Examples with Arbitrary io.vavr.test.Arbitrary used on opensource projects

Example 1 with Arbitrary

use of io.vavr.test.Arbitrary in project tutorials by eugenp.

the class PropertyBasedLongRunningUnitTest method givenArbitrarySeq_whenCheckThatEverySecondElementIsEqualToString_thenTestPass.

@Test
public void givenArbitrarySeq_whenCheckThatEverySecondElementIsEqualToString_thenTestPass() {
    // given
    Arbitrary<Integer> multiplesOf2 = Arbitrary.integer().filter(i -> i > 0).filter(i -> i % 2 == 0 && i % 5 != 0);
    // when
    CheckedFunction1<Integer, Boolean> mustEquals = i -> stringsSupplier().get(i).equals("DividedByTwoWithoutRemainder");
    // then
    CheckResult result = Property.def("Every second element must equal to DividedByTwoWithoutRemainder").forAll(multiplesOf2).suchThat(mustEquals).check(10_000, 100);
    result.assertIsSatisfied();
}