CODEWITHSUNDEEP
javahamcrest
kism3t
kism3t

Reputation: 1361

Assert Property from List

I have a the following code which I can not figure out why it is not working:

@Test
public void someTest(){

    List<MyItem> i = new ArrayList<>();
    MyItem i1 = new MyItem();
    i1.setName("paul");
    MyItem i2 = new MyItem();
    i2.setName("detlef");
    i.add(i1);
    i.add(i2);

    MatcherAssert.assertThat(i,
            Matchers.contains(
                    HasPropertyWithValue.hasProperty("name", CoreMatchers.is("paul"))));

}

MyItem:

public class MyItem {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(final String name) {
        this.name = name;
    }
}

I found the solution here but my unit test will give an AssertionError:

java.lang.AssertionError: 
Expected: iterable containing [hasProperty("name", is "paul")]
     but: Not matched: <MyItem@4e08711f>
    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)
    at TestHarnes.someTest(TestHarnes.java:115)

Appretiate any help or hint

Upvotes: 2

Views: 735

Answers (3)

Stefan Birkner
Stefan Birkner

Reputation: 24520

If you only want to assert a single item of the list then you need the hasItem matcher. The contains matcher checks all items of a list.

assertThat(i, hasItem(hasProperty("name", is("paul"))));

Upvotes: 1

Piotr Retmańczyk
Piotr Retmańczyk

Reputation: 77

IMHO you should test it this way:

MatcherAssert.assertThat(ACTUAL,is(equalTo(EXPECTED)));

You can check size of the list,get object from the list you want and check if it is equalTo expect data. is and equalTo you should import as static

Upvotes: 0

Sonata
Sonata

Reputation: 2217

I think contains matches all of your items in the list, but your asserting only one item. You need to check for both items or use another matcher, for instance hasItems.

Upvotes: 1

Related Questions