1 files changed, 86 insertions, 0 deletions
diff --git a/src/functionalTest/java/gregtech/test/GT5TestMod.java b/src/functionalTest/java/gregtech/test/GT5TestMod.java
new file mode 100644
index 0000000000..88029f641d
--- /dev/null
+++ b/src/functionalTest/java/gregtech/test/GT5TestMod.java
@@ -0,0 +1,86 @@
+package gregtech.test;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.nio.file.FileSystems;
+import java.nio.file.Path;
+
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.util.ChatComponentText;
+
+import org.apache.commons.io.output.CloseShieldOutputStream;
+import org.junit.platform.engine.discovery.DiscoverySelectors;
+import org.junit.platform.launcher.Launcher;
+import org.junit.platform.launcher.LauncherDiscoveryRequest;
+import org.junit.platform.launcher.LauncherSession;
+import org.junit.platform.launcher.TestPlan;
+import org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder;
+import org.junit.platform.launcher.core.LauncherFactory;
+import org.junit.platform.launcher.listeners.SummaryGeneratingListener;
+import org.junit.platform.launcher.listeners.TestExecutionSummary;
+import org.junit.platform.reporting.legacy.xml.LegacyXmlReportGeneratingListener;
+
+import cpw.mods.fml.common.FMLCommonHandler;
+import cpw.mods.fml.common.Mod;
+import cpw.mods.fml.common.event.FMLServerStartedEvent;
+
+@Mod(modid = "gt5-tests", name = "GT5 Dev Tests", version = "1.0", dependencies = "required-after:gregtech")
+public class GT5TestMod {
+
+    @Mod.EventHandler
+    public void onServerStarted(FMLServerStartedEvent event) {
+        MinecraftServer.getServer()
+            .addChatMessage(new ChatComponentText("Running GT5 unit tests..."));
+        runTests();
+        MinecraftServer.getServer()
+            .addChatMessage(new ChatComponentText("Running GT5 unit tests finished"));
+    }
+
+    private void runTests() {
+        // https://junit.org/junit5/docs/current/user-guide/#launcher-api
+        System.setProperty("junit.platform.reporting.open.xml.enabled", "false");
+        final Path testsXmlOutDir = FileSystems.getDefault()
+            .getPath("./junit-out/")
+            .toAbsolutePath();
+        final File testsXmlOutDirFile = testsXmlOutDir.toFile();
+        testsXmlOutDirFile.mkdirs();
+        {
+            File[] fileList = testsXmlOutDirFile.listFiles();
+            if (fileList != null) {
+                for (File child : fileList) {
+                    if (child.isFile() && child.getName()
+                        .endsWith(".xml")) {
+                        child.delete();
+                    }
+                }
+            }
+        }
+        final LauncherDiscoveryRequest discovery = LauncherDiscoveryRequestBuilder.request()
+            .selectors(DiscoverySelectors.selectPackage("gregtech.test"))
+            .build();
+        final SummaryGeneratingListener summaryGenerator = new SummaryGeneratingListener();
+        final TestExecutionSummary summary;
+        try (PrintWriter stderrWriter = new PrintWriter(new CloseShieldOutputStream(System.err), true)) {
+            final LegacyXmlReportGeneratingListener xmlGenerator = new LegacyXmlReportGeneratingListener(
+                testsXmlOutDir,
+                stderrWriter);
+            try (LauncherSession session = LauncherFactory.openSession()) {
+                final Launcher launcher = session.getLauncher();
+                final TestPlan plan = launcher.discover(discovery);
+                launcher.registerTestExecutionListeners(summaryGenerator, xmlGenerator);
+                launcher.execute(plan);
+            }
+            summary = summaryGenerator.getSummary();
+
+            summary.printFailuresTo(stderrWriter, 32);
+            summary.printTo(stderrWriter);
+            stderrWriter.flush();
+        }
+        // Throw an exception if running via `runServer`
+        if (summary.getTotalFailureCount() > 0 && FMLCommonHandler.instance()
+            .getSide()
+            .isServer()) {
+            throw new RuntimeException("Some of the unit tests failed to execute, check the log for details");
+        }
+    }
+}