CODEWITHSUNDEEP
javaarraysmultidimensional-arrayjava-8
Hendrik
Hendrik

Reputation: 360

Using Streams with TestFactory

I'm having this method

@TestFactory
Stream<DynamicTest> dynamicTestsFromStream() throws IOException {
    initialize();

    return Stream.of(core).map(
        str -> DynamicTest.dynamicTest("test" + str.toString(), () -> { Just for Testing > Assert.assertTrue(false); }));
}

My core Array contains Elements of Type Tuple4. Tuple4(String a, String b, String c, String d).

When I'm trying to adress the name (i want String c) I get an error, and in the current example my result for str is:Tuple4@4d50efb8, Tuple4@7e2d773b, Tuple4@2173f6d9

Can someone tell me how I can adress the right index for str? since get(int) won't work, because I can't get the current position?

EDIT

When I put Stream.of("A","B","C").map(...); The test is given the right names "test A" ...

So how can I give stream.of() an Array(Object) to name the tests?

Upvotes: 1

Views: 159

Answers (1)

Nicolai Parlog
Nicolai Parlog

Reputation: 51050

With Stream.of(SomeType[]) you run the risk of getting a stream containing just a single element, namely the array. Use Arrays::stream instead.

Assuming core is of type Tuple4[] (if it is not, please include the actual type in the question), you can do as follows:

@TestFactory
Stream<DynamicTest> dynamicTestsFromStream() throws IOException {
    initialize();

    return Arrays.stream(core) // Stream<Tuple4>
            .map(tuple -> DynamicTest.dynamicTest(
                    "test " + tuple.c,
                    () -> { Assert.assertTrue(false); }
    ));
}

Upvotes: 2

Related Questions