AssertContains on strings in jUnit

Question

Is there a nicer way to write in jUnit  String x    foo bar   Assert assertTrue x contains  foo

User · Answer

It s too late  but just to update I got it done with below syntax  import org hamcrest core StringContains  import org junit Assert   Assert assertThat  this contains test   StringContains containsString  test

User · Answer

I ve tried out many answers on this page  none really worked    org hamcrest CoreMatchers containsString does not compile  cannot resolve method  JUnitMatchers containsString is depricated  and refers to CoreMatchers containsString   org hamcrest Matchers containsString  NoSuchMethodError   So instead of writing readable code  I decided to use the simple and workable approach mentioned in the question instead   Hopefully another solution will come up

User · Answer

assertj variant   import org assertj core api Assertions  Assertions assertThat actualStr  contains subStr

User · Answer

If you add in Hamcrest and JUnit4  you could do  String x    quot foo bar quot   Assert assertThat x  CoreMatchers containsString  quot foo quot      With some static imports  it looks a lot better  assertThat x  containsString  quot foo quot      The static imports needed would be  import static org hamcrest MatcherAssert assertThat  import static org hamcrest CoreMatchers containsString

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Use hamcrest Matcher containsString       Hamcrest assertion assertThat person getName    containsString  myName         Error Message java lang AssertionError  Expected  a string containing  myName       got   some other name    You can optional add an even more detail error message      Hamcrest assertion with custom error message assertThat  my error message   person getName    containsString  myName         Error Message java lang AssertionError  my error message Expected  a string containing  myName       got   some other name    Posted my answer to a duplicate question here

User · Answer

Another variant is  Assert assertThat actual  new Matches expectedRegex      Moreover in org mockito internal matchers there are some other interesting matchers  like StartWith  Contains etc

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use fest assert 2 0 whenever possible EDIT  assertj may have more assertions  a fork   assertThat x  contains  foo

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Use the new assertThat syntax together with Hamcrest   It is available starting with JUnit 4 4

User · Answer

You can use assertj-fluent assertions  It has lot of capabilities to write assertions in more human readable - user friendly manner  In your case  it would be  String x    quot foo bar quot    assertThat x  contains  quot foo quot     It is not only for the strings  it can be used to assert lists  collections etc   in a friendlier way

User · Answer

Example  junit version- 4 13   import static org assertj core api Assertions assertThat  import org junit Test   public class TestStr     Test public void testThatStringIsContained        String testStr    hi i am a test string       assertThat testStr  contains  test

[java] AssertContains on strings in jUnit

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