Added tests and updated changelog

Author: stefankoppier

compiler-plugin/src/test/kotlin/tech/mappie/testing/objects5/Object5WithFromValueTest.kt

@@ -0,0 +1,58 @@
+package tech.mappie.testing.objects5
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import tech.mappie.testing.MappieTestCase
+
+class Object5WithFromValueTest : MappieTestCase() {
+
+    data class Input5(val float: Float)
+    data class Output(val first: Long, val second: Long, val third: Long, val fourth: String, val float: Float)
+
+    @Test
+    fun `map five data classes into one should succeed`() {
+        compile {
+            file("Test.kt",
+                """
+                import tech.mappie.api.ObjectMappie5
+                import tech.mappie.testing.objects5.Object5WithFromValueTest.*
+
+                class Mapper : ObjectMappie5<Long, Long, Long, String, Input5, Output>()
+                """
+            )
+        } satisfies {
+            isOk()
+            hasNoWarningsOrErrors()
+
+            val mapper = objectMappie5<Long, Long, Long, String, Input5, Output>()
+
+            assertThat(mapper.map(1, 2, 3, "value", Input5(1.0f)))
+                .isEqualTo(Output(1, 2, 3, "value", 1.0f))
+        }
+    }
+
+    @Test
+    fun `map five data classes into one with run should fail`() {
+        compile {
+            file("Test.kt",
+                """
+                import tech.mappie.api.ObjectMappie5
+                import tech.mappie.testing.objects5.Object5WithFromValueTest.*
+
+                class Mapper : ObjectMappie5<Long, Long, Long, String, Input5, Output>() {
+                    override fun map(first: Long, second: Long, third: Long, fourth: String, fifth: Input5) = mapping {
+                        to::fourth fromValue run { uppercase("test") }
+                        to::float fromProperty fifth::float transform { it + 1 }
+                    }
+                }
+
+                private fun uppercase(value: String) = value.uppercase()
+                """
+            )
+        } satisfies {
+            isCompilationError()
+            hasErrorMessage(6,
+            "The function 'run' was called as an extension method on the mapping dsl which does not exist after compilation")
+        }
+    }
+}

testutil/src/main/kotlin/tech/mappie/testing/MappieTestCase.kt

@@ -5,6 +5,7 @@ import tech.mappie.api.EnumMappie
 import tech.mappie.api.ObjectMappie
 import tech.mappie.api.ObjectMappie2
 import tech.mappie.api.ObjectMappie3
+import tech.mappie.api.ObjectMappie5
 import tech.mappie.testing.compilation.compile
 import tech.mappie.testing.compilation.CompilationDsl
 import java.io.File
@@ -40,4 +41,10 @@ abstract class MappieTestCase {
             .constructors
             .first()
             .call(*args)
+
+    protected fun <FROM1, FROM2, FROM3, FROM4, FROM5, TO> CompilationAssertionDsl.objectMappie5(name: String = "Mapper", vararg args: Any?): ObjectMappie5<FROM1, FROM2, FROM3, FROM4, FROM5, TO> =
+        classLoader.loadObjectMappie5Class<FROM1, FROM2, FROM3, FROM4, FROM5, TO>(name)
+            .constructors
+            .first()
+            .call(*args)
 }

website/src/changelog.md

@@ -2,7 +2,7 @@
 title: "Changelog"
 layout: "layouts/changelog.html"
 changelog:
-  - date: "2025-10-22"
+  - date: "2025-10-24"
     title: "v2.2.20-1.6.1"
     items:
       - "[#290](https://github.com/Mr-Mappie/mappie/issues/290) Fix IndexOutOfBoundsException with generic target type."