Skeleton Tests and other enhancements
Release date: Jun 06, 2022
Diffblue Cover Enhancements
Skeleton tests are now available in Diffblue Cover IntelliJ plugin! There are two ways of creating skeleton tests:
- Directly, by selecting
Write Skeleton Testswhen right-clicking on or a method name. Diffblue Cover creates a single skeleton test for the method, and does not analyse your code.
- Indirectly, via the usual “Write Tests” request. Diffblue Cover analyses the method and related classes to write tests. If Diffblue Cover is unable to write complete tests (or partial tests if this option is enabled), it falls back to offering a single skeleton test for the method instead. This means that Diffblue Cover always creates at least one test for each of your methods.
For further information, and an example of a skeleton test, please see our documentation at: https://docs.diffblue.com/knowledge-base/intellij/skeleton-tests/
This release, we also:
- Provide additional information when a class fails to load due to a static initialization failure
- No longer create tests for default constructors in utility classes, thus avoiding the situation where there are no fields that could be asserted on.
Developer Edition trial available
We are delighted to now offer a 14-day trial version of our Developer Edition, which includes the Diffblue Cover CLI, as part of our new licensing option. We’re really excited that you can now “try before you buy”! To download your trial of Diffblue Cover Developer Edition, please click here. Full information on all our options is also available here.
How do I automatically maintain all of these tests?
Use Diffblue Cover on any CI platform to automatically update your unit tests and catch regressions for every commit - watch this video to learn more.
Full Release Notes
CLI: Cover’s installer now removes previous installation entries whilst upgrading to a newer version. [Ref: TG-17155]
Cover now has improved output code reporting, correctly identifying more
R006s (Static initializer failed), some of which which were previously reported as
R005(Unable to load class). [Ref: TG-17097]
CLI: Cover now provides a
coverage-reportsoption to allow coverage reports to be generated without writing tests. [Ref: TG-17091]
Cover now has improved handling of implicit default constructors of static utility classes. [Ref: TG-16609]
Resolved an issue which caused Cover to report an
F009(Internal Error) with
Act steps must be contained in the steps. [Ref: TG-17105]
Resolved an issue which, in some circumstances, caused Cover to report an
F009(Internal Error) with
NoClassDefFoundErrorafter attempting to temporarily disable logging in the code for which tests were being written. [Ref: TG-17104]
Resolved an issue which caused Cover to write tests which assert on loopback and private network IP addresses. [Ref: TG-11594]
IntelliJ Plugin: Resolved an issue which, in some circumstances, caused Cover to write
@DataJpaTests with missing
propertiessetup. [Ref: TG-17175]
CLI: The command
dcover clean --failingdoes not work on Gradle projects. This command is now deprecated and
dcover validateshould be used instead. [Ref: TG-11707]
For multi-module projects,
--coverage-reportsneeds to be run in the sub-modules, not from the root module with
--working-directory. [Ref: TG-16876]