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 vote161 views1 answer
'gh-pages' is not recognized as an internal or external command
Shell/Bash
14 votes128 views3 answers
Docker remove all containers
Shell/Bash
0 vote204 views1 answer
Put files in every subfolder in powershell
Shell/Bash
2 votes144 views1 answer
How to update discord on ubuntu
Shell/Bash
0 vote154 views1 answer
Dos search include subdirectories
Shell/Bash
-1 vote119 views1 answer
Fish shell ubuntu
Shell/Bash
9 votes142 views2 answers
How to use my windows file through bash
Shell/Bash
1 vote163 views2 answers
Ecmascript 7 getmonth as 2 digits
Shell/Bash
27 votes159 views6 answers
How to revert a commit in git
Shell/Bash
0 vote170 views1 answer
Install pavucontrol
Shell/Bash