BT

InfoQ Homepage News JUnit 4.4 Released

JUnit 4.4 Released

Bookmarks
The new version of the unit testing suite JUnit has been released and is downloadable from Sourceforge. JUnit 4.4 has some noteable new features:
  • assertThat – provides more readable (and flexible) tests using the value/matcher pattern (as introduced by the xMock frameworks), allowing for more readable error messages.

  • For example:

    assertTrue(responseString.contains("color") || responseString.contains("colour"));
    // ==> failure message:
    // java.lang.AssertionError:

    Becomes:

    assertThat(responseString, anyOf(containsString("color"), containsString("colour")));
    // ==> failure message:
    // java.lang.AssertionError:
    // Expected: (a string containing "color" or a string containing "colour")
    // got: "Please choose a font"


    You can read more about assertThat in Joe Walnes’s blog.

  • Assumptions & Theories (via the assertThat method) enabling the test writer make assumptions in their tests about the environment they’re testing in, useful when testing against an entity outside of the domain of the test.

The latest release is available for download, as is the updated cookbook.

Rate this Article

Adoption
Style

Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

  • Your message is awaiting moderation. Thank you for participating in the discussion.

    Its nice. One question about assumptions, if assumptions are not met(e.g. file separator is not the one mentioned in assumption) then by default test will pass. Is there a to make the test fail..if assumptions are not met?

  • Re: Nice

    by Alex Popescu /

    Your message is awaiting moderation. Thank you for participating in the discussion.

    Its nice. One question about assumptions, if assumptions are not met(e.g. file separator is not the one mentioned in assumption) then by default test will pass.

    If I am recalling correctly, this is the current behavior but may change in the next versions to ignored.
    If you want your test to fail, then you should use normal asserts and not assumptions.

    bests,
    ./alex
    --
    .w( the_mindstorm )p.
    ________________________
    Alexandru Popescu
    Senior Software Eng.
    InfoQ TechLead&CoFounder

  • I don't know...

    by Joe Wolf /

    Your message is awaiting moderation. Thank you for participating in the discussion.

    I personally find the assertTrue code more readable than assertThat for the example provided, although the assertThat assertion failure message is much better.

  • ass hat?

    by Jason Carreira /

    Your message is awaiting moderation. Thank you for participating in the discussion.

    I've probably been reading Hani's blog too long, 'cause assertThat looked like "ass hat" to me when I first looked...

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

BT

Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
Country/Zone:
State/Province/Region:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.