Maven test class

mvn install -Dmaven.test.skip=true

# or

mvn install -DskipTests

# If -Dmaven.test.skip=true (or simply -Dmaven.test.skip) is specified, 
# the test-jars aren't built, and any module that relies on them will 
# fail its build.

# In contrast, when you use -DskipTests, Maven does not run the tests, 
# but it does compile them and build the test-jar, making it available 
# for the subsequent modules.

Source: stackoverflow.com

Maven test class

private final ByteArrayOutputStream outContent = new ByteArrayOutputStream();
private final ByteArrayOutputStream errContent = new ByteArrayOutputStream();
private final PrintStream originalOut = System.out;
private final PrintStream originalErr = System.err;

@Before
public void setUpStreams() {
    System.setOut(new PrintStream(outContent));
    System.setErr(new PrintStream(errContent));
}

@After
public void restoreStreams() {
    System.setOut(originalOut);
    System.setErr(originalErr);
}

sample test cases:

@Test
public void out() {
    System.out.print("hello");
    assertEquals("hello", outContent.toString());
}

@Test
public void err() {
    System.err.print("hello again");
    assertEquals("hello again", errContent.toString());
}

Source: stackoverflow.com

Similar codes

23 votes98 views6 answers
Git clone repository
Shell/Bash
6 votes95 views2 answers
Heroku postgres reset database
Shell/Bash
0 vote106 views1 answer
Uninstall r from mac
Shell/Bash
0 vote146 views1 answer
Switch user in ubuntu lxde
Shell/Bash
0 vote90 views1 answer
How to compile cython pyx to executable
Shell/Bash
8 votes105 views1 answer
Ls -F
Shell/Bash
38 votes108 views6 answers
Add remote github
Shell/Bash
0 vote108 views1 answer
Install classnames
Shell/Bash
0 vote121 views1 answer
Download wordpress from wp-cli
Shell/Bash
197 votes270 views6 answers
Git new branch from current
Shell/Bash