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## cascading
Class PlatformTestCase

    java.lang.Object
      junit.framework.Assert
          junit.framework.TestCase
              cascading.CascadingTestCase
                  cascading.PlatformTestCase

All Implemented Interfaces:
  Serializable, junit.framework.Test

    public class PlatformTestCase

extends CascadingTestCase

PlatformTestCase is the base class for JUnit tests that are platform agnostic. That is using the `TestPlatform` interface each test can be run against all supported platform like Hadoop or Cascading local mode.

It is strongly recommended users look at the source of `FieldedPipesPlatformTest` or related tests to see how this class is used.

This test case uses the `PlatformRunner` to inject the available platform providers which implement the TestPlatform base class.

By default the PlatformRunner looks for "cascading/platform/platform.properties" file in the classpath, and instantiates the class specified by the "platform.classname" property. If more than one "platform.properties" resource is found, each class is instantiated and the whole suite of tests will be run against each instance.

To limit this, setting the system property "platform.includes" to list the platform names that should be run will cause the PlatformRunner to ignore any unlisted platforms. Thus setting `platform.includes=local`, only local mode will run even if the "hadoop" platform was found in the classpath.

To pass custom properties to each test to be used by the `FlowConnector`, create system properties prefixed by "platform.". These properties, minus the "platform." prefix in the property name, will override any defaults.

Subclasses of PlatformTestCase can set "`useCluster` to `true` on the constructor if the underlying platform can boot a cluster for testing. By setting the system property "test.cluster.enabled" to false, this can be deactivated in order to temporarily speed test execution. By default `useCluster` is `false`, typically user tests don't need to have a cluster running to test their functionality so leaving the default is reasonable.

See Also:
  Serialized Form

Field Summary
`org.junit.rules.TestName` | `name`
`static String` | `ROOT_OUTPUT_PATH`

Constructor Summary
`PlatformTestCase()`
`PlatformTestCase(boolean useCluster)`
`PlatformTestCase(boolean useCluster, int numMapTasks, int numReduceTasks)`

Method Summary
`protected void` | `copyFromLocal(String inputFile)`
`protected Map<Object,Object>` | `disableDebug()`
`String` | `getOutputPath(String path)`
`protected String[]` | `getPathElements()`
`TestPlatform` | `getPlatform()`
`String` | `getPlatformName()`
`Map<Object,Object>` | `getProperties()`
`protected String` | `getRootPath()`
`String` | `getTestCaseName()`
`String` | `getTestName()`
`static String` | `getTestRoot()`
`void` | `installPlatform(TestPlatform platform)`
`void` | `setUp()`
`void` | `tearDown()`

Methods inherited from class cascading.CascadingTestCase
`asCollection, asCollection, asCollection, asCollection, asList, asList, asSet, asSet, getSinkAsList, getSourceAsList, invokeAggregator, invokeAggregator, invokeAggregator, invokeBuffer, invokeBuffer, invokeBuffer, invokeFilter, invokeFilter, invokeFilter, invokeFilter, invokeFunction, invokeFunction, invokeFunction, invokeFunction, validateLength, validateLength, validateLength, validateLength, validateLength, validateLength, validateLength, validateLength, validateLength, validateLength`

Methods inherited from class junit.framework.TestCase
`assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### ROOT_OUTPUT_PATH

    public static final String ROOT_OUTPUT_PATH

See Also:
  Constant Field Values

### name

    public transient org.junit.rules.TestName name

Constructor Detail

### PlatformTestCase

    public PlatformTestCase(boolean useCluster)

### PlatformTestCase

    public PlatformTestCase(boolean useCluster,
                            int numMapTasks,
                            int numReduceTasks)

### PlatformTestCase

    public PlatformTestCase()

Method Detail

### installPlatform

    public void installPlatform(TestPlatform platform)

### getPlatform

    public TestPlatform getPlatform()

### getTestName

    public String getTestName()

### getRootPath

    protected String getRootPath()

### getPathElements

    protected String[] getPathElements()

### getOutputPath

    public String getOutputPath(String path)

### getTestCaseName

    public String getTestCaseName()

### getPlatformName

    public String getPlatformName()

### getTestRoot

    public static String getTestRoot()

### setUp

    public void setUp()
               throws Exception

  Overrides:
    `setUp` in class `junit.framework.TestCase`
  Throws:
    `Exception`

### getProperties

    public Map<Object,Object> getProperties()

### copyFromLocal

    protected void copyFromLocal(String inputFile)
                          throws IOException

  Throws:
    `IOException`

### disableDebug

    protected Map<Object,Object> disableDebug()

### tearDown

    public void tearDown()
                  throws Exception

  Overrides:
    `tearDown` in class `junit.framework.TestCase`
  Throws:
    `Exception`

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