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

1 vote304 views1 answer
'typ "{}"not recognised (need to install plug-in?)'.format(self.typ) NotImplementedError: typ "['safe', 'rt']"not recognised (need to install plug-in?)
Shell/Bash
0 vote377 views1 answer
How to read from keyboard in bash and store in a variable
Shell/Bash
1 vote308 views1 answer
Adoni check migration status
Shell/Bash
0 vote357 views1 answer
Grub file path
Shell/Bash
2 votes356 views2 answers
Download sublime text linux
Shell/Bash
11 votes325 views2 answers
How to create environment in python3.7
Shell/Bash
0 vote328 views9 answers
Bash similiar to choice in cmd
Shell/Bash
56 votes336 views1 answer
Macbook git user config global
Shell/Bash
0 vote365 views1 answer
Configuring the external URL for GitLab
Shell/Bash
0 vote325 views1 answer
Wpa passphrase
Shell/Bash