org.apache.tinkerpop.gremlin.util

## Class TestSupport

- java.lang.Object
- - org.apache.tinkerpop.gremlin.util.TestSupport

- Direct Known Subclasses:
    TestHelper

      public class TestSupport
      extends Object

  This is a utility class that is for support of various testing activities and is not meant to be used in other contexts. It is not explicitly in a test package given our dependency hierarchy.
  Author:
    Stephen Mallette (http://stephen.genoprime.com)

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `TEST_DATA_RELATIVE_DIR`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `TestSupport()`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static String` | `cleanPathSegment(String toClean)` Removes characters that aren't acceptable in a file path (mostly for windows).
    `static File` | `generateTempFile(Class<?> clazz, String fileName, String fileNameSuffix)` Creates a `File` reference in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp`.
    `static File` | `generateTempFileFromResource(Class<?> graphClass, Class<?> resourceClass, String resourceName, String extension)` Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
    `static File` | `generateTempFileFromResource(Class<?> graphClass, Class<?> resourceClass, String resourceName, String extension, boolean overwrite)` Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
    `static File` | `generateTempFileFromResource(Class<?> resourceClass, String resourceName, String extension)` Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
    `static File` | `getRootOfBuildDirectory(Class<?> clazz)` Gets and/or creates the root of the test data directory.
    `static String` | `makeTestDataDirectory(Class<?> clazz, String... childPath)` Creates a `File` reference that .
    `static String` | `makeTestDataFile(Class<?> clazz, String fileName)`
    `static String` | `makeTestDataFile(Class<?> clazz, String subdir, String fileName)`
    `static File` | `makeTestDataPath(Class<?> clazz, String... childPath)` Creates a `File` reference that points to a directory relative to the supplied class in the `/target` directory.

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### TEST_DATA_RELATIVE_DIR

          public static final String TEST_DATA_RELATIVE_DIR

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### TestSupport

          protected TestSupport()

  - ### Method Detail

    - #### makeTestDataPath

          public static File makeTestDataPath(Class<?> clazz,
                                              String... childPath)

      Creates a `File` reference that points to a directory relative to the supplied class in the `/target` directory. Each `childPath` passed introduces a new sub-directory and all are placed below the `TEST_DATA_RELATIVE_DIR`. For example, calling this method with "a", "b", and "c" as the `childPath` arguments would yield a relative directory like: `test-case-data/clazz/a/b/c`. It is a good idea to use the test class for the `clazz` argument so that it's easy to find the data if necessary after test execution.

      Avoid using makeTestDataPath(...).getAbsolutePath() and makeTestDataPath(...).toString() that produces platform-dependent paths, that are incompatible with regular expressions and escape characters. Instead use `Storage.toPath(File)`

    - #### makeTestDataDirectory

          public static String makeTestDataDirectory(Class<?> clazz,
                                                     String... childPath)

      Creates a `File` reference that . For example, calling this method with "a", "b", and "c" as the `childPath` arguments would yield a relative directory like: `test-case-data/clazz/a/b/c`. It is a good idea to use the test class for the `clazz` argument so that it's easy to find the data if necessary after test execution.
      Returns:
        UNIX-formatted path to a directory in the underlying `Storage`. The directory is relative to the supplied class in the `/target` directory. Each `childPath` passed introduces a new sub-directory and all are placed below the `TEST_DATA_RELATIVE_DIR`

    - #### makeTestDataFile

          public static String makeTestDataFile(Class<?> clazz,
                                                String fileName)

      Parameters:
        `clazz` -
        `fileName` -
      Returns:
        UNIX-formatted path to a fileName in the underlying `Storage`. The file is relative to the supplied class in the `/target` directory.

    - #### makeTestDataFile

          public static String makeTestDataFile(Class<?> clazz,
                                                String subdir,
                                                String fileName)

      Parameters:
        `clazz` -
        `subdir` -
        `fileName` -
      Returns:
        UNIX-formatted path to a subdir/fileName in the underlying `Storage`. The file is relative to the supplied class in the `/target` directory.

    - #### getRootOfBuildDirectory

          public static File getRootOfBuildDirectory(Class<?> clazz)

      Gets and/or creates the root of the test data directory. This method is here as a convenience and should not be used to store test data. Use `makeTestDataPath(Class, String...)` instead.

    - #### generateTempFile

          public static File generateTempFile(Class<?> clazz,
                                              String fileName,
                                              String fileNameSuffix)
                                       throws IOException

      Creates a `File` reference in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp`.
      Throws:
        `IOException`

    - #### generateTempFileFromResource

          public static File generateTempFileFromResource(Class<?> resourceClass,
                                                          String resourceName,
                                                          String extension)
                                                   throws IOException

      Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
      Throws:
        `IOException`

    - #### generateTempFileFromResource

          public static File generateTempFileFromResource(Class<?> graphClass,
                                                          Class<?> resourceClass,
                                                          String resourceName,
                                                          String extension)
                                                   throws IOException

      Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
      Throws:
        `IOException`

    - #### generateTempFileFromResource

          public static File generateTempFileFromResource(Class<?> graphClass,
                                                          Class<?> resourceClass,
                                                          String resourceName,
                                                          String extension,
                                                          boolean overwrite)
                                                   throws IOException

      Copies a file stored as part of a resource to the file system in the path returned from `makeTestDataPath(java.lang.Class<?>, java.lang.String...)` in a subdirectory called `temp/resources`.
      Throws:
        `IOException`

    - #### cleanPathSegment

          public static String cleanPathSegment(String toClean)

      Removes characters that aren't acceptable in a file path (mostly for windows).

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