Fix #1342: Handle value classes for type parameters and don't unbox value classes returned as interface/supertype by ianbrandt · Pull Request #1442 · mockk/mockk

Don't unbox values for method return of value classes that are returned as their interface or supertype to avoid a `ClassCastException` (fixes mockk#1342).

ianbrandt

committed

Added more tests for `maybeUnboxValueForMethodReturn(Method)` handling of value classes.

ianbrandt

committed

Added `.kotlin/` directory to `.gitignore` (created by Kotlin Gradle Plugin temporarily during `gradlew check`).

ianbrandt

committed

Improved test property naming.

ianbrandt

committed

Added tests for suspend functions returning nullable value classes.

ianbrandt

committed

Added support for value classes as generic function return and property types.

ianbrandt

committed

Improved handling for value classes as generic function return and property types, and added KDoc.

ianbrandt

committed

Streamlined KDoc and code comments for clarity.

ianbrandt

committed

Reverted redundant .gitignore entry for .kotlin directory.

ianbrandt

committed

Restored some original comments and formatting after rebase.

ianbrandt

committed

Added more `ValueClassSupportTest` test cases covering https://github.com/mockk/mockk/issues/1103 and https://github.com/mockk/mockk/issues/1308 to ensure those fixes are preserved by the https://g…

ianbrandt

committed

Ran `spotlessApply` Gradle task to align formatting.

ianbrandt

committed

Updated the `:test-modules:client-tests` Kotlinx Coroutines dependency version to align with the `io_mockk_kotlin_version` Gradle project property, if set.

ianbrandt

committed

Replaced `MethodHandle` usage with `Method` for value class unboxing to support backwards compatibility with Android API level 21.

ianbrandt

committed

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Fix #1342: Handle value classes for type parameters and don't unbox value classes returned as interface/supertype#1442

Fix #1342: Handle value classes for type parameters and don't unbox value classes returned as interface/supertype#1442
Raibaz merged 14 commits intomockk:masterfrom
ianbrandt:issue-1342

Commits on Jan 19, 2026

Don't unbox values for method return of value classes that are returned as their interface or supertype to avoid a `ClassCastException` (fixes mockk#1342).

Added more tests for `maybeUnboxValueForMethodReturn(Method)` handling of value classes.

Added `.kotlin/` directory to `.gitignore` (created by Kotlin Gradle Plugin temporarily during `gradlew check`).

Improved test property naming.

Added tests for suspend functions returning nullable value classes.

Added support for value classes as generic function return and property types.

Improved handling for value classes as generic function return and property types, and added KDoc.

Streamlined KDoc and code comments for clarity.

Reverted redundant .gitignore entry for .kotlin directory.

Restored some original comments and formatting after rebase.

Added more `ValueClassSupportTest` test cases covering https://github.com/mockk/mockk/issues/1103 and https://github.com/mockk/mockk/issues/1308 to ensure those fixes are preserved by the https://g…

Ran `spotlessApply` Gradle task to align formatting.

Updated the `:test-modules:client-tests` Kotlinx Coroutines dependency version to align with the `io_mockk_kotlin_version` Gradle project property, if set.

Replaced `MethodHandle` usage with `Method` for value class unboxing to support backwards compatibility with Android API level 21.