What's New > Version 2020.08.c

IntelliJ IDEA 2020.2 support

Release date: Aug 30, 2020

Diffblue Cover now supports IntelliJ IDEA 2020.2.

Full Release Notes


  • IntelliJ Plugin: Cover now supports IntelliJ IDEA Community Edition 2020.2 and IntelliJ IDEA Ultimate 2020.2. [Ref: TG-12607]

Resolved Issues

  • CLI: Resolved an issue where Countly-related log messages may appear during execution. [Ref: TG-12565]

  • IntelliJ Plugin: Resolved an issue where Cover may not detect appropriate JUnit version from Gradle projects. [Ref: TG-12556]

  • IntelliJ Plugin: Resolved an issue where one or more Checking environment and preparing to write tests background tasks may persist beyond test creation. [Ref: TG-12539]

  • IntelliJ Plugin: Resolved an issue where selecting ‘Write Tests’ on a class, or method, within a module which contains spaces in the module name, results in a IllegalArgumentException. [Ref: TG-12538]

  • IntelliJ Plugin: Resolved an issue where running failing tests, with Cover’s Compute Changes in Coverage option enabled, may result in a NullPointerException. [Ref: TG-12530]

  • CLI: Resolved an issue where the expanded classpath output may be [truncated]. This output is no longer truncated, in the console output or logfile, when –verbose is specified. [Ref: TG-12519]

  • IntelliJ Plugin: Resolved an issue where a NullPointerException may be thrown when selecting ‘Write Tests’ on a method which has not been indexed by Cover. [Ref: TG-12518]

  • CLI: A JDK available in JAVA_HOME (if any) will now be used during test verification for Gradle projects. [Ref: TG-12397]

  • IntelliJ Plugin: Removed spurious error about missing Spring dependencies. [Ref: TG-12009]

  • CLI: Resolved an issue where Cover could not write tests for projects with JUnit dependencies packaged into fat jars. [Ref: TG-11390]

Known Issues

  • Wrong reason for not creating essential tests for methods in classes without accessible constructors. [Ref: TG-10794]

  • CLI: Windows: creating config.json by outputting --example-config as file causes exceptions. [Ref: TG-11198]

  • CLI: All tests may be discarded in test verification when using --config. [Ref: TG-11475]

  • CLI: dcover clean --working-directory throws an error if --test-output-dir is not provided. [Ref: TG-11665]

  • CLI: dcover fails to generate tests, reporting java.lang.OutOfMemoryError, when analysing projects which spawn a quantity of threads in excess of the operating system’s process thread limit. [Ref: TG-11680]

  • CLI: dcover clean --failing fails when used with a Gradle project. [Ref: TG-11707]

  • Tests are not generated for methods of Spring controllers that contain an autowired field. [Ref: TG-11835]

  • CLI: Test verification may fail on a Gradle project due to an incompatibility between Gradle and Cover. If you encounter this issue, run with --skip-test-verification. [Ref: TG-12045]

  • CLI: Test verification does not work with JUnit versions 5.0 to 5.3. [Ref: TG-12353]

Dependencies for written tests

  • JUnit: 4.7-5.6