequenceId()

Generates a process-wide unique sequence number.

Returns:

an unique sequence number

assertExists

public static void assertExists(File f)

Assert that a given file exists.

assertGlobEquals

public static void assertGlobEquals(File dir,
                                    String pattern,
                                    String... expectedMatches)
                             throws IOException

List all of the files in 'dir' that match the regex 'pattern'. Then check that this list is identical to 'expectedMatches'.

Throws:

IOException - if the dir is inaccessible

waitFor

public static void waitFor(org.apache.hbase.thirdparty.com.google.common.base.Supplier<Boolean> check,
                           int checkEveryMillis,
                           int waitForMillis)
                    throws TimeoutException,
                           InterruptedException

Throws:

TimeoutException

InterruptedException

assertMatches

public static void assertMatches(String output,
                                 String pattern)

assertValueNear

public static void assertValueNear(long expected,
                                   long actual,
                                   long allowedError)

assertValueWithinRange

public static void assertValueWithinRange(long expectedMin,
                                          long expectedMax,
                                          long actual)

assertNoThreadsMatching

public static void assertNoThreadsMatching(String regex)

Assert that there are no threads running whose name matches the given regular expression.

Parameters:

regex - the regex to match against