From 8fc532ca22c8307671cee603c29d26ac3b0ec6c7 Mon Sep 17 00:00:00 2001
From: Sebastian Hartte <shartte@users.noreply.github.com>
Date: Fri, 5 Jan 2024 00:17:30 +0100
Subject: [PATCH] Add a test task to run the installer with real data from
 Neoforge.

---
 build.gradle | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/build.gradle b/build.gradle
index ca74ed7..1ab7371 100644
--- a/build.gradle
+++ b/build.gradle
@@ -65,6 +65,14 @@ ext {
     }
 }
 
+configurations {
+    testInstallerData {
+        canBeConsumed = false
+        canBeResolved = true
+        transitive = false
+    }
+}
+
 dependencies {
     implementation 'net.sf.jopt-simple:jopt-simple:5.0.4'
     implementation 'com.google.code.gson:gson:2.8.7'
@@ -72,6 +80,7 @@ dependencies {
 	testImplementation(platform('org.junit:junit-bom:5.7.2'))
 	testImplementation('org.junit.jupiter:junit-jupiter')
     compileOnly 'org.jetbrains:annotations:24.1.0'
+    testInstallerData 'net.neoforged:neoforge:20.4.76-beta:installer'
 }
 
 test {
@@ -153,6 +162,28 @@ tasks.register('testJar', Jar) {
     manifest.from(MANIFEST)
 }
 
+// Combine the shrunk jar with data from the current Neoforge installer
+tasks.register('productionTestJar', Jar) {
+    group = "build"
+    dependsOn shrinkJar
+    from zipTree(shrinkJar.archiveFile.get().asFile)
+    from(zipTree(configurations.testInstallerData.singleFile)) {
+        exclude '/**/*.class'
+    }
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    archiveClassifier = 'prodtest'
+    manifest.from(MANIFEST)
+}
+
+/**
+ * Run this installer that contains the data from a real Neoforge installer.
+ */
+tasks.register('runProductionTest', JavaExec) {
+    dependsOn tasks.named("productionTestJar")
+    mainClass = "-jar";
+    args productionTestJar.archiveFile.get()
+}
+
 publishing {
     publications {
         mavenJava(MavenPublication) {