/**
* Test for the SystemUtils.createTempDir() and SystemUtils.deleteDirectory() methods.
*
* @throws Exception
*/
@Test
public void testCreateDeleteTempDir() throws Exception {
/* create a temporary directory, making sure that it exists after it's created */
File dir1 = SystemUtils.createTempDir();
assertTrue(dir1.exists());
/* create a second temporary directory, making sure it's different from the first */
File dir2 = SystemUtils.createTempDir();
assertTrue(dir1.exists());
assertNotSame(dir1.toString(), dir2.toString());
/* store some additional files/directories in the first temp directory */
File subdir1 = new File(dir1, "subdir1");
File subdir2 = new File(dir1, "subdir2");
assertTrue(subdir1.mkdir());
assertTrue(subdir2.mkdir());
assertTrue(new File(dir1, "file1").createNewFile());
assertTrue(new File(dir1, "file2").createNewFile());
assertTrue(new File(subdir1, "file3").createNewFile());
assertTrue(new File(subdir1, "file4").createNewFile());
/* delete the second temp dir */
assertTrue(SystemUtils.deleteDirectory(dir2));
/* delete the first temp dir */
assertTrue(SystemUtils.deleteDirectory(dir1));
}
/**
* 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"
});
}
/**
* Test method for {@link com.buildml.utils.os.SystemUtils#executeShellCmd(java.lang.String[],
* java.lang.String)}.
*
* @throws InterruptedException
* @throws IOException
*/
@Test
public void testExecuteShellCmd() throws IOException, InterruptedException {
ShellResult sr;
/* Execute an invalid command - should return an IOException */
try {
sr = SystemUtils.executeShellCmd(new String[] {"/blah"}, "Hello World\n");
fail("Failed to throw IOException when executing invalid command");
} catch (IOException ex) {
/* passed */
}
/* request a specific error code - our perl script always does exit() with it's second argument */
sr = SystemUtils.executeShellCmd(new String[] {ourTempExe.toString(), "0", "23"}, "\n");
assertEquals(sr.getReturnCode(), 23);
/* Simply echo back our stdin - the stdout should be identical to the stdin we provided. */
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), "0", "0"}, "Hello World\n");
assertEquals(sr.getReturnCode(), 0);
assertEquals("Hello World\n", sr.getStdout());
assertEquals("", sr.getStderr());
/* Same, but with multiple lines of text. */
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), "0", "0"}, "Hello World\nHow are you?\n");
assertEquals(sr.getReturnCode(), 0);
assertEquals("Hello World\nHow are you?\n", sr.getStdout());
assertEquals("", sr.getStderr());
/*
* Now get the program to generate some of its own output - that is, 5 letters on stdout
* and 5 digits on stderr.
*/
sr = SystemUtils.executeShellCmd(new String[] {ourTempExe.toString(), "5", "0"}, "Hi\n");
assertEquals(sr.getReturnCode(), 0);
assertEquals("Hi\nABCDE\n", sr.getStdout());
assertEquals("01234\n", sr.getStderr());
/*
* Now try a really really big case, where the stdout and stderr will certainly be intermingled.
*/
int count = 250000;
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), String.valueOf(count)}, "");
assertEquals(sr.getReturnCode(), 0);
/* first, check the lengths */
String stdOut = sr.getStdout();
String stdErr = sr.getStderr();
assertEquals(count + 1, stdOut.length()); /* include the trailing \n */
assertEquals(count + 1, stdErr.length());
/* now check each individual character of what was returned */
for (int i = 0; i != count; i++) {
char ch = stdOut.charAt(i);
int num = (int) stdErr.charAt(i) - '0';
assertEquals('A' + (i % 26), ch);
assertEquals(i % 10, num);
}
/*
* Test the non-buffering variant. Even though there's output, we shouldn't get any
* of it.
*/
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), "0", "0"}, "Hello World\n", null, false, null);
assertEquals(sr.getReturnCode(), 0);
assertEquals("", sr.getStdout());
assertEquals("", sr.getStderr());
/*
* Test with an invalid working directory
*/
try {
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), "0", "0"},
"Hello World\n",
null,
false,
new File("/invalid-path"));
fail("Failed to throw IOException when executing in invalid directory.");
} catch (IOException ex) {
/* passed */
}
/*
* Test with a valid working directory
*/
sr =
SystemUtils.executeShellCmd(
new String[] {ourTempExe.toString(), "0", "0"},
"Hello World\n",
null,
false,
new File("/tmp"));
assertEquals(sr.getReturnCode(), 0);
assertEquals("", sr.getStdout());
assertEquals("", sr.getStderr());
/*
* Note: we can't automatically test the echoToOutput option, unless we had a way to
* observe our own standard output.
*/
}