/** Basic success test for {@link FizzBuzz#fizzBuzz(int)} in the range 1-20 */
@Test
public void testFizzBuzz() {
int range = 20;
String expected =
"1 2 fizz 4 buzz fizz 7 8 fizz buzz 11 fizz 13 14 fizzbuzz 16" + " 17 fizz 19 buzz";
FizzBuzz fizzBuzzer = new FizzBuzz();
ArrayList<String> results = fizzBuzzer.fizzBuzz(range);
assertTrue(results.size() == range);
StringBuilder resultString = new StringBuilder();
for (String result : results) {
resultString.append(result);
}
// Verify that we got the expected output
assertTrue(resultString.toString().trim().equals(expected));
}
@Test
public void testFizzBuzzCalculation() {
Assert.assertEquals("1\n", FizzBuzz.calculate(1));
Assert.assertEquals("2\n", FizzBuzz.calculate(2));
Assert.assertEquals("Fizz\n", FizzBuzz.calculate(3));
Assert.assertEquals("4\n", FizzBuzz.calculate(4));
Assert.assertEquals("Buzz\n", FizzBuzz.calculate(5));
Assert.assertEquals("FizzBuzz\n", FizzBuzz.calculate(15));
}
@Test
public void 通して実行できるかどうか() {
FizzBuzz.main(null);
}
@Test
public void 三と五の倍数の場合() {
assertEquals("FizzBuzz", FizzBuzz.eval(15));
}
@Test
public void 五の倍数の場合() {
assertEquals("Buzz", FizzBuzz.eval(20));
}
@Test
public void 三の倍数でも五の倍数でもない場合() {
assertEquals("8", FizzBuzz.eval(8));
}
@Test
public void testJunitBasic() {
FizzBuzz ok = new FizzBuzz();
assertEquals("1", ok.test("1"));
}
@Test
public void getFizzBuzzWord_NumberIsNotMultipleOfThreeOrFive_ShouldReturnNull() {
assertNull(fizzBuzz.getFizzBuzzWord(4));
}
@Test
public void getFizzBuzzWord_NumberIsMultipleOfThreeAndFive_ShouldReturnFizzBuzz() {
assertThat(fizzBuzz.getFizzBuzzWord(15), is("FizzBuzz"));
}
@Test
public void getFizzBuzzWord_NumberIsMultipleOfFive_ShouldReturnBuzz() {
assertThat(fizzBuzz.getFizzBuzzWord(5), is("Buzz"));
}
@Test
public void Fizz() {
FizzBuzz fb = new FizzBuzz();
assertEquals("Fizz", fb.fizzBuzz(3));
}
@Test(expected = RuntimeException.class)
public void FizzNegative() {
FizzBuzz fb = new FizzBuzz();
fb.fizzBuzz(-1);
}
private void assertFizzBuzz(String expected, int n) {
assertEquals(Integer.toString(n), expected, fizzbuzz.get(n));
}
