SpineEventEngine · alexander-yevsyukov · Jul 6, 2026 · Jul 6, 2026 · Jul 6, 2026 · Jul 6, 2026
diff --git a/.agents/memory/MEMORY.md b/.agents/memory/MEMORY.md
@@ -11,6 +11,7 @@ See [README.md](README.md) for the format and routing rules.
 
 - [which-fixer applied](which-fixer-applied.md) — bulk sweep done; skill now runs in incremental mode
 - [integration tests stale compiler after version bump](project/integration-tests-stale-compiler-after-version-bump.md) — after a version bump, clean-build `integrationTest` or it may launch the old compiler
+- [functional-test fixtures](project/functional-test-fixtures.md) — authoring `gradle-plugin` TestKit fixtures: copied buildSrc, import rules, Maven Local prerequisite, `tuneRunner()`
 
 ## Reference (external systems)
 

diff --git a/.agents/memory/project/functional-test-fixtures.md b/.agents/memory/project/functional-test-fixtures.md
@@ -0,0 +1,31 @@
+---
+name: functional-test-fixtures
+description: Authoring `gradle-plugin` functionalTest fixture projects — copied buildSrc,
+  import rules, Maven Local prerequisite, runner tuning.
+metadata:
+  type: project
+  since: 2026-07-06
+---
+
+Fixture projects under `gradle-plugin/src/functionalTest/resources/<name>/` are TestKit
+builds materialized via `GradleProject.setupAt(dir).fromResources("<name>")` — see
+`PluginSpec` and `LaunchTaskCoverageSpec` for the setup chain.
+
+**Why:** The fixtures compile against a copied `buildSrc` and resolve the plugin from
+Maven Local, so failures surface only at fixture-build time inside a running test —
+a slow feedback loop when the wiring is wrong (one missed import costs a full
+`functionalTest` cycle).
+
+**How to apply:**
+
+- `copyBuildSrc()` copies the repo's `buildSrc` into the fixture, so fixture build
+  scripts may use `io.spine.dependency.*` objects (e.g. `Jacoco.version`) directly.
+- Top-level buildSrc helpers (`standardSpineSdkRepositories()`) resolve without an
+  import, but `standardToSpineSdk()` needs
+  `import io.spine.gradle.repo.standardToSpineSdk` — copy the imports of an existing
+  fixture (`launch-test`) when creating a new one.
+- The `functionalTest` task depends on `publishToMavenLocal` of every production
+  module; fixtures resolve `id("io.spine.compiler") version "@COMPILER_VERSION@"`
+  (replaced with `Plugin.version`) from `mavenLocal()`.
+- After `builder.create()`, call `project.tuneRunner()` (shared helper in the
+  `functionalTest` source set) instead of tuning the TestKit runner inline.
diff --git a/.agents/tasks/compiler-coverage-plan.md b/.agents/tasks/compiler-coverage-plan.md
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt
@@ -72,7 +72,7 @@ object Compiler : Dependency() {
      * The version of the Compiler dependencies.
      */
     override val version: String
-    private const val fallbackVersion = "2.0.0-SNAPSHOT.057"
+    private const val fallbackVersion = "2.0.0-SNAPSHOT.059"
 
     /**
      * The distinct version of the Compiler used by other build tools.
@@ -81,7 +81,7 @@ object Compiler : Dependency() {
      * transitive dependencies, this is the version used to build the project itself.
      */
     val dogfoodingVersion: String
-    private const val fallbackDfVersion = "2.0.0-SNAPSHOT.057"
+    private const val fallbackDfVersion = "2.0.0-SNAPSHOT.059"
 
     /**
      * The artifact for the Compiler Gradle plugin.

diff --git a/buildSrc/src/main/kotlin/io/spine/gradle/VersionGradleFile.kt b/buildSrc/src/main/kotlin/io/spine/gradle/VersionGradleFile.kt
@@ -33,14 +33,20 @@ import org.gradle.api.GradleException
  * Reads a `version.gradle.kts` file and resolves the `extra` properties it declares.
  *
  * [contentUnder] and [contentInBase] read the file (from the working tree or a base branch);
- * [keyForValue] and [valueForKey] resolve its `extra` properties. The following declaration
- * shapes are handled (see the `bump-version` skill):
+ * [keyForValue] and [valueForKey] resolve its `extra` properties. Each property is registered
+ * either with the current `extra.set("name", …)` call or the legacy `by extra(…)` property
+ * delegate that Gradle deprecated (the `bump-version` skill migrates the latter to the former);
+ * both spellings are recognized, so a file is read correctly whether or not it has migrated.
+ * The following value shapes are handled:
  *
- *  1. a literal: `val versionToPublish: String by extra("2.0.0-SNAPSHOT.182")`;
- *  2. an alias to another `extra`: `val versionToPublish by extra(compilerVersion)` paired
- *     with `val compilerVersion: String by extra("2.0.0-SNAPSHOT.043")`;
- *  3. an alias to a plain `val`: `val versionToPublish by extra(base)` paired with
- *     `val base = "2.0.0-SNAPSHOT.043"`.
+ *  1. a literal:
+ *     `extra.set("versionToPublish", "2.0.0-SNAPSHOT.182")`, or the legacy
+ *     `val versionToPublish: String by extra("2.0.0-SNAPSHOT.182")`;
+ *  2. an alias to a plain `val` (or, in the legacy spelling, to another `extra`):
+ *     `extra.set("versionToPublish", compilerVersion)` paired with
+ *     `val compilerVersion = "2.0.0-SNAPSHOT.043"`, or the legacy
+ *     `val versionToPublish by extra(compilerVersion)` paired with
+ *     `val compilerVersion: String by extra("2.0.0-SNAPSHOT.043")`.
  *
  * The publishing-version property is identified by [keyForValue] using the already-resolved
  * project version as an oracle, so the specific property name (`versionToPublish`,
@@ -56,10 +62,19 @@ internal object VersionGradleFile {
      */
     const val NAME = "version.gradle.kts"
 
+    // Legacy `by extra(…)` property-delegate spellings (deprecated by Gradle).
     private val literalExtra =
         Regex("""val\s+(\w+)\s*(?::\s*String)?\s+by\s+extra\(\s*"([^"]+)"\s*\)""")
     private val aliasExtra =
         Regex("""val\s+(\w+)\s*(?::\s*String)?\s+by\s+extra\(\s*([A-Za-z_]\w*)\s*\)""")
+
+    // Current `extra.set("name", …)` spellings.
+    private val literalSet =
+        Regex("""extra\.set\(\s*"(\w+)"\s*,\s*"([^"]+)"\s*\)""")
+    private val aliasSet =
+        Regex("""extra\.set\(\s*"(\w+)"\s*,\s*([A-Za-z_]\w*)\s*\)""")
+
+    // A plain `val name = "value"` that an alias may reference.
     private val plainAssignment =
         Regex("""val\s+(\w+)\s*(?::\s*String)?\s*=\s*"([^"]+)"""")
 
@@ -68,12 +83,12 @@ internal object VersionGradleFile {
      * string value.
      */
     private fun parse(content: String): Map<String, String> {
-        val literals = literalExtra.findAll(content)
+        val literals = (literalExtra.findAll(content) + literalSet.findAll(content))
             .associate { it.groupValues[1] to it.groupValues[2] }
         val plains = plainAssignment.findAll(content)
             .associate { it.groupValues[1] to it.groupValues[2] }
         val resolved = literals.toMutableMap()
-        aliasExtra.findAll(content).forEach { match ->
+        (aliasExtra.findAll(content) + aliasSet.findAll(content)).forEach { match ->
             val name = match.groupValues[1]
             val source = match.groupValues[2]
             if (name !in resolved) {

diff --git a/buildSrc/src/main/kotlin/kmp-module.gradle.kts b/buildSrc/src/main/kotlin/kmp-module.gradle.kts
@@ -38,6 +38,7 @@ import io.spine.gradle.javac.configureJavac
 import io.spine.gradle.kotlin.setFreeCompilerArgs
 import io.spine.gradle.publish.IncrementGuard
 import io.spine.gradle.report.license.LicenseReporter
+import io.spine.gradle.testing.configureLogging
 
 /**
  * Configures this [Project] as a Kotlin Multiplatform module.
@@ -161,11 +162,22 @@ java {
  *
  * Also, Kotlin and Java share the same test executor (JUnit), so tests
  * configuration is for both.
+ *
+ * The `jvmTest` task mirrors the setup made by `module-testing` for
+ * the `test` task of a `jvm-module` (`module-testing` itself cannot be
+ * applied here because it brings `java-library`, which conflicts with
+ * the Kotlin Multiplatform plugin). Unlike `module-testing`, no engine
+ * filter is imposed: `jvmTest` dependencies include the Kotest runner,
+ * which is a JUnit Platform engine of its own.
  */
 tasks {
     withType<JavaCompile>().configureEach {
         configureJavac()
     }
+    named<Test>("jvmTest") {
+        useJUnitPlatform()
+        configureLogging()
+    }
 }
 
 /**

diff --git a/buildSrc/src/test/kotlin/io/spine/gradle/VersionGradleFileSpec.kt b/buildSrc/src/test/kotlin/io/spine/gradle/VersionGradleFileSpec.kt
@@ -64,6 +64,28 @@ internal class VersionGradleFileSpec {
         VersionGradleFile.valueForKey(content, "versionToPublish") shouldBe "2.0.0-SNAPSHOT.043"
     }
 
+    @Test
+    fun `declared as a literal via 'extra set'`() {
+        val content = """
+            extra.set("versionToPublish", "2.0.0-SNAPSHOT.182")
+        """.trimIndent()
+
+        VersionGradleFile.keyForValue(content, "2.0.0-SNAPSHOT.182") shouldBe "versionToPublish"
+        VersionGradleFile.valueForKey(content, "versionToPublish") shouldBe "2.0.0-SNAPSHOT.182"
+    }
+
+    @Test
+    fun `declared as an alias via 'extra set'`() {
+        val content = """
+            val compilerVersion = "2.0.0-SNAPSHOT.043"
+            extra.set("compilerVersion", compilerVersion)
+            extra.set("versionToPublish", compilerVersion)
+        """.trimIndent()
+
+        VersionGradleFile.valueForKey(content, "versionToPublish") shouldBe "2.0.0-SNAPSHOT.043"
+        VersionGradleFile.valueForKey(content, "compilerVersion") shouldBe "2.0.0-SNAPSHOT.043"
+    }
+
     @Test
     fun `identified by the resolved project version, not a hard-coded name`() {
         val content = """

diff --git a/config b/config
diff --git a/docs/dependencies/dependencies.md b/docs/dependencies/dependencies.md
@@ -1,6 +1,6 @@
 
 
-# Dependencies of `io.spine.tools:compiler-api:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-api:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -1099,14 +1099,14 @@
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-api-tests:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-api-tests:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 ## Compile, tests, and tooling
@@ -1476,14 +1476,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:16 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:29 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-backend:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-backend:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -2586,14 +2586,14 @@ This report was generated on **Wed Jul 01 16:19:16 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-cli:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-cli:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -3855,14 +3855,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-gradle-api:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-gradle-api:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -4879,14 +4879,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-gradle-plugin:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-gradle-plugin:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -5947,14 +5947,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-jvm:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-jvm:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -7074,14 +7074,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-params:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-params:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -8172,14 +8172,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-protoc-plugin:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-protoc-plugin:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.google.code.findbugs. **Name** : jsr305. **Version** : 3.0.2.
@@ -9012,14 +9012,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-test-env:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-test-env:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -10118,14 +10118,14 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine.tools:compiler-testlib:2.0.0-SNAPSHOT.059`
+# Dependencies of `io.spine.tools:compiler-testlib:2.0.0-SNAPSHOT.060`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.22.0.
@@ -11331,6 +11331,6 @@ This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Wed Jul 01 16:19:17 WEST 2026** using 
+This report was generated on **Mon Jul 06 18:11:30 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
+2 −4		buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt
+24 −9		buildSrc/src/main/kotlin/io/spine/gradle/VersionGradleFile.kt
+12 −0		buildSrc/src/main/kotlin/kmp-module.gradle.kts
+22 −0		buildSrc/src/test/kotlin/io/spine/gradle/VersionGradleFileSpec.kt
+2 −2		scripts/publish-documentation/publish.sh
+28 −8		scripts/revalidate-versions.sh