/**
* Test method for traverseFileSystem
*
* @throws Exception
*/
@Test
public void testTraverseFileSystem() throws Exception {
/*
* Create an object of type FileSystemTraverseCallback that'll be called for each
* file system path that's reported. Calling getNames() returns an array of Strings
* containing the file names.
*/
TestCallback callbackCollector = new TestCallback();
/* Test a non-existent directory */
SystemUtils.traverseFileSystem(
"/non-existent",
SystemUtils.REPORT_DIRECTORIES | SystemUtils.REPORT_FILES,
callbackCollector);
String names[] = callbackCollector.getNames();
assertEquals(0, names.length);
/* report all directories in our test hierarchy */
SystemUtils.traverseFileSystem(
ourTempDir.toString(), SystemUtils.REPORT_DIRECTORIES, callbackCollector);
names = callbackCollector.getNames();
assertEquals(5, names.length);
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {"", "/dirA", "/dirA/nested", "/dirA/nested/dirB", "/dirC"});
/* report all files in our test hierarchy */
SystemUtils.traverseFileSystem(
ourTempDir.toString(), SystemUtils.REPORT_FILES, callbackCollector);
names = callbackCollector.getNames();
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {
"/dirA/fileInDirA",
"/dirA/nested/dirB/aThirdFileInDirB",
"/dirA/nested/dirB/anotherFileInDirB",
"/dirA/nested/dirB/fileInDirB",
"/dirA/nested/dirB/onelastFileInDirB",
"/topLevelFile"
});
/* report all files and directories in our test hierarchy */
SystemUtils.traverseFileSystem(
ourTempDir.toString(),
SystemUtils.REPORT_FILES | SystemUtils.REPORT_DIRECTORIES,
callbackCollector);
names = callbackCollector.getNames();
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {
"",
"/dirA",
"/dirA/fileInDirA",
"/dirA/nested",
"/dirA/nested/dirB",
"/dirA/nested/dirB/aThirdFileInDirB",
"/dirA/nested/dirB/anotherFileInDirB",
"/dirA/nested/dirB/fileInDirB",
"/dirA/nested/dirB/onelastFileInDirB",
"/dirC",
"/topLevelFile"
});
/* filter out the "nested" directory */
SystemUtils.traverseFileSystem(
ourTempDir.toString(),
null,
"nested",
SystemUtils.REPORT_FILES | SystemUtils.REPORT_DIRECTORIES,
callbackCollector);
names = callbackCollector.getNames();
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {"", "/dirA", "/dirA/fileInDirA", "/dirC", "/topLevelFile"});
/* filter out the "nested" and "dirC" directories */
SystemUtils.traverseFileSystem(
ourTempDir.toString(),
null,
"nested|dirC",
SystemUtils.REPORT_FILES | SystemUtils.REPORT_DIRECTORIES,
callbackCollector);
names = callbackCollector.getNames();
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {"", "/dirA", "/dirA/fileInDirA", "/topLevelFile"});
/* only return the files that have "In" in their name */
SystemUtils.traverseFileSystem(
ourTempDir.toString(), ".*In.*", null, SystemUtils.REPORT_FILES, callbackCollector);
names = callbackCollector.getNames();
assertSortedPathArraysEqual(
ourTempDir.toString(),
names,
new String[] {
"/dirA/fileInDirA",
"/dirA/nested/dirB/aThirdFileInDirB",
"/dirA/nested/dirB/anotherFileInDirB",
"/dirA/nested/dirB/fileInDirB",
"/dirA/nested/dirB/onelastFileInDirB"
});
}
