/** Test the play method, Check if game displays messages appropriately for errors. */
public void testPlay_IncorrectInput() {
// 1) set max guess
int maxGuessNumber = 1000;
// 2) Redirect InputStream used to a test byteArrayInputStream where we have test data
String testUserInput = "hey ready now e";
InputStream stdin = new ByteArrayInputStream(testUserInput.getBytes());
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
// 3) Invoke game play
NumberGuesser guesser = new NumberGuesser(maxGuessNumber, stdin);
guesser.play();
System.out.flush();
// 4) Perform test
assertTrue(baos.toString().contains(NumberGuesser.MSG_VALIDATION_READY));
assertTrue(baos.toString().contains(NumberGuesser.MSG_VALIDATION_INVALID_INPUT));
// 5) Set input stream back and print out game output stream to the console.
System.setOut(old);
System.out.println(MSG_UNIT_TEST_OUTPUT + baos.toString());
}
/** Test the play method. Test to see if the NumberGuesser guesses correctly for three numbers. */
public void testPlay() {
// 1) Choose numbers
int chosenNumber1 = 1;
int chosenNumber2 = 232;
int chosenNumber3 = 1000;
// 2) Redirect InputStream used to a test byteArrayInputStream where we have test data
String testUserInput =
"ready l l l l l l l l l l y ready h h h h h h h h h y ready l l h h h l h h l y e";
InputStream stdin = new ByteArrayInputStream(testUserInput.getBytes());
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
// 3) Invoke game play
NumberGuesser guesser = new NumberGuesser(1000, stdin);
guesser.play();
// 4) Flush output stream
System.out.flush();
// 5) Perform Test
assertTrue(
baos.toString()
.contains(String.format(NumberGuesser.MSG_GUESSED_CORRECTLY, chosenNumber1)));
assertTrue(
baos.toString()
.contains(String.format(NumberGuesser.MSG_GUESSED_CORRECTLY, chosenNumber2)));
assertTrue(
baos.toString()
.contains(String.format(NumberGuesser.MSG_GUESSED_CORRECTLY, chosenNumber3)));
// 6) Set input stream back and print out game output stream to the console.
System.setOut(old);
System.out.println(MSG_UNIT_TEST_OUTPUT + baos.toString());
}
