error: The method assertThat(T, Matcher<? super T>) in the type MatcherAssert is not applicable for the arguments (List<String>, Matcher<Iterable<Integer>>)

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.equalTo;

boolean a;
boolean b;

// all statements test the same
assertThat(a, equalTo(b));
assertThat(a, is(equalTo(b)));
assertThat(a, is(b));

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4.2

Catherine Bell 125 points

                                    assertThat(&quot;test&quot;, anyOf(is(&quot;testing&quot;), containsString(&quot;est&quot;)));

Thank you! 5

4.2 (5 Votes)

Omar Abdelrahim 105 points

                                    // JUnit 4 for equals check
assertEquals(expected, actual);
// Hamcrest for equals check
assertThat(actual, is(equalTo(expected)));

// JUnit 4 for not equals check
assertNotEquals(expected, actual)
// Hamcrest for not equals check
assertThat(actual, is(not(equalTo(expected))));

Thank you! 0

3.5

Brian Hitchcock 100 points

                                    assertTrue(result instanceof String);
// error message:
java.lang.AssertionError
    at org.junit.Assert.fail(Assert.java:86)
    at org.junit.Assert.assertTrue(Assert.java:41)
    at org.junit.Assert.assertTrue(Assert.java:52)
// ...


assertEquals(String.class, result.getClass());
// error message:
java.lang.NullPointerException
    at com.vogella.hamcrest.HamcrestTest.test(HamcrestTest.java:30)
// ....


assertThat(result, instanceOf(String.class));
// error message:
java.lang.AssertionError:
Expected: an instance of java.lang.String
     but: null
    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)
// ...

Thank you! 2

3.5 (2 Votes)

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error: The method assertThat(T, Matcher&lt;? super T&gt;) in the type MatcherAssert is not applicable for the arguments (List&lt;String&gt;, Matcher&lt;Iterable&lt;Integer&gt;&gt;)

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error: The method assertThat(T, Matcher<? super T>) in the type MatcherAssert is not applicable for the arguments (List<String>, Matcher<Iterable<Integer>>)