Migrate performacne tests to occur on tests project

This will open up the ability to assert on JS and native which simply isn't possible with the Kotlin Compiler Testing infrastructure.

poko-compiler-plugin/build.gradle.kts

@@ -23,7 +23,6 @@ dependencies {
     testImplementation(libs.kotlin.compileTesting)
     testImplementation(libs.junit)
     testImplementation(libs.assertk)
-    testImplementation(libs.asm.util)
     testImplementation(libs.testParameterInjector)
 }
 

poko-compiler-plugin/src/test/kotlin/dev/drewhamilton/poko/PokoCompilerPluginTest.kt

@@ -130,21 +130,6 @@ class PokoCompilerPluginTest(
     }
     //endregion
 
-    //region Performance optimizations
-    @Test fun `int property does not emit hashCode method invocation`() {
-        testCompilation(
-            "api/Primitives",
-        ) {
-            val classFile = it.generatedFiles.single { it.name.endsWith(".class") }
-            val bytecode = bytecodeToText(classFile.readBytes())
-            assertThat(bytecode).all {
-                contains("java/lang/Long.hashCode")
-                doesNotContain("java/lang/Integer.hashCode")
-            }
-        }
-    }
-    //endregion
-
     private inline fun testCompilation(
         vararg sourceFileNames: String,
         pokoAnnotationName: String = "dev/drewhamilton/poko/Poko",

poko-tests/performance/build.gradle.kts

@@ -0,0 +1,13 @@
+plugins {
+    alias(libs.plugins.kotlin.jvm)
+}
+
+dependencies {
+    testImplementation(libs.junit)
+    testImplementation(libs.assertk)
+    testImplementation(libs.asm.util)
+}
+
+tasks.named("test") {
+    dependsOn(":poko-tests:compileKotlinJvm")
+}

poko-tests/performance/src/test/kotlin/JvmPerformanceTest.kt

@@ -0,0 +1,16 @@
+import assertk.all
+import assertk.assertThat
+import assertk.assertions.contains
+import assertk.assertions.doesNotContain
+import org.junit.Test
+
+class JvmPerformanceTest {
+    @Test fun `int property does not emit hashCode method invocation`() {
+        val classfile = jvmOutput("performance/IntAndLong.class")
+        val bytecode = bytecodeToText(classfile.readBytes())
+        assertThat(bytecode).all {
+            contains("java/lang/Long.hashCode")
+            doesNotContain("java/lang/Integer.hashCode")
+        }
+    }
+}

poko-compiler-plugin/src/test/kotlin/dev/drewhamilton/poko/asm.kt → poko-tests/performance/src/test/kotlin/asm.kt

@@ -1,5 +1,3 @@
-package dev.drewhamilton.poko
-
 import java.io.PrintWriter
 import java.io.StringWriter
 import org.objectweb.asm.ClassReader

poko-tests/performance/src/test/kotlin/sources.kt

@@ -0,0 +1,3 @@
+import java.io.File
+
+fun jvmOutput(relativePath: String) = File("../build/classes/kotlin/jvm/main", relativePath)

poko-tests/src/commonMain/kotlin/performance/IntAndLong.kt

@@ -0,0 +1,9 @@
+package performance
+
+import dev.drewhamilton.poko.Poko
+
+@Suppress("unused")
+@Poko class IntAndLong(
+    val int: Int,
+    val long: Long,
+)

settings.gradle.kts

@@ -20,4 +20,5 @@ include(
     ":poko-annotations",
     ":poko-gradle-plugin",
     ":poko-tests",
+    ":poko-tests:performance",
 )